[rt] Update to 4.19.13-rt10
This commit is contained in:
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@ -23,6 +23,9 @@ linux (4.19.13-2) UNRELEASED; urgency=medium
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* [mipsel, mips64el] Enable DRM_AST and FB_SM750 for loongson-3
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* [mipsel, mips64el] Enable DRM_AST and FB_SM750 for loongson-3
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install ast and sm750fb to loongson-3's fb-modules
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install ast and sm750fb to loongson-3's fb-modules
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[ Romain Perier ]
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* [rt] Update to 4.19.13-rt10
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-- John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Sun, 30 Dec 2018 10:30:57 +0100
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-- John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Sun, 30 Dec 2018 10:30:57 +0100
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linux (4.19.13-1) unstable; urgency=medium
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linux (4.19.13-1) unstable; urgency=medium
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@ -1,7 +1,7 @@
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Date: Thu, 13 Sep 2018 13:30:18 +0200
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Date: Thu, 13 Sep 2018 13:30:18 +0200
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Subject: [PATCH 1/7] ARM: at91: add TCB registers definitions
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Subject: [PATCH 1/7] ARM: at91: add TCB registers definitions
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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Add registers and bits definitions for the timer counter blocks found on
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Add registers and bits definitions for the timer counter blocks found on
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Atmel ARM SoCs.
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Atmel ARM SoCs.
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@ -2,7 +2,7 @@ From: Peter Zijlstra <peterz@infradead.org>
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Date: Mon, 28 May 2018 15:24:20 +0200
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Date: Mon, 28 May 2018 15:24:20 +0200
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Subject: [PATCH 1/4] Split IRQ-off and zone->lock while freeing pages from PCP
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Subject: [PATCH 1/4] Split IRQ-off and zone->lock while freeing pages from PCP
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list #1
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list #1
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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Split the IRQ-off section while accessing the PCP list from zone->lock
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Split the IRQ-off section while accessing the PCP list from zone->lock
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while freeing pages.
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while freeing pages.
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@ -2,7 +2,7 @@ From: Peter Zijlstra <peterz@infradead.org>
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Date: Mon, 28 May 2018 15:24:21 +0200
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Date: Mon, 28 May 2018 15:24:21 +0200
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Subject: [PATCH 2/4] Split IRQ-off and zone->lock while freeing pages from PCP
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Subject: [PATCH 2/4] Split IRQ-off and zone->lock while freeing pages from PCP
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list #2
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list #2
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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Split the IRQ-off section while accessing the PCP list from zone->lock
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Split the IRQ-off section while accessing the PCP list from zone->lock
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while freeing pages.
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while freeing pages.
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@ -2,7 +2,7 @@ From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Date: Thu, 13 Sep 2018 13:30:19 +0200
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Date: Thu, 13 Sep 2018 13:30:19 +0200
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Subject: [PATCH 2/7] clocksource/drivers: Add a new driver for the Atmel ARM
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Subject: [PATCH 2/7] clocksource/drivers: Add a new driver for the Atmel ARM
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TC blocks
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TC blocks
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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Add a driver for the Atmel Timer Counter Blocks. This driver provides a
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Add a driver for the Atmel Timer Counter Blocks. This driver provides a
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clocksource and two clockevent devices.
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clocksource and two clockevent devices.
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@ -2,7 +2,7 @@ From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Date: Thu, 13 Sep 2018 13:30:20 +0200
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Date: Thu, 13 Sep 2018 13:30:20 +0200
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Subject: [PATCH 3/7] clocksource/drivers: timer-atmel-tcb: add clockevent
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Subject: [PATCH 3/7] clocksource/drivers: timer-atmel-tcb: add clockevent
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device on separate channel
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device on separate channel
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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Add an other clockevent device that uses a separate TCB channel when
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Add an other clockevent device that uses a separate TCB channel when
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available.
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available.
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@ -1,7 +1,7 @@
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From: Thomas Gleixner <tglx@linutronix.de>
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Mon, 28 May 2018 15:24:22 +0200
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Date: Mon, 28 May 2018 15:24:22 +0200
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Subject: [PATCH 3/4] mm/SLxB: change list_lock to raw_spinlock_t
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Subject: [PATCH 3/4] mm/SLxB: change list_lock to raw_spinlock_t
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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The list_lock is used with used with IRQs off on RT. Make it a raw_spinlock_t
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The list_lock is used with used with IRQs off on RT. Make it a raw_spinlock_t
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otherwise the interrupts won't be disabled on -RT. The locking rules remain
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otherwise the interrupts won't be disabled on -RT. The locking rules remain
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@ -1,7 +1,7 @@
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Date: Thu, 13 Sep 2018 13:30:21 +0200
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Date: Thu, 13 Sep 2018 13:30:21 +0200
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Subject: [PATCH 4/7] clocksource/drivers: atmel-pit: make option silent
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Subject: [PATCH 4/7] clocksource/drivers: atmel-pit: make option silent
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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To conform with the other option, make the ATMEL_PIT option silent so it
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To conform with the other option, make the ATMEL_PIT option silent so it
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can be selected from the platform
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can be selected from the platform
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@ -2,7 +2,7 @@ From: Thomas Gleixner <tglx@linutronix.de>
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Date: Thu, 21 Jun 2018 17:29:19 +0200
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Date: Thu, 21 Jun 2018 17:29:19 +0200
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Subject: [PATCH 4/4] mm/SLUB: delay giving back empty slubs to IRQ enabled
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Subject: [PATCH 4/4] mm/SLUB: delay giving back empty slubs to IRQ enabled
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regions
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regions
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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__free_slab() is invoked with disabled interrupts which increases the
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__free_slab() is invoked with disabled interrupts which increases the
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irq-off time while __free_pages() is doing the work.
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irq-off time while __free_pages() is doing the work.
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@ -1,7 +1,7 @@
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Date: Thu, 13 Sep 2018 13:30:22 +0200
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Date: Thu, 13 Sep 2018 13:30:22 +0200
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Subject: [PATCH 5/7] ARM: at91: Implement clocksource selection
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Subject: [PATCH 5/7] ARM: at91: Implement clocksource selection
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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Allow selecting and unselecting the PIT clocksource driver so it doesn't
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Allow selecting and unselecting the PIT clocksource driver so it doesn't
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have to be compile when unused.
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have to be compile when unused.
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@ -1,7 +1,7 @@
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Date: Thu, 13 Sep 2018 13:30:23 +0200
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Date: Thu, 13 Sep 2018 13:30:23 +0200
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Subject: [PATCH 6/7] ARM: configs: at91: use new TCB timer driver
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Subject: [PATCH 6/7] ARM: configs: at91: use new TCB timer driver
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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Unselecting ATMEL_TCLIB switches the TCB timer driver from tcb_clksrc to
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Unselecting ATMEL_TCLIB switches the TCB timer driver from tcb_clksrc to
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timer-atmel-tcb.
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timer-atmel-tcb.
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@ -1,7 +1,7 @@
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Date: Thu, 13 Sep 2018 13:30:24 +0200
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Date: Thu, 13 Sep 2018 13:30:24 +0200
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Subject: [PATCH 7/7] ARM: configs: at91: unselect PIT
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Subject: [PATCH 7/7] ARM: configs: at91: unselect PIT
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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The PIT is not required anymore to successfully boot and may actually harm
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The PIT is not required anymore to successfully boot and may actually harm
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in case preempt-rt is used because the PIT interrupt is shared.
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in case preempt-rt is used because the PIT interrupt is shared.
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From: "Yadi.hu" <yadi.hu@windriver.com>
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From: "Yadi.hu" <yadi.hu@windriver.com>
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Date: Wed, 10 Dec 2014 10:32:09 +0800
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Date: Wed, 10 Dec 2014 10:32:09 +0800
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Subject: ARM: enable irq in translation/section permission fault handlers
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Subject: ARM: enable irq in translation/section permission fault handlers
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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Probably happens on all ARM, with
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Probably happens on all ARM, with
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CONFIG_PREEMPT_RT_FULL
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CONFIG_PREEMPT_RT_FULL
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@ -4,7 +4,7 @@ Subject: [PATCH] Drivers: hv: vmbus: include header for get_irq_regs()
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MIME-Version: 1.0
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Content-Transfer-Encoding: 8bit
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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On !RT the header file get_irq_regs() gets pulled in via other header files. On
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On !RT the header file get_irq_regs() gets pulled in via other header files. On
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RT it does not and the build fails:
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RT it does not and the build fails:
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@ -1,7 +1,7 @@
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From: Paul E. McKenney <paulmck@linux.ibm.com>
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From: Paul E. McKenney <paulmck@linux.ibm.com>
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Date: Mon, 29 Oct 2018 11:53:01 +0100
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Date: Mon, 29 Oct 2018 11:53:01 +0100
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Subject: [PATCH] EXP rcu: Revert expedited GP parallelization cleverness
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Subject: [PATCH] EXP rcu: Revert expedited GP parallelization cleverness
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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(Commit 258ba8e089db23f760139266c232f01bad73f85c from linux-rcu)
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(Commit 258ba8e089db23f760139266c232f01bad73f85c from linux-rcu)
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@ -1,7 +1,7 @@
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Thu, 21 Mar 2013 19:01:05 +0100
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Date: Thu, 21 Mar 2013 19:01:05 +0100
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Subject: printk: Drop the logbuf_lock more often
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Subject: printk: Drop the logbuf_lock more often
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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The lock is hold with irgs off. The latency drops 500us+ on my arm bugs
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The lock is hold with irgs off. The latency drops 500us+ on my arm bugs
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with a "full" buffer after executing "dmesg" on the shell.
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with a "full" buffer after executing "dmesg" on the shell.
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@ -1,7 +1,7 @@
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From: Josh Cartwright <joshc@ni.com>
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From: Josh Cartwright <joshc@ni.com>
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Date: Thu, 11 Feb 2016 11:54:01 -0600
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Date: Thu, 11 Feb 2016 11:54:01 -0600
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Subject: KVM: arm/arm64: downgrade preempt_disable()d region to migrate_disable()
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Subject: KVM: arm/arm64: downgrade preempt_disable()d region to migrate_disable()
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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kvm_arch_vcpu_ioctl_run() disables the use of preemption when updating
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kvm_arch_vcpu_ioctl_run() disables the use of preemption when updating
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the vgic and timer states to prevent the calling task from migrating to
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the vgic and timer states to prevent the calling task from migrating to
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@ -5,7 +5,7 @@ Cc: Anna Schumaker <anna.schumaker@netapp.com>,
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linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
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linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
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tglx@linutronix.de
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tglx@linutronix.de
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Subject: NFSv4: replace seqcount_t with a seqlock_t
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Subject: NFSv4: replace seqcount_t with a seqlock_t
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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The raw_write_seqcount_begin() in nfs4_reclaim_open_state() bugs me
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The raw_write_seqcount_begin() in nfs4_reclaim_open_state() bugs me
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because it maps to preempt_disable() in -RT which I can't have at this
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because it maps to preempt_disable() in -RT which I can't have at this
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Sat, 27 May 2017 19:02:06 +0200
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Date: Sat, 27 May 2017 19:02:06 +0200
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Subject: kernel/sched/core: add migrate_disable()
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Subject: kernel/sched/core: add migrate_disable()
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
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---
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---
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include/linux/preempt.h | 23 ++++++++
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include/linux/preempt.h | 23 ++++++++
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* boot command line:
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* boot command line:
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--- a/kernel/sched/core.c
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--- a/kernel/sched/core.c
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+++ b/kernel/sched/core.c
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+++ b/kernel/sched/core.c
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@@ -1007,7 +1007,15 @@ void set_cpus_allowed_common(struct task
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@@ -1006,7 +1006,15 @@ void set_cpus_allowed_common(struct task
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p->nr_cpus_allowed = cpumask_weight(new_mask);
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p->nr_cpus_allowed = cpumask_weight(new_mask);
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}
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}
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{
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{
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struct rq *rq = task_rq(p);
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struct rq *rq = task_rq(p);
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bool queued, running;
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bool queued, running;
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@@ -1036,6 +1044,20 @@ void do_set_cpus_allowed(struct task_str
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@@ -1035,6 +1043,20 @@ void do_set_cpus_allowed(struct task_str
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set_curr_task(rq, p);
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set_curr_task(rq, p);
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}
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}
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/*
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/*
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* Change a given task's CPU affinity. Migrate the thread to a
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* Change a given task's CPU affinity. Migrate the thread to a
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* proper CPU and schedule it away if the CPU it's executing on
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* proper CPU and schedule it away if the CPU it's executing on
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@@ -1094,9 +1116,16 @@ static int __set_cpus_allowed_ptr(struct
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@@ -1093,9 +1115,16 @@ static int __set_cpus_allowed_ptr(struct
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}
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}
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/* Can the task run on the task's current CPU? If so, we're done */
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/* Can the task run on the task's current CPU? If so, we're done */
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dest_cpu = cpumask_any_and(cpu_valid_mask, new_mask);
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dest_cpu = cpumask_any_and(cpu_valid_mask, new_mask);
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if (task_running(rq, p) || p->state == TASK_WAKING) {
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if (task_running(rq, p) || p->state == TASK_WAKING) {
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struct migration_arg arg = { p, dest_cpu };
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struct migration_arg arg = { p, dest_cpu };
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@@ -7059,3 +7088,100 @@ const u32 sched_prio_to_wmult[40] = {
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@@ -7058,3 +7087,100 @@ const u32 sched_prio_to_wmult[40] = {
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};
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};
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||||||
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#undef CREATE_TRACE_POINTS
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#undef CREATE_TRACE_POINTS
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||||||
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@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Wed, 11 Oct 2017 17:43:49 +0200
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Date: Wed, 11 Oct 2017 17:43:49 +0200
|
||||||
Subject: apparmor: use a locallock instead preempt_disable()
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Subject: apparmor: use a locallock instead preempt_disable()
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
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get_buffers() disables preemption which acts as a lock for the per-CPU
|
get_buffers() disables preemption which acts as a lock for the per-CPU
|
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variable. Since we can't disable preemption here on RT, a local_lock is
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variable. Since we can't disable preemption here on RT, a local_lock is
|
||||||
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@ -1,7 +1,7 @@
|
||||||
From: Anders Roxell <anders.roxell@linaro.org>
|
From: Anders Roxell <anders.roxell@linaro.org>
|
||||||
Date: Thu, 14 May 2015 17:52:17 +0200
|
Date: Thu, 14 May 2015 17:52:17 +0200
|
||||||
Subject: arch/arm64: Add lazy preempt support
|
Subject: arch/arm64: Add lazy preempt support
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
arm64 is missing support for PREEMPT_RT. The main feature which is
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arm64 is missing support for PREEMPT_RT. The main feature which is
|
||||||
lacking is support for lazy preemption. The arch-specific entry code,
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lacking is support for lazy preemption. The arch-specific entry code,
|
||||||
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@ -1,7 +1,7 @@
|
||||||
From: Frank Rowand <frank.rowand@am.sony.com>
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From: Frank Rowand <frank.rowand@am.sony.com>
|
||||||
Date: Mon, 19 Sep 2011 14:51:14 -0700
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Date: Mon, 19 Sep 2011 14:51:14 -0700
|
||||||
Subject: arm: Convert arm boot_lock to raw
|
Subject: arm: Convert arm boot_lock to raw
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
The arm boot_lock is used by the secondary processor startup code. The locking
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The arm boot_lock is used by the secondary processor startup code. The locking
|
||||||
task is the idle thread, which has idle->sched_class == &idle_sched_class.
|
task is the idle thread, which has idle->sched_class == &idle_sched_class.
|
||||||
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@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Fri, 1 Dec 2017 10:42:03 +0100
|
Date: Fri, 1 Dec 2017 10:42:03 +0100
|
||||||
Subject: [PATCH] arm*: disable NEON in kernel mode
|
Subject: [PATCH] arm*: disable NEON in kernel mode
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
NEON in kernel mode is used by the crypto algorithms and raid6 code.
|
NEON in kernel mode is used by the crypto algorithms and raid6 code.
|
||||||
While the raid6 code looks okay, the crypto algorithms do not: NEON
|
While the raid6 code looks okay, the crypto algorithms do not: NEON
|
||||||
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|
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@ -1,7 +1,7 @@
|
||||||
Subject: arm: Enable highmem for rt
|
Subject: arm: Enable highmem for rt
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Wed, 13 Feb 2013 11:03:11 +0100
|
Date: Wed, 13 Feb 2013 11:03:11 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
fixup highmem for ARM.
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fixup highmem for ARM.
|
||||||
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|
||||||
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@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Mon, 11 Mar 2013 21:37:27 +0100
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Date: Mon, 11 Mar 2013 21:37:27 +0100
|
||||||
Subject: arm/highmem: Flush tlb on unmap
|
Subject: arm/highmem: Flush tlb on unmap
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
The tlb should be flushed on unmap and thus make the mapping entry
|
The tlb should be flushed on unmap and thus make the mapping entry
|
||||||
invalid. This is only done in the non-debug case which does not look
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invalid. This is only done in the non-debug case which does not look
|
||||||
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@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 22 Dec 2016 17:28:33 +0100
|
Date: Thu, 22 Dec 2016 17:28:33 +0100
|
||||||
Subject: [PATCH] arm: include definition for cpumask_t
|
Subject: [PATCH] arm: include definition for cpumask_t
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
This definition gets pulled in by other files. With the (later) split of
|
This definition gets pulled in by other files. With the (later) split of
|
||||||
RCU and spinlock.h it won't compile anymore.
|
RCU and spinlock.h it won't compile anymore.
|
||||||
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@ -1,7 +1,7 @@
|
||||||
From: Yang Shi <yang.shi@linaro.org>
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From: Yang Shi <yang.shi@linaro.org>
|
||||||
Date: Thu, 10 Nov 2016 16:17:55 -0800
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Date: Thu, 10 Nov 2016 16:17:55 -0800
|
||||||
Subject: [PATCH] arm: kprobe: replace patch_lock to raw lock
|
Subject: [PATCH] arm: kprobe: replace patch_lock to raw lock
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
When running kprobe on -rt kernel, the below bug is caught:
|
When running kprobe on -rt kernel, the below bug is caught:
|
||||||
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|
||||||
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@ -1,7 +1,7 @@
|
||||||
Subject: arm: Add support for lazy preemption
|
Subject: arm: Add support for lazy preemption
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Wed, 31 Oct 2012 12:04:11 +0100
|
Date: Wed, 31 Oct 2012 12:04:11 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
Implement the arm pieces for lazy preempt.
|
Implement the arm pieces for lazy preempt.
|
||||||
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|
||||||
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@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Fri, 20 Sep 2013 14:31:54 +0200
|
Date: Fri, 20 Sep 2013 14:31:54 +0200
|
||||||
Subject: arm/unwind: use a raw_spin_lock
|
Subject: arm/unwind: use a raw_spin_lock
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
Mostly unwind is done with irqs enabled however SLUB may call it with
|
Mostly unwind is done with irqs enabled however SLUB may call it with
|
||||||
irqs disabled while creating a new SLUB cache.
|
irqs disabled while creating a new SLUB cache.
|
||||||
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@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 26 Jul 2018 09:13:42 +0200
|
Date: Thu, 26 Jul 2018 09:13:42 +0200
|
||||||
Subject: [PATCH] arm64: KVM: compute_layout before altenates are applied
|
Subject: [PATCH] arm64: KVM: compute_layout before altenates are applied
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
compute_layout() is invoked as part of an alternative fixup under
|
compute_layout() is invoked as part of an alternative fixup under
|
||||||
stop_machine() and needs a sleeping lock as part of get_random_long().
|
stop_machine() and needs a sleeping lock as part of get_random_long().
|
||||||
|
|
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@ -2,7 +2,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Wed, 25 Jul 2018 14:02:38 +0200
|
Date: Wed, 25 Jul 2018 14:02:38 +0200
|
||||||
Subject: [PATCH] arm64: fpsimd: use preemp_disable in addition to
|
Subject: [PATCH] arm64: fpsimd: use preemp_disable in addition to
|
||||||
local_bh_disable()
|
local_bh_disable()
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
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|
||||||
In v4.16-RT I noticed a number of warnings from task_fpsimd_load(). The
|
In v4.16-RT I noticed a number of warnings from task_fpsimd_load(). The
|
||||||
code disables BH and expects that it is not preemptible. On -RT the
|
code disables BH and expects that it is not preemptible. On -RT the
|
||||||
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@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Wed, 09 Mar 2016 10:51:06 +0100
|
Date: Wed, 09 Mar 2016 10:51:06 +0100
|
||||||
Subject: arm: at91: do not disable/enable clocks in a row
|
Subject: arm: at91: do not disable/enable clocks in a row
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Currently the driver will disable the clock and enable it one line later
|
Currently the driver will disable the clock and enable it one line later
|
||||||
if it is switching from periodic mode into one shot.
|
if it is switching from periodic mode into one shot.
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Tue, 13 Mar 2018 13:49:16 +0100
|
Date: Tue, 13 Mar 2018 13:49:16 +0100
|
||||||
Subject: [PATCH] block: blk-mq: move blk_queue_usage_counter_release()
|
Subject: [PATCH] block: blk-mq: move blk_queue_usage_counter_release()
|
||||||
into process context
|
into process context
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
| BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:914
|
| BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:914
|
||||||
| in_atomic(): 1, irqs_disabled(): 0, pid: 255, name: kworker/u257:6
|
| in_atomic(): 1, irqs_disabled(): 0, pid: 255, name: kworker/u257:6
|
||||||
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|
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@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 29 Jan 2015 15:10:08 +0100
|
Date: Thu, 29 Jan 2015 15:10:08 +0100
|
||||||
Subject: block/mq: don't complete requests via IPI
|
Subject: block/mq: don't complete requests via IPI
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
The IPI runs in hardirq context and there are sleeping locks. This patch
|
The IPI runs in hardirq context and there are sleeping locks. This patch
|
||||||
moves the completion into a workqueue.
|
moves the completion into a workqueue.
|
||||||
|
|
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@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Tue, 14 Jul 2015 14:26:34 +0200
|
Date: Tue, 14 Jul 2015 14:26:34 +0200
|
||||||
Subject: block/mq: do not invoke preempt_disable()
|
Subject: block/mq: do not invoke preempt_disable()
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
preempt_disable() and get_cpu() don't play well together with the sleeping
|
preempt_disable() and get_cpu() don't play well together with the sleeping
|
||||||
locks it tries to allocate later.
|
locks it tries to allocate later.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Wed, 9 Apr 2014 10:37:23 +0200
|
Date: Wed, 9 Apr 2014 10:37:23 +0200
|
||||||
Subject: block: mq: use cpu_light()
|
Subject: block: mq: use cpu_light()
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
there is a might sleep splat because get_cpu() disables preemption and
|
there is a might sleep splat because get_cpu() disables preemption and
|
||||||
later we grab a lock. As a workaround for this we use get_cpu_light().
|
later we grab a lock. As a workaround for this we use get_cpu_light().
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: block: Use cpu_chill() for retry loops
|
Subject: block: Use cpu_chill() for retry loops
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Thu, 20 Dec 2012 18:28:26 +0100
|
Date: Thu, 20 Dec 2012 18:28:26 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Retry loops on RT might loop forever when the modifying side was
|
Retry loops on RT might loop forever when the modifying side was
|
||||||
preempted. Steven also observed a live lock when there was a
|
preempted. Steven also observed a live lock when there was a
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Tue, 3 Jul 2018 18:19:48 +0200
|
Date: Tue, 3 Jul 2018 18:19:48 +0200
|
||||||
Subject: [PATCH] cgroup: use irqsave in cgroup_rstat_flush_locked()
|
Subject: [PATCH] cgroup: use irqsave in cgroup_rstat_flush_locked()
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
All callers of cgroup_rstat_flush_locked() acquire cgroup_rstat_lock
|
All callers of cgroup_rstat_flush_locked() acquire cgroup_rstat_lock
|
||||||
either with spin_lock_irq() or spin_lock_irqsave().
|
either with spin_lock_irq() or spin_lock_irqsave().
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Fri, 13 Feb 2015 15:52:24 +0100
|
Date: Fri, 13 Feb 2015 15:52:24 +0100
|
||||||
Subject: cgroups: use simple wait in css_release()
|
Subject: cgroups: use simple wait in css_release()
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
To avoid:
|
To avoid:
|
||||||
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:914
|
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:914
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Benedikt Spranger <b.spranger@linutronix.de>
|
From: Benedikt Spranger <b.spranger@linutronix.de>
|
||||||
Date: Mon, 8 Mar 2010 18:57:04 +0100
|
Date: Mon, 8 Mar 2010 18:57:04 +0100
|
||||||
Subject: clocksource: TCLIB: Allow higher clock rates for clock events
|
Subject: clocksource: TCLIB: Allow higher clock rates for clock events
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
As default the TCLIB uses the 32KiHz base clock rate for clock events.
|
As default the TCLIB uses the 32KiHz base clock rate for clock events.
|
||||||
Add a compile time selection to allow higher clock resulution.
|
Add a compile time selection to allow higher clock resulution.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: completion: Use simple wait queues
|
Subject: completion: Use simple wait queues
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Fri, 11 Jan 2013 11:23:51 +0100
|
Date: Fri, 11 Jan 2013 11:23:51 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Completions have no long lasting callbacks and therefor do not need
|
Completions have no long lasting callbacks and therefor do not need
|
||||||
the complex waitqueue variant. Use simple waitqueues which reduces the
|
the complex waitqueue variant. Use simple waitqueues which reduces the
|
||||||
|
@ -300,7 +300,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
EXPORT_SYMBOL(completion_done);
|
EXPORT_SYMBOL(completion_done);
|
||||||
--- a/kernel/sched/core.c
|
--- a/kernel/sched/core.c
|
||||||
+++ b/kernel/sched/core.c
|
+++ b/kernel/sched/core.c
|
||||||
@@ -7108,7 +7108,10 @@ void migrate_disable(void)
|
@@ -7107,7 +7107,10 @@ void migrate_disable(void)
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
#ifdef CONFIG_SCHED_DEBUG
|
#ifdef CONFIG_SCHED_DEBUG
|
||||||
|
@ -312,7 +312,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
if (p->migrate_disable) {
|
if (p->migrate_disable) {
|
||||||
@@ -7138,7 +7141,10 @@ void migrate_enable(void)
|
@@ -7137,7 +7140,10 @@ void migrate_enable(void)
|
||||||
}
|
}
|
||||||
|
|
||||||
#ifdef CONFIG_SCHED_DEBUG
|
#ifdef CONFIG_SCHED_DEBUG
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: sched: Use the proper LOCK_OFFSET for cond_resched()
|
Subject: sched: Use the proper LOCK_OFFSET for cond_resched()
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Sun, 17 Jul 2011 22:51:33 +0200
|
Date: Sun, 17 Jul 2011 22:51:33 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
RT does not increment preempt count when a 'sleeping' spinlock is
|
RT does not increment preempt count when a 'sleeping' spinlock is
|
||||||
locked. Update PREEMPT_LOCK_OFFSET for that case.
|
locked. Update PREEMPT_LOCK_OFFSET for that case.
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
||||||
Date: Sun, 16 Oct 2016 05:11:54 +0200
|
Date: Sun, 16 Oct 2016 05:11:54 +0200
|
||||||
Subject: [PATCH] connector/cn_proc: Protect send_msg() with a local lock
|
Subject: [PATCH] connector/cn_proc: Protect send_msg() with a local lock
|
||||||
on RT
|
on RT
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:931
|
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:931
|
||||||
|in_atomic(): 1, irqs_disabled(): 0, pid: 31807, name: sleep
|
|in_atomic(): 1, irqs_disabled(): 0, pid: 31807, name: sleep
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: cpu/hotplug: Implement CPU pinning
|
Subject: cpu/hotplug: Implement CPU pinning
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Wed, 19 Jul 2017 17:31:20 +0200
|
Date: Wed, 19 Jul 2017 17:31:20 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
---
|
---
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 9 Apr 2015 15:23:01 +0200
|
Date: Thu, 9 Apr 2015 15:23:01 +0200
|
||||||
Subject: cpufreq: drop K8's driver from beeing selected
|
Subject: cpufreq: drop K8's driver from beeing selected
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Ralf posted a picture of a backtrace from
|
Ralf posted a picture of a backtrace from
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RT
|
Subject: cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RT
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Wed, 14 Dec 2011 01:03:49 +0100
|
Date: Wed, 14 Dec 2011 01:03:49 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
There are "valid" GFP_ATOMIC allocations such as
|
There are "valid" GFP_ATOMIC allocations such as
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Mike Galbraith <efault@gmx.de>
|
From: Mike Galbraith <efault@gmx.de>
|
||||||
Date: Sun, 8 Jan 2017 09:32:25 +0100
|
Date: Sun, 8 Jan 2017 09:32:25 +0100
|
||||||
Subject: [PATCH] cpuset: Convert callback_lock to raw_spinlock_t
|
Subject: [PATCH] cpuset: Convert callback_lock to raw_spinlock_t
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
The two commits below add up to a cpuset might_sleep() splat for RT:
|
The two commits below add up to a cpuset might_sleep() splat for RT:
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Fri, 21 Feb 2014 17:24:04 +0100
|
Date: Fri, 21 Feb 2014 17:24:04 +0100
|
||||||
Subject: crypto: Reduce preempt disabled regions, more algos
|
Subject: crypto: Reduce preempt disabled regions, more algos
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Don Estabrook reported
|
Don Estabrook reported
|
||||||
| kernel: WARNING: CPU: 2 PID: 858 at kernel/sched/core.c:2428 migrate_disable+0xed/0x100()
|
| kernel: WARNING: CPU: 2 PID: 858 at kernel/sched/core.c:2428 migrate_disable+0xed/0x100()
|
||||||
|
|
|
@ -4,7 +4,7 @@ Subject: [PATCH] crypto: caam/qi - simplify CGR allocation, freeing
|
||||||
MIME-Version: 1.0
|
MIME-Version: 1.0
|
||||||
Content-Type: text/plain; charset=UTF-8
|
Content-Type: text/plain; charset=UTF-8
|
||||||
Content-Transfer-Encoding: 8bit
|
Content-Transfer-Encoding: 8bit
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
[Upstream commit 29e83c757006fd751966bdc53392bb22d74179c6]
|
[Upstream commit 29e83c757006fd751966bdc53392bb22d74179c6]
|
||||||
|
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 26 Jul 2018 18:52:00 +0200
|
Date: Thu, 26 Jul 2018 18:52:00 +0200
|
||||||
Subject: [PATCH] crypto: cryptd - add a lock instead
|
Subject: [PATCH] crypto: cryptd - add a lock instead
|
||||||
preempt_disable/local_bh_disable
|
preempt_disable/local_bh_disable
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
cryptd has a per-CPU lock which protected with local_bh_disable() and
|
cryptd has a per-CPU lock which protected with local_bh_disable() and
|
||||||
preempt_disable().
|
preempt_disable().
|
||||||
|
|
|
@ -4,7 +4,7 @@ Subject: [PATCH] crypto: limit more FPU-enabled sections
|
||||||
MIME-Version: 1.0
|
MIME-Version: 1.0
|
||||||
Content-Type: text/plain; charset=UTF-8
|
Content-Type: text/plain; charset=UTF-8
|
||||||
Content-Transfer-Encoding: 8bit
|
Content-Transfer-Encoding: 8bit
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Those crypto drivers use SSE/AVX/… for their crypto work and in order to
|
Those crypto drivers use SSE/AVX/… for their crypto work and in order to
|
||||||
do so in kernel they need to enable the "FPU" in kernel mode which
|
do so in kernel they need to enable the "FPU" in kernel mode which
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Mike Galbraith <efault@gmx.de>
|
||||||
Date: Wed, 11 Jul 2018 17:14:47 +0200
|
Date: Wed, 11 Jul 2018 17:14:47 +0200
|
||||||
Subject: [PATCH] crypto: scompress - serialize RT percpu scratch buffer
|
Subject: [PATCH] crypto: scompress - serialize RT percpu scratch buffer
|
||||||
access with a local lock
|
access with a local lock
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
| BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:974
|
| BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:974
|
||||||
| in_atomic(): 1, irqs_disabled(): 0, pid: 1401, name: cryptomgr_test
|
| in_atomic(): 1, irqs_disabled(): 0, pid: 1401, name: cryptomgr_test
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: debugobjects: Make RT aware
|
Subject: debugobjects: Make RT aware
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Sun, 17 Jul 2011 21:41:35 +0200
|
Date: Sun, 17 Jul 2011 21:41:35 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Avoid filling the pool / allocating memory with irqs off().
|
Avoid filling the pool / allocating memory with irqs off().
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Tue, 27 Mar 2018 16:24:15 +0200
|
Date: Tue, 27 Mar 2018 16:24:15 +0200
|
||||||
Subject: [PATCH] dm rq: remove BUG_ON(!irqs_disabled) check
|
Subject: [PATCH] dm rq: remove BUG_ON(!irqs_disabled) check
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
In commit 052189a2ec95 ("dm: remove superfluous irq disablement in
|
In commit 052189a2ec95 ("dm: remove superfluous irq disablement in
|
||||||
dm_request_fn") the spin_lock_irq() was replaced with spin_lock() + a
|
dm_request_fn") the spin_lock_irq() was replaced with spin_lock() + a
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
||||||
Date: Thu, 31 Mar 2016 04:08:28 +0200
|
Date: Thu, 31 Mar 2016 04:08:28 +0200
|
||||||
Subject: [PATCH] drivers/block/zram: Replace bit spinlocks with rtmutex
|
Subject: [PATCH] drivers/block/zram: Replace bit spinlocks with rtmutex
|
||||||
for -rt
|
for -rt
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
They're nondeterministic, and lead to ___might_sleep() splats in -rt.
|
They're nondeterministic, and lead to ___might_sleep() splats in -rt.
|
||||||
OTOH, they're a lot less wasteful than an rtmutex per page.
|
OTOH, they're a lot less wasteful than an rtmutex per page.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: tty/serial/omap: Make the locking RT aware
|
Subject: tty/serial/omap: Make the locking RT aware
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Thu, 28 Jul 2011 13:32:57 +0200
|
Date: Thu, 28 Jul 2011 13:32:57 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
The lock is a sleeping lock and local_irq_save() is not the
|
The lock is a sleeping lock and local_irq_save() is not the
|
||||||
optimsation we are looking for. Redo it to make it work on -RT and
|
optimsation we are looking for. Redo it to make it work on -RT and
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: tty/serial/pl011: Make the locking work on RT
|
Subject: tty/serial/pl011: Make the locking work on RT
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Tue, 08 Jan 2013 21:36:51 +0100
|
Date: Tue, 08 Jan 2013 21:36:51 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
The lock is a sleeping lock and local_irq_save() is not the optimsation
|
The lock is a sleeping lock and local_irq_save() is not the optimsation
|
||||||
we are looking for. Redo it to make it work on -RT and non-RT.
|
we are looking for. Redo it to make it work on -RT and non-RT.
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
||||||
Date: Thu, 20 Oct 2016 11:15:22 +0200
|
Date: Thu, 20 Oct 2016 11:15:22 +0200
|
||||||
Subject: [PATCH] drivers/zram: Don't disable preemption in
|
Subject: [PATCH] drivers/zram: Don't disable preemption in
|
||||||
zcomp_stream_get/put()
|
zcomp_stream_get/put()
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
In v4.7, the driver switched to percpu compression streams, disabling
|
In v4.7, the driver switched to percpu compression streams, disabling
|
||||||
preemption via get/put_cpu_ptr(). Use a per-zcomp_strm lock here. We
|
preemption via get/put_cpu_ptr(). Use a per-zcomp_strm lock here. We
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Mike Galbraith <efault@gmx.de>
|
||||||
Date: Wed, 23 Aug 2017 11:57:29 +0200
|
Date: Wed, 23 Aug 2017 11:57:29 +0200
|
||||||
Subject: [PATCH] drivers/zram: fix zcomp_stream_get() smp_processor_id() use
|
Subject: [PATCH] drivers/zram: fix zcomp_stream_get() smp_processor_id() use
|
||||||
in preemptible code
|
in preemptible code
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Use get_local_ptr() instead this_cpu_ptr() to avoid a warning regarding
|
Use get_local_ptr() instead this_cpu_ptr() to avoid a warning regarding
|
||||||
smp_processor_id() in preemptible code.
|
smp_processor_id() in preemptible code.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 6 Dec 2018 09:52:20 +0100
|
Date: Thu, 6 Dec 2018 09:52:20 +0100
|
||||||
Subject: [PATCH] drm/i915: disable tracing on -RT
|
Subject: [PATCH] drm/i915: disable tracing on -RT
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Luca Abeni reported this:
|
Luca Abeni reported this:
|
||||||
| BUG: scheduling while atomic: kworker/u8:2/15203/0x00000003
|
| BUG: scheduling while atomic: kworker/u8:2/15203/0x00000003
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Wed, 19 Dec 2018 10:47:02 +0100
|
Date: Wed, 19 Dec 2018 10:47:02 +0100
|
||||||
Subject: [PATCH] drm/i915: skip DRM_I915_LOW_LEVEL_TRACEPOINTS with NOTRACE
|
Subject: [PATCH] drm/i915: skip DRM_I915_LOW_LEVEL_TRACEPOINTS with NOTRACE
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
The order of the header files is important. If this header file is
|
The order of the header files is important. If this header file is
|
||||||
included after tracepoint.h was included then the NOTRACE here becomes a
|
included after tracepoint.h was included then the NOTRACE here becomes a
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: drm,i915: Use local_lock/unlock_irq() in intel_pipe_update_start/end()
|
Subject: drm,i915: Use local_lock/unlock_irq() in intel_pipe_update_start/end()
|
||||||
From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
||||||
Date: Sat, 27 Feb 2016 09:01:42 +0100
|
Date: Sat, 27 Feb 2016 09:01:42 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
|
|
||||||
[ 8.014039] BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:918
|
[ 8.014039] BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:918
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: drm,radeon,i915: Use preempt_disable/enable_rt() where recommended
|
Subject: drm,radeon,i915: Use preempt_disable/enable_rt() where recommended
|
||||||
From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
||||||
Date: Sat, 27 Feb 2016 08:09:11 +0100
|
Date: Sat, 27 Feb 2016 08:09:11 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
DRM folks identified the spots, so use them.
|
DRM folks identified the spots, so use them.
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 26 Jul 2018 15:06:10 +0200
|
Date: Thu, 26 Jul 2018 15:06:10 +0200
|
||||||
Subject: [PATCH] efi: Allow efi=runtime
|
Subject: [PATCH] efi: Allow efi=runtime
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
In case the option "efi=noruntime" is default at built-time, the user
|
In case the option "efi=noruntime" is default at built-time, the user
|
||||||
could overwrite its sate by `efi=runtime' and allow it again.
|
could overwrite its sate by `efi=runtime' and allow it again.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 26 Jul 2018 15:03:16 +0200
|
Date: Thu, 26 Jul 2018 15:03:16 +0200
|
||||||
Subject: [PATCH] efi: Disable runtime services on RT
|
Subject: [PATCH] efi: Disable runtime services on RT
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Based on meassurements the EFI functions get_variable /
|
Based on meassurements the EFI functions get_variable /
|
||||||
get_next_variable take up to 2us which looks okay.
|
get_next_variable take up to 2us which looks okay.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: fs/epoll: Do not disable preemption on RT
|
Subject: fs/epoll: Do not disable preemption on RT
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Fri, 08 Jul 2011 16:35:35 +0200
|
Date: Fri, 08 Jul 2011 16:35:35 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
ep_call_nested() takes a sleeping lock so we can't disable preemption.
|
ep_call_nested() takes a sleeping lock so we can't disable preemption.
|
||||||
The light version is enough since ep_call_nested() doesn't mind beeing
|
The light version is enough since ep_call_nested() doesn't mind beeing
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Mon, 16 Feb 2015 18:49:10 +0100
|
Date: Mon, 16 Feb 2015 18:49:10 +0100
|
||||||
Subject: fs/aio: simple simple work
|
Subject: fs/aio: simple simple work
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:768
|
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:768
|
||||||
|in_atomic(): 1, irqs_disabled(): 0, pid: 26, name: rcuos/2
|
|in_atomic(): 1, irqs_disabled(): 0, pid: 26, name: rcuos/2
|
||||||
|
@ -38,7 +38,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
|
|
||||||
#include <asm/kmap_types.h>
|
#include <asm/kmap_types.h>
|
||||||
#include <linux/uaccess.h>
|
#include <linux/uaccess.h>
|
||||||
@@ -120,6 +121,7 @@ struct kioctx {
|
@@ -121,6 +122,7 @@ struct kioctx {
|
||||||
long nr_pages;
|
long nr_pages;
|
||||||
|
|
||||||
struct rcu_work free_rwork; /* see free_ioctx() */
|
struct rcu_work free_rwork; /* see free_ioctx() */
|
||||||
|
@ -46,7 +46,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* signals when all in-flight requests are done
|
* signals when all in-flight requests are done
|
||||||
@@ -254,6 +256,7 @@ static int __init aio_setup(void)
|
@@ -255,6 +257,7 @@ static int __init aio_setup(void)
|
||||||
.mount = aio_mount,
|
.mount = aio_mount,
|
||||||
.kill_sb = kill_anon_super,
|
.kill_sb = kill_anon_super,
|
||||||
};
|
};
|
||||||
|
@ -54,7 +54,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
aio_mnt = kern_mount(&aio_fs);
|
aio_mnt = kern_mount(&aio_fs);
|
||||||
if (IS_ERR(aio_mnt))
|
if (IS_ERR(aio_mnt))
|
||||||
panic("Failed to create aio fs mount.");
|
panic("Failed to create aio fs mount.");
|
||||||
@@ -595,9 +598,9 @@ static void free_ioctx_reqs(struct percp
|
@@ -596,9 +599,9 @@ static void free_ioctx_reqs(struct percp
|
||||||
* and ctx->users has dropped to 0, so we know no more kiocbs can be submitted -
|
* and ctx->users has dropped to 0, so we know no more kiocbs can be submitted -
|
||||||
* now it's safe to cancel any that need to be.
|
* now it's safe to cancel any that need to be.
|
||||||
*/
|
*/
|
||||||
|
@ -66,7 +66,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
struct aio_kiocb *req;
|
struct aio_kiocb *req;
|
||||||
|
|
||||||
spin_lock_irq(&ctx->ctx_lock);
|
spin_lock_irq(&ctx->ctx_lock);
|
||||||
@@ -615,6 +618,14 @@ static void free_ioctx_users(struct perc
|
@@ -616,6 +619,14 @@ static void free_ioctx_users(struct perc
|
||||||
percpu_ref_put(&ctx->reqs);
|
percpu_ref_put(&ctx->reqs);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Wed, 13 Sep 2017 12:32:34 +0200
|
Date: Wed, 13 Sep 2017 12:32:34 +0200
|
||||||
Subject: [PATCH] fs/dcache: bring back explicit INIT_HLIST_BL_HEAD init
|
Subject: [PATCH] fs/dcache: bring back explicit INIT_HLIST_BL_HEAD init
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Commit 3d375d78593c ("mm: update callers to use HASH_ZERO flag") removed
|
Commit 3d375d78593c ("mm: update callers to use HASH_ZERO flag") removed
|
||||||
INIT_HLIST_BL_HEAD and uses the ZERO flag instead for the init. However
|
INIT_HLIST_BL_HEAD and uses the ZERO flag instead for the init. However
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Fri, 20 Oct 2017 11:29:53 +0200
|
Date: Fri, 20 Oct 2017 11:29:53 +0200
|
||||||
Subject: [PATCH] fs/dcache: disable preemption on i_dir_seq's write side
|
Subject: [PATCH] fs/dcache: disable preemption on i_dir_seq's write side
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
i_dir_seq is an opencoded seqcounter. Based on the code it looks like we
|
i_dir_seq is an opencoded seqcounter. Based on the code it looks like we
|
||||||
could have two writers in parallel despite the fact that the d_lock is
|
could have two writers in parallel despite the fact that the d_lock is
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: fs: dcache: Use cpu_chill() in trylock loops
|
Subject: fs: dcache: Use cpu_chill() in trylock loops
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Wed, 07 Mar 2012 21:00:34 +0100
|
Date: Wed, 07 Mar 2012 21:00:34 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Retry loops on RT might loop forever when the modifying side was
|
Retry loops on RT might loop forever when the modifying side was
|
||||||
preempted. Use cpu_chill() instead of cpu_relax() to let the system
|
preempted. Use cpu_chill() instead of cpu_relax() to let the system
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Wed, 14 Sep 2016 14:35:49 +0200
|
Date: Wed, 14 Sep 2016 14:35:49 +0200
|
||||||
Subject: [PATCH] fs/dcache: use swait_queue instead of waitqueue
|
Subject: [PATCH] fs/dcache: use swait_queue instead of waitqueue
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
__d_lookup_done() invokes wake_up_all() while holding a hlist_bl_lock()
|
__d_lookup_done() invokes wake_up_all() while holding a hlist_bl_lock()
|
||||||
which disables preemption. As a workaround convert it to swait.
|
which disables preemption. As a workaround convert it to swait.
|
||||||
|
@ -163,7 +163,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
goto end_instantiate;
|
goto end_instantiate;
|
||||||
--- a/fs/proc/proc_sysctl.c
|
--- a/fs/proc/proc_sysctl.c
|
||||||
+++ b/fs/proc/proc_sysctl.c
|
+++ b/fs/proc/proc_sysctl.c
|
||||||
@@ -678,7 +678,7 @@ static bool proc_sys_fill_cache(struct f
|
@@ -677,7 +677,7 @@ static bool proc_sys_fill_cache(struct f
|
||||||
|
|
||||||
child = d_lookup(dir, &qname);
|
child = d_lookup(dir, &qname);
|
||||||
if (!child) {
|
if (!child) {
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Fri, 18 Mar 2011 10:11:25 +0100
|
Date: Fri, 18 Mar 2011 10:11:25 +0100
|
||||||
Subject: fs: jbd/jbd2: Make state lock and journal head lock rt safe
|
Subject: fs: jbd/jbd2: Make state lock and journal head lock rt safe
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
bit_spin_locks break under RT.
|
bit_spin_locks break under RT.
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 15 Sep 2016 10:51:27 +0200
|
Date: Thu, 15 Sep 2016 10:51:27 +0200
|
||||||
Subject: [PATCH] fs/nfs: turn rmdir_sem into a semaphore
|
Subject: [PATCH] fs/nfs: turn rmdir_sem into a semaphore
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
The RW semaphore had a reader side which used the _non_owner version
|
The RW semaphore had a reader side which used the _non_owner version
|
||||||
because it most likely took the reader lock in one thread and released it
|
because it most likely took the reader lock in one thread and released it
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Fri, 18 Mar 2011 09:18:52 +0100
|
Date: Fri, 18 Mar 2011 09:18:52 +0100
|
||||||
Subject: buffer_head: Replace bh_uptodate_lock for -rt
|
Subject: buffer_head: Replace bh_uptodate_lock for -rt
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Wrap the bit_spin_lock calls into a separate inline and add the RT
|
Wrap the bit_spin_lock calls into a separate inline and add the RT
|
||||||
replacements with a real spinlock.
|
replacements with a real spinlock.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Clark Williams <williams@redhat.com>
|
From: Clark Williams <williams@redhat.com>
|
||||||
Date: Tue, 3 Jul 2018 13:34:30 -0500
|
Date: Tue, 3 Jul 2018 13:34:30 -0500
|
||||||
Subject: [PATCH] fscache: initialize cookie hash table raw spinlocks
|
Subject: [PATCH] fscache: initialize cookie hash table raw spinlocks
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
The fscache cookie mechanism uses a hash table of hlist_bl_head structures. The
|
The fscache cookie mechanism uses a hash table of hlist_bl_head structures. The
|
||||||
PREEMPT_RT patcheset adds a raw spinlock to this structure and so on PREEMPT_RT
|
PREEMPT_RT patcheset adds a raw spinlock to this structure and so on PREEMPT_RT
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
||||||
Date: Sun, 16 Oct 2016 05:08:30 +0200
|
Date: Sun, 16 Oct 2016 05:08:30 +0200
|
||||||
Subject: [PATCH] ftrace: Fix trace header alignment
|
Subject: [PATCH] ftrace: Fix trace header alignment
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Line up helper arrows to the right column.
|
Line up helper arrows to the right column.
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Sun, 17 Jul 2011 21:56:42 +0200
|
Date: Sun, 17 Jul 2011 21:56:42 +0200
|
||||||
Subject: trace: Add migrate-disabled counter to tracing output
|
Subject: trace: Add migrate-disabled counter to tracing output
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
---
|
---
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Fri, 1 Mar 2013 11:17:42 +0100
|
Date: Fri, 1 Mar 2013 11:17:42 +0100
|
||||||
Subject: futex: Ensure lock/unlock symetry versus pi_lock and hash bucket lock
|
Subject: futex: Ensure lock/unlock symetry versus pi_lock and hash bucket lock
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
In exit_pi_state_list() we have the following locking construct:
|
In exit_pi_state_list() we have the following locking construct:
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Steven Rostedt <rostedt@goodmis.org>
|
From: Steven Rostedt <rostedt@goodmis.org>
|
||||||
Date: Tue, 14 Jul 2015 14:26:34 +0200
|
Date: Tue, 14 Jul 2015 14:26:34 +0200
|
||||||
Subject: futex: Fix bug on when a requeued RT task times out
|
Subject: futex: Fix bug on when a requeued RT task times out
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Requeue with timeout causes a bug with PREEMPT_RT_FULL.
|
Requeue with timeout causes a bug with PREEMPT_RT_FULL.
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Wed, 8 Mar 2017 14:23:35 +0100
|
Date: Wed, 8 Mar 2017 14:23:35 +0100
|
||||||
Subject: [PATCH] futex: workaround migrate_disable/enable in different context
|
Subject: [PATCH] futex: workaround migrate_disable/enable in different context
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
migrate_disable()/migrate_enable() takes a different path in atomic() vs
|
migrate_disable()/migrate_enable() takes a different path in atomic() vs
|
||||||
!atomic() context. These little hacks ensure that we don't underflow / overflow
|
!atomic() context. These little hacks ensure that we don't underflow / overflow
|
||||||
|
@ -16,7 +16,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
|
|
||||||
--- a/kernel/futex.c
|
--- a/kernel/futex.c
|
||||||
+++ b/kernel/futex.c
|
+++ b/kernel/futex.c
|
||||||
@@ -2798,9 +2798,18 @@ static int futex_lock_pi(u32 __user *uad
|
@@ -2855,9 +2855,18 @@ static int futex_lock_pi(u32 __user *uad
|
||||||
* lock handoff sequence.
|
* lock handoff sequence.
|
||||||
*/
|
*/
|
||||||
raw_spin_lock_irq(&q.pi_state->pi_mutex.wait_lock);
|
raw_spin_lock_irq(&q.pi_state->pi_mutex.wait_lock);
|
||||||
|
@ -35,7 +35,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
|
|
||||||
if (ret) {
|
if (ret) {
|
||||||
if (ret == 1)
|
if (ret == 1)
|
||||||
@@ -2947,11 +2956,21 @@ static int futex_unlock_pi(u32 __user *u
|
@@ -3004,11 +3013,21 @@ static int futex_unlock_pi(u32 __user *u
|
||||||
* observed.
|
* observed.
|
||||||
*/
|
*/
|
||||||
raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
|
raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Ingo Molnar <mingo@elte.hu>
|
From: Ingo Molnar <mingo@elte.hu>
|
||||||
Date: Fri, 3 Jul 2009 08:29:57 -0500
|
Date: Fri, 3 Jul 2009 08:29:57 -0500
|
||||||
Subject: genirq: Disable irqpoll on -rt
|
Subject: genirq: Disable irqpoll on -rt
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Creates long latencies for no value
|
Creates long latencies for no value
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Wed, 21 Aug 2013 17:48:46 +0200
|
Date: Wed, 21 Aug 2013 17:48:46 +0200
|
||||||
Subject: genirq: Do not invoke the affinity callback via a workqueue on RT
|
Subject: genirq: Do not invoke the affinity callback via a workqueue on RT
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Joe Korty reported, that __irq_set_affinity_locked() schedules a
|
Joe Korty reported, that __irq_set_affinity_locked() schedules a
|
||||||
workqueue while holding a rawlock which results in a might_sleep()
|
workqueue while holding a rawlock which results in a might_sleep()
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: genirq: Force interrupt thread on RT
|
Subject: genirq: Force interrupt thread on RT
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Sun, 03 Apr 2011 11:57:29 +0200
|
Date: Sun, 03 Apr 2011 11:57:29 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Force threaded_irqs and optimize the code (force_irqthreads) in regard
|
Force threaded_irqs and optimize the code (force_irqthreads) in regard
|
||||||
to this.
|
to this.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Josh Cartwright <joshc@ni.com>
|
From: Josh Cartwright <joshc@ni.com>
|
||||||
Date: Thu, 11 Feb 2016 11:54:00 -0600
|
Date: Thu, 11 Feb 2016 11:54:00 -0600
|
||||||
Subject: genirq: update irq_set_irqchip_state documentation
|
Subject: genirq: update irq_set_irqchip_state documentation
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
On -rt kernels, the use of migrate_disable()/migrate_enable() is
|
On -rt kernels, the use of migrate_disable()/migrate_enable() is
|
||||||
sufficient to guarantee a task isn't moved to another CPU. Update the
|
sufficient to guarantee a task isn't moved to another CPU. Update the
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Fri, 4 Aug 2017 18:31:00 +0200
|
Date: Fri, 4 Aug 2017 18:31:00 +0200
|
||||||
Subject: [PATCH] hotplug: duct-tape RT-rwlock usage for non-RT
|
Subject: [PATCH] hotplug: duct-tape RT-rwlock usage for non-RT
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
This type is only available on -RT. We need to craft something for
|
This type is only available on -RT. We need to craft something for
|
||||||
non-RT. Since the only migrate_disable() user is -RT only, there is no
|
non-RT. Since the only migrate_disable() user is -RT only, there is no
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: hotplug: Lightweight get online cpus
|
Subject: hotplug: Lightweight get online cpus
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Wed, 15 Jun 2011 12:36:06 +0200
|
Date: Wed, 15 Jun 2011 12:36:06 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
get_online_cpus() is a heavy weight function which involves a global
|
get_online_cpus() is a heavy weight function which involves a global
|
||||||
mutex. migrate_disable() wants a simpler construct which prevents only
|
mutex. migrate_disable() wants a simpler construct which prevents only
|
||||||
|
@ -65,7 +65,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
void cpus_read_lock(void)
|
void cpus_read_lock(void)
|
||||||
--- a/kernel/sched/core.c
|
--- a/kernel/sched/core.c
|
||||||
+++ b/kernel/sched/core.c
|
+++ b/kernel/sched/core.c
|
||||||
@@ -7203,6 +7203,7 @@ void migrate_disable(void)
|
@@ -7202,6 +7202,7 @@ void migrate_disable(void)
|
||||||
}
|
}
|
||||||
|
|
||||||
preempt_disable();
|
preempt_disable();
|
||||||
|
@ -73,7 +73,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
|
|
||||||
migrate_disable_update_cpus_allowed(p);
|
migrate_disable_update_cpus_allowed(p);
|
||||||
p->migrate_disable = 1;
|
p->migrate_disable = 1;
|
||||||
@@ -7268,12 +7269,15 @@ void migrate_enable(void)
|
@@ -7267,12 +7268,15 @@ void migrate_enable(void)
|
||||||
arg.task = p;
|
arg.task = p;
|
||||||
arg.dest_cpu = dest_cpu;
|
arg.dest_cpu = dest_cpu;
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Yang Shi <yang.shi@windriver.com>
|
From: Yang Shi <yang.shi@windriver.com>
|
||||||
Date: Mon, 16 Sep 2013 14:09:19 -0700
|
Date: Mon, 16 Sep 2013 14:09:19 -0700
|
||||||
Subject: hrtimer: Move schedule_work call to helper thread
|
Subject: hrtimer: Move schedule_work call to helper thread
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
When run ltp leapsec_timer test, the following call trace is caught:
|
When run ltp leapsec_timer test, the following call trace is caught:
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Fri, 3 Jul 2009 08:44:31 -0500
|
Date: Fri, 3 Jul 2009 08:44:31 -0500
|
||||||
Subject: hrtimer: by timers by default into the softirq context
|
Subject: hrtimer: by timers by default into the softirq context
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
We can't have hrtimers callbacks running in hardirq context on RT. Therefore
|
We can't have hrtimers callbacks running in hardirq context on RT. Therefore
|
||||||
the timers are deferred to the softirq context by default.
|
the timers are deferred to the softirq context by default.
|
||||||
|
@ -81,7 +81,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
/*
|
/*
|
||||||
--- a/kernel/sched/core.c
|
--- a/kernel/sched/core.c
|
||||||
+++ b/kernel/sched/core.c
|
+++ b/kernel/sched/core.c
|
||||||
@@ -315,7 +315,7 @@ static void hrtick_rq_init(struct rq *rq
|
@@ -314,7 +314,7 @@ static void hrtick_rq_init(struct rq *rq
|
||||||
rq->hrtick_csd.info = rq;
|
rq->hrtick_csd.info = rq;
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
@ -103,7 +103,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
|
|
||||||
--- a/kernel/sched/fair.c
|
--- a/kernel/sched/fair.c
|
||||||
+++ b/kernel/sched/fair.c
|
+++ b/kernel/sched/fair.c
|
||||||
@@ -4878,9 +4878,9 @@ void init_cfs_bandwidth(struct cfs_bandw
|
@@ -4880,9 +4880,9 @@ void init_cfs_bandwidth(struct cfs_bandw
|
||||||
cfs_b->period = ns_to_ktime(default_cfs_period());
|
cfs_b->period = ns_to_ktime(default_cfs_period());
|
||||||
|
|
||||||
INIT_LIST_HEAD(&cfs_b->throttled_cfs_rq);
|
INIT_LIST_HEAD(&cfs_b->throttled_cfs_rq);
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Tue, 3 Jul 2018 11:25:41 +0200
|
Date: Tue, 3 Jul 2018 11:25:41 +0200
|
||||||
Subject: [PATCH v2] hrtimer: consolidate hrtimer_init() + hrtimer_init_sleeper() calls
|
Subject: [PATCH v2] hrtimer: consolidate hrtimer_init() + hrtimer_init_sleeper() calls
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
hrtimer_init_sleeper() calls require a prior initialisation of the
|
hrtimer_init_sleeper() calls require a prior initialisation of the
|
||||||
hrtimer object with hrtimer_init(). Lets make the initialisation of
|
hrtimer object with hrtimer_init(). Lets make the initialisation of
|
||||||
|
@ -117,7 +117,7 @@ Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
|
||||||
current->timer_slack_ns, \
|
current->timer_slack_ns, \
|
||||||
--- a/kernel/futex.c
|
--- a/kernel/futex.c
|
||||||
+++ b/kernel/futex.c
|
+++ b/kernel/futex.c
|
||||||
@@ -2624,10 +2624,9 @@ static int futex_wait(u32 __user *uaddr,
|
@@ -2681,10 +2681,9 @@ static int futex_wait(u32 __user *uaddr,
|
||||||
if (abs_time) {
|
if (abs_time) {
|
||||||
to = &timeout;
|
to = &timeout;
|
||||||
|
|
||||||
|
@ -131,7 +131,7 @@ Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
|
||||||
hrtimer_set_expires_range_ns(&to->timer, *abs_time,
|
hrtimer_set_expires_range_ns(&to->timer, *abs_time,
|
||||||
current->timer_slack_ns);
|
current->timer_slack_ns);
|
||||||
}
|
}
|
||||||
@@ -2726,9 +2725,8 @@ static int futex_lock_pi(u32 __user *uad
|
@@ -2783,9 +2782,8 @@ static int futex_lock_pi(u32 __user *uad
|
||||||
|
|
||||||
if (time) {
|
if (time) {
|
||||||
to = &timeout;
|
to = &timeout;
|
||||||
|
@ -143,7 +143,7 @@ Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
|
||||||
hrtimer_set_expires(&to->timer, *time);
|
hrtimer_set_expires(&to->timer, *time);
|
||||||
}
|
}
|
||||||
|
|
||||||
@@ -3144,10 +3142,9 @@ static int futex_wait_requeue_pi(u32 __u
|
@@ -3201,10 +3199,9 @@ static int futex_wait_requeue_pi(u32 __u
|
||||||
|
|
||||||
if (abs_time) {
|
if (abs_time) {
|
||||||
to = &timeout;
|
to = &timeout;
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 6 Dec 2018 10:15:13 +0100
|
Date: Thu, 6 Dec 2018 10:15:13 +0100
|
||||||
Subject: [PATCH] hrtimer: move state change before hrtimer_cancel in
|
Subject: [PATCH] hrtimer: move state change before hrtimer_cancel in
|
||||||
do_nanosleep()
|
do_nanosleep()
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
There is a small window between setting t->task to NULL and waking the
|
There is a small window between setting t->task to NULL and waking the
|
||||||
task up (which would set TASK_RUNNING). So the timer would fire, run and
|
task up (which would set TASK_RUNNING). So the timer would fire, run and
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Ingo Molnar <mingo@elte.hu>
|
From: Ingo Molnar <mingo@elte.hu>
|
||||||
Date: Fri, 3 Jul 2009 08:29:34 -0500
|
Date: Fri, 3 Jul 2009 08:29:34 -0500
|
||||||
Subject: hrtimers: Prepare full preemption
|
Subject: hrtimers: Prepare full preemption
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Make cancellation of a running callback in softirq context safe
|
Make cancellation of a running callback in softirq context safe
|
||||||
against preemption.
|
against preemption.
|
||||||
|
@ -174,7 +174,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
expires = timeval_to_ktime(value->it_value);
|
expires = timeval_to_ktime(value->it_value);
|
||||||
--- a/kernel/time/posix-timers.c
|
--- a/kernel/time/posix-timers.c
|
||||||
+++ b/kernel/time/posix-timers.c
|
+++ b/kernel/time/posix-timers.c
|
||||||
@@ -466,7 +466,7 @@ static struct k_itimer * alloc_posix_tim
|
@@ -463,7 +463,7 @@ static struct k_itimer * alloc_posix_tim
|
||||||
|
|
||||||
static void k_itimer_rcu_free(struct rcu_head *head)
|
static void k_itimer_rcu_free(struct rcu_head *head)
|
||||||
{
|
{
|
||||||
|
@ -183,7 +183,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
|
|
||||||
kmem_cache_free(posix_timers_cache, tmr);
|
kmem_cache_free(posix_timers_cache, tmr);
|
||||||
}
|
}
|
||||||
@@ -483,7 +483,7 @@ static void release_posix_timer(struct k
|
@@ -480,7 +480,7 @@ static void release_posix_timer(struct k
|
||||||
}
|
}
|
||||||
put_pid(tmr->it_pid);
|
put_pid(tmr->it_pid);
|
||||||
sigqueue_free(tmr->sigq);
|
sigqueue_free(tmr->sigq);
|
||||||
|
@ -192,7 +192,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
}
|
}
|
||||||
|
|
||||||
static int common_timer_create(struct k_itimer *new_timer)
|
static int common_timer_create(struct k_itimer *new_timer)
|
||||||
@@ -824,6 +824,22 @@ static void common_hrtimer_arm(struct k_
|
@@ -821,6 +821,22 @@ static void common_hrtimer_arm(struct k_
|
||||||
hrtimer_start_expires(timer, HRTIMER_MODE_ABS);
|
hrtimer_start_expires(timer, HRTIMER_MODE_ABS);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -215,7 +215,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
static int common_hrtimer_try_to_cancel(struct k_itimer *timr)
|
static int common_hrtimer_try_to_cancel(struct k_itimer *timr)
|
||||||
{
|
{
|
||||||
return hrtimer_try_to_cancel(&timr->it.real.timer);
|
return hrtimer_try_to_cancel(&timr->it.real.timer);
|
||||||
@@ -888,6 +904,7 @@ static int do_timer_settime(timer_t time
|
@@ -885,6 +901,7 @@ static int do_timer_settime(timer_t time
|
||||||
if (!timr)
|
if (!timr)
|
||||||
return -EINVAL;
|
return -EINVAL;
|
||||||
|
|
||||||
|
@ -223,7 +223,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
kc = timr->kclock;
|
kc = timr->kclock;
|
||||||
if (WARN_ON_ONCE(!kc || !kc->timer_set))
|
if (WARN_ON_ONCE(!kc || !kc->timer_set))
|
||||||
error = -EINVAL;
|
error = -EINVAL;
|
||||||
@@ -896,9 +913,12 @@ static int do_timer_settime(timer_t time
|
@@ -893,9 +910,12 @@ static int do_timer_settime(timer_t time
|
||||||
|
|
||||||
unlock_timer(timr, flag);
|
unlock_timer(timr, flag);
|
||||||
if (error == TIMER_RETRY) {
|
if (error == TIMER_RETRY) {
|
||||||
|
@ -236,7 +236,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
|
|
||||||
return error;
|
return error;
|
||||||
}
|
}
|
||||||
@@ -980,10 +1000,15 @@ SYSCALL_DEFINE1(timer_delete, timer_t, t
|
@@ -977,10 +997,15 @@ SYSCALL_DEFINE1(timer_delete, timer_t, t
|
||||||
if (!timer)
|
if (!timer)
|
||||||
return -EINVAL;
|
return -EINVAL;
|
||||||
|
|
||||||
|
@ -252,7 +252,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
||||||
|
|
||||||
spin_lock(¤t->sighand->siglock);
|
spin_lock(¤t->sighand->siglock);
|
||||||
list_del(&timer->list);
|
list_del(&timer->list);
|
||||||
@@ -1009,8 +1034,18 @@ static void itimer_delete(struct k_itime
|
@@ -1006,8 +1031,18 @@ static void itimer_delete(struct k_itime
|
||||||
retry_delete:
|
retry_delete:
|
||||||
spin_lock_irqsave(&timer->it_lock, flags);
|
spin_lock_irqsave(&timer->it_lock, flags);
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: genirq: Allow disabling of softirq processing in irq thread context
|
Subject: genirq: Allow disabling of softirq processing in irq thread context
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Tue, 31 Jan 2012 13:01:27 +0100
|
Date: Tue, 31 Jan 2012 13:01:27 +0100
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
The processing of softirqs in irq thread context is a performance gain
|
The processing of softirqs in irq thread context is a performance gain
|
||||||
for the non-rt workloads of a system, but it's counterproductive for
|
for the non-rt workloads of a system, but it's counterproductive for
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Marc Zyngier <marc.zyngier@arm.com>
|
||||||
Date: Fri, 27 Jul 2018 13:38:54 +0100
|
Date: Fri, 27 Jul 2018 13:38:54 +0100
|
||||||
Subject: [PATCH] irqchip/gic-v3-its: Move pending table allocation to init
|
Subject: [PATCH] irqchip/gic-v3-its: Move pending table allocation to init
|
||||||
time
|
time
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
|
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
|
||||||
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: irqwork: push most work into softirq context
|
Subject: irqwork: push most work into softirq context
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Tue, 23 Jun 2015 15:32:51 +0200
|
Date: Tue, 23 Jun 2015 15:32:51 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Initially we defered all irqwork into softirq because we didn't want the
|
Initially we defered all irqwork into softirq because we didn't want the
|
||||||
latency spikes if perf or another user was busy and delayed the RT task.
|
latency spikes if perf or another user was busy and delayed the RT task.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: jump-label: disable if stop_machine() is used
|
Subject: jump-label: disable if stop_machine() is used
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Wed, 08 Jul 2015 17:14:48 +0200
|
Date: Wed, 08 Jul 2015 17:14:48 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Some architectures are using stop_machine() while switching the opcode which
|
Some architectures are using stop_machine() while switching the opcode which
|
||||||
leads to latency spikes.
|
leads to latency spikes.
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: kconfig: Disable config options which are not RT compatible
|
Subject: kconfig: Disable config options which are not RT compatible
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Sun, 24 Jul 2011 12:11:43 +0200
|
Date: Sun, 24 Jul 2011 12:11:43 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Disable stuff which is known to have issues on RT
|
Disable stuff which is known to have issues on RT
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
Subject: kconfig: Add PREEMPT_RT_FULL
|
Subject: kconfig: Add PREEMPT_RT_FULL
|
||||||
From: Thomas Gleixner <tglx@linutronix.de>
|
From: Thomas Gleixner <tglx@linutronix.de>
|
||||||
Date: Wed, 29 Jun 2011 14:58:57 +0200
|
Date: Wed, 29 Jun 2011 14:58:57 +0200
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
Introduce the final symbol for PREEMPT_RT_FULL.
|
Introduce the final symbol for PREEMPT_RT_FULL.
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Thu, 19 May 2016 17:45:27 +0200
|
Date: Thu, 19 May 2016 17:45:27 +0200
|
||||||
Subject: [PATCH] kernel/printk: Don't try to print from IRQ/NMI region
|
Subject: [PATCH] kernel/printk: Don't try to print from IRQ/NMI region
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
On -RT we try to acquire sleeping locks which might lead to warnings
|
On -RT we try to acquire sleeping locks which might lead to warnings
|
||||||
from lockdep or a warn_on() from spin_try_lock() (which is a rtmutex on
|
from lockdep or a warn_on() from spin_try_lock() (which is a rtmutex on
|
||||||
|
|
|
@ -4,7 +4,7 @@ Subject: [PATCH] kernel: sched: Provide a pointer to the valid CPU mask
|
||||||
MIME-Version: 1.0
|
MIME-Version: 1.0
|
||||||
Content-Type: text/plain; charset=UTF-8
|
Content-Type: text/plain; charset=UTF-8
|
||||||
Content-Transfer-Encoding: 8bit
|
Content-Transfer-Encoding: 8bit
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
In commit 4b53a3412d66 ("sched/core: Remove the tsk_nr_cpus_allowed()
|
In commit 4b53a3412d66 ("sched/core: Remove the tsk_nr_cpus_allowed()
|
||||||
wrapper") the tsk_nr_cpus_allowed() wrapper was removed. There was not
|
wrapper") the tsk_nr_cpus_allowed() wrapper was removed. There was not
|
||||||
|
@ -305,7 +305,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
* One for us, one for whoever does the "release_task()" (usually
|
* One for us, one for whoever does the "release_task()" (usually
|
||||||
--- a/kernel/sched/core.c
|
--- a/kernel/sched/core.c
|
||||||
+++ b/kernel/sched/core.c
|
+++ b/kernel/sched/core.c
|
||||||
@@ -877,7 +877,7 @@ static inline bool is_per_cpu_kthread(st
|
@@ -876,7 +876,7 @@ static inline bool is_per_cpu_kthread(st
|
||||||
*/
|
*/
|
||||||
static inline bool is_cpu_allowed(struct task_struct *p, int cpu)
|
static inline bool is_cpu_allowed(struct task_struct *p, int cpu)
|
||||||
{
|
{
|
||||||
|
@ -314,7 +314,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
return false;
|
return false;
|
||||||
|
|
||||||
if (is_per_cpu_kthread(p))
|
if (is_per_cpu_kthread(p))
|
||||||
@@ -972,7 +972,7 @@ static int migration_cpu_stop(void *data
|
@@ -971,7 +971,7 @@ static int migration_cpu_stop(void *data
|
||||||
local_irq_disable();
|
local_irq_disable();
|
||||||
/*
|
/*
|
||||||
* We need to explicitly wake pending tasks before running
|
* We need to explicitly wake pending tasks before running
|
||||||
|
@ -323,7 +323,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
* during wakeups, see set_cpus_allowed_ptr()'s TASK_WAKING test.
|
* during wakeups, see set_cpus_allowed_ptr()'s TASK_WAKING test.
|
||||||
*/
|
*/
|
||||||
sched_ttwu_pending();
|
sched_ttwu_pending();
|
||||||
@@ -1003,7 +1003,7 @@ static int migration_cpu_stop(void *data
|
@@ -1002,7 +1002,7 @@ static int migration_cpu_stop(void *data
|
||||||
*/
|
*/
|
||||||
void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask)
|
void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask)
|
||||||
{
|
{
|
||||||
|
@ -332,7 +332,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
p->nr_cpus_allowed = cpumask_weight(new_mask);
|
p->nr_cpus_allowed = cpumask_weight(new_mask);
|
||||||
}
|
}
|
||||||
|
|
||||||
@@ -1073,7 +1073,7 @@ static int __set_cpus_allowed_ptr(struct
|
@@ -1072,7 +1072,7 @@ static int __set_cpus_allowed_ptr(struct
|
||||||
goto out;
|
goto out;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -341,7 +341,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
goto out;
|
goto out;
|
||||||
|
|
||||||
if (!cpumask_intersects(new_mask, cpu_valid_mask)) {
|
if (!cpumask_intersects(new_mask, cpu_valid_mask)) {
|
||||||
@@ -1236,10 +1236,10 @@ static int migrate_swap_stop(void *data)
|
@@ -1235,10 +1235,10 @@ static int migrate_swap_stop(void *data)
|
||||||
if (task_cpu(arg->src_task) != arg->src_cpu)
|
if (task_cpu(arg->src_task) != arg->src_cpu)
|
||||||
goto unlock;
|
goto unlock;
|
||||||
|
|
||||||
|
@ -354,7 +354,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
goto unlock;
|
goto unlock;
|
||||||
|
|
||||||
__migrate_swap_task(arg->src_task, arg->dst_cpu);
|
__migrate_swap_task(arg->src_task, arg->dst_cpu);
|
||||||
@@ -1281,10 +1281,10 @@ int migrate_swap(struct task_struct *cur
|
@@ -1280,10 +1280,10 @@ int migrate_swap(struct task_struct *cur
|
||||||
if (!cpu_active(arg.src_cpu) || !cpu_active(arg.dst_cpu))
|
if (!cpu_active(arg.src_cpu) || !cpu_active(arg.dst_cpu))
|
||||||
goto out;
|
goto out;
|
||||||
|
|
||||||
|
@ -367,7 +367,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
goto out;
|
goto out;
|
||||||
|
|
||||||
trace_sched_swap_numa(cur, arg.src_cpu, p, arg.dst_cpu);
|
trace_sched_swap_numa(cur, arg.src_cpu, p, arg.dst_cpu);
|
||||||
@@ -1429,7 +1429,7 @@ void kick_process(struct task_struct *p)
|
@@ -1428,7 +1428,7 @@ void kick_process(struct task_struct *p)
|
||||||
EXPORT_SYMBOL_GPL(kick_process);
|
EXPORT_SYMBOL_GPL(kick_process);
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -376,7 +376,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
*
|
*
|
||||||
* A few notes on cpu_active vs cpu_online:
|
* A few notes on cpu_active vs cpu_online:
|
||||||
*
|
*
|
||||||
@@ -1469,14 +1469,14 @@ static int select_fallback_rq(int cpu, s
|
@@ -1468,14 +1468,14 @@ static int select_fallback_rq(int cpu, s
|
||||||
for_each_cpu(dest_cpu, nodemask) {
|
for_each_cpu(dest_cpu, nodemask) {
|
||||||
if (!cpu_active(dest_cpu))
|
if (!cpu_active(dest_cpu))
|
||||||
continue;
|
continue;
|
||||||
|
@ -393,7 +393,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
if (!is_cpu_allowed(p, dest_cpu))
|
if (!is_cpu_allowed(p, dest_cpu))
|
||||||
continue;
|
continue;
|
||||||
|
|
||||||
@@ -1520,7 +1520,7 @@ static int select_fallback_rq(int cpu, s
|
@@ -1519,7 +1519,7 @@ static int select_fallback_rq(int cpu, s
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -402,7 +402,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
*/
|
*/
|
||||||
static inline
|
static inline
|
||||||
int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags)
|
int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags)
|
||||||
@@ -1530,11 +1530,11 @@ int select_task_rq(struct task_struct *p
|
@@ -1529,11 +1529,11 @@ int select_task_rq(struct task_struct *p
|
||||||
if (p->nr_cpus_allowed > 1)
|
if (p->nr_cpus_allowed > 1)
|
||||||
cpu = p->sched_class->select_task_rq(p, cpu, sd_flags, wake_flags);
|
cpu = p->sched_class->select_task_rq(p, cpu, sd_flags, wake_flags);
|
||||||
else
|
else
|
||||||
|
@ -416,7 +416,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
* CPU.
|
* CPU.
|
||||||
*
|
*
|
||||||
* Since this is common to all placement strategies, this lives here.
|
* Since this is common to all placement strategies, this lives here.
|
||||||
@@ -2401,7 +2401,7 @@ void wake_up_new_task(struct task_struct
|
@@ -2400,7 +2400,7 @@ void wake_up_new_task(struct task_struct
|
||||||
#ifdef CONFIG_SMP
|
#ifdef CONFIG_SMP
|
||||||
/*
|
/*
|
||||||
* Fork balancing, do it here and not earlier because:
|
* Fork balancing, do it here and not earlier because:
|
||||||
|
@ -425,7 +425,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
* - any previously selected CPU might disappear through hotplug
|
* - any previously selected CPU might disappear through hotplug
|
||||||
*
|
*
|
||||||
* Use __set_task_cpu() to avoid calling sched_class::migrate_task_rq,
|
* Use __set_task_cpu() to avoid calling sched_class::migrate_task_rq,
|
||||||
@@ -4274,7 +4274,7 @@ static int __sched_setscheduler(struct t
|
@@ -4273,7 +4273,7 @@ static int __sched_setscheduler(struct t
|
||||||
* the entire root_domain to become SCHED_DEADLINE. We
|
* the entire root_domain to become SCHED_DEADLINE. We
|
||||||
* will also fail if there's no bandwidth available.
|
* will also fail if there's no bandwidth available.
|
||||||
*/
|
*/
|
||||||
|
@ -434,7 +434,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
rq->rd->dl_bw.bw == 0) {
|
rq->rd->dl_bw.bw == 0) {
|
||||||
task_rq_unlock(rq, p, &rf);
|
task_rq_unlock(rq, p, &rf);
|
||||||
return -EPERM;
|
return -EPERM;
|
||||||
@@ -4873,7 +4873,7 @@ long sched_getaffinity(pid_t pid, struct
|
@@ -4872,7 +4872,7 @@ long sched_getaffinity(pid_t pid, struct
|
||||||
goto out_unlock;
|
goto out_unlock;
|
||||||
|
|
||||||
raw_spin_lock_irqsave(&p->pi_lock, flags);
|
raw_spin_lock_irqsave(&p->pi_lock, flags);
|
||||||
|
@ -443,7 +443,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
raw_spin_unlock_irqrestore(&p->pi_lock, flags);
|
raw_spin_unlock_irqrestore(&p->pi_lock, flags);
|
||||||
|
|
||||||
out_unlock:
|
out_unlock:
|
||||||
@@ -5453,7 +5453,7 @@ int task_can_attach(struct task_struct *
|
@@ -5452,7 +5452,7 @@ int task_can_attach(struct task_struct *
|
||||||
* allowed nodes is unnecessary. Thus, cpusets are not
|
* allowed nodes is unnecessary. Thus, cpusets are not
|
||||||
* applicable for such threads. This prevents checking for
|
* applicable for such threads. This prevents checking for
|
||||||
* success of set_cpus_allowed_ptr() on all attached tasks
|
* success of set_cpus_allowed_ptr() on all attached tasks
|
||||||
|
@ -452,7 +452,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
*/
|
*/
|
||||||
if (p->flags & PF_NO_SETAFFINITY) {
|
if (p->flags & PF_NO_SETAFFINITY) {
|
||||||
ret = -EINVAL;
|
ret = -EINVAL;
|
||||||
@@ -5480,7 +5480,7 @@ int migrate_task_to(struct task_struct *
|
@@ -5479,7 +5479,7 @@ int migrate_task_to(struct task_struct *
|
||||||
if (curr_cpu == target_cpu)
|
if (curr_cpu == target_cpu)
|
||||||
return 0;
|
return 0;
|
||||||
|
|
||||||
|
@ -461,7 +461,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
return -EINVAL;
|
return -EINVAL;
|
||||||
|
|
||||||
/* TODO: This is not properly updating schedstats */
|
/* TODO: This is not properly updating schedstats */
|
||||||
@@ -5618,7 +5618,7 @@ static void migrate_tasks(struct rq *dea
|
@@ -5617,7 +5617,7 @@ static void migrate_tasks(struct rq *dea
|
||||||
put_prev_task(rq, next);
|
put_prev_task(rq, next);
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -554,7 +554,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
continue;
|
continue;
|
||||||
|
|
||||||
env->dst_cpu = cpu;
|
env->dst_cpu = cpu;
|
||||||
@@ -5711,7 +5711,7 @@ find_idlest_group(struct sched_domain *s
|
@@ -5713,7 +5713,7 @@ find_idlest_group(struct sched_domain *s
|
||||||
|
|
||||||
/* Skip over this group if it has no CPUs allowed */
|
/* Skip over this group if it has no CPUs allowed */
|
||||||
if (!cpumask_intersects(sched_group_span(group),
|
if (!cpumask_intersects(sched_group_span(group),
|
||||||
|
@ -563,7 +563,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
continue;
|
continue;
|
||||||
|
|
||||||
local_group = cpumask_test_cpu(this_cpu,
|
local_group = cpumask_test_cpu(this_cpu,
|
||||||
@@ -5843,7 +5843,7 @@ find_idlest_group_cpu(struct sched_group
|
@@ -5845,7 +5845,7 @@ find_idlest_group_cpu(struct sched_group
|
||||||
return cpumask_first(sched_group_span(group));
|
return cpumask_first(sched_group_span(group));
|
||||||
|
|
||||||
/* Traverse only the allowed CPUs */
|
/* Traverse only the allowed CPUs */
|
||||||
|
@ -572,7 +572,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
if (available_idle_cpu(i)) {
|
if (available_idle_cpu(i)) {
|
||||||
struct rq *rq = cpu_rq(i);
|
struct rq *rq = cpu_rq(i);
|
||||||
struct cpuidle_state *idle = idle_get_state(rq);
|
struct cpuidle_state *idle = idle_get_state(rq);
|
||||||
@@ -5883,7 +5883,7 @@ static inline int find_idlest_cpu(struct
|
@@ -5885,7 +5885,7 @@ static inline int find_idlest_cpu(struct
|
||||||
{
|
{
|
||||||
int new_cpu = cpu;
|
int new_cpu = cpu;
|
||||||
|
|
||||||
|
@ -581,7 +581,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
return prev_cpu;
|
return prev_cpu;
|
||||||
|
|
||||||
/*
|
/*
|
||||||
@@ -5999,7 +5999,7 @@ static int select_idle_core(struct task_
|
@@ -6001,7 +6001,7 @@ static int select_idle_core(struct task_
|
||||||
if (!test_idle_cores(target, false))
|
if (!test_idle_cores(target, false))
|
||||||
return -1;
|
return -1;
|
||||||
|
|
||||||
|
@ -590,7 +590,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
|
|
||||||
for_each_cpu_wrap(core, cpus, target) {
|
for_each_cpu_wrap(core, cpus, target) {
|
||||||
bool idle = true;
|
bool idle = true;
|
||||||
@@ -6033,7 +6033,7 @@ static int select_idle_smt(struct task_s
|
@@ -6035,7 +6035,7 @@ static int select_idle_smt(struct task_s
|
||||||
return -1;
|
return -1;
|
||||||
|
|
||||||
for_each_cpu(cpu, cpu_smt_mask(target)) {
|
for_each_cpu(cpu, cpu_smt_mask(target)) {
|
||||||
|
@ -599,7 +599,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
continue;
|
continue;
|
||||||
if (available_idle_cpu(cpu))
|
if (available_idle_cpu(cpu))
|
||||||
return cpu;
|
return cpu;
|
||||||
@@ -6096,7 +6096,7 @@ static int select_idle_cpu(struct task_s
|
@@ -6098,7 +6098,7 @@ static int select_idle_cpu(struct task_s
|
||||||
for_each_cpu_wrap(cpu, sched_domain_span(sd), target) {
|
for_each_cpu_wrap(cpu, sched_domain_span(sd), target) {
|
||||||
if (!--nr)
|
if (!--nr)
|
||||||
return -1;
|
return -1;
|
||||||
|
@ -608,7 +608,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
continue;
|
continue;
|
||||||
if (available_idle_cpu(cpu))
|
if (available_idle_cpu(cpu))
|
||||||
break;
|
break;
|
||||||
@@ -6133,7 +6133,7 @@ static int select_idle_sibling(struct ta
|
@@ -6135,7 +6135,7 @@ static int select_idle_sibling(struct ta
|
||||||
recent_used_cpu != target &&
|
recent_used_cpu != target &&
|
||||||
cpus_share_cache(recent_used_cpu, target) &&
|
cpus_share_cache(recent_used_cpu, target) &&
|
||||||
available_idle_cpu(recent_used_cpu) &&
|
available_idle_cpu(recent_used_cpu) &&
|
||||||
|
@ -617,7 +617,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
/*
|
/*
|
||||||
* Replace recent_used_cpu with prev as it is a potential
|
* Replace recent_used_cpu with prev as it is a potential
|
||||||
* candidate for the next wake:
|
* candidate for the next wake:
|
||||||
@@ -6351,7 +6351,7 @@ select_task_rq_fair(struct task_struct *
|
@@ -6353,7 +6353,7 @@ select_task_rq_fair(struct task_struct *
|
||||||
if (sd_flag & SD_BALANCE_WAKE) {
|
if (sd_flag & SD_BALANCE_WAKE) {
|
||||||
record_wakee(p);
|
record_wakee(p);
|
||||||
want_affine = !wake_wide(p) && !wake_cap(p, cpu, prev_cpu)
|
want_affine = !wake_wide(p) && !wake_cap(p, cpu, prev_cpu)
|
||||||
|
@ -626,7 +626,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
}
|
}
|
||||||
|
|
||||||
rcu_read_lock();
|
rcu_read_lock();
|
||||||
@@ -7090,14 +7090,14 @@ int can_migrate_task(struct task_struct
|
@@ -7092,14 +7092,14 @@ int can_migrate_task(struct task_struct
|
||||||
/*
|
/*
|
||||||
* We do not migrate tasks that are:
|
* We do not migrate tasks that are:
|
||||||
* 1) throttled_lb_pair, or
|
* 1) throttled_lb_pair, or
|
||||||
|
@ -643,7 +643,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
int cpu;
|
int cpu;
|
||||||
|
|
||||||
schedstat_inc(p->se.statistics.nr_failed_migrations_affine);
|
schedstat_inc(p->se.statistics.nr_failed_migrations_affine);
|
||||||
@@ -7117,7 +7117,7 @@ int can_migrate_task(struct task_struct
|
@@ -7119,7 +7119,7 @@ int can_migrate_task(struct task_struct
|
||||||
|
|
||||||
/* Prevent to re-select dst_cpu via env's CPUs: */
|
/* Prevent to re-select dst_cpu via env's CPUs: */
|
||||||
for_each_cpu_and(cpu, env->dst_grpmask, env->cpus) {
|
for_each_cpu_and(cpu, env->dst_grpmask, env->cpus) {
|
||||||
|
@ -652,7 +652,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
env->flags |= LBF_DST_PINNED;
|
env->flags |= LBF_DST_PINNED;
|
||||||
env->new_dst_cpu = cpu;
|
env->new_dst_cpu = cpu;
|
||||||
break;
|
break;
|
||||||
@@ -7738,7 +7738,7 @@ check_cpu_capacity(struct rq *rq, struct
|
@@ -7740,7 +7740,7 @@ check_cpu_capacity(struct rq *rq, struct
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Group imbalance indicates (and tries to solve) the problem where balancing
|
* Group imbalance indicates (and tries to solve) the problem where balancing
|
||||||
|
@ -661,7 +661,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
*
|
*
|
||||||
* Imagine a situation of two groups of 4 CPUs each and 4 tasks each with a
|
* Imagine a situation of two groups of 4 CPUs each and 4 tasks each with a
|
||||||
* cpumask covering 1 CPU of the first group and 3 CPUs of the second group.
|
* cpumask covering 1 CPU of the first group and 3 CPUs of the second group.
|
||||||
@@ -8353,7 +8353,7 @@ static struct sched_group *find_busiest_
|
@@ -8355,7 +8355,7 @@ static struct sched_group *find_busiest_
|
||||||
/*
|
/*
|
||||||
* If the busiest group is imbalanced the below checks don't
|
* If the busiest group is imbalanced the below checks don't
|
||||||
* work because they assume all things are equal, which typically
|
* work because they assume all things are equal, which typically
|
||||||
|
@ -670,7 +670,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
*/
|
*/
|
||||||
if (busiest->group_type == group_imbalanced)
|
if (busiest->group_type == group_imbalanced)
|
||||||
goto force_balance;
|
goto force_balance;
|
||||||
@@ -8749,7 +8749,7 @@ static int load_balance(int this_cpu, st
|
@@ -8751,7 +8751,7 @@ static int load_balance(int this_cpu, st
|
||||||
* if the curr task on busiest CPU can't be
|
* if the curr task on busiest CPU can't be
|
||||||
* moved to this_cpu:
|
* moved to this_cpu:
|
||||||
*/
|
*/
|
||||||
|
|
|
@ -2,7 +2,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
Date: Mon, 21 Nov 2016 19:31:08 +0100
|
Date: Mon, 21 Nov 2016 19:31:08 +0100
|
||||||
Subject: [PATCH] kernel/sched: move stack + kprobe clean up to
|
Subject: [PATCH] kernel/sched: move stack + kprobe clean up to
|
||||||
__put_task_struct()
|
__put_task_struct()
|
||||||
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.10-rt8.tar.xz
|
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.13-rt10.tar.xz
|
||||||
|
|
||||||
There is no need to free the stack before the task struct (except for reasons
|
There is no need to free the stack before the task struct (except for reasons
|
||||||
mentioned in commit 68f24b08ee89 ("sched/core: Free the stack early if
|
mentioned in commit 68f24b08ee89 ("sched/core: Free the stack early if
|
||||||
|
@ -44,7 +44,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
||||||
security_task_free(tsk);
|
security_task_free(tsk);
|
||||||
--- a/kernel/sched/core.c
|
--- a/kernel/sched/core.c
|
||||||
+++ b/kernel/sched/core.c
|
+++ b/kernel/sched/core.c
|
||||||
@@ -2740,15 +2740,6 @@ static struct rq *finish_task_switch(str
|
@@ -2739,15 +2739,6 @@ static struct rq *finish_task_switch(str
|
||||||
if (prev->sched_class->task_dead)
|
if (prev->sched_class->task_dead)
|
||||||
prev->sched_class->task_dead(prev);
|
prev->sched_class->task_dead(prev);
|
||||||
|
|
||||||
|
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue