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[rt] Update to 4.19.115-rt48 

Refresh patch "pci/switchtec: Don't use completion's wait queue" which was
already done as well in previous rt patchset, due to context changes in
4.19.116 caused by 12ce9fd7fc87 ("PCI/switchtec: Fix init_completion race
condition with poll_wait()").
This commit is contained in:
Salvatore Bonaccorso 2020-04-21 22:13:52 +02:00
parent 6440db7ed1
commit 6431292225
330 changed files with 1736 additions and 2057 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
debian/changelog vendored
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@ -1798,6 +1798,7 @@ linux (4.19.117-1) UNRELEASED; urgency=medium
* [rt] Refresh "workqueue: rework" for context changes in 4.19.114
* [rt] Refresh "pci/switchtec: Don't use completion's wait queue" for
context changes in 4.19.116
* [rt] Update to 4.19.115-rt48
[ Ben Hutchings ]
* [x86] Drop "Add a SysRq option to lift kernel lockdown" (Closes: #947021)

6
debian/patches-rt/0001-ARM-at91-add-TCB-registers-definitions.patch vendored
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@ -1,8 +1,8 @@
From d831f2ac120e802a4ff642f48f6b88e543665514 Mon Sep 17 00:00:00 2001
From 119971df8e4c3a8550b9b7479e5e409dc03f07b6 Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Thu, 13 Sep 2018 13:30:18 +0200
Subject: [PATCH 001/328] ARM: at91: add TCB registers definitions
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 001/325] ARM: at91: add TCB registers definitions
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Add registers and bits definitions for the timer counter blocks found on
Atmel ARM SoCs.

6
debian/patches-rt/0002-clocksource-drivers-Add-a-new-driver-for-the-Atmel-A.patch vendored
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@ -1,9 +1,9 @@
From a8f6e3cf352d669d8b870469ab3bff8fc64c3367 Mon Sep 17 00:00:00 2001
From aba8ef8111b7a69621be5dd2358f8163dc4a2263 Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Thu, 13 Sep 2018 13:30:19 +0200
Subject: [PATCH 002/328] clocksource/drivers: Add a new driver for the Atmel
Subject: [PATCH 002/325] clocksource/drivers: Add a new driver for the Atmel
ARM TC blocks
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Add a driver for the Atmel Timer Counter Blocks. This driver provides a
clocksource and two clockevent devices.

6
debian/patches-rt/0003-clocksource-drivers-timer-atmel-tcb-add-clockevent-d.patch vendored
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@ -1,9 +1,9 @@
From f2e0ea85054574af7f632ca36991c5c1a25a7bfd Mon Sep 17 00:00:00 2001
From 8cbcac5c2b1a35f8c81134219ef264b8c9f9e9d7 Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Thu, 13 Sep 2018 13:30:20 +0200
Subject: [PATCH 003/328] clocksource/drivers: timer-atmel-tcb: add clockevent
Subject: [PATCH 003/325] clocksource/drivers: timer-atmel-tcb: add clockevent
device on separate channel
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Add an other clockevent device that uses a separate TCB channel when
available.

6
debian/patches-rt/0004-clocksource-drivers-atmel-pit-make-option-silent.patch vendored
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@ -1,8 +1,8 @@
From 23ef2fe8b6933933fb81af9decf35cfae8c14571 Mon Sep 17 00:00:00 2001
From 5e34b2461c24c7ec974e6c5f33e4431a3260b2c1 Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Thu, 13 Sep 2018 13:30:21 +0200
Subject: [PATCH 004/328] clocksource/drivers: atmel-pit: make option silent
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 004/325] clocksource/drivers: atmel-pit: make option silent
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
To conform with the other option, make the ATMEL_PIT option silent so it
can be selected from the platform

6
debian/patches-rt/0005-ARM-at91-Implement-clocksource-selection.patch vendored
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@ -1,8 +1,8 @@
From 56d1624c2b43a84717f237d3c2d58ac52cb37b33 Mon Sep 17 00:00:00 2001
From 7c8bbf08ffe494d923710239c313474054189139 Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Thu, 13 Sep 2018 13:30:22 +0200
Subject: [PATCH 005/328] ARM: at91: Implement clocksource selection
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 005/325] ARM: at91: Implement clocksource selection
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Allow selecting and unselecting the PIT clocksource driver so it doesn't
have to be compile when unused.

6
debian/patches-rt/0006-ARM-configs-at91-use-new-TCB-timer-driver.patch vendored
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@ -1,8 +1,8 @@
From 9591e618026011c31f7275edd0643d390e185e38 Mon Sep 17 00:00:00 2001
From 546eacc7d54dbf5c6b35cea154d82a1aa2611af1 Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Thu, 13 Sep 2018 13:30:23 +0200
Subject: [PATCH 006/328] ARM: configs: at91: use new TCB timer driver
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 006/325] ARM: configs: at91: use new TCB timer driver
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Unselecting ATMEL_TCLIB switches the TCB timer driver from tcb_clksrc to
timer-atmel-tcb.

6
debian/patches-rt/0007-ARM-configs-at91-unselect-PIT.patch vendored
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@ -1,8 +1,8 @@
From f58179ebd23db67a287e5267a5cbc2c1ae5d75d9 Mon Sep 17 00:00:00 2001
From 44a288d26c969a743059392f799ee270bd87e9bb Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Thu, 13 Sep 2018 13:30:24 +0200
Subject: [PATCH 007/328] ARM: configs: at91: unselect PIT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 007/325] ARM: configs: at91: unselect PIT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The PIT is not required anymore to successfully boot and may actually harm
in case preempt-rt is used because the PIT interrupt is shared.

8
debian/patches-rt/0008-irqchip-gic-v3-its-Move-pending-table-allocation-to-.patch vendored
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@ -1,9 +1,9 @@
From f5fc79f507ee8c22a6f18709552cecbada48d328 Mon Sep 17 00:00:00 2001
From d70eac98c1314f780bfe229544f829b50453ae2b Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Fri, 27 Jul 2018 13:38:54 +0100
Subject: [PATCH 008/328] irqchip/gic-v3-its: Move pending table allocation to
Subject: [PATCH 008/325] irqchip/gic-v3-its: Move pending table allocation to
init time
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
@ -13,7 +13,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
2 files changed, 53 insertions(+), 28 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index bf7b69449b43..f93b8cd5eea2 100644
index f9b73336a39e..0387399054b7 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -179,6 +179,7 @@ static DEFINE_RAW_SPINLOCK(vmovp_lock);

6
debian/patches-rt/0009-kthread-convert-worker-lock-to-raw-spinlock.patch vendored
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@ -1,8 +1,8 @@
From 89b3ba99261e5321ba2276305f817b5c0c9817ad Mon Sep 17 00:00:00 2001
From 3cf0fcd0004434877a5db97439d4b56e78837a4f Mon Sep 17 00:00:00 2001
From: Julia Cartwright <julia@ni.com>
Date: Fri, 28 Sep 2018 21:03:51 +0000
Subject: [PATCH 009/328] kthread: convert worker lock to raw spinlock
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 009/325] kthread: convert worker lock to raw spinlock
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
In order to enable the queuing of kthread work items from hardirq
context even when PREEMPT_RT_FULL is enabled, convert the worker

6
debian/patches-rt/0010-crypto-caam-qi-simplify-CGR-allocation-freeing.patch vendored
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@ -1,11 +1,11 @@
From 1e7f9f15b5cb5088ac28a0919a2fcc74bfc5f5c7 Mon Sep 17 00:00:00 2001
From 222023498c02fbc8c0143bb3237a0e0a674175e5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Horia=20Geant=C4=83?= <horia.geanta@nxp.com>
Date: Mon, 8 Oct 2018 14:09:37 +0300
Subject: [PATCH 010/328] crypto: caam/qi - simplify CGR allocation, freeing
Subject: [PATCH 010/325] crypto: caam/qi - simplify CGR allocation, freeing
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
[Upstream commit 29e83c757006fd751966bdc53392bb22d74179c6]

24
debian/patches-rt/0011-sched-fair-Robustify-CFS-bandwidth-timer-locking.patch vendored
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@ -1,8 +1,8 @@
From 2a9fed89a7bea6fbe31e717ab5f277405e20826e Mon Sep 17 00:00:00 2001
From 698e9d4aa2337745a67cdb0d0130df1851dd9a25 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Jan 2019 13:52:31 +0100
Subject: [PATCH 011/328] sched/fair: Robustify CFS-bandwidth timer locking
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 011/325] sched/fair: Robustify CFS-bandwidth timer locking
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Traditionally hrtimer callbacks were run with IRQs disabled, but with
the introduction of HRTIMER_MODE_SOFT it is possible they run from
@ -30,10 +30,10 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
1 file changed, 16 insertions(+), 14 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 7f4f4ab5bfef..0f1ba3d72336 100644
index 86ccaaf0c1bf..ded41daf0d73 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4576,7 +4576,7 @@ static u64 distribute_cfs_runtime(struct cfs_bandwidth *cfs_b, u64 remaining)
@@ -4597,7 +4597,7 @@ static u64 distribute_cfs_runtime(struct cfs_bandwidth *cfs_b, u64 remaining)
struct rq *rq = rq_of(cfs_rq);
struct rq_flags rf;
@ -42,7 +42,7 @@ index 7f4f4ab5bfef..0f1ba3d72336 100644
if (!cfs_rq_throttled(cfs_rq))
goto next;
@@ -4595,7 +4595,7 @@ static u64 distribute_cfs_runtime(struct cfs_bandwidth *cfs_b, u64 remaining)
@@ -4616,7 +4616,7 @@ static u64 distribute_cfs_runtime(struct cfs_bandwidth *cfs_b, u64 remaining)
unthrottle_cfs_rq(cfs_rq);
next:
@ -51,7 +51,7 @@ index 7f4f4ab5bfef..0f1ba3d72336 100644
if (!remaining)
break;
@@ -4611,7 +4611,7 @@ static u64 distribute_cfs_runtime(struct cfs_bandwidth *cfs_b, u64 remaining)
@@ -4632,7 +4632,7 @@ static u64 distribute_cfs_runtime(struct cfs_bandwidth *cfs_b, u64 remaining)
* period the timer is deactivated until scheduling resumes; cfs_b->idle is
* used to track this state.
*/
@ -60,7 +60,7 @@ index 7f4f4ab5bfef..0f1ba3d72336 100644
{
u64 runtime;
int throttled;
@@ -4651,10 +4651,10 @@ static int do_sched_cfs_period_timer(struct cfs_bandwidth *cfs_b, int overrun)
@@ -4672,10 +4672,10 @@ static int do_sched_cfs_period_timer(struct cfs_bandwidth *cfs_b, int overrun)
while (throttled && cfs_b->runtime > 0 && !cfs_b->distribute_running) {
runtime = cfs_b->runtime;
cfs_b->distribute_running = 1;
@ -73,7 +73,7 @@ index 7f4f4ab5bfef..0f1ba3d72336 100644
cfs_b->distribute_running = 0;
throttled = !list_empty(&cfs_b->throttled_cfs_rq);
@@ -4762,16 +4762,17 @@ static __always_inline void return_cfs_rq_runtime(struct cfs_rq *cfs_rq)
@@ -4783,16 +4783,17 @@ static __always_inline void return_cfs_rq_runtime(struct cfs_rq *cfs_rq)
static void do_sched_cfs_slack_timer(struct cfs_bandwidth *cfs_b)
{
u64 runtime = 0, slice = sched_cfs_bandwidth_slice();
@ -94,7 +94,7 @@ index 7f4f4ab5bfef..0f1ba3d72336 100644
return;
}
@@ -4781,17 +4782,17 @@ static void do_sched_cfs_slack_timer(struct cfs_bandwidth *cfs_b)
@@ -4802,17 +4803,17 @@ static void do_sched_cfs_slack_timer(struct cfs_bandwidth *cfs_b)
if (runtime)
cfs_b->distribute_running = 1;
@ -115,7 +115,7 @@ index 7f4f4ab5bfef..0f1ba3d72336 100644
}
/*
@@ -4871,11 +4872,12 @@ static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
@@ -4892,11 +4893,12 @@ static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
{
struct cfs_bandwidth *cfs_b =
container_of(timer, struct cfs_bandwidth, period_timer);
@ -129,7 +129,7 @@ index 7f4f4ab5bfef..0f1ba3d72336 100644
for (;;) {
overrun = hrtimer_forward_now(timer, cfs_b->period);
if (!overrun)
@@ -4911,11 +4913,11 @@ static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
@@ -4932,11 +4934,11 @@ static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
count = 0;
}

6
debian/patches-rt/0012-arm-Convert-arm-boot_lock-to-raw.patch vendored
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@ -1,8 +1,8 @@
From 7c89d978bdfea369853567288ced4880deddd0b1 Mon Sep 17 00:00:00 2001
From a5adb64cd4a86c6fa8bc3b35141ade2fa82d3d27 Mon Sep 17 00:00:00 2001
From: Frank Rowand <frank.rowand@am.sony.com>
Date: Mon, 19 Sep 2011 14:51:14 -0700
Subject: [PATCH 012/328] arm: Convert arm boot_lock to raw
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 012/325] arm: Convert arm boot_lock to raw
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
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.

6
debian/patches-rt/0013-x86-ioapic-Don-t-let-setaffinity-unmask-threaded-EOI.patch vendored
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@ -1,9 +1,9 @@
From 9ecaf2a8f433399cc3fabcfb9fbce9a88fe6f200 Mon Sep 17 00:00:00 2001
From 21f4cc8e461111c6918c67c907cb4a8ae8afa936 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 17 Jul 2018 18:25:31 +0200
Subject: [PATCH 013/328] x86/ioapic: Don't let setaffinity unmask threaded EOI
Subject: [PATCH 013/325] x86/ioapic: Don't let setaffinity unmask threaded EOI
interrupt too early
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
There is an issue with threaded interrupts which are marked ONESHOT
and using the fasteoi handler.

6
debian/patches-rt/0014-cgroup-use-irqsave-in-cgroup_rstat_flush_locked.patch vendored
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@ -1,8 +1,8 @@
From 759e6d7c318bbcff7507641d5a9fb6b5074b2a87 Mon Sep 17 00:00:00 2001
From d92527bb24ae4fa57d587ae040d61e04458f59ac Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 3 Jul 2018 18:19:48 +0200
Subject: [PATCH 014/328] cgroup: use irqsave in cgroup_rstat_flush_locked()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 014/325] cgroup: use irqsave in cgroup_rstat_flush_locked()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
All callers of cgroup_rstat_flush_locked() acquire cgroup_rstat_lock
either with spin_lock_irq() or spin_lock_irqsave().

6
debian/patches-rt/0015-fscache-initialize-cookie-hash-table-raw-spinlocks.patch vendored
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@ -1,8 +1,8 @@
From 934128f28dd37073d6513a37f0433df6399c7953 Mon Sep 17 00:00:00 2001
From 79bc9b1cb45fe96b437ac97ffbbb28c1f02523a9 Mon Sep 17 00:00:00 2001
From: Clark Williams <williams@redhat.com>
Date: Tue, 3 Jul 2018 13:34:30 -0500
Subject: [PATCH 015/328] fscache: initialize cookie hash table raw spinlocks
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 015/325] fscache: initialize cookie hash table raw spinlocks
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
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

6
debian/patches-rt/0016-Drivers-hv-vmbus-include-header-for-get_irq_regs.patch vendored
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@ -1,11 +1,11 @@
From 2a2f1a8c287a6b6fb14a4a1b5583e043d5897df4 Mon Sep 17 00:00:00 2001
From 19172d30b8e9f6e2c70d3170a75da4aac327cb9b Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 29 Aug 2018 21:59:04 +0200
Subject: [PATCH 016/328] Drivers: hv: vmbus: include header for get_irq_regs()
Subject: [PATCH 016/325] Drivers: hv: vmbus: include header for get_irq_regs()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
On !RT the header file get_irq_regs() gets pulled in via other header files. On
RT it does not and the build fails:

6
debian/patches-rt/0017-percpu-include-irqflags.h-for-raw_local_irq_save.patch vendored
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@ -1,8 +1,8 @@
From d487edd01d698abf2b4f3ea4e3f27897b227250c Mon Sep 17 00:00:00 2001
From ea486c7cc32c9056a03180db47f3710c7fc2052f Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 11 Oct 2018 16:39:59 +0200
Subject: [PATCH 017/328] percpu: include irqflags.h for raw_local_irq_save()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 017/325] percpu: include irqflags.h for raw_local_irq_save()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The header percpu.h header file is using raw_local_irq_save() but does
not include irqflags.h for its definition. It compiles because the

6
debian/patches-rt/0018-efi-Allow-efi-runtime.patch vendored
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@ -1,8 +1,8 @@
From 5c77a75aaa23c5fc32b5485897d0d14e66fafd37 Mon Sep 17 00:00:00 2001
From 2d27283a8f76ac017050287c1a62c14cddaf11d4 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 26 Jul 2018 15:06:10 +0200
Subject: [PATCH 018/328] efi: Allow efi=runtime
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 018/325] efi: Allow efi=runtime
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
In case the option "efi=noruntime" is default at built-time, the user
could overwrite its sate by `efi=runtime' and allow it again.

10
debian/patches-rt/0019-x86-efi-drop-task_lock-from-efi_switch_mm.patch vendored
View File

@ -1,8 +1,8 @@
From af50891c552632469b09b7b97abd197545aec804 Mon Sep 17 00:00:00 2001
From 91fec13b5fdf4dce19d23cd229ecfdafcc6f6d22 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 24 Jul 2018 14:48:55 +0200
Subject: [PATCH 019/328] x86/efi: drop task_lock() from efi_switch_mm()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 019/325] x86/efi: drop task_lock() from efi_switch_mm()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
efi_switch_mm() is a wrapper around switch_mm() which saves current's
->active_mm, sets the requests mm as ->active_mm and invokes
@ -24,10 +24,10 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 6db8f3598c80..c9ccaef8df57 100644
index 2a9a703ef4a0..f104c9f2998d 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -620,18 +620,16 @@ void __init efi_dump_pagetable(void)
@@ -617,18 +617,16 @@ void __init efi_dump_pagetable(void)
/*
* Makes the calling thread switch to/from efi_mm context. Can be used

8
debian/patches-rt/0020-arm64-KVM-compute_layout-before-altenates-are-applie.patch vendored
View File

@ -1,9 +1,9 @@
From c96c598b9bc12e2909dcec0a1bf8f4a1b846107e Mon Sep 17 00:00:00 2001
From 83b8acc7de0d3e2798ec54ba770e14b691202d69 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 26 Jul 2018 09:13:42 +0200
Subject: [PATCH 020/328] arm64: KVM: compute_layout before altenates are
Subject: [PATCH 020/325] arm64: KVM: compute_layout before altenates are
applied
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
compute_layout() is invoked as part of an alternative fixup under
stop_machine() and needs a sleeping lock as part of get_random_long().
@ -18,7 +18,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/include/asm/alternative.h b/arch/arm64/include/asm/alternative.h
index 887a8512bf10..376561351bae 100644
index 1a7ba3de7079..d011309e7ad0 100644
--- a/arch/arm64/include/asm/alternative.h
+++ b/arch/arm64/include/asm/alternative.h
@@ -35,6 +35,12 @@ void apply_alternatives_module(void *start, size_t length);

6
debian/patches-rt/0021-of-allocate-free-phandle-cache-outside-of-the-devtre.patch vendored
View File

@ -1,9 +1,9 @@
From 8779fdd5686d1f9be670c7ee5ea6dfaece9e37d8 Mon Sep 17 00:00:00 2001
From 63891871ac6a67c1bae2aa15b3a3aef0f4060b58 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 31 Aug 2018 14:16:30 +0200
Subject: [PATCH 021/328] of: allocate / free phandle cache outside of the
Subject: [PATCH 021/325] of: allocate / free phandle cache outside of the
devtree_lock
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The phandle cache code allocates memory while holding devtree_lock which
is a raw_spinlock_t. Memory allocation (and free()) is not possible on

6
debian/patches-rt/0022-mm-kasan-make-quarantine_lock-a-raw_spinlock_t.patch vendored
View File

@ -1,8 +1,8 @@
From 7841950d4460ea93ee4ddd6a400ad67cfacee592 Mon Sep 17 00:00:00 2001
From 2cc8c4e626119389ae39665998b3dede468665e6 Mon Sep 17 00:00:00 2001
From: Clark Williams <williams@redhat.com>
Date: Tue, 18 Sep 2018 10:29:31 -0500
Subject: [PATCH 022/328] mm/kasan: make quarantine_lock a raw_spinlock_t
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 022/325] mm/kasan: make quarantine_lock a raw_spinlock_t
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The static lock quarantine_lock is used in quarantine.c to protect the
quarantine queue datastructures. It is taken inside quarantine queue

6
debian/patches-rt/0023-EXP-rcu-Revert-expedited-GP-parallelization-cleverne.patch vendored
View File

@ -1,9 +1,9 @@
From c7753a6fd996fcaa0285c1c8285fde721d519a0a Mon Sep 17 00:00:00 2001
From ef814d6ef67f5228fd470d84ad33515c6a1efa57 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.ibm.com>
Date: Mon, 29 Oct 2018 11:53:01 +0100
Subject: [PATCH 023/328] EXP rcu: Revert expedited GP parallelization
Subject: [PATCH 023/325] EXP rcu: Revert expedited GP parallelization
cleverness
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
(Commit 258ba8e089db23f760139266c232f01bad73f85c from linux-rcu)

6
debian/patches-rt/0024-kmemleak-Turn-kmemleak_lock-to-raw-spinlock-on-RT.patch vendored
View File

@ -1,11 +1,11 @@
From 4b0c7eda4403c5a7146714857bd1abffd2b080f8 Mon Sep 17 00:00:00 2001
From 28341f3661c5c3dac734d973251ad13a637fb0bd Mon Sep 17 00:00:00 2001
From: He Zhe <zhe.he@windriver.com>
Date: Wed, 19 Dec 2018 16:30:57 +0100
Subject: [PATCH 024/328] kmemleak: Turn kmemleak_lock to raw spinlock on RT
Subject: [PATCH 024/325] kmemleak: Turn kmemleak_lock to raw spinlock on RT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
kmemleak_lock, as a rwlock on RT, can possibly be held in atomic context and
causes the follow BUG.

6
debian/patches-rt/0025-NFSv4-replace-seqcount_t-with-a-seqlock_t.patch vendored
View File

@ -1,8 +1,8 @@
From 7cb617c6dac1356dfe57b1c4a976ec78ead046a0 Mon Sep 17 00:00:00 2001
From 89760c7945fc386046ef15f564d7e91990f88ed8 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 28 Oct 2016 23:05:11 +0200
Subject: [PATCH 025/328] NFSv4: replace seqcount_t with a seqlock_t
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 025/325] NFSv4: replace seqcount_t with a seqlock_t
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The raw_write_seqcount_begin() in nfs4_reclaim_open_state() bugs me
because it maps to preempt_disable() in -RT which I can't have at this

38
debian/patches-rt/0026-kernel-sched-Provide-a-pointer-to-the-valid-CPU-mask.patch vendored
View File

@ -1,12 +1,12 @@
From 4906d6c574d916416e92a9de0b959c4d0ed0bc17 Mon Sep 17 00:00:00 2001
From afc9cd313faee6faecfc1ab87693f143c9206536 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 4 Apr 2017 12:50:16 +0200
Subject: [PATCH 026/328] kernel: sched: Provide a pointer to the valid CPU
Subject: [PATCH 026/325] kernel: sched: Provide a pointer to the valid CPU
mask
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
In commit 4b53a3412d66 ("sched/core: Remove the tsk_nr_cpus_allowed()
wrapper") the tsk_nr_cpus_allowed() wrapper was removed. There was not
@ -573,10 +573,10 @@ index ebec37cb3be9..4b13df38c069 100644
!dl_task(task) ||
!task_on_rq_queued(task))) {
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 0f1ba3d72336..27f9f9a785c1 100644
index ded41daf0d73..fe58e95484cf 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1678,7 +1678,7 @@ static void task_numa_compare(struct task_numa_env *env,
@@ -1691,7 +1691,7 @@ static void task_numa_compare(struct task_numa_env *env,
* be incurred if the tasks were swapped.
*/
/* Skip this swap candidate if cannot move to the source cpu */
@ -585,7 +585,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
goto unlock;
/*
@@ -1776,7 +1776,7 @@ static void task_numa_find_cpu(struct task_numa_env *env,
@@ -1789,7 +1789,7 @@ static void task_numa_find_cpu(struct task_numa_env *env,
for_each_cpu(cpu, cpumask_of_node(env->dst_nid)) {
/* Skip this CPU if the source task cannot migrate */
@ -594,7 +594,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
continue;
env->dst_cpu = cpu;
@@ -5782,7 +5782,7 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p,
@@ -5803,7 +5803,7 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p,
/* Skip over this group if it has no CPUs allowed */
if (!cpumask_intersects(sched_group_span(group),
@ -603,7 +603,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
continue;
local_group = cpumask_test_cpu(this_cpu,
@@ -5914,7 +5914,7 @@ find_idlest_group_cpu(struct sched_group *group, struct task_struct *p, int this
@@ -5935,7 +5935,7 @@ find_idlest_group_cpu(struct sched_group *group, struct task_struct *p, int this
return cpumask_first(sched_group_span(group));
/* Traverse only the allowed CPUs */
@ -612,7 +612,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
if (available_idle_cpu(i)) {
struct rq *rq = cpu_rq(i);
struct cpuidle_state *idle = idle_get_state(rq);
@@ -5954,7 +5954,7 @@ static inline int find_idlest_cpu(struct sched_domain *sd, struct task_struct *p
@@ -5975,7 +5975,7 @@ static inline int find_idlest_cpu(struct sched_domain *sd, struct task_struct *p
{
int new_cpu = cpu;
@ -621,7 +621,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
return prev_cpu;
/*
@@ -6071,7 +6071,7 @@ static int select_idle_core(struct task_struct *p, struct sched_domain *sd, int
@@ -6092,7 +6092,7 @@ static int select_idle_core(struct task_struct *p, struct sched_domain *sd, int
if (!test_idle_cores(target, false))
return -1;
@ -630,7 +630,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
for_each_cpu_wrap(core, cpus, target) {
bool idle = true;
@@ -6105,7 +6105,7 @@ static int select_idle_smt(struct task_struct *p, struct sched_domain *sd, int t
@@ -6126,7 +6126,7 @@ static int select_idle_smt(struct task_struct *p, struct sched_domain *sd, int t
return -1;
for_each_cpu(cpu, cpu_smt_mask(target)) {
@ -639,7 +639,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
continue;
if (available_idle_cpu(cpu))
return cpu;
@@ -6168,7 +6168,7 @@ static int select_idle_cpu(struct task_struct *p, struct sched_domain *sd, int t
@@ -6189,7 +6189,7 @@ static int select_idle_cpu(struct task_struct *p, struct sched_domain *sd, int t
for_each_cpu_wrap(cpu, sched_domain_span(sd), target) {
if (!--nr)
return -1;
@ -648,7 +648,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
continue;
if (available_idle_cpu(cpu))
break;
@@ -6205,7 +6205,7 @@ static int select_idle_sibling(struct task_struct *p, int prev, int target)
@@ -6226,7 +6226,7 @@ static int select_idle_sibling(struct task_struct *p, int prev, int target)
recent_used_cpu != target &&
cpus_share_cache(recent_used_cpu, target) &&
available_idle_cpu(recent_used_cpu) &&
@ -657,7 +657,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
/*
* Replace recent_used_cpu with prev as it is a potential
* candidate for the next wake:
@@ -6423,7 +6423,7 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f
@@ -6444,7 +6444,7 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f
if (sd_flag & SD_BALANCE_WAKE) {
record_wakee(p);
want_affine = !wake_wide(p) && !wake_cap(p, cpu, prev_cpu)
@ -666,7 +666,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
}
rcu_read_lock();
@@ -7162,14 +7162,14 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
@@ -7183,14 +7183,14 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
/*
* We do not migrate tasks that are:
* 1) throttled_lb_pair, or
@ -683,7 +683,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
int cpu;
schedstat_inc(p->se.statistics.nr_failed_migrations_affine);
@@ -7189,7 +7189,7 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
@@ -7210,7 +7210,7 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
/* Prevent to re-select dst_cpu via env's CPUs: */
for_each_cpu_and(cpu, env->dst_grpmask, env->cpus) {
@ -692,7 +692,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
env->flags |= LBF_DST_PINNED;
env->new_dst_cpu = cpu;
break;
@@ -7786,7 +7786,7 @@ check_cpu_capacity(struct rq *rq, struct sched_domain *sd)
@@ -7827,7 +7827,7 @@ check_cpu_capacity(struct rq *rq, struct sched_domain *sd)
/*
* Group imbalance indicates (and tries to solve) the problem where balancing
@ -701,7 +701,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
*
* 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.
@@ -8401,7 +8401,7 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
@@ -8442,7 +8442,7 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
/*
* If the busiest group is imbalanced the below checks don't
* work because they assume all things are equal, which typically
@ -710,7 +710,7 @@ index 0f1ba3d72336..27f9f9a785c1 100644
*/
if (busiest->group_type == group_imbalanced)
goto force_balance;
@@ -8797,7 +8797,7 @@ static int load_balance(int this_cpu, struct rq *this_rq,
@@ -8838,7 +8838,7 @@ static int load_balance(int this_cpu, struct rq *this_rq,
* if the curr task on busiest CPU can't be
* moved to this_cpu:
*/

6
debian/patches-rt/0027-kernel-sched-core-add-migrate_disable.patch vendored
View File

@ -1,8 +1,8 @@
From 9f9cd889fa22fc1e25802f565f7210b271d136a2 Mon Sep 17 00:00:00 2001
From 8ad94df28becac218184cd246b017a0141a46247 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat, 27 May 2017 19:02:06 +0200
Subject: [PATCH 027/328] kernel/sched/core: add migrate_disable()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 027/325] kernel/sched/core: add migrate_disable()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
---
include/linux/preempt.h | 23 +++++++

6
debian/patches-rt/0028-sched-migrate_disable-Add-export_symbol_gpl-for-__mi.patch vendored
View File

@ -1,9 +1,9 @@
From db2220843fd1c19c7b89db5f6e20382b5622fa05 Mon Sep 17 00:00:00 2001
From 8a5a5668c864f35ac4028c8c775918b8bd4fca1c Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 9 Oct 2018 17:34:50 +0200
Subject: [PATCH 028/328] sched/migrate_disable: Add export_symbol_gpl for
Subject: [PATCH 028/325] sched/migrate_disable: Add export_symbol_gpl for
__migrate_disabled
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Jonathan reported that lttng/modules can't use __migrate_disabled().
This function is only used by sched/core itself and the tracing

6
debian/patches-rt/0029-arm-at91-do-not-disable-enable-clocks-in-a-row.patch vendored
View File

@ -1,8 +1,8 @@
From b978b0a313d26ed5e51a9120c8744385a99e541a Mon Sep 17 00:00:00 2001
From 097c224348ebf8f796c6f6cd0c2eacf0b63a347b Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 9 Mar 2016 10:51:06 +0100
Subject: [PATCH 029/328] arm: at91: do not disable/enable clocks in a row
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 029/325] arm: at91: do not disable/enable clocks in a row
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Currently the driver will disable the clock and enable it one line later
if it is switching from periodic mode into one shot.

6
debian/patches-rt/0030-clocksource-TCLIB-Allow-higher-clock-rates-for-clock.patch vendored
View File

@ -1,12 +1,12 @@
From 8549d4577f0573dddbc34e310c4310920a6bb714 Mon Sep 17 00:00:00 2001
From b5661f6c782e92843b5e1d081ab704dd3fb79a61 Mon Sep 17 00:00:00 2001
From: Benedikt Spranger <b.spranger@linutronix.de>
Date: Mon, 8 Mar 2010 18:57:04 +0100
Subject: [PATCH 030/328] clocksource: TCLIB: Allow higher clock rates for
Subject: [PATCH 030/325] clocksource: TCLIB: Allow higher clock rates for
clock events
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
As default the TCLIB uses the 32KiHz base clock rate for clock events.
Add a compile time selection to allow higher clock resulution.

6
debian/patches-rt/0031-timekeeping-Split-jiffies-seqlock.patch vendored
View File

@ -1,8 +1,8 @@
From 4948d026b217faebc43bfe4a21cb3c5e781508ad Mon Sep 17 00:00:00 2001
From 22522352d905d453f9bdc5271ca567d5fafdad16 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 14 Feb 2013 22:36:59 +0100
Subject: [PATCH 031/328] timekeeping: Split jiffies seqlock
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 031/325] timekeeping: Split jiffies seqlock
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Replace jiffies_lock seqlock with a simple seqcounter and a rawlock so
it can be taken in atomic context on RT.

10
debian/patches-rt/0032-signal-Revert-ptrace-preempt-magic.patch vendored
View File

@ -1,8 +1,8 @@
From dad624b7531ae0a0275cab3c82ea0d7c6a29cc7c Mon Sep 17 00:00:00 2001
From 4e6ea3956be0848c8a5771c159c7fe513e2dd745 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 21 Sep 2011 19:57:12 +0200
Subject: [PATCH 032/328] signal: Revert ptrace preempt magic
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 032/325] signal: Revert ptrace preempt magic
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Upstream commit '53da1d9456fe7f8 fix ptrace slowness' is nothing more
than a bandaid around the ptrace design trainwreck. It's not a
@ -14,10 +14,10 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
1 file changed, 8 deletions(-)
diff --git a/kernel/signal.c b/kernel/signal.c
index 08911bb6fe9a..5e278f1540ad 100644
index c42eaf39b572..feeae7177ee1 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2103,15 +2103,7 @@ static void ptrace_stop(int exit_code, int why, int clear_code, siginfo_t *info)
@@ -2108,15 +2108,7 @@ static void ptrace_stop(int exit_code, int why, int clear_code, siginfo_t *info)
if (gstop_done && ptrace_reparented(current))
do_notify_parent_cldstop(current, false, why);

6
debian/patches-rt/0033-net-sched-Use-msleep-instead-of-yield.patch vendored
View File

@ -1,8 +1,8 @@
From 5b974aebb7a0797ecc4c47dda6158e8c6788d50b Mon Sep 17 00:00:00 2001
From 8eed50e0a7fd1ea99c11d47421ca4ea0266c829f Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Wed, 5 Mar 2014 00:49:47 +0100
Subject: [PATCH 033/328] net: sched: Use msleep() instead of yield()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 033/325] net: sched: Use msleep() instead of yield()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
On PREEMPT_RT enabled systems the interrupt handler run as threads at prio 50
(by default). If a high priority userspace process tries to shut down a busy

6
debian/patches-rt/0034-dm-rq-remove-BUG_ON-irqs_disabled-check.patch vendored
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@ -1,8 +1,8 @@
From 38dbd44808bcdd34f0b973698b0f9bd65d2f2db5 Mon Sep 17 00:00:00 2001
From fada05aa298813af2111a2118e1c1af72332e628 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 27 Mar 2018 16:24:15 +0200
Subject: [PATCH 034/328] dm rq: remove BUG_ON(!irqs_disabled) check
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 034/325] dm rq: remove BUG_ON(!irqs_disabled) check
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
In commit 052189a2ec95 ("dm: remove superfluous irq disablement in
dm_request_fn") the spin_lock_irq() was replaced with spin_lock() + a

6
debian/patches-rt/0035-usb-do-no-disable-interrupts-in-giveback.patch vendored
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@ -1,8 +1,8 @@
From f31d5f36bfd80c261ba37fe3b8849f2be819c088 Mon Sep 17 00:00:00 2001
From 1e7b0ed8d23d5a93afc426a2701805787cb7459a Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 8 Nov 2013 17:34:54 +0100
Subject: [PATCH 035/328] usb: do no disable interrupts in giveback
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 035/325] usb: do no disable interrupts in giveback
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Since commit 94dfd7ed ("USB: HCD: support giveback of URB in tasklet
context") the USB code disables interrupts before invoking the complete

6
debian/patches-rt/0036-rt-Provide-PREEMPT_RT_BASE-config-switch.patch vendored
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@ -1,8 +1,8 @@
From f93f63735dec865d4013677969324e66da7f02c4 Mon Sep 17 00:00:00 2001
From ac2295358559dac261e20522d82cc3896bd63e97 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 17 Jun 2011 12:39:57 +0200
Subject: [PATCH 036/328] rt: Provide PREEMPT_RT_BASE config switch
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 036/325] rt: Provide PREEMPT_RT_BASE config switch
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Introduce PREEMPT_RT_BASE which enables parts of
PREEMPT_RT_FULL. Forces interrupt threading and enables some of the RT

6
debian/patches-rt/0037-cpumask-Disable-CONFIG_CPUMASK_OFFSTACK-for-RT.patch vendored
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@ -1,8 +1,8 @@
From 824fc9b2ae92b317da3e2a42406a49f330e20a6d Mon Sep 17 00:00:00 2001
From 267b99f0dfc2274075fc4d4652995fe24311f05b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 14 Dec 2011 01:03:49 +0100
Subject: [PATCH 037/328] cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 037/325] cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
There are "valid" GFP_ATOMIC allocations such as

6
debian/patches-rt/0038-jump-label-disable-if-stop_machine-is-used.patch vendored
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@ -1,8 +1,8 @@
From feb8e4e9bfee1c054ec0c83ae2a12897d85da9b3 Mon Sep 17 00:00:00 2001
From d6d2f824df497fe197e5d2bc268eb4e086935778 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 8 Jul 2015 17:14:48 +0200
Subject: [PATCH 038/328] jump-label: disable if stop_machine() is used
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 038/325] jump-label: disable if stop_machine() is used
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Some architectures are using stop_machine() while switching the opcode which
leads to latency spikes.

6
debian/patches-rt/0039-kconfig-Disable-config-options-which-are-not-RT-comp.patch vendored
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@ -1,9 +1,9 @@
From 521872fd8b19b111a7001f6388912ab9d506f741 Mon Sep 17 00:00:00 2001
From b922a824955d554c93823ba2547095def5b87842 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 24 Jul 2011 12:11:43 +0200
Subject: [PATCH 039/328] kconfig: Disable config options which are not RT
Subject: [PATCH 039/325] kconfig: Disable config options which are not RT
compatible
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Disable stuff which is known to have issues on RT

6
debian/patches-rt/0040-lockdep-disable-self-test.patch vendored
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@ -1,11 +1,11 @@
From 464fd34dd6dc53c357221cff371377ca19601e14 Mon Sep 17 00:00:00 2001
From d503eb089b47efb99b62cfd52744ae0e8522ba67 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 17 Oct 2017 16:36:18 +0200
Subject: [PATCH 040/328] lockdep: disable self-test
Subject: [PATCH 040/325] lockdep: disable self-test
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The self-test wasn't always 100% accurate for RT. We disabled a few
tests which failed because they had a different semantic for RT. Some

6
debian/patches-rt/0041-mm-Allow-only-slub-on-RT.patch vendored
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@ -1,8 +1,8 @@
From bb8c948b260e99e7c7ad2dc38ea03a958be18769 Mon Sep 17 00:00:00 2001
From bf1579f9280b4c92ce6b02c3f014d40eff596b86 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 3 Jul 2009 08:44:03 -0500
Subject: [PATCH 041/328] mm: Allow only slub on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 041/325] mm: Allow only slub on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Disable SLAB and SLOB on -RT. Only SLUB is adopted to -RT needs.

6
debian/patches-rt/0042-locking-Disable-spin-on-owner-for-RT.patch vendored
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@ -1,11 +1,11 @@
From 6bbedb933d43f1bc2283d96523412298d765b8a2 Mon Sep 17 00:00:00 2001
From f90c261f0738ea136c59392132ba130bad2c03b4 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 17 Jul 2011 21:51:45 +0200
Subject: [PATCH 042/328] locking: Disable spin on owner for RT
Subject: [PATCH 042/325] locking: Disable spin on owner for RT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Drop spin on owner for mutex / rwsem. We are most likely not using it
but…

6
debian/patches-rt/0043-rcu-Disable-RCU_FAST_NO_HZ-on-RT.patch vendored
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@ -1,8 +1,8 @@
From 0942d8d1880802a3a19df4dfdff1ec5769d92fe3 Mon Sep 17 00:00:00 2001
From df00a54df3c3cf8857d0f2836e313a11d3c38180 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 28 Oct 2012 13:26:09 +0000
Subject: [PATCH 043/328] rcu: Disable RCU_FAST_NO_HZ on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 043/325] rcu: Disable RCU_FAST_NO_HZ on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
This uses a timer_list timer from the irq disabled guts of the idle
code. Disable it for now to prevent wreckage.

6
debian/patches-rt/0044-rcu-make-RCU_BOOST-default-on-RT.patch vendored
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@ -1,8 +1,8 @@
From b784c987142020d5cc32de03823004d362b390ec Mon Sep 17 00:00:00 2001
From 1b6c39d11d3f8f75251ccbaa4dbbf2db13892023 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 21 Mar 2014 20:19:05 +0100
Subject: [PATCH 044/328] rcu: make RCU_BOOST default on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 044/325] rcu: make RCU_BOOST default on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Since it is no longer invoked from the softirq people run into OOM more
often if the priority of the RCU thread is too low. Making boosting

6
debian/patches-rt/0045-sched-Disable-CONFIG_RT_GROUP_SCHED-on-RT.patch vendored
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@ -1,8 +1,8 @@
From 648e8c04474df9ed71c649af1d1e5a161cddaf41 Mon Sep 17 00:00:00 2001
From f9726e45c479872aa7380cd7f5190cebcac02c70 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 18 Jul 2011 17:03:52 +0200
Subject: [PATCH 045/328] sched: Disable CONFIG_RT_GROUP_SCHED on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 045/325] sched: Disable CONFIG_RT_GROUP_SCHED on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Carsten reported problems when running:

6
debian/patches-rt/0046-net-core-disable-NET_RX_BUSY_POLL.patch vendored
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@ -1,11 +1,11 @@
From 0b90609a04c39529c4ff712a4786aecde55a0733 Mon Sep 17 00:00:00 2001
From 996a1b580a6cc76c1463f9f69662448d34ebb398 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat, 27 May 2017 19:02:06 +0200
Subject: [PATCH 046/328] net/core: disable NET_RX_BUSY_POLL
Subject: [PATCH 046/325] net/core: disable NET_RX_BUSY_POLL
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
sk_busy_loop() does preempt_disable() followed by a few operations which can
take sleeping locks and may get long.

6
debian/patches-rt/0047-arm-disable-NEON-in-kernel-mode.patch vendored
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@ -1,8 +1,8 @@
From af731f1e8edb7e93c5977a0da70bd61c5d9fa7b1 Mon Sep 17 00:00:00 2001
From fe0a55f724947832043b3e9dce548b136de75da7 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 1 Dec 2017 10:42:03 +0100
Subject: [PATCH 047/328] arm*: disable NEON in kernel mode
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 047/325] arm*: disable NEON in kernel mode
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
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

6
debian/patches-rt/0048-powerpc-Use-generic-rwsem-on-RT.patch vendored
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@ -1,8 +1,8 @@
From c90bc1f0bbce77f2baf2b4213125fb5b7870fc20 Mon Sep 17 00:00:00 2001
From f66e42e47b6d784455711d775e0e896078112788 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 14 Jul 2015 14:26:34 +0200
Subject: [PATCH 048/328] powerpc: Use generic rwsem on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 048/325] powerpc: Use generic rwsem on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Use generic code which uses rtmutex

6
debian/patches-rt/0049-powerpc-kvm-Disable-in-kernel-MPIC-emulation-for-PRE.patch vendored
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@ -1,9 +1,9 @@
From 3460880af8146f0e3e05acd590e7e52d450bbf80 Mon Sep 17 00:00:00 2001
From a0922c5ef203ce1bf241a3189fd9bf2475f7871e Mon Sep 17 00:00:00 2001
From: Bogdan Purcareata <bogdan.purcareata@freescale.com>
Date: Fri, 24 Apr 2015 15:53:13 +0000
Subject: [PATCH 049/328] powerpc/kvm: Disable in-kernel MPIC emulation for
Subject: [PATCH 049/325] powerpc/kvm: Disable in-kernel MPIC emulation for
PREEMPT_RT_FULL
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
While converting the openpic emulation code to use a raw_spinlock_t enables
guests to run on RT, there's still a performance issue. For interrupts sent in

6
debian/patches-rt/0050-powerpc-Disable-highmem-on-RT.patch vendored
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@ -1,8 +1,8 @@
From 13e6a60aad3edc7b4efd2168abcca0447ff20763 Mon Sep 17 00:00:00 2001
From 05259869f3f330c74c6647e1bcceda4f6a17996d Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 18 Jul 2011 17:08:34 +0200
Subject: [PATCH 050/328] powerpc: Disable highmem on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 050/325] powerpc: Disable highmem on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The current highmem handling on -RT is not compatible and needs fixups.

6
debian/patches-rt/0051-mips-Disable-highmem-on-RT.patch vendored
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@ -1,8 +1,8 @@
From 55ff21a4418f35a443f2c210779a9ff4dee33e93 Mon Sep 17 00:00:00 2001
From 2724f222d99a9ed81df4fa565d6cf82d34259d69 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 18 Jul 2011 17:10:12 +0200
Subject: [PATCH 051/328] mips: Disable highmem on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 051/325] mips: Disable highmem on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The current highmem handling on -RT is not compatible and needs fixups.

6
debian/patches-rt/0052-x86-Use-generic-rwsem_spinlocks-on-rt.patch vendored
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@ -1,8 +1,8 @@
From d0b5d43931b3de89c64c8a697256eb60eb9c0ebb Mon Sep 17 00:00:00 2001
From 78bb51d4c679626974498c8ae3af2866d451c48b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 26 Jul 2009 02:21:32 +0200
Subject: [PATCH 052/328] x86: Use generic rwsem_spinlocks on -rt
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 052/325] x86: Use generic rwsem_spinlocks on -rt
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Simplifies the separation of anon_rw_semaphores and rw_semaphores for
-rt.

6
debian/patches-rt/0053-leds-trigger-disable-CPU-trigger-on-RT.patch vendored
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@ -1,8 +1,8 @@
From 9c164cac4dbebd9bf5376428113db97b366625a0 Mon Sep 17 00:00:00 2001
From 88db50cf7dd13e56c63f264a6bb3763f59ed0795 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 23 Jan 2014 14:45:59 +0100
Subject: [PATCH 053/328] leds: trigger: disable CPU trigger on -RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 053/325] leds: trigger: disable CPU trigger on -RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
as it triggers:
|CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.8-rt10 #141

6
debian/patches-rt/0054-cpufreq-drop-K8-s-driver-from-beeing-selected.patch vendored
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@ -1,8 +1,8 @@
From fa67192faa15cd98f554bcf82f0ecc40a26d9165 Mon Sep 17 00:00:00 2001
From d8c10b642fecafbf8fdcc70eb887ac2b1b2010de Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 9 Apr 2015 15:23:01 +0200
Subject: [PATCH 054/328] cpufreq: drop K8's driver from beeing selected
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 054/325] cpufreq: drop K8's driver from beeing selected
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Ralf posted a picture of a backtrace from

6
debian/patches-rt/0055-md-disable-bcache.patch vendored
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@ -1,11 +1,11 @@
From 274246f0cc33aabdc562929c114eae24541eb9a3 Mon Sep 17 00:00:00 2001
From 248d9794b36b5701308e7a624204d116f681240f Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 29 Aug 2013 11:48:57 +0200
Subject: [PATCH 055/328] md: disable bcache
Subject: [PATCH 055/325] md: disable bcache
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
It uses anon semaphores
|drivers/md/bcache/request.c: In function ‘cached_dev_write_complete’:

6
debian/patches-rt/0056-efi-Disable-runtime-services-on-RT.patch vendored
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@ -1,8 +1,8 @@
From b453602d0f02b94edf714d46e6293b037ea94b67 Mon Sep 17 00:00:00 2001
From 1bfed58b8d4d1812c80dbd9d096d5e1e011ca0fc Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 26 Jul 2018 15:03:16 +0200
Subject: [PATCH 056/328] efi: Disable runtime services on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 056/325] efi: Disable runtime services on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Based on meassurements the EFI functions get_variable /
get_next_variable take up to 2us which looks okay.

6
debian/patches-rt/0057-printk-Add-a-printk-kill-switch.patch vendored
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@ -1,8 +1,8 @@
From dc16c6a47edf44cb0f69ff6124d6a85ee6dd3dcc Mon Sep 17 00:00:00 2001
From b19916a6a05bf459669c0666d128f744d601c728 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 22 Jul 2011 17:58:40 +0200
Subject: [PATCH 057/328] printk: Add a printk kill switch
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 057/325] printk: Add a printk kill switch
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Add a prinkt-kill-switch. This is used from (NMI) watchdog to ensure that
it does not dead-lock with the early printk code.

6
debian/patches-rt/0058-printk-Add-force_early_printk-boot-param-to-help-wit.patch vendored
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@ -1,9 +1,9 @@
From bfe8e0affbc2a1d3f23e9aec43198b31d1115f3d Mon Sep 17 00:00:00 2001
From 435cedf56c779ff8b0aff154014fac752d0cfc53 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 2 Sep 2011 14:41:29 +0200
Subject: [PATCH 058/328] printk: Add "force_early_printk" boot param to help
Subject: [PATCH 058/325] printk: Add "force_early_printk" boot param to help
with debugging
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Gives me an option to screw printk and actually see what the machine
says.

6
debian/patches-rt/0059-preempt-Provide-preempt_-_-no-rt-variants.patch vendored
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@ -1,8 +1,8 @@
From f3b0b7d6dafcddd6bed43f78535a5494b0e09aa8 Mon Sep 17 00:00:00 2001
From 0f4ab1168734c622efbc4fd6b4def90ab992be6b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 24 Jul 2009 12:38:56 +0200
Subject: [PATCH 059/328] preempt: Provide preempt_*_(no)rt variants
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 059/325] preempt: Provide preempt_*_(no)rt variants
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
RT needs a few preempt_disable/enable points which are not necessary
otherwise. Implement variants to avoid #ifdeffery.

14
debian/patches-rt/0060-futex-workaround-migrate_disable-enable-in-different.patch vendored
View File

@ -1,9 +1,9 @@
From a2a505f1e5d127a2c3b1ee184d27d0f402dcdf63 Mon Sep 17 00:00:00 2001
From f9c934a2065deec2a867e69c90d82e5f01a0031a Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 8 Mar 2017 14:23:35 +0100
Subject: [PATCH 060/328] futex: workaround migrate_disable/enable in different
Subject: [PATCH 060/325] futex: workaround migrate_disable/enable in different
context
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
migrate_disable()/migrate_enable() takes a different path in atomic() vs
!atomic() context. These little hacks ensure that we don't underflow / overflow
@ -17,10 +17,10 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
1 file changed, 19 insertions(+)
diff --git a/kernel/futex.c b/kernel/futex.c
index e75ad30aa7bc..5c8053098fc8 100644
index 920d853a8e9e..32f9e3fa8c46 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2879,6 +2879,14 @@ static int futex_lock_pi(u32 __user *uaddr, unsigned int flags,
@@ -2896,6 +2896,14 @@ static int futex_lock_pi(u32 __user *uaddr, unsigned int flags,
* before __rt_mutex_start_proxy_lock() is done.
*/
raw_spin_lock_irq(&q.pi_state->pi_mutex.wait_lock);
@ -35,7 +35,7 @@ index e75ad30aa7bc..5c8053098fc8 100644
spin_unlock(q.lock_ptr);
/*
* __rt_mutex_start_proxy_lock() unconditionally enqueues the @rt_waiter
@@ -2887,6 +2895,7 @@ static int futex_lock_pi(u32 __user *uaddr, unsigned int flags,
@@ -2904,6 +2912,7 @@ static int futex_lock_pi(u32 __user *uaddr, unsigned int flags,
*/
ret = __rt_mutex_start_proxy_lock(&q.pi_state->pi_mutex, &rt_waiter, current);
raw_spin_unlock_irq(&q.pi_state->pi_mutex.wait_lock);
@ -43,7 +43,7 @@ index e75ad30aa7bc..5c8053098fc8 100644
if (ret) {
if (ret == 1)
@@ -3035,11 +3044,21 @@ static int futex_unlock_pi(u32 __user *uaddr, unsigned int flags)
@@ -3052,11 +3061,21 @@ static int futex_unlock_pi(u32 __user *uaddr, unsigned int flags)
* rt_waiter. Also see the WARN in wake_futex_pi().
*/
raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);

6
debian/patches-rt/0061-rt-Add-local-irq-locks.patch vendored
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@ -1,8 +1,8 @@
From 4db63a0605ac780bf1525c6a90667aef3f897dc1 Mon Sep 17 00:00:00 2001
From e14e89e35c111f053cf74355bdc468577cdddf32 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 20 Jun 2011 09:03:47 +0200
Subject: [PATCH 061/328] rt: Add local irq locks
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 061/325] rt: Add local irq locks
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Introduce locallock. For !RT this maps to preempt_disable()/
local_irq_disable() so there is not much that changes. For RT this will

6
debian/patches-rt/0062-locallock-provide-get-put-_locked_ptr-variants.patch vendored
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@ -1,8 +1,8 @@
From 0e057064ed654b5f7fa22cc5f159ed67eeb332dc Mon Sep 17 00:00:00 2001
From 0dc8625af525103cb6b43e7f73288315aa9182c2 Mon Sep 17 00:00:00 2001
From: Julia Cartwright <julia@ni.com>
Date: Mon, 7 May 2018 08:58:56 -0500
Subject: [PATCH 062/328] locallock: provide {get,put}_locked_ptr() variants
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 062/325] locallock: provide {get,put}_locked_ptr() variants
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Provide a set of locallocked accessors for pointers to per-CPU data;
this is useful for dynamically-allocated per-CPU regions, for example.

6
debian/patches-rt/0063-mm-scatterlist-Do-not-disable-irqs-on-RT.patch vendored
View File

@ -1,8 +1,8 @@
From a132d9a98679bcc505c36c80270ddaa741c15cbc Mon Sep 17 00:00:00 2001
From 9977834321f77cd9919949417d7aff598ed71023 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 3 Jul 2009 08:44:34 -0500
Subject: [PATCH 063/328] mm/scatterlist: Do not disable irqs on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 063/325] mm/scatterlist: Do not disable irqs on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
For -RT it is enough to keep pagefault disabled (which is currently handled by
kmap_atomic()).

12
debian/patches-rt/0064-signal-x86-Delay-calling-signals-in-atomic.patch vendored
View File

@ -1,8 +1,8 @@
From f95acea987d23816f8094d7db13ae2afb94136ce Mon Sep 17 00:00:00 2001
From f2ef7528019291f9ad8d4cf90b57d315f8accd38 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 14 Jul 2015 14:26:34 +0200
Subject: [PATCH 064/328] signal/x86: Delay calling signals in atomic
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 064/325] signal/x86: Delay calling signals in atomic
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
On x86_64 we must disable preemption before we enable interrupts
for stack faults, int3 and debugging, because the current task is using
@ -95,10 +95,10 @@ index 0489d3e0e78c..e4af260f81c5 100644
size_t sas_ss_size;
unsigned int sas_ss_flags;
diff --git a/kernel/signal.c b/kernel/signal.c
index 5e278f1540ad..d5e764bb2444 100644
index feeae7177ee1..d1fa3c405784 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1277,8 +1277,8 @@ int do_send_sig_info(int sig, struct siginfo *info, struct task_struct *p,
@@ -1282,8 +1282,8 @@ int do_send_sig_info(int sig, struct siginfo *info, struct task_struct *p,
* We don't want to have recursive SIGSEGV's etc, for example,
* that is why we also clear SIGNAL_UNKILLABLE.
*/
@ -109,7 +109,7 @@ index 5e278f1540ad..d5e764bb2444 100644
{
unsigned long int flags;
int ret, blocked, ignored;
@@ -1307,6 +1307,39 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
@@ -1312,6 +1312,39 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
return ret;
}

6
debian/patches-rt/0065-x86-signal-delay-calling-signals-on-32bit.patch vendored
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@ -1,8 +1,8 @@
From 44575d6c7e6fb548a6bf67f427d151301cd1dfd8 Mon Sep 17 00:00:00 2001
From ad228035652dbf96f3ee14ca10e14e85fb4e5b3c Mon Sep 17 00:00:00 2001
From: Yang Shi <yang.shi@linaro.org>
Date: Thu, 10 Dec 2015 10:58:51 -0800
Subject: [PATCH 065/328] x86/signal: delay calling signals on 32bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 065/325] x86/signal: delay calling signals on 32bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
When running some ptrace single step tests on x86-32 machine, the below problem
is triggered:

6
debian/patches-rt/0066-buffer_head-Replace-bh_uptodate_lock-for-rt.patch vendored
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@ -1,8 +1,8 @@
From 6b9121d4d6cf25eabc1b638027345308486f88b1 Mon Sep 17 00:00:00 2001
From 9c2e7dffa272d9112c453d37bf48c92bb1b4d287 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 18 Mar 2011 09:18:52 +0100
Subject: [PATCH 066/328] buffer_head: Replace bh_uptodate_lock for -rt
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 066/325] buffer_head: Replace bh_uptodate_lock for -rt
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Wrap the bit_spin_lock calls into a separate inline and add the RT
replacements with a real spinlock.

6
debian/patches-rt/0067-fs-jbd-jbd2-Make-state-lock-and-journal-head-lock-rt.patch vendored
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@ -1,9 +1,9 @@
From 72ca6594764d9a6523352dc609644bea68a3a74b Mon Sep 17 00:00:00 2001
From c6247543e73c08256490bf6ccd225a3476eefd3a Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 18 Mar 2011 10:11:25 +0100
Subject: [PATCH 067/328] fs: jbd/jbd2: Make state lock and journal head lock
Subject: [PATCH 067/325] 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-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
bit_spin_locks break under RT.

6
debian/patches-rt/0068-list_bl-Make-list-head-locking-RT-safe.patch vendored
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@ -1,8 +1,8 @@
From eb37c3d2df6895d5c86504fdb1a509d075414f52 Mon Sep 17 00:00:00 2001
From ffb1cb4821d5ac6ec3e2f69dc118584321113848 Mon Sep 17 00:00:00 2001
From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Fri, 21 Jun 2013 15:07:25 -0400
Subject: [PATCH 068/328] list_bl: Make list head locking RT safe
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 068/325] list_bl: Make list head locking RT safe
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
As per changes in include/linux/jbd_common.h for avoiding the
bit_spin_locks on RT ("fs: jbd/jbd2: Make state lock and journal

6
debian/patches-rt/0069-list_bl-fixup-bogus-lockdep-warning.patch vendored
View File

@ -1,8 +1,8 @@
From a294373c35c31ae762358146f49c3c48f1429526 Mon Sep 17 00:00:00 2001
From bdcdc6774f7346b9302a7cf88c2c6ad00afe3459 Mon Sep 17 00:00:00 2001
From: Josh Cartwright <joshc@ni.com>
Date: Thu, 31 Mar 2016 00:04:25 -0500
Subject: [PATCH 069/328] list_bl: fixup bogus lockdep warning
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 069/325] list_bl: fixup bogus lockdep warning
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
At first glance, the use of 'static inline' seems appropriate for
INIT_HLIST_BL_HEAD().

6
debian/patches-rt/0070-genirq-Disable-irqpoll-on-rt.patch vendored
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@ -1,8 +1,8 @@
From 974bfebe6d809861b9a25af561668633ef3168a7 Mon Sep 17 00:00:00 2001
From 7cebafc45724ddb601b485b97c0c931378a7d60d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 3 Jul 2009 08:29:57 -0500
Subject: [PATCH 070/328] genirq: Disable irqpoll on -rt
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 070/325] genirq: Disable irqpoll on -rt
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Creates long latencies for no value

8
debian/patches-rt/0071-genirq-Force-interrupt-thread-on-RT.patch vendored
View File

@ -1,8 +1,8 @@
From 056e2667682c7afa14f71cb6d97ccf2217c0c08b Mon Sep 17 00:00:00 2001
From 7dca342c202dd085c2ed2817d5bf9bdfb8d9fd4b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 3 Apr 2011 11:57:29 +0200
Subject: [PATCH 071/328] genirq: Force interrupt thread on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 071/325] genirq: Force interrupt thread on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Force threaded_irqs and optimize the code (force_irqthreads) in regard
to this.
@ -30,7 +30,7 @@ index eeceac3376fc..315f852b4981 100644
#define force_irqthreads (0)
#endif
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 23bcfa71077f..3c26d0708709 100644
index efcb54ee0922..0809bf7743af 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -24,6 +24,7 @@

6
debian/patches-rt/0072-Split-IRQ-off-and-zone-lock-while-freeing-pages-from.patch vendored
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@ -1,9 +1,9 @@
From 4c6015fdf87fb7f0f38ce92c85d5630d79c6ae23 Mon Sep 17 00:00:00 2001
From 2e4f0bf4e4b7f98603bec063dc960b95fd97fbce Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 28 May 2018 15:24:20 +0200
Subject: [PATCH 072/328] Split IRQ-off and zone->lock while freeing pages from
Subject: [PATCH 072/325] Split IRQ-off and zone->lock while freeing pages from
PCP list #1
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Split the IRQ-off section while accessing the PCP list from zone->lock
while freeing pages.

6
debian/patches-rt/0073-Split-IRQ-off-and-zone-lock-while-freeing-pages-from.patch vendored
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@ -1,9 +1,9 @@
From dba8e6d7ab200ab5fe544af8c6093bcb3d215320 Mon Sep 17 00:00:00 2001
From e2fc0821dfc12bc01f49756080b4563f0fc2c45c Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 28 May 2018 15:24:21 +0200
Subject: [PATCH 073/328] Split IRQ-off and zone->lock while freeing pages from
Subject: [PATCH 073/325] Split IRQ-off and zone->lock while freeing pages from
PCP list #2
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Split the IRQ-off section while accessing the PCP list from zone->lock
while freeing pages.

44
debian/patches-rt/0074-mm-SLxB-change-list_lock-to-raw_spinlock_t.patch vendored
View File

@ -1,8 +1,8 @@
From abbdf6516e6ac19a92a3c08fc7a2f1ecc66c2bc6 Mon Sep 17 00:00:00 2001
From 32c26f054fbd92f8fe27eba2443d9d7490232aa3 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 28 May 2018 15:24:22 +0200
Subject: [PATCH 074/328] mm/SLxB: change list_lock to raw_spinlock_t
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 074/325] mm/SLxB: change list_lock to raw_spinlock_t
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The list_lock is used with used with IRQs off on RT. Make it a raw_spinlock_t
otherwise the interrupts won't be disabled on -RT. The locking rules remain
@ -399,7 +399,7 @@ index 9632772e14be..d6b01d61f768 100644
#ifdef CONFIG_SLAB
struct list_head slabs_partial; /* partial list first, better asm code */
diff --git a/mm/slub.c b/mm/slub.c
index 9c3937c5ce38..ba20c68a9cfd 100644
index 9b7b989273d4..a3b4c5c04ffe 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1167,7 +1167,7 @@ static noinline int free_debug_processing(
@ -438,7 +438,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
return object;
}
@@ -2073,7 +2073,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page,
@@ -2071,7 +2071,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page,
* that acquire_slab() will see a slab page that
* is frozen
*/
@ -447,7 +447,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
}
} else {
m = M_FULL;
@@ -2084,7 +2084,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page,
@@ -2082,7 +2082,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page,
* slabs from diagnostic functions will not see
* any frozen slabs.
*/
@ -456,7 +456,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
}
}
@@ -2119,7 +2119,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page,
@@ -2117,7 +2117,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page,
goto redo;
if (lock)
@ -465,7 +465,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
if (m == M_FREE) {
stat(s, DEACTIVATE_EMPTY);
@@ -2154,10 +2154,10 @@ static void unfreeze_partials(struct kmem_cache *s,
@@ -2152,10 +2152,10 @@ static void unfreeze_partials(struct kmem_cache *s,
n2 = get_node(s, page_to_nid(page));
if (n != n2) {
if (n)
@ -478,7 +478,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
}
do {
@@ -2186,7 +2186,7 @@ static void unfreeze_partials(struct kmem_cache *s,
@@ -2184,7 +2184,7 @@ static void unfreeze_partials(struct kmem_cache *s,
}
if (n)
@ -487,7 +487,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
while (discard_page) {
page = discard_page;
@@ -2355,10 +2355,10 @@ static unsigned long count_partial(struct kmem_cache_node *n,
@@ -2353,10 +2353,10 @@ static unsigned long count_partial(struct kmem_cache_node *n,
unsigned long x = 0;
struct page *page;
@ -500,7 +500,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
return x;
}
#endif /* CONFIG_SLUB_DEBUG || CONFIG_SYSFS */
@@ -2793,7 +2793,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page,
@@ -2801,7 +2801,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page,
do {
if (unlikely(n)) {
@ -509,7 +509,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
n = NULL;
}
prior = page->freelist;
@@ -2825,7 +2825,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page,
@@ -2833,7 +2833,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page,
* Otherwise the list_lock will synchronize with
* other processors updating the list of slabs.
*/
@ -518,7 +518,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
}
}
@@ -2867,7 +2867,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page,
@@ -2875,7 +2875,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page,
add_partial(n, page, DEACTIVATE_TO_TAIL);
stat(s, FREE_ADD_PARTIAL);
}
@ -527,7 +527,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
return;
slab_empty:
@@ -2882,7 +2882,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page,
@@ -2890,7 +2890,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page,
remove_full(s, n, page);
}
@ -536,7 +536,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
stat(s, FREE_SLAB);
discard_slab(s, page);
}
@@ -3269,7 +3269,7 @@ static void
@@ -3288,7 +3288,7 @@ static void
init_kmem_cache_node(struct kmem_cache_node *n)
{
n->nr_partial = 0;
@ -545,7 +545,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
INIT_LIST_HEAD(&n->partial);
#ifdef CONFIG_SLUB_DEBUG
atomic_long_set(&n->nr_slabs, 0);
@@ -3656,7 +3656,7 @@ static void free_partial(struct kmem_cache *s, struct kmem_cache_node *n)
@@ -3675,7 +3675,7 @@ static void free_partial(struct kmem_cache *s, struct kmem_cache_node *n)
struct page *page, *h;
BUG_ON(irqs_disabled());
@ -554,7 +554,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
list_for_each_entry_safe(page, h, &n->partial, lru) {
if (!page->inuse) {
remove_partial(n, page);
@@ -3666,7 +3666,7 @@ static void free_partial(struct kmem_cache *s, struct kmem_cache_node *n)
@@ -3685,7 +3685,7 @@ static void free_partial(struct kmem_cache *s, struct kmem_cache_node *n)
"Objects remaining in %s on __kmem_cache_shutdown()");
}
}
@ -563,7 +563,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
list_for_each_entry_safe(page, h, &discard, lru)
discard_slab(s, page);
@@ -3939,7 +3939,7 @@ int __kmem_cache_shrink(struct kmem_cache *s)
@@ -3958,7 +3958,7 @@ int __kmem_cache_shrink(struct kmem_cache *s)
for (i = 0; i < SHRINK_PROMOTE_MAX; i++)
INIT_LIST_HEAD(promote + i);
@ -572,7 +572,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
/*
* Build lists of slabs to discard or promote.
@@ -3970,7 +3970,7 @@ int __kmem_cache_shrink(struct kmem_cache *s)
@@ -3989,7 +3989,7 @@ int __kmem_cache_shrink(struct kmem_cache *s)
for (i = SHRINK_PROMOTE_MAX - 1; i >= 0; i--)
list_splice(promote + i, &n->partial);
@ -581,7 +581,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
/* Release empty slabs */
list_for_each_entry_safe(page, t, &discard, lru)
@@ -4384,7 +4384,7 @@ static int validate_slab_node(struct kmem_cache *s,
@@ -4403,7 +4403,7 @@ static int validate_slab_node(struct kmem_cache *s,
struct page *page;
unsigned long flags;
@ -590,7 +590,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
list_for_each_entry(page, &n->partial, lru) {
validate_slab_slab(s, page, map);
@@ -4406,7 +4406,7 @@ static int validate_slab_node(struct kmem_cache *s,
@@ -4425,7 +4425,7 @@ static int validate_slab_node(struct kmem_cache *s,
s->name, count, atomic_long_read(&n->nr_slabs));
out:
@ -599,7 +599,7 @@ index 9c3937c5ce38..ba20c68a9cfd 100644
return count;
}
@@ -4596,12 +4596,12 @@ static int list_locations(struct kmem_cache *s, char *buf,
@@ -4615,12 +4615,12 @@ static int list_locations(struct kmem_cache *s, char *buf,
if (!atomic_long_read(&n->nr_slabs))
continue;

34
debian/patches-rt/0075-mm-SLUB-delay-giving-back-empty-slubs-to-IRQ-enabled.patch vendored
View File

@ -1,9 +1,9 @@
From b3c42996e1092269d6fac0652b22140250f11b7b Mon Sep 17 00:00:00 2001
From 6e725f0366939a0d83764cd8835200cb222bb1af Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 21 Jun 2018 17:29:19 +0200
Subject: [PATCH 075/328] mm/SLUB: delay giving back empty slubs to IRQ enabled
Subject: [PATCH 075/325] mm/SLUB: delay giving back empty slubs to IRQ enabled
regions
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
__free_slab() is invoked with disabled interrupts which increases the
irq-off time while __free_pages() is doing the work.
@ -18,7 +18,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
1 file changed, 69 insertions(+), 5 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c
index ba20c68a9cfd..224663e20772 100644
index a3b4c5c04ffe..19bc021a2726 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1330,6 +1330,12 @@ static inline void dec_slabs_node(struct kmem_cache *s, int node,
@ -64,7 +64,7 @@ index ba20c68a9cfd..224663e20772 100644
} else
__free_slab(s, page);
}
@@ -2223,14 +2245,21 @@ static void put_cpu_partial(struct kmem_cache *s, struct page *page, int drain)
@@ -2221,14 +2243,21 @@ static void put_cpu_partial(struct kmem_cache *s, struct page *page, int drain)
pobjects = oldpage->pobjects;
pages = oldpage->pages;
if (drain && pobjects > s->cpu_partial) {
@ -86,7 +86,7 @@ index ba20c68a9cfd..224663e20772 100644
oldpage = NULL;
pobjects = 0;
pages = 0;
@@ -2300,7 +2329,22 @@ static bool has_cpu_slab(int cpu, void *info)
@@ -2298,7 +2327,22 @@ static bool has_cpu_slab(int cpu, void *info)
static void flush_all(struct kmem_cache *s)
{
@ -109,7 +109,7 @@ index ba20c68a9cfd..224663e20772 100644
}
/*
@@ -2498,8 +2542,10 @@ static inline void *get_freelist(struct kmem_cache *s, struct page *page)
@@ -2496,8 +2540,10 @@ static inline void *get_freelist(struct kmem_cache *s, struct page *page)
* already disabled (which is the case for bulk allocation).
*/
static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
@ -121,7 +121,7 @@ index ba20c68a9cfd..224663e20772 100644
void *freelist;
struct page *page;
@@ -2555,6 +2601,13 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
@@ -2563,6 +2609,13 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
VM_BUG_ON(!c->page->frozen);
c->freelist = get_freepointer(s, freelist);
c->tid = next_tid(c->tid);
@ -135,7 +135,7 @@ index ba20c68a9cfd..224663e20772 100644
return freelist;
new_slab:
@@ -2570,7 +2623,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
@@ -2578,7 +2631,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
if (unlikely(!freelist)) {
slab_out_of_memory(s, gfpflags, node);
@ -144,7 +144,7 @@ index ba20c68a9cfd..224663e20772 100644
}
page = c->page;
@@ -2583,7 +2636,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
@@ -2591,7 +2644,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
goto new_slab; /* Slab failed checks. Next slab needed */
deactivate_slab(s, page, get_freepointer(s, freelist), c);
@ -153,7 +153,7 @@ index ba20c68a9cfd..224663e20772 100644
}
/*
@@ -2595,6 +2648,7 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
@@ -2603,6 +2656,7 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
{
void *p;
unsigned long flags;
@ -161,7 +161,7 @@ index ba20c68a9cfd..224663e20772 100644
local_irq_save(flags);
#ifdef CONFIG_PREEMPT
@@ -2606,8 +2660,9 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
@@ -2614,8 +2668,9 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
c = this_cpu_ptr(s->cpu_slab);
#endif
@ -172,7 +172,7 @@ index ba20c68a9cfd..224663e20772 100644
return p;
}
@@ -3085,6 +3140,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
@@ -3095,6 +3150,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
void **p)
{
struct kmem_cache_cpu *c;
@ -180,7 +180,7 @@ index ba20c68a9cfd..224663e20772 100644
int i;
/* memcg and kmem_cache debug support */
@@ -3108,7 +3164,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
@@ -3127,7 +3183,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
* of re-populating per CPU c->freelist
*/
p[i] = ___slab_alloc(s, flags, NUMA_NO_NODE,
@ -189,7 +189,7 @@ index ba20c68a9cfd..224663e20772 100644
if (unlikely(!p[i]))
goto error;
@@ -3120,6 +3176,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
@@ -3139,6 +3195,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
}
c->tid = next_tid(c->tid);
local_irq_enable();
@ -197,7 +197,7 @@ index ba20c68a9cfd..224663e20772 100644
/* Clear memory outside IRQ disabled fastpath loop */
if (unlikely(flags & __GFP_ZERO)) {
@@ -3134,6 +3191,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
@@ -3153,6 +3210,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
return i;
error:
local_irq_enable();
@ -205,7 +205,7 @@ index ba20c68a9cfd..224663e20772 100644
slab_post_alloc_hook(s, flags, i, p);
__kmem_cache_free_bulk(s, i, p);
return 0;
@@ -4183,6 +4241,12 @@ void __init kmem_cache_init(void)
@@ -4202,6 +4260,12 @@ void __init kmem_cache_init(void)
{
static __initdata struct kmem_cache boot_kmem_cache,
boot_kmem_cache_node;

6
debian/patches-rt/0076-mm-page_alloc-rt-friendly-per-cpu-pages.patch vendored
View File

@ -1,8 +1,8 @@
From d3dec69695332f82af11a39b0fd327ad173c4715 Mon Sep 17 00:00:00 2001
From 3c705eb7ff76685a9c4b40776b6d975e64cf6df0 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 3 Jul 2009 08:29:37 -0500
Subject: [PATCH 076/328] mm: page_alloc: rt-friendly per-cpu pages
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 076/325] mm: page_alloc: rt-friendly per-cpu pages
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
rt-friendly per-cpu pages: convert the irqs-off per-cpu locking
method into a preemptible, explicit-per-cpu-locks method.

6
debian/patches-rt/0077-mm-swap-Convert-to-percpu-locked.patch vendored
View File

@ -1,8 +1,8 @@
From a03a4ee82ac46307acebdfe58e602aea9835a9a1 Mon Sep 17 00:00:00 2001
From c1c0dcf5b79064717f21d1c3d294827591fea472 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 3 Jul 2009 08:29:51 -0500
Subject: [PATCH 077/328] mm/swap: Convert to percpu locked
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 077/325] mm/swap: Convert to percpu locked
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Replace global locks (get_cpu + local_irq_save) with "local_locks()".
Currently there is one of for "rotate" and one for "swap".

6
debian/patches-rt/0078-mm-perform-lru_add_drain_all-remotely.patch vendored
View File

@ -1,8 +1,8 @@
From c48feb8fe1bad2aed0a15440a28da0bca8b5292a Mon Sep 17 00:00:00 2001
From 1025690c55aad067878962af6318286d26c87aaa Mon Sep 17 00:00:00 2001
From: Luiz Capitulino <lcapitulino@redhat.com>
Date: Fri, 27 May 2016 15:03:28 +0200
Subject: [PATCH 078/328] mm: perform lru_add_drain_all() remotely
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 078/325] mm: perform lru_add_drain_all() remotely
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
lru_add_drain_all() works by scheduling lru_add_drain_cpu() to run
on all CPUs that have non-empty LRU pagevecs and then waiting for

6
debian/patches-rt/0079-mm-vmstat-Protect-per-cpu-variables-with-preempt-dis.patch vendored
View File

@ -1,9 +1,9 @@
From 4e41266214b4e88cf9fb9d2c20b5bbc83dcfbdcc Mon Sep 17 00:00:00 2001
From 92905381cb530f0b66c5d80a2877e1994e775676 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 3 Jul 2009 08:30:13 -0500
Subject: [PATCH 079/328] mm/vmstat: Protect per cpu variables with preempt
Subject: [PATCH 079/325] mm/vmstat: Protect per cpu variables with preempt
disable on RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Disable preemption on -RT for the vmstat code. On vanila the code runs in
IRQ-off regions while on -RT it is not. "preempt_disable" ensures that the

6
debian/patches-rt/0080-ARM-Initialize-split-page-table-locks-for-vector-pag.patch vendored
View File

@ -1,9 +1,9 @@
From 5af4ea849237914c63d3fd50079e6975aa28f9b2 Mon Sep 17 00:00:00 2001
From fff91e4cb5539ab6cdd32a15661e2f5354552fdb Mon Sep 17 00:00:00 2001
From: Frank Rowand <frank.rowand@am.sony.com>
Date: Sat, 1 Oct 2011 18:58:13 -0700
Subject: [PATCH 080/328] ARM: Initialize split page table locks for vector
Subject: [PATCH 080/325] ARM: Initialize split page table locks for vector
page
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Without this patch, ARM can not use SPLIT_PTLOCK_CPUS if
PREEMPT_RT_FULL=y because vectors_user_mapping() creates a

12
debian/patches-rt/0081-mm-Enable-SLUB-for-RT.patch vendored
View File

@ -1,8 +1,8 @@
From 5bc9982e129b20ecb8f6c32d3d342af5087ffdae Mon Sep 17 00:00:00 2001
From 82e554da6555d60e1a8e5c390a27a12d338f1b53 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 25 Oct 2012 10:32:35 +0100
Subject: [PATCH 081/328] mm: Enable SLUB for RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 081/325] mm: Enable SLUB for RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Avoid the memory allocation in IRQ section
@ -14,10 +14,10 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
1 file changed, 6 insertions(+)
diff --git a/mm/slub.c b/mm/slub.c
index 224663e20772..cbe47408c6eb 100644
index 19bc021a2726..181b2cb6ffbb 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3680,6 +3680,11 @@ static void list_slab_objects(struct kmem_cache *s, struct page *page,
@@ -3699,6 +3699,11 @@ static void list_slab_objects(struct kmem_cache *s, struct page *page,
const char *text)
{
#ifdef CONFIG_SLUB_DEBUG
@ -29,7 +29,7 @@ index 224663e20772..cbe47408c6eb 100644
void *addr = page_address(page);
void *p;
unsigned long *map = kcalloc(BITS_TO_LONGS(page->objects),
@@ -3701,6 +3706,7 @@ static void list_slab_objects(struct kmem_cache *s, struct page *page,
@@ -3720,6 +3725,7 @@ static void list_slab_objects(struct kmem_cache *s, struct page *page,
slab_unlock(page);
kfree(map);
#endif

8
debian/patches-rt/0082-slub-Enable-irqs-for-__GFP_WAIT.patch vendored
View File

@ -1,8 +1,8 @@
From c908b13d5d4d0e1154b41e93d9fb8349b7b7197a Mon Sep 17 00:00:00 2001
From a84add7d6794ad6184fc6c5c6fbf63c20c733dac Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 9 Jan 2013 12:08:15 +0100
Subject: [PATCH 082/328] slub: Enable irqs for __GFP_WAIT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 082/325] slub: Enable irqs for __GFP_WAIT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
SYSTEM_RUNNING might be too late for enabling interrupts. Allocations
with GFP_WAIT can happen before that. So use this as an indicator.
@ -13,7 +13,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/mm/slub.c b/mm/slub.c
index cbe47408c6eb..81c32ceab228 100644
index 181b2cb6ffbb..555adbd96356 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1570,10 +1570,17 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)

6
debian/patches-rt/0083-slub-Disable-SLUB_CPU_PARTIAL.patch vendored
View File

@ -1,8 +1,8 @@
From 41e0143022ef4180dafc14f033e72efa7ac652de Mon Sep 17 00:00:00 2001
From 5bface7c2f9af3d585acc7f3ac3e0f8096ec4bf1 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 15 Apr 2015 19:00:47 +0200
Subject: [PATCH 083/328] slub: Disable SLUB_CPU_PARTIAL
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 083/325] slub: Disable SLUB_CPU_PARTIAL
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:915
|in_atomic(): 1, irqs_disabled(): 0, pid: 87, name: rcuop/7

12
debian/patches-rt/0084-mm-memcontrol-Don-t-call-schedule_work_on-in-preempt.patch vendored
View File

@ -1,9 +1,9 @@
From 5d6ef143b9e65be0cda54dcea9150f3cfa951ffd Mon Sep 17 00:00:00 2001
From 6089b66d138cc77f35c9d6f7d526cc322b295f28 Mon Sep 17 00:00:00 2001
From: Yang Shi <yang.shi@windriver.com>
Date: Wed, 30 Oct 2013 11:48:33 -0700
Subject: [PATCH 084/328] mm/memcontrol: Don't call schedule_work_on in
Subject: [PATCH 084/325] mm/memcontrol: Don't call schedule_work_on in
preemption disabled context
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The following trace is triggered when running ltp oom test cases:
@ -49,10 +49,10 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 3a3d109dce21..cf9e81fb342d 100644
index 3b78b6af353b..1323fa231eed 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2082,7 +2082,7 @@ static void drain_all_stock(struct mem_cgroup *root_memcg)
@@ -2084,7 +2084,7 @@ static void drain_all_stock(struct mem_cgroup *root_memcg)
* as well as workers from this path always operate on the local
* per-cpu data. CPU up doesn't touch memcg_stock at all.
*/
@ -61,7 +61,7 @@ index 3a3d109dce21..cf9e81fb342d 100644
for_each_online_cpu(cpu) {
struct memcg_stock_pcp *stock = &per_cpu(memcg_stock, cpu);
struct mem_cgroup *memcg;
@@ -2102,7 +2102,7 @@ static void drain_all_stock(struct mem_cgroup *root_memcg)
@@ -2104,7 +2104,7 @@ static void drain_all_stock(struct mem_cgroup *root_memcg)
}
css_put(&memcg->css);
}

22
debian/patches-rt/0085-mm-memcontrol-Replace-local_irq_disable-with-local-l.patch vendored
View File

@ -1,9 +1,9 @@
From ab73b56574e07b881a37aa1a4b0040a331352d7c Mon Sep 17 00:00:00 2001
From 3e3a73ff713a1c57585373ecc40a3079f9baff65 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 28 Jan 2015 17:14:16 +0100
Subject: [PATCH 085/328] mm/memcontrol: Replace local_irq_disable with local
Subject: [PATCH 085/325] mm/memcontrol: Replace local_irq_disable with local
locks
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
There are a few local_irq_disable() which then take sleeping locks. This
patch converts them local locks.
@ -14,7 +14,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index cf9e81fb342d..421ac74450f6 100644
index 1323fa231eed..4156a4e766fb 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -69,6 +69,7 @@
@ -34,7 +34,7 @@ index cf9e81fb342d..421ac74450f6 100644
/* Whether legacy memory+swap accounting is active */
static bool do_memsw_account(void)
{
@@ -4922,12 +4925,12 @@ static int mem_cgroup_move_account(struct page *page,
@@ -4930,12 +4933,12 @@ static int mem_cgroup_move_account(struct page *page,
ret = 0;
@ -49,7 +49,7 @@ index cf9e81fb342d..421ac74450f6 100644
out_unlock:
unlock_page(page);
out:
@@ -6046,10 +6049,10 @@ void mem_cgroup_commit_charge(struct page *page, struct mem_cgroup *memcg,
@@ -6054,10 +6057,10 @@ void mem_cgroup_commit_charge(struct page *page, struct mem_cgroup *memcg,
commit_charge(page, memcg, lrucare);
@ -62,7 +62,7 @@ index cf9e81fb342d..421ac74450f6 100644
if (do_memsw_account() && PageSwapCache(page)) {
swp_entry_t entry = { .val = page_private(page) };
@@ -6118,7 +6121,7 @@ static void uncharge_batch(const struct uncharge_gather *ug)
@@ -6126,7 +6129,7 @@ static void uncharge_batch(const struct uncharge_gather *ug)
memcg_oom_recover(ug->memcg);
}
@ -71,7 +71,7 @@ index cf9e81fb342d..421ac74450f6 100644
__mod_memcg_state(ug->memcg, MEMCG_RSS, -ug->nr_anon);
__mod_memcg_state(ug->memcg, MEMCG_CACHE, -ug->nr_file);
__mod_memcg_state(ug->memcg, MEMCG_RSS_HUGE, -ug->nr_huge);
@@ -6126,7 +6129,7 @@ static void uncharge_batch(const struct uncharge_gather *ug)
@@ -6134,7 +6137,7 @@ static void uncharge_batch(const struct uncharge_gather *ug)
__count_memcg_events(ug->memcg, PGPGOUT, ug->pgpgout);
__this_cpu_add(ug->memcg->stat_cpu->nr_page_events, nr_pages);
memcg_check_events(ug->memcg, ug->dummy_page);
@ -80,7 +80,7 @@ index cf9e81fb342d..421ac74450f6 100644
if (!mem_cgroup_is_root(ug->memcg))
css_put_many(&ug->memcg->css, nr_pages);
@@ -6289,10 +6292,10 @@ void mem_cgroup_migrate(struct page *oldpage, struct page *newpage)
@@ -6297,10 +6300,10 @@ void mem_cgroup_migrate(struct page *oldpage, struct page *newpage)
commit_charge(newpage, memcg, false);
@ -93,7 +93,7 @@ index cf9e81fb342d..421ac74450f6 100644
}
DEFINE_STATIC_KEY_FALSE(memcg_sockets_enabled_key);
@@ -6484,6 +6487,7 @@ void mem_cgroup_swapout(struct page *page, swp_entry_t entry)
@@ -6482,6 +6485,7 @@ void mem_cgroup_swapout(struct page *page, swp_entry_t entry)
struct mem_cgroup *memcg, *swap_memcg;
unsigned int nr_entries;
unsigned short oldid;
@ -101,7 +101,7 @@ index cf9e81fb342d..421ac74450f6 100644
VM_BUG_ON_PAGE(PageLRU(page), page);
VM_BUG_ON_PAGE(page_count(page), page);
@@ -6529,13 +6533,17 @@ void mem_cgroup_swapout(struct page *page, swp_entry_t entry)
@@ -6527,13 +6531,17 @@ void mem_cgroup_swapout(struct page *page, swp_entry_t entry)
* important here to have the interrupts disabled because it is the
* only synchronisation we have for updating the per-CPU variables.
*/

6
debian/patches-rt/0086-mm-zsmalloc-copy-with-get_cpu_var-and-locking.patch vendored
View File

@ -1,8 +1,8 @@
From c8eeca08279f6363742db822856cc18ae1b7bdbd Mon Sep 17 00:00:00 2001
From 9aa358dc71da851d2af3660ac73411ad469a331f Mon Sep 17 00:00:00 2001
From: Mike Galbraith <umgwanakikbuti@gmail.com>
Date: Tue, 22 Mar 2016 11:16:09 +0100
Subject: [PATCH 086/328] mm/zsmalloc: copy with get_cpu_var() and locking
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 086/325] mm/zsmalloc: copy with get_cpu_var() and locking
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
get_cpu_var() disables preemption and triggers a might_sleep() splat later.
This is replaced with get_locked_var().

6
debian/patches-rt/0087-x86-mm-pat-disable-preemption-__split_large_page-aft.patch vendored
View File

@ -1,9 +1,9 @@
From 58952b3995a060f4fc7fbc02552ac489639d565e Mon Sep 17 00:00:00 2001
From 27f3206f1c5af4a5290793529fd61d28c347c32f Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 11 Dec 2018 21:53:43 +0100
Subject: [PATCH 087/328] x86/mm/pat: disable preemption __split_large_page()
Subject: [PATCH 087/325] x86/mm/pat: disable preemption __split_large_page()
after spin_lock()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Commit "x86/mm/pat: Disable preemption around __flush_tlb_all()" added a
warning if __flush_tlb_all() is invoked in preemptible context. On !RT

6
debian/patches-rt/0088-radix-tree-use-local-locks.patch vendored
View File

@ -1,8 +1,8 @@
From 7f7e6402ea1895f3d2197122d4379c46a3a7fe14 Mon Sep 17 00:00:00 2001
From d1e6ca9dc1adeb9619ee73c22df645243a58833d Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 25 Jan 2017 16:34:27 +0100
Subject: [PATCH 088/328] radix-tree: use local locks
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 088/325] radix-tree: use local locks
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The preload functionality uses per-CPU variables and preempt-disable to
ensure that it does not switch CPUs during its usage. This patch adds

6
debian/patches-rt/0089-timers-Prepare-for-full-preemption.patch vendored
View File

@ -1,8 +1,8 @@
From bb113ab4c9dea8e53db84af84d34864c4f3e9b2d Mon Sep 17 00:00:00 2001
From bf7590c47e53af70146859ca60ae05df521e60e4 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 3 Jul 2009 08:29:34 -0500
Subject: [PATCH 089/328] timers: Prepare for full preemption
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 089/325] timers: Prepare for full preemption
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
When softirqs can be preempted we need to make sure that cancelling
the timer from the active thread can not deadlock vs. a running timer

8
debian/patches-rt/0090-x86-kvm-Require-const-tsc-for-RT.patch vendored
View File

@ -1,8 +1,8 @@
From c87615728aaaf5a59575f49682ed6339a9cb116f Mon Sep 17 00:00:00 2001
From 9d89b02f01f1b2e5a9eacb0f65b3794aae03a28c Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 6 Nov 2011 12:26:18 +0100
Subject: [PATCH 090/328] x86: kvm Require const tsc for RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 090/325] x86: kvm Require const tsc for RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Non constant TSC is a nightmare on bare metal already, but with
virtualization it becomes a complete disaster because the workarounds
@ -15,7 +15,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
1 file changed, 7 insertions(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ade694f94a49..2dfb7c81743e 100644
index 2cb379e261c0..a94c1a01b894 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6873,6 +6873,13 @@ int kvm_arch_init(void *opaque)

9
debian/patches-rt/0091-pci-switchtec-Don-t-use-completion-s-wait-queue.patch vendored
View File

@ -1,8 +1,8 @@
From d46161e1a4fa5ff7b32deb64ac2e7698d0a56e49 Mon Sep 17 00:00:00 2001
From 92f7c935ef1e9ebcae344a957f0f1cf36d9ca182 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 4 Oct 2017 10:24:23 +0200
Subject: [PATCH 091/328] pci/switchtec: Don't use completion's wait queue
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 091/325] pci/switchtec: Don't use completion's wait queue
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The poll callback is using completion's wait_queue_head_t member and
puts it in poll_wait() so the poll() caller gets a wakeup after command
@ -19,6 +19,9 @@ test it.
Cc: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Cc: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
[Salvatore Bonaccorso: Refresh for context changes in 4.19.116 due to
12ce9fd7fc87 ("PCI/switchtec: Fix init_completion race condition with
poll_wait()")]
---
drivers/pci/switch/switchtec.c | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)

6
debian/patches-rt/0092-wait.h-include-atomic.h.patch vendored
View File

@ -1,11 +1,11 @@
From 5048f6148f091b822260d482639172336a66cbc3 Mon Sep 17 00:00:00 2001
From 62300f714d10365c00ac9d0b8b35a79be8f2fd26 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 28 Oct 2013 12:19:57 +0100
Subject: [PATCH 092/328] wait.h: include atomic.h
Subject: [PATCH 092/325] wait.h: include atomic.h
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
| CC init/main.o
|In file included from include/linux/mmzone.h:9:0,

6
debian/patches-rt/0093-work-simple-Simple-work-queue-implemenation.patch vendored
View File

@ -1,8 +1,8 @@
From 370c2439db620266b1bb104cc624841eec515e5c Mon Sep 17 00:00:00 2001
From 1af66c1b241adaee0ae77bcdfb1534a60d08264a Mon Sep 17 00:00:00 2001
From: Daniel Wagner <daniel.wagner@bmw-carit.de>
Date: Fri, 11 Jul 2014 15:26:11 +0200
Subject: [PATCH 093/328] work-simple: Simple work queue implemenation
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 093/325] work-simple: Simple work queue implemenation
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Provides a framework for enqueuing callbacks from irq context
PREEMPT_RT_FULL safe. The callbacks are executed in kthread context.

6
debian/patches-rt/0094-work-simple-drop-a-shit-statement-in-SWORK_EVENT_PEN.patch vendored
View File

@ -1,9 +1,9 @@
From 8c88098a7081d7cd354fb9e2a64598e6e10ce525 Mon Sep 17 00:00:00 2001
From 0ec9d3d9509f13ebc479c2de4abd9ba1a50eeef7 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 10 Sep 2018 18:00:31 +0200
Subject: [PATCH 094/328] work-simple: drop a shit statement in
Subject: [PATCH 094/325] work-simple: drop a shit statement in
SWORK_EVENT_PENDING
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Dan Carpenter reported
| smatch warnings:

10
debian/patches-rt/0095-completion-Use-simple-wait-queues.patch vendored
View File

@ -1,8 +1,8 @@
From ae24940034c02ed671e3a5cc9c4cf31ebfc24fed Mon Sep 17 00:00:00 2001
From b44f079dc57b192c97e92355b26180aaf99b6678 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 11 Jan 2013 11:23:51 +0100
Subject: [PATCH 095/328] completion: Use simple wait queues
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 095/325] completion: Use simple wait queues
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
Completions have no long lasting callbacks and therefor do not need
the complex waitqueue variant. Use simple waitqueues which reduces the
@ -55,10 +55,10 @@ index b704e4bce171..c364abaac548 100644
break;
default:
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 2050993fb58b..e2ca75a6e241 100644
index a9239455eb6d..ed56d61d888a 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -1626,7 +1626,7 @@ static void ffs_data_put(struct ffs_data *ffs)
@@ -1627,7 +1627,7 @@ static void ffs_data_put(struct ffs_data *ffs)
pr_info("%s(): freeing\n", __func__);
ffs_data_clear(ffs);
BUG_ON(waitqueue_active(&ffs->ev.waitq) ||

6
debian/patches-rt/0096-fs-aio-simple-simple-work.patch vendored
View File

@ -1,8 +1,8 @@
From 4ab27b1ec5f678a5dd444c6e1d3cdff6eeabfa12 Mon Sep 17 00:00:00 2001
From 0bc73d798d3c94781bed15e4ee21c8de0a616835 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 16 Feb 2015 18:49:10 +0100
Subject: [PATCH 096/328] fs/aio: simple simple work
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Subject: [PATCH 096/325] fs/aio: simple simple work
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:768
|in_atomic(): 1, irqs_disabled(): 0, pid: 26, name: rcuos/2

138
debian/patches-rt/0097-genirq-Do-not-invoke-the-affinity-callback-via-a-wor.patch vendored
View File

@ -1,138 +0,0 @@
From d349b691ea7fdefe94bb546a0533b63786c1857d Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 21 Aug 2013 17:48:46 +0200
Subject: [PATCH 097/328] 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-4.19.106-rt46.tar.xz
Joe Korty reported, that __irq_set_affinity_locked() schedules a
workqueue while holding a rawlock which results in a might_sleep()
warning.
This patch uses swork_queue() instead.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
include/linux/interrupt.h | 6 +++++
kernel/irq/manage.c | 46 ++++++++++++++++++++++++++++++++++++---
2 files changed, 49 insertions(+), 3 deletions(-)
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -13,6 +13,7 @@
#include <linux/hrtimer.h>
#include <linux/kref.h>
#include <linux/workqueue.h>
+#include <linux/swork.h>
#include <linux/atomic.h>
#include <asm/ptrace.h>
@@ -225,6 +226,7 @@
* struct irq_affinity_notify - context for notification of IRQ affinity changes
* @irq: Interrupt to which notification applies
* @kref: Reference count, for internal use
+ * @swork: Swork item, for internal use
* @work: Work item, for internal use
* @notify: Function to be called on change. This will be
* called in process context.
@@ -236,7 +238,11 @@
struct irq_affinity_notify {
unsigned int irq;
struct kref kref;
+#ifdef CONFIG_PREEMPT_RT_BASE
+ struct swork_event swork;
+#else
struct work_struct work;
+#endif
void (*notify)(struct irq_affinity_notify *, const cpumask_t *mask);
void (*release)(struct kref *ref);
};
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -285,7 +285,12 @@
if (desc->affinity_notify) {
kref_get(&desc->affinity_notify->kref);
+
+#ifdef CONFIG_PREEMPT_RT_BASE
+ if (!swork_queue(&desc->affinity_notify->swork)) {
+#else
if (!schedule_work(&desc->affinity_notify->work)) {
+#endif
/* Work was already scheduled, drop our extra ref */
kref_put(&desc->affinity_notify->kref,
desc->affinity_notify->release);
@@ -327,10 +332,8 @@
}
EXPORT_SYMBOL_GPL(irq_set_affinity_hint);
-static void irq_affinity_notify(struct work_struct *work)
+static void _irq_affinity_notify(struct irq_affinity_notify *notify)
{
- struct irq_affinity_notify *notify =
- container_of(work, struct irq_affinity_notify, work);
struct irq_desc *desc = irq_to_desc(notify->irq);
cpumask_var_t cpumask;
unsigned long flags;
@@ -352,6 +355,35 @@
kref_put(&notify->kref, notify->release);
}
+#ifdef CONFIG_PREEMPT_RT_BASE
+static void init_helper_thread(void)
+{
+ static int init_sworker_once;
+
+ if (init_sworker_once)
+ return;
+ if (WARN_ON(swork_get()))
+ return;
+ init_sworker_once = 1;
+}
+
+static void irq_affinity_notify(struct swork_event *swork)
+{
+ struct irq_affinity_notify *notify =
+ container_of(swork, struct irq_affinity_notify, swork);
+ _irq_affinity_notify(notify);
+}
+
+#else
+
+static void irq_affinity_notify(struct work_struct *work)
+{
+ struct irq_affinity_notify *notify =
+ container_of(work, struct irq_affinity_notify, work);
+ _irq_affinity_notify(notify);
+}
+#endif
+
/**
* irq_set_affinity_notifier - control notification of IRQ affinity changes
* @irq: Interrupt for which to enable/disable notification
@@ -380,7 +412,12 @@
if (notify) {
notify->irq = irq;
kref_init(&notify->kref);
+#ifdef CONFIG_PREEMPT_RT_BASE
+ INIT_SWORK(&notify->swork, irq_affinity_notify);
+ init_helper_thread();
+#else
INIT_WORK(&notify->work, irq_affinity_notify);
+#endif
}
raw_spin_lock_irqsave(&desc->lock, flags);
@@ -389,10 +426,13 @@
raw_spin_unlock_irqrestore(&desc->lock, flags);
if (old_notify) {
+#ifndef CONFIG_PREEMPT_RT_BASE
+ /* Need to address this for PREEMPT_RT */
if (cancel_work_sync(&old_notify->work)) {
/* Pending work had a ref, put that one too */
kref_put(&old_notify->kref, old_notify->release);
}
+#endif
kref_put(&old_notify->kref, old_notify->release);
}

6
debian/patches-rt/0098-time-hrtimer-avoid-schedule_work-with-interrupts-dis.patch → debian/patches-rt/0097-time-hrtimer-avoid-schedule_work-with-interrupts-dis.patch vendored
View File

@ -1,9 +1,9 @@
From 059e9b393e1838e4ad06a521a8e11c21e7ea7919 Mon Sep 17 00:00:00 2001
From 14c8c3829b5d445e2e8d2d0faa3d5aefffd4057d Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 15 Nov 2017 17:29:51 +0100
Subject: [PATCH 098/328] time/hrtimer: avoid schedule_work() with interrupts
Subject: [PATCH 097/325] time/hrtimer: avoid schedule_work() with interrupts
disabled
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
The NOHZ code tries to schedule a workqueue with interrupts disabled.
Since this does not work -RT I am switching it to swork instead.

14
debian/patches-rt/0099-hrtimer-consolidate-hrtimer_init-hrtimer_init_sleepe.patch → debian/patches-rt/0098-hrtimer-consolidate-hrtimer_init-hrtimer_init_sleepe.patch vendored
View File

@ -1,9 +1,9 @@
From 10f79182845e34e88499d6ef178e5a7e79a1f0b5 Mon Sep 17 00:00:00 2001
From 9a9c6744f1401c493421737e4069babc9029adb4 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 3 Jul 2018 11:25:41 +0200
Subject: [PATCH 099/328] hrtimer: consolidate hrtimer_init() +
Subject: [PATCH 098/325] hrtimer: consolidate hrtimer_init() +
hrtimer_init_sleeper() calls
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.106-rt46.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
hrtimer_init_sleeper() calls require a prior initialisation of the
hrtimer object with hrtimer_init(). Lets make the initialisation of
@ -126,10 +126,10 @@ index 2b5ef8e94d19..94bd2e841de6 100644
hrtimer_start_range_ns(&__t.timer, timeout, \
current->timer_slack_ns, \
diff --git a/kernel/futex.c b/kernel/futex.c
index 5c8053098fc8..23e1f8a478e8 100644
index 32f9e3fa8c46..a8081f82579e 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2704,10 +2704,9 @@ static int futex_wait(u32 __user *uaddr, unsigned int flags, u32 val,
@@ -2721,10 +2721,9 @@ static int futex_wait(u32 __user *uaddr, unsigned int flags, u32 val,
if (abs_time) {
to = &timeout;
@ -143,7 +143,7 @@ index 5c8053098fc8..23e1f8a478e8 100644
hrtimer_set_expires_range_ns(&to->timer, *abs_time,
current->timer_slack_ns);
}
@@ -2806,9 +2805,8 @@ static int futex_lock_pi(u32 __user *uaddr, unsigned int flags,
@@ -2823,9 +2822,8 @@ static int futex_lock_pi(u32 __user *uaddr, unsigned int flags,
if (time) {
to = &timeout;
@ -155,7 +155,7 @@ index 5c8053098fc8..23e1f8a478e8 100644
hrtimer_set_expires(&to->timer, *time);
}
@@ -3245,10 +3243,9 @@ static int futex_wait_requeue_pi(u32 __user *uaddr, unsigned int flags,
@@ -3262,10 +3260,9 @@ static int futex_wait_requeue_pi(u32 __user *uaddr, unsigned int flags,
if (abs_time) {
to = &timeout;

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