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[rt] Update to 4.14.15-rt13

This commit is contained in:
Salvatore Bonaccorso 2018-01-31 20:59:07 +01:00
parent f01c4e1f91
commit d3d73f5119
383 changed files with 638 additions and 716 deletions
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1
debian/changelog vendored
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@ -202,6 +202,7 @@ linux (4.14.15-1) UNRELEASED; urgency=medium
* Revert "module: Add retpoline tag to VERMAGIC"
* [rt] Update to 4.14.15-rt11
* nfsd: auth: Fix gid sorting when rootsquash enabled (CVE-2018-1000028)
* [rt] Update to 4.14.15-rt13
[ Ben Hutchings ]
* bpf: Avoid ABI change in 4.14.14

2
debian/patches/features/all/rt/0001-timers-Use-static-keys-for-migrate_enable-nohz_activ.patch vendored
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@ -1,7 +1,7 @@
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:50 +0100
Subject: [PATCH 01/29] timers: Use static keys for migrate_enable/nohz_active
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The members migrate_enable and nohz_active in the timer/hrtimer per CPU
bases have been introduced to avoid accessing global variables for these

4
debian/patches/features/all/rt/0001-tracing-Move-hist-trigger-Documentation-to-histogram.patch vendored
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@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:23 -0600
Date: Mon, 15 Jan 2018 20:51:35 -0600
Subject: [PATCH 01/37] tracing: Move hist trigger Documentation to
histogram.txt
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The hist trigger Documentation takes up a large part of events.txt -
since it will be getting even larger, move it to a separate file.

2
debian/patches/features/all/rt/0001-tracing-Steve-s-unofficial-trace_recursive_lock-patc.patch vendored
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@ -2,7 +2,7 @@ From: Steven Rostedt <rostedt@goodmis.org>
Date: Fri, 22 Sep 2017 14:58:15 -0500
Subject: [PATCH 01/42] tracing: Steve's unofficial trace_recursive_lock()
patch
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
On Tue, 5 Sep 2017 16:57:52 -0500
Tom Zanussi <tom.zanussi@linux.intel.com> wrote:

2
debian/patches/features/all/rt/0002-hrtimer-Correct-blantanly-wrong-comment.patch vendored
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@ -1,7 +1,7 @@
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:51 +0100
Subject: [PATCH 02/29] hrtimer: Correct blantanly wrong comment
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The protection of a hrtimer which runs its callback against migration to a
different CPU has nothing to do with hard interrupt context.

4
debian/patches/features/all/rt/0002-tracing-Add-Documentation-for-log2-modifier.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:24 -0600
Date: Mon, 15 Jan 2018 20:51:36 -0600
Subject: [PATCH 02/37] tracing: Add Documentation for log2 modifier
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add a line for the log2 modifier, to keep it aligned with
tracing/README.

2
debian/patches/features/all/rt/0002-tracing-Reverse-the-order-of-trace_types_lock-and-ev.patch vendored
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@ -2,7 +2,7 @@ From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Fri, 22 Sep 2017 14:58:16 -0500
Subject: [PATCH 02/42] tracing: Reverse the order of trace_types_lock and
event_mutex
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
In order to make future changes where we need to call
tracing_set_clock() from within an event command, the order of

2
debian/patches/features/all/rt/0003-hrtimer-Fix-kerneldoc-for-struct-hrtimer_cpu_base.patch vendored
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@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:52 +0100
Subject: [PATCH 03/29] hrtimer: Fix kerneldoc for struct hrtimer_cpu_base
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The sequence '/**' marks the start of a struct description. Add the
missing second asterisk. While at it adapt the ordering of the struct

4
debian/patches/features/all/rt/0003-tracing-Add-support-to-detect-and-avoid-duplicates.patch vendored
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@ -1,7 +1,7 @@
From: Vedang Patel <vedang.patel@intel.com>
Date: Thu, 21 Dec 2017 10:02:25 -0600
Date: Mon, 15 Jan 2018 20:51:37 -0600
Subject: [PATCH 03/37] tracing: Add support to detect and avoid duplicates
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
A duplicate in the tracing_map hash table is when 2 different entries
have the same key and, as a result, the key_hash. This is possible due

2
debian/patches/features/all/rt/0004-hrtimer-Cleanup-clock-argument-in-schedule_hrtimeout.patch vendored
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@ -2,7 +2,7 @@ From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:53 +0100
Subject: [PATCH 04/29] hrtimer: Cleanup clock argument in
schedule_hrtimeout_range_clock()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
schedule_hrtimeout_range_clock() uses an integer for the clock id
instead of the predefined type "clockid_t". The ID of the clock is

4
debian/patches/features/all/rt/0004-tracing-Remove-code-which-merges-duplicates.patch vendored
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@ -1,7 +1,7 @@
From: Vedang Patel <vedang.patel@intel.com>
Date: Thu, 21 Dec 2017 10:02:26 -0600
Date: Mon, 15 Jan 2018 20:51:38 -0600
Subject: [PATCH 04/37] tracing: Remove code which merges duplicates
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
We now have the logic to detect and remove duplicates in the
tracing_map hash table. The code which merges duplicates in the

2
debian/patches/features/all/rt/0004-tracing-Remove-lookups-from-tracing_map-hitcount.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Fri, 22 Sep 2017 14:58:18 -0500
Subject: [PATCH 04/42] tracing: Remove lookups from tracing_map hitcount
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Lookups inflate the hitcount, making it essentially useless. Only
inserts and updates should really affect the hitcount anyway, so

2
debian/patches/features/all/rt/0005-hrtimer-Fix-hrtimer-function-description.patch vendored
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@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:54 +0100
Subject: [PATCH 05/29] hrtimer: Fix hrtimer function description
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The hrtimer_start[_range_ns]() starts a timer reliable on this CPU only
when HRTIMER_MODE_PINNED is set. Furthermore the HRTIMER_MODE_PINNED mode

4
debian/patches/features/all/rt/0005-ring-buffer-Add-interface-for-setting-absolute-time-.patch vendored
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@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:27 -0600
Date: Mon, 15 Jan 2018 20:51:39 -0600
Subject: [PATCH 05/37] ring-buffer: Add interface for setting absolute time
stamps
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Define a new function, tracing_set_time_stamp_abs(), which can be used
to enable or disable the use of absolute timestamps rather than time

2
debian/patches/features/all/rt/0005-tracing-Increase-tracing-map-KEYS_MAX-size.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Fri, 22 Sep 2017 14:58:19 -0500
Subject: [PATCH 05/42] tracing: Increase tracing map KEYS_MAX size
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The current default for the number of subkeys in a compound key is 2,
which is too restrictive. Increase it to a more realistic value of 3.

2
debian/patches/features/all/rt/0006-hrtimer-Ensure-POSIX-compliance-relative-CLOCK_REALT.patch vendored
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@ -2,7 +2,7 @@ From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:55 +0100
Subject: [PATCH 06/29] hrtimer: Ensure POSIX compliance (relative
CLOCK_REALTIME hrtimers)
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
POSIX specification defines, that relative CLOCK_REALTIME timers are not
affected by clock modifications. Those timers have to use CLOCK_MONOTONIC

4
debian/patches/features/all/rt/0006-ring-buffer-Redefine-the-unimplemented-RINGBUF_TYPE_.patch vendored
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@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:28 -0600
Date: Mon, 15 Jan 2018 20:51:40 -0600
Subject: [PATCH 06/37] ring-buffer: Redefine the unimplemented
RINGBUF_TYPE_TIME_STAMP
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
RINGBUF_TYPE_TIME_STAMP is defined but not used, and from what I can
gather was reserved for something like an absolute timestamp feature

2
debian/patches/features/all/rt/0006-tracing-Make-traceprobe-parsing-code-reusable.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Fri, 22 Sep 2017 14:58:20 -0500
Subject: [PATCH 06/42] tracing: Make traceprobe parsing code reusable
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
traceprobe_probes_write() and traceprobe_command() actually contain
nothing that ties them to kprobes - the code is generically useful for

2
debian/patches/features/all/rt/0007-hrtimer-Cleanup-hrtimer_mode-enum.patch vendored
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@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:56 +0100
Subject: [PATCH 07/29] hrtimer: Cleanup hrtimer_mode enum
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
It's not obvious that the HRTIMER_MODE variants are bit combinations
because all modes are hard coded constants.

4
debian/patches/features/all/rt/0007-tracing-Add-timestamp_mode-trace-file.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:29 -0600
Date: Mon, 15 Jan 2018 20:51:41 -0600
Subject: [PATCH 07/37] tracing: Add timestamp_mode trace file
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add a new option flag indicating whether or not the ring buffer is in
'absolute timestamp' mode.

2
debian/patches/features/all/rt/0007-tracing-Clean-up-hist_field_flags-enum.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Fri, 22 Sep 2017 14:58:21 -0500
Subject: [PATCH 07/42] tracing: Clean up hist_field_flags enum
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
As we add more flags, specifying explicit integers for the flag values
becomes more unwieldy and error-prone - switch them over to left-shift

2
debian/patches/features/all/rt/0008-tracing-Add-hist_field_name-accessor.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Fri, 22 Sep 2017 14:58:22 -0500
Subject: [PATCH 08/42] tracing: Add hist_field_name() accessor
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
In preparation for hist_fields that won't be strictly based on
trace_event_fields, add a new hist_field_name() accessor to allow that

4
debian/patches/features/all/rt/0008-tracing-Give-event-triggers-access-to-ring_buffer_ev.patch vendored
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@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:30 -0600
Date: Mon, 15 Jan 2018 20:51:42 -0600
Subject: [PATCH 08/37] tracing: Give event triggers access to
ring_buffer_event
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The ring_buffer event can provide a timestamp that may be useful to
various triggers - pass it into the handlers for that purpose.

2
debian/patches/features/all/rt/0008-tracing-hrtimer-Take-all-clock-bases-and-modes-into-.patch vendored
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@ -2,7 +2,7 @@ From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:57 +0100
Subject: [PATCH 08/29] tracing/hrtimer: Take all clock bases and modes into
account
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
So far only CLOCK_MONOTONIC and CLOCK_REALTIME were taken into account as
well as HRTIMER_MODE_ABS/REL in hrtimer_init tracepoint. The query for

4
debian/patches/features/all/rt/0009-tracing-Add-ring-buffer-event-param-to-hist-field-fu.patch vendored
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@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:31 -0600
Date: Mon, 15 Jan 2018 20:51:43 -0600
Subject: [PATCH 09/37] tracing: Add ring buffer event param to hist field
functions
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Some events such as timestamps require access to a ring_buffer_event
struct; add a param so that hist field functions can access that.

2
debian/patches/features/all/rt/0009-tracing-Reimplement-log2.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Fri, 22 Sep 2017 14:58:23 -0500
Subject: [PATCH 09/42] tracing: Reimplement log2
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
log2 as currently implemented applies only to u64 trace_event_field
derived fields, and assumes that anything it's applied to is a u64

2
debian/patches/features/all/rt/0009-tracing-hrtimer-Print-hrtimer-mode-in-hrtimer_start-.patch vendored
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@ -2,7 +2,7 @@ From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:58 +0100
Subject: [PATCH 09/29] tracing/hrtimer: Print hrtimer mode in hrtimer_start
tracepoint
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The hrtimer_start tracepoint lacks the mode information. The mode is
important because consecutive starts can switch from ABS to REL or from

2
debian/patches/features/all/rt/0010-hrtimer-Switch-for-loop-to-_ffs-evaluation.patch vendored
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@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:12:59 +0100
Subject: [PATCH 10/29] hrtimer: Switch for loop to _ffs() evaluation
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Looping over all clock bases to find active bits is suboptimal if not all
bases are active.

4
debian/patches/features/all/rt/0010-tracing-Break-out-hist-trigger-assignment-parsing.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:32 -0600
Date: Mon, 15 Jan 2018 20:51:44 -0600
Subject: [PATCH 10/37] tracing: Break out hist trigger assignment parsing
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
This will make it easier to add variables, and makes the parsing code
cleaner regardless.

2
debian/patches/features/all/rt/0011-hrtimer-Store-running-timer-in-hrtimer_clock_base.patch vendored
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@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:00 +0100
Subject: [PATCH 11/29] hrtimer: Store running timer in hrtimer_clock_base
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The pointer to the currently running timer is stored in hrtimer_cpu_base
before the base lock is dropped and the callback is invoked.

4
debian/patches/features/all/rt/0011-tracing-Add-hist-trigger-timestamp-support.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:33 -0600
Date: Mon, 15 Jan 2018 20:51:45 -0600
Subject: [PATCH 11/37] tracing: Add hist trigger timestamp support
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add support for a timestamp event field. This is actually a 'pseudo-'
event field in that it behaves like it's part of the event record, but

2
debian/patches/features/all/rt/0012-hrtimer-Make-room-in-struct-hrtimer_cpu_base.patch vendored
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@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:01 +0100
Subject: [PATCH 12/29] hrtimer: Make room in struct hrtimer_cpu_base
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The upcoming softirq based hrtimers support requires an additional field in
the hrtimer_cpu_base struct, which would grow the struct size beyond a

4
debian/patches/features/all/rt/0012-tracing-Add-per-element-variable-support-to-tracing_.patch vendored
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@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:34 -0600
Date: Mon, 15 Jan 2018 20:51:46 -0600
Subject: [PATCH 12/37] tracing: Add per-element variable support to
tracing_map
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
In order to allow information to be passed between trace events, add
support for per-element variables to tracing_map. This provides a

2
debian/patches/features/all/rt/0013-hrtimer-Reduce-conditional-code-hres_active.patch vendored
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@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:02 +0100
Subject: [PATCH 13/29] hrtimer: Reduce conditional code (hres_active)
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The hrtimer_cpu_base struct has the CONFIG_HIGH_RES_TIMERS conditional
struct member hres_active. All related functions to this member are

4
debian/patches/features/all/rt/0013-tracing-Add-hist_data-member-to-hist_field.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:35 -0600
Date: Mon, 15 Jan 2018 20:51:47 -0600
Subject: [PATCH 13/37] tracing: Add hist_data member to hist_field
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Allow hist_data access via hist_field. Some users of hist_fields
require or will require more access to the associated hist_data.

2
debian/patches/features/all/rt/0014-hrtimer-Use-accesor-functions-instead-of-direct-acce.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:03 +0100
Subject: [PATCH 14/29] hrtimer: Use accesor functions instead of direct access
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
__hrtimer_hres_active() is now available unconditionally. Replace the
direct access to hrtimer_cpu_base.hres_active.

4
debian/patches/features/all/rt/0014-tracing-Add-usecs-modifier-for-hist-trigger-timestam.patch vendored
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@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:36 -0600
Date: Mon, 15 Jan 2018 20:51:48 -0600
Subject: [PATCH 14/37] tracing: Add usecs modifier for hist trigger timestamps
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Appending .usecs onto a common_timestamp field will cause the
timestamp value to be in microseconds instead of the default

2
debian/patches/features/all/rt/0015-hrtimer-Make-the-remote-enqueue-check-unconditional.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:04 +0100
Subject: [PATCH 15/29] hrtimer: Make the remote enqueue check unconditional
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
hrtimer_cpu_base.expires_next is used to cache the next event armed in the
timer hardware. The value is used to check whether an hrtimer can be

4
debian/patches/features/all/rt/0015-tracing-Add-variable-support-to-hist-triggers.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:37 -0600
Date: Mon, 15 Jan 2018 20:51:49 -0600
Subject: [PATCH 15/37] tracing: Add variable support to hist triggers
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add support for saving the value of a current event's event field by
assigning it to a variable that can be read by a subsequent event.

2
debian/patches/features/all/rt/0016-hrtimer-Make-hrtimer_cpu_base.next_timer-handling-un.patch vendored
View File

@ -2,7 +2,7 @@ From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:05 +0100
Subject: [PATCH 16/29] hrtimer: Make hrtimer_cpu_base.next_timer handling
unconditional
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
hrtimer_cpu_base.next_timer stores the pointer to the next expiring timer
in a cpu base.

4
debian/patches/features/all/rt/0016-tracing-Account-for-variables-in-named-trigger-compa.patch vendored
View File

@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:38 -0600
Date: Mon, 15 Jan 2018 20:51:50 -0600
Subject: [PATCH 16/37] tracing: Account for variables in named trigger
compatibility
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Named triggers must also have the same set of variables in order to be
considered compatible - update the trigger match test to account for

2
debian/patches/features/all/rt/0017-hrtimer-Make-hrtimer_reprogramm-unconditional.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:06 +0100
Subject: [PATCH 17/29] hrtimer: Make hrtimer_reprogramm() unconditional
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
hrtimer_reprogram() needs to be available unconditionally for softirq based
hrtimers. Move the function and all required struct members out of the

4
debian/patches/features/all/rt/0017-tracing-Move-get_hist_field_flags.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:39 -0600
Date: Mon, 15 Jan 2018 20:51:51 -0600
Subject: [PATCH 17/37] tracing: Move get_hist_field_flags()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Move get_hist_field_flags() to make it more easily accessible for new
code (and keep the move separate from new functionality).

2
debian/patches/features/all/rt/0018-hrtimer-Make-hrtimer_force_reprogramm-unconditionall.patch vendored
View File

@ -2,7 +2,7 @@ From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:07 +0100
Subject: [PATCH 18/29] hrtimer: Make hrtimer_force_reprogramm()
unconditionally available
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
hrtimer_force_reprogram() needs to be available unconditionally for softirq
based hrtimers. Move the function and all required struct members out of

96
debian/patches/features/all/rt/0018-tracing-Add-simple-expression-support-to-hist-trigge.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:40 -0600
Date: Mon, 15 Jan 2018 20:51:52 -0600
Subject: [PATCH 18/37] tracing: Add simple expression support to hist triggers
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add support for simple addition, subtraction, and unary expressions
(-(expr) and expr, where expr = b-a, a+b, a+b+c) to hist triggers, in
@ -15,10 +15,12 @@ In the process, factor out some common code from key and value
parsing.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
[kbuild test robot fix, add static to parse_atom()]
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
kernel/trace/trace_events_hist.c | 482 +++++++++++++++++++++++++++++++++------
1 file changed, 409 insertions(+), 73 deletions(-)
kernel/trace/trace_events_hist.c | 487 +++++++++++++++++++++++++++++++++------
1 file changed, 413 insertions(+), 74 deletions(-)
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@ -104,10 +106,24 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (field_name == NULL)
field_name = "";
@@ -519,6 +566,95 @@ static const char *get_hist_field_flags(
@@ -519,12 +566,104 @@ static const char *get_hist_field_flags(
return flags_str;
}
+static void expr_field_str(struct hist_field *field, char *expr)
+{
+ strcat(expr, hist_field_name(field, 0));
+
+ if (field->flags) {
+ const char *flags_str = get_hist_field_flags(field);
+
+ if (flags_str) {
+ strcat(expr, ".");
+ strcat(expr, flags_str);
+ }
+ }
+}
+
+static char *expr_str(struct hist_field *field, unsigned int level)
+{
+ char *expr;
@ -119,6 +135,11 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ if (!expr)
+ return NULL;
+
+ if (!field->operands[0]) {
+ expr_field_str(field, expr);
+ return expr;
+ }
+
+ if (field->operator == FIELD_OP_UNARY_MINUS) {
+ char *subexpr;
+
@ -136,15 +157,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ return expr;
+ }
+
+ strcat(expr, hist_field_name(field->operands[0], 0));
+ if (field->operands[0]->flags) {
+ const char *flags_str = get_hist_field_flags(field->operands[0]);
+
+ if (flags_str) {
+ strcat(expr, ".");
+ strcat(expr, flags_str);
+ }
+ }
+ expr_field_str(field->operands[0], expr);
+
+ switch (field->operator) {
+ case FIELD_OP_MINUS:
@ -158,15 +171,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ return NULL;
+ }
+
+ strcat(expr, hist_field_name(field->operands[1], 0));
+ if (field->operands[1]->flags) {
+ const char *flags_str = get_hist_field_flags(field->operands[1]);
+
+ if (flags_str) {
+ strcat(expr, ".");
+ strcat(expr, flags_str);
+ }
+ }
+ expr_field_str(field->operands[1], expr);
+
+ return expr;
+}
@ -200,7 +205,14 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static void destroy_hist_field(struct hist_field *hist_field,
unsigned int level)
{
@@ -534,6 +670,7 @@ static void destroy_hist_field(struct hi
unsigned int i;
- if (level > 2)
+ if (level > 3)
return;
if (!hist_field)
@@ -534,6 +673,7 @@ static void destroy_hist_field(struct hi
destroy_hist_field(hist_field->operands[i], level + 1);
kfree(hist_field->var.name);
@ -208,7 +220,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
kfree(hist_field);
}
@@ -554,6 +691,9 @@ static struct hist_field *create_hist_fi
@@ -554,6 +694,9 @@ static struct hist_field *create_hist_fi
hist_field->hist_data = hist_data;
@ -218,7 +230,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (flags & HIST_FIELD_FL_HITCOUNT) {
hist_field->fn = hist_field_counter;
goto out;
@@ -626,6 +766,257 @@ static void destroy_hist_fields(struct h
@@ -626,6 +769,257 @@ static void destroy_hist_fields(struct h
}
}
@ -274,9 +286,9 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ return field;
+}
+
+struct hist_field *parse_atom(struct hist_trigger_data *hist_data,
+ struct trace_event_file *file, char *str,
+ unsigned long *flags, char *var_name)
+static struct hist_field *parse_atom(struct hist_trigger_data *hist_data,
+ struct trace_event_file *file, char *str,
+ unsigned long *flags, char *var_name)
+{
+ struct ftrace_event_field *field = NULL;
+ struct hist_field *hist_field = NULL;
@ -316,7 +328,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+
+ // we support only -(xxx) i.e. explicit parens required
+
+ if (level > 2) {
+ if (level > 3) {
+ ret = -EINVAL;
+ goto free;
+ }
@ -331,7 +343,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ goto free;
+ }
+
+ s = strchr(str, ')');
+ s = strrchr(str, ')');
+ if (s)
+ *s = '\0';
+ else {
@ -339,12 +351,6 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ goto free;
+ }
+
+ strsep(&str, "(");
+ if (!str) {
+ ret = -EINVAL;
+ goto free;
+ }
+
+ flags |= HIST_FIELD_FL_EXPR;
+ expr = create_hist_field(hist_data, NULL, flags, var_name);
+ if (!expr) {
@ -359,6 +365,8 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ goto free;
+ }
+
+ expr->flags |= operand1->flags &
+ (HIST_FIELD_FL_TIMESTAMP | HIST_FIELD_FL_TIMESTAMP_USECS);
+ expr->fn = hist_field_unary_minus;
+ expr->operands[0] = operand1;
+ expr->operator = FIELD_OP_UNARY_MINUS;
@ -393,7 +401,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ int field_op, ret = -EINVAL;
+ char *sep, *operand1_str;
+
+ if (level > 2)
+ if (level > 3)
+ return ERR_PTR(-EINVAL);
+
+ field_op = contains_operator(str);
@ -442,6 +450,10 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ goto free;
+
+ flags |= HIST_FIELD_FL_EXPR;
+
+ flags |= operand1->flags &
+ (HIST_FIELD_FL_TIMESTAMP | HIST_FIELD_FL_TIMESTAMP_USECS);
+
+ expr = create_hist_field(hist_data, NULL, flags, var_name);
+ if (!expr) {
+ ret = -ENOMEM;
@ -476,7 +488,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static int create_hitcount_val(struct hist_trigger_data *hist_data)
{
hist_data->fields[HITCOUNT_IDX] =
@@ -648,37 +1039,17 @@ static int __create_val_field(struct his
@@ -648,37 +1042,17 @@ static int __create_val_field(struct his
char *var_name, char *field_str,
unsigned long flags)
{
@ -520,7 +532,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
++hist_data->n_vals;
++hist_data->n_fields;
@@ -765,8 +1136,8 @@ static int create_key_field(struct hist_
@@ -765,8 +1139,8 @@ static int create_key_field(struct hist_
struct trace_event_file *file,
char *field_str)
{
@ -530,7 +542,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
unsigned long flags = 0;
unsigned int key_size;
int ret = 0;
@@ -781,60 +1152,24 @@ static int create_key_field(struct hist_
@@ -781,60 +1155,24 @@ static int create_key_field(struct hist_
key_size = sizeof(unsigned long) * HIST_STACKTRACE_DEPTH;
hist_field = create_hist_field(hist_data, NULL, flags, NULL);
} else {
@ -600,7 +612,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (hist_data->key_size > HIST_KEY_SIZE_MAX) {
ret = -EINVAL;
goto out;
@@ -1419,7 +1754,8 @@ hist_trigger_entry_print(struct seq_file
@@ -1419,7 +1757,8 @@ hist_trigger_entry_print(struct seq_file
for (i = 1; i < hist_data->n_vals; i++) {
field_name = hist_field_name(hist_data->fields[i], 0);

2
debian/patches/features/all/rt/0019-hrtimer-Unify-handling-of-hrtimer-remove.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:08 +0100
Subject: [PATCH 19/29] hrtimer: Unify handling of hrtimer remove
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
When the first hrtimer on the current CPU is removed,
hrtimer_force_reprogram() is invoked but only when

10
debian/patches/features/all/rt/0019-tracing-Generalize-per-element-hist-trigger-data.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:41 -0600
Date: Mon, 15 Jan 2018 20:51:53 -0600
Subject: [PATCH 19/37] tracing: Generalize per-element hist trigger data
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Up until now, hist triggers only needed per-element support for saving
'comm' data, which was saved directly as a private data pointer.
@ -106,7 +106,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
};
static const char *get_hist_field_flags(struct hist_field *hist_field)
@@ -1481,21 +1501,6 @@ static int create_tracing_map_fields(str
@@ -1484,21 +1504,6 @@ static int create_tracing_map_fields(str
return 0;
}
@ -128,7 +128,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static struct hist_trigger_data *
create_hist_data(unsigned int map_bits,
struct hist_trigger_attrs *attrs,
@@ -1521,8 +1526,7 @@ create_hist_data(unsigned int map_bits,
@@ -1524,8 +1529,7 @@ create_hist_data(unsigned int map_bits,
if (ret)
goto free;
@ -138,7 +138,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
hist_data->map = tracing_map_create(map_bits, hist_data->key_size,
map_ops, hist_data);
@@ -1710,7 +1714,13 @@ hist_trigger_entry_print(struct seq_file
@@ -1713,7 +1717,13 @@ hist_trigger_entry_print(struct seq_file
seq_printf(m, "%s: [%llx] %-55s", field_name,
uval, str);
} else if (key_field->flags & HIST_FIELD_FL_EXECNAME) {

2
debian/patches/features/all/rt/0020-hrtimer-Unify-handling-of-remote-enqueue.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:09 +0100
Subject: [PATCH 20/29] hrtimer: Unify handling of remote enqueue
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
hrtimer_reprogram() is conditionally invoked from hrtimer_start_range_ns()
when hrtimer_cpu_base.hres_active is true.

12
debian/patches/features/all/rt/0020-tracing-Pass-tracing_map_elt-to-hist_field-accessor-.patch vendored
View File

@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:42 -0600
Date: Mon, 15 Jan 2018 20:51:54 -0600
Subject: [PATCH 20/37] tracing: Pass tracing_map_elt to hist_field accessor
functions
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Some accessor functions, such as for variable references, require
access to a corrsponding tracing_map_elt.
@ -182,7 +182,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
{
struct hist_trigger_data *hist_data = hist_field->hist_data;
struct trace_array *tr = hist_data->event_file->tr;
@@ -1567,7 +1590,7 @@ static void hist_trigger_elt_update(stru
@@ -1570,7 +1593,7 @@ static void hist_trigger_elt_update(stru
for_each_hist_val_field(i, hist_data) {
hist_field = hist_data->fields[i];
@ -191,7 +191,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (hist_field->flags & HIST_FIELD_FL_VAR) {
var_idx = hist_field->var.idx;
tracing_map_set_var(elt, var_idx, hist_val);
@@ -1579,7 +1602,7 @@ static void hist_trigger_elt_update(stru
@@ -1582,7 +1605,7 @@ static void hist_trigger_elt_update(stru
for_each_hist_key_field(i, hist_data) {
hist_field = hist_data->fields[i];
if (hist_field->flags & HIST_FIELD_FL_VAR) {
@ -200,7 +200,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
var_idx = hist_field->var.idx;
tracing_map_set_var(elt, var_idx, hist_val);
}
@@ -1617,9 +1640,9 @@ static void event_hist_trigger(struct ev
@@ -1620,9 +1643,9 @@ static void event_hist_trigger(struct ev
bool use_compound_key = (hist_data->n_keys > 1);
unsigned long entries[HIST_STACKTRACE_DEPTH];
char compound_key[HIST_KEY_SIZE_MAX];
@ -211,7 +211,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
u64 field_contents;
void *key = NULL;
unsigned int i;
@@ -1640,7 +1663,7 @@ static void event_hist_trigger(struct ev
@@ -1643,7 +1666,7 @@ static void event_hist_trigger(struct ev
key = entries;
} else {

2
debian/patches/features/all/rt/0021-hrtimer-Make-remote-enqueue-decision-less-restrictiv.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:10 +0100
Subject: [PATCH 21/29] hrtimer: Make remote enqueue decision less restrictive
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The current decision whether a timer can be queued on a remote CPU checks
for timer->expiry <= remote_cpu_base.expires_next.

18
debian/patches/features/all/rt/0021-tracing-Add-hist_field-type-field.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:43 -0600
Date: Mon, 15 Jan 2018 20:51:55 -0600
Subject: [PATCH 21/37] tracing: Add hist_field 'type' field
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Future support for synthetic events requires hist_field 'type'
information, so add a field for that.
@ -25,7 +25,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
struct hist_field *operands[HIST_FIELD_OPERANDS_MAX];
struct hist_trigger_data *hist_data;
struct hist_var var;
@@ -714,6 +715,7 @@ static void destroy_hist_field(struct hi
@@ -717,6 +718,7 @@ static void destroy_hist_field(struct hi
kfree(hist_field->var.name);
kfree(hist_field->name);
@ -33,7 +33,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
kfree(hist_field);
}
@@ -739,6 +741,10 @@ static struct hist_field *create_hist_fi
@@ -742,6 +744,10 @@ static struct hist_field *create_hist_fi
if (flags & HIST_FIELD_FL_HITCOUNT) {
hist_field->fn = hist_field_counter;
@ -44,7 +44,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
goto out;
}
@@ -752,12 +758,18 @@ static struct hist_field *create_hist_fi
@@ -755,12 +761,18 @@ static struct hist_field *create_hist_fi
hist_field->fn = hist_field_log2;
hist_field->operands[0] = create_hist_field(hist_data, field, fl, NULL);
hist_field->size = hist_field->operands[0]->size;
@ -63,7 +63,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
goto out;
}
@@ -767,6 +779,11 @@ static struct hist_field *create_hist_fi
@@ -770,6 +782,11 @@ static struct hist_field *create_hist_fi
if (is_string_field(field)) {
flags |= HIST_FIELD_FL_STRING;
@ -75,7 +75,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (field->filter_type == FILTER_STATIC_STRING)
hist_field->fn = hist_field_string;
else if (field->filter_type == FILTER_DYN_STRING)
@@ -774,6 +791,12 @@ static struct hist_field *create_hist_fi
@@ -777,6 +794,12 @@ static struct hist_field *create_hist_fi
else
hist_field->fn = hist_field_pstring;
} else {
@ -88,7 +88,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
hist_field->fn = select_value_fn(field->size,
field->is_signed);
if (!hist_field->fn) {
@@ -950,6 +973,11 @@ static struct hist_field *parse_unary(st
@@ -949,6 +972,11 @@ static struct hist_field *parse_unary(st
expr->operands[0] = operand1;
expr->operator = FIELD_OP_UNARY_MINUS;
expr->name = expr_str(expr, 0);
@ -100,7 +100,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return expr;
free:
@@ -1039,6 +1067,11 @@ static struct hist_field *parse_expr(str
@@ -1042,6 +1070,11 @@ static struct hist_field *parse_expr(str
expr->operands[1] = operand2;
expr->operator = field_op;
expr->name = expr_str(expr, 0);

2
debian/patches/features/all/rt/0022-hrtimer-Remove-base-argument-from-hrtimer_reprogram.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:11 +0100
Subject: [PATCH 22/29] hrtimer: Remove base argument from hrtimer_reprogram()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
hrtimer_reprogram() must have access to the hrtimer_clock_base of the new
first expiring timer to access hrtimer_clock_base.offset for adjusting the

72
debian/patches/features/all/rt/0022-tracing-Add-variable-reference-handling-to-hist-trig.patch vendored
View File

@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:44 -0600
Date: Mon, 15 Jan 2018 20:51:56 -0600
Subject: [PATCH 22/37] tracing: Add variable reference handling to hist
triggers
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add the necessary infrastructure to allow the variables defined on one
event to be referenced in another. This allows variables set by a
@ -27,9 +27,9 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
kernel/trace/trace.c | 2
kernel/trace/trace.h | 3
kernel/trace/trace_events_hist.c | 660 +++++++++++++++++++++++++++++++++++-
kernel/trace/trace_events_hist.c | 661 +++++++++++++++++++++++++++++++++++-
kernel/trace/trace_events_trigger.c | 6
4 files changed, 655 insertions(+), 16 deletions(-)
4 files changed, 656 insertions(+), 16 deletions(-)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@ -136,7 +136,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ struct hist_field *found = NULL;
+ unsigned int i;
+
+ if (level > 2)
+ if (level > 3)
+ return found;
+
+ if (!hist_field)
@ -234,7 +234,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+{
+ int i;
+
+ if (level > 2)
+ if (level > 3)
+ return false;
+
+ if (!hist_field)
@ -476,25 +476,17 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (field_name == NULL)
field_name = "";
@@ -638,6 +993,8 @@ static char *expr_str(struct hist_field
return expr;
}
@@ -612,6 +967,9 @@ static const char *get_hist_field_flags(
+ if (field->operands[0]->flags & HIST_FIELD_FL_VAR_REF)
static void expr_field_str(struct hist_field *field, char *expr)
{
+ if (field->flags & HIST_FIELD_FL_VAR_REF)
+ strcat(expr, "$");
strcat(expr, hist_field_name(field->operands[0], 0));
if (field->operands[0]->flags) {
const char *flags_str = get_hist_field_flags(field->operands[0]);
@@ -660,6 +1017,8 @@ static char *expr_str(struct hist_field
return NULL;
}
+
strcat(expr, hist_field_name(field, 0));
+ if (field->operands[1]->flags & HIST_FIELD_FL_VAR_REF)
+ strcat(expr, "$");
strcat(expr, hist_field_name(field->operands[1], 0));
if (field->operands[1]->flags) {
const char *flags_str = get_hist_field_flags(field->operands[1]);
@@ -739,6 +1098,11 @@ static struct hist_field *create_hist_fi
if (field->flags) {
@@ -742,6 +1100,11 @@ static struct hist_field *create_hist_fi
if (flags & HIST_FIELD_FL_EXPR)
goto out; /* caller will populate */
@ -506,7 +498,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (flags & HIST_FIELD_FL_HITCOUNT) {
hist_field->fn = hist_field_counter;
hist_field->size = sizeof(u64);
@@ -832,6 +1196,142 @@ static void destroy_hist_fields(struct h
@@ -835,6 +1198,144 @@ static void destroy_hist_fields(struct h
}
}
@ -520,6 +512,8 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ ref_field->var.hist_data = var_field->hist_data;
+ ref_field->size = var_field->size;
+ ref_field->is_signed = var_field->is_signed;
+ ref_field->flags |= var_field->flags &
+ (HIST_FIELD_FL_TIMESTAMP | HIST_FIELD_FL_TIMESTAMP_USECS);
+
+ if (system) {
+ ref_field->system = kstrdup(system, GFP_KERNEL);
@ -649,9 +643,9 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static struct ftrace_event_field *
parse_field(struct hist_trigger_data *hist_data, struct trace_event_file *file,
char *field_str, unsigned long *flags)
@@ -888,10 +1388,40 @@ struct hist_field *parse_atom(struct his
struct trace_event_file *file, char *str,
unsigned long *flags, char *var_name)
@@ -891,10 +1392,40 @@ static struct hist_field *parse_atom(str
struct trace_event_file *file, char *str,
unsigned long *flags, char *var_name)
{
+ char *s, *ref_system = NULL, *ref_event = NULL, *ref_var = str;
struct ftrace_event_field *field = NULL;
@ -690,7 +684,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
field = parse_field(hist_data, file, str, flags);
if (IS_ERR(field)) {
ret = PTR_ERR(field);
@@ -1063,6 +1593,9 @@ static struct hist_field *parse_expr(str
@@ -1066,6 +1597,9 @@ static struct hist_field *parse_expr(str
goto free;
}
@ -700,7 +694,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
expr->operands[0] = operand1;
expr->operands[1] = operand2;
expr->operator = field_op;
@@ -1235,6 +1768,12 @@ static int create_key_field(struct hist_
@@ -1238,6 +1772,12 @@ static int create_key_field(struct hist_
goto out;
}
@ -713,7 +707,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
key_size = hist_field->size;
}
@@ -1573,6 +2112,7 @@ create_hist_data(unsigned int map_bits,
@@ -1576,6 +2116,7 @@ create_hist_data(unsigned int map_bits,
hist_data->attrs = attrs;
hist_data->remove = remove;
@ -721,7 +715,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = create_hist_fields(hist_data, file);
if (ret)
@@ -1595,12 +2135,6 @@ create_hist_data(unsigned int map_bits,
@@ -1598,12 +2139,6 @@ create_hist_data(unsigned int map_bits,
ret = create_tracing_map_fields(hist_data);
if (ret)
goto free;
@ -734,7 +728,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
out:
return hist_data;
free:
@@ -1615,12 +2149,17 @@ create_hist_data(unsigned int map_bits,
@@ -1618,12 +2153,17 @@ create_hist_data(unsigned int map_bits,
static void hist_trigger_elt_update(struct hist_trigger_data *hist_data,
struct tracing_map_elt *elt, void *rec,
@ -753,7 +747,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
for_each_hist_val_field(i, hist_data) {
hist_field = hist_data->fields[i];
hist_val = hist_field->fn(hist_field, elt, rbe, rec);
@@ -1672,6 +2211,7 @@ static void event_hist_trigger(struct ev
@@ -1675,6 +2215,7 @@ static void event_hist_trigger(struct ev
struct hist_trigger_data *hist_data = data->private_data;
bool use_compound_key = (hist_data->n_keys > 1);
unsigned long entries[HIST_STACKTRACE_DEPTH];
@ -761,7 +755,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
char compound_key[HIST_KEY_SIZE_MAX];
struct tracing_map_elt *elt = NULL;
struct stack_trace stacktrace;
@@ -1711,9 +2251,15 @@ static void event_hist_trigger(struct ev
@@ -1714,9 +2255,15 @@ static void event_hist_trigger(struct ev
if (use_compound_key)
key = compound_key;
@ -779,7 +773,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
}
static void hist_trigger_stacktrace_print(struct seq_file *m,
@@ -1930,8 +2476,11 @@ static void hist_field_print(struct seq_
@@ -1933,8 +2480,11 @@ static void hist_field_print(struct seq_
if (hist_field->flags & HIST_FIELD_FL_TIMESTAMP)
seq_puts(m, "common_timestamp");
@ -792,7 +786,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (hist_field->flags) {
const char *flags_str = get_hist_field_flags(hist_field);
@@ -2071,7 +2620,11 @@ static void event_hist_trigger_free(stru
@@ -2074,7 +2624,11 @@ static void event_hist_trigger_free(stru
if (!data->ref) {
if (data->name)
del_named_trigger(data);
@ -804,7 +798,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
destroy_hist_data(hist_data);
}
}
@@ -2284,23 +2837,55 @@ static int hist_register_trigger(char *g
@@ -2287,23 +2841,55 @@ static int hist_register_trigger(char *g
goto out;
}
@ -864,7 +858,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static void hist_unregister_trigger(char *glob, struct event_trigger_ops *ops,
struct event_trigger_data *data,
struct trace_event_file *file)
@@ -2333,11 +2918,30 @@ static void hist_unregister_trigger(char
@@ -2336,11 +2922,30 @@ static void hist_unregister_trigger(char
}
}
@ -895,7 +889,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
list_for_each_entry_safe(test, n, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
hist_data = test->private_data;
@@ -2413,6 +3017,11 @@ static int event_hist_trigger_func(struc
@@ -2416,6 +3021,11 @@ static int event_hist_trigger_func(struc
}
if (remove) {
@ -907,7 +901,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
cmd_ops->unreg(glob+1, trigger_ops, trigger_data, file);
ret = 0;
goto out_free;
@@ -2430,14 +3039,33 @@ static int event_hist_trigger_func(struc
@@ -2433,14 +3043,33 @@ static int event_hist_trigger_func(struc
goto out_free;
} else if (ret < 0)
goto out_free;

2
debian/patches/features/all/rt/0023-hrtimer-Split-hrtimer_start_range_ns.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:12 +0100
Subject: [PATCH 23/29] hrtimer: Split hrtimer_start_range_ns()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Preparatory patch for softirq based hrtimers to avoid code duplication. No
functional change.

14
debian/patches/features/all/rt/0023-tracing-Add-hist-trigger-action-hook.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:45 -0600
Date: Mon, 15 Jan 2018 20:51:57 -0600
Subject: [PATCH 23/37] tracing: Add hist trigger action hook
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add a hook for executing extra actions whenever a histogram entry is
added or updated.
@ -101,7 +101,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
}
}
@@ -2043,11 +2076,55 @@ static int create_sort_keys(struct hist_
@@ -2047,11 +2080,55 @@ static int create_sort_keys(struct hist_
return ret;
}
@ -157,7 +157,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
kfree(hist_data);
}
@@ -2114,6 +2191,10 @@ create_hist_data(unsigned int map_bits,
@@ -2118,6 +2195,10 @@ create_hist_data(unsigned int map_bits,
hist_data->remove = remove;
hist_data->event_file = file;
@ -168,7 +168,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = create_hist_fields(hist_data, file);
if (ret)
goto free;
@@ -2205,6 +2286,20 @@ static inline void add_to_key(char *comp
@@ -2209,6 +2290,20 @@ static inline void add_to_key(char *comp
memcpy(compound_key + key_field->offset, key, size);
}
@ -189,7 +189,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static void event_hist_trigger(struct event_trigger_data *data, void *rec,
struct ring_buffer_event *rbe)
{
@@ -2260,6 +2355,9 @@ static void event_hist_trigger(struct ev
@@ -2264,6 +2359,9 @@ static void event_hist_trigger(struct ev
return;
hist_trigger_elt_update(hist_data, elt, rec, rbe, var_ref_vals);
@ -199,7 +199,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
}
static void hist_trigger_stacktrace_print(struct seq_file *m,
@@ -3046,6 +3144,10 @@ static int event_hist_trigger_func(struc
@@ -3050,6 +3148,10 @@ static int event_hist_trigger_func(struc
if (has_hist_vars(hist_data))
save_hist_vars(hist_data);

2
debian/patches/features/all/rt/0024-hrtimer-Split-__hrtimer_get_next_event.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:13 +0100
Subject: [PATCH 24/29] hrtimer: Split __hrtimer_get_next_event()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Preparatory patch for softirq based hrtimers to avoid code duplication. No
functional change.

34
debian/patches/features/all/rt/0024-tracing-Add-support-for-synthetic-events.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:46 -0600
Date: Mon, 15 Jan 2018 20:51:58 -0600
Subject: [PATCH 24/37] tracing: Add support for 'synthetic' events
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Synthetic events are user-defined events generated from hist trigger
variables saved from one or more other events.
@ -50,8 +50,8 @@ Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
kernel/trace/trace_events_hist.c | 899 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 897 insertions(+), 2 deletions(-)
kernel/trace/trace_events_hist.c | 895 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 893 insertions(+), 2 deletions(-)
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@ -99,7 +99,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
struct action_data;
typedef void (*action_fn_t) (struct hist_trigger_data *hist_data,
@@ -282,6 +308,794 @@ struct action_data {
@@ -282,6 +308,790 @@ struct action_data {
unsigned int var_ref_idx;
};
@ -785,7 +785,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+{
+ struct list_head release_events;
+ struct synth_event *event, *e;
+ int ret = 0, err = 0;
+ int ret = 0;
+
+ INIT_LIST_HEAD(&release_events);
+
@ -798,8 +798,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ }
+ }
+
+ list_for_each_entry_safe(event, e, &synth_event_list, list)
+ list_move(&event->list, &release_events);
+ list_splice_init(&event->list, &release_events);
+
+ mutex_unlock(&synth_event_mutex);
+
@ -810,9 +809,6 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ add_or_delete_synth_event(event, !ret);
+ }
+
+ if (err)
+ ret = err;
+
+ return ret;
+}
+
@ -894,7 +890,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static u64 hist_field_timestamp(struct hist_field *hist_field,
struct tracing_map_elt *elt,
struct ring_buffer_event *rbe,
@@ -2961,6 +3775,28 @@ static int hist_trigger_enable(struct ev
@@ -2965,6 +3775,28 @@ static int hist_trigger_enable(struct ev
return ret;
}
@ -923,7 +919,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static bool hist_trigger_check_refs(struct event_trigger_data *data,
struct trace_event_file *file)
{
@@ -3036,6 +3872,8 @@ static void hist_unreg_all(struct trace_
@@ -3040,6 +3872,8 @@ static void hist_unreg_all(struct trace_
{
struct event_trigger_data *test, *n;
struct hist_trigger_data *hist_data;
@ -932,7 +928,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (hist_file_check_refs(file))
return;
@@ -3045,6 +3883,14 @@ static void hist_unreg_all(struct trace_
@@ -3049,6 +3883,14 @@ static void hist_unreg_all(struct trace_
hist_data = test->private_data;
list_del_rcu(&test->list);
trace_event_trigger_enable_disable(file, 0);
@ -947,7 +943,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
update_cond_flag(file);
if (hist_data->enable_timestamps)
tracing_set_time_stamp_abs(file->tr, false);
@@ -3063,6 +3909,8 @@ static int event_hist_trigger_func(struc
@@ -3067,6 +3909,8 @@ static int event_hist_trigger_func(struc
struct hist_trigger_attrs *attrs;
struct event_trigger_ops *trigger_ops;
struct hist_trigger_data *hist_data;
@ -956,7 +952,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
bool remove = false;
char *trigger;
int ret = 0;
@@ -3093,10 +3941,11 @@ static int event_hist_trigger_func(struc
@@ -3097,10 +3941,11 @@ static int event_hist_trigger_func(struc
trigger_ops = cmd_ops->get_trigger_ops(cmd, trigger);
@ -970,7 +966,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
trigger_data->count = -1;
trigger_data->ops = trigger_ops;
@@ -3115,12 +3964,23 @@ static int event_hist_trigger_func(struc
@@ -3119,12 +3964,23 @@ static int event_hist_trigger_func(struc
}
if (remove) {
@ -994,7 +990,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = 0;
goto out_free;
}
@@ -3156,6 +4016,13 @@ static int event_hist_trigger_func(struc
@@ -3160,6 +4016,13 @@ static int event_hist_trigger_func(struc
if (ret)
goto out_unreg;
@ -1008,7 +1004,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
/* Just return zero, not the number of registered triggers */
ret = 0;
out:
@@ -3328,3 +4195,31 @@ static __init void unregister_trigger_hi
@@ -3332,3 +4195,31 @@ static __init void unregister_trigger_hi
return ret;
}

2
debian/patches/features/all/rt/0025-hrtimer-Use-irqsave-irqrestore-around-__run_hrtimer.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:14 +0100
Subject: [PATCH 25/29] hrtimer: Use irqsave/irqrestore around __run_hrtimer()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
__run_hrtimer() is called with the hrtimer_cpu_base.lock held and
interrupts disabled. Before invoking the timer callback the base lock is

12
debian/patches/features/all/rt/0025-tracing-Add-support-for-field-variables.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:47 -0600
Date: Mon, 15 Jan 2018 20:51:59 -0600
Subject: [PATCH 25/37] tracing: Add support for 'field variables'
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Users should be able to directly specify event fields in hist trigger
'actions' rather than being forced to explicitly create a variable for
@ -76,7 +76,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
};
struct synth_field {
@@ -1431,6 +1447,7 @@ static struct hist_field *find_event_var
@@ -1427,6 +1443,7 @@ static struct hist_field *find_event_var
struct hist_elt_data {
char *comm;
u64 *var_ref_vals;
@ -84,7 +84,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
};
static u64 hist_field_var_ref(struct hist_field *hist_field,
@@ -1735,6 +1752,11 @@ static inline void save_comm(char *comm,
@@ -1731,6 +1748,11 @@ static inline void save_comm(char *comm,
static void hist_elt_data_free(struct hist_elt_data *elt_data)
{
@ -96,7 +96,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
kfree(elt_data->comm);
kfree(elt_data);
}
@@ -1752,7 +1774,7 @@ static int hist_trigger_elt_data_alloc(s
@@ -1748,7 +1770,7 @@ static int hist_trigger_elt_data_alloc(s
unsigned int size = TASK_COMM_LEN;
struct hist_elt_data *elt_data;
struct hist_field *key_field;
@ -105,7 +105,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
elt_data = kzalloc(sizeof(*elt_data), GFP_KERNEL);
if (!elt_data)
@@ -1771,6 +1793,18 @@ static int hist_trigger_elt_data_alloc(s
@@ -1767,6 +1789,18 @@ static int hist_trigger_elt_data_alloc(s
}
}

2
debian/patches/features/all/rt/0026-hrtimer-Add-clock-bases-and-hrtimer-mode-for-soft-ir.patch vendored
View File

@ -2,7 +2,7 @@ From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:15 +0100
Subject: [PATCH 26/29] hrtimer: Add clock bases and hrtimer mode for soft irq
context
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
hrtimer callback functions are always executed in hard interrupt
context. Users of hrtimer which need their timer function to be executed

14
debian/patches/features/all/rt/0026-tracing-Add-onmatch-hist-trigger-action-support.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:48 -0600
Date: Mon, 15 Jan 2018 20:52:00 -0600
Subject: [PATCH 26/37] tracing: Add 'onmatch' hist trigger action support
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add an 'onmatch(matching.event).<synthetic_event_name>(param list)'
hist trigger action which is invoked with the set of variables or
@ -99,7 +99,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static void add_or_delete_synth_event(struct synth_event *event, int delete)
{
if (delete)
@@ -1128,11 +1156,6 @@ static u64 hist_field_timestamp(struct h
@@ -1124,11 +1152,6 @@ static u64 hist_field_timestamp(struct h
return ts;
}
@ -111,7 +111,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static struct hist_field *
check_field_for_var_ref(struct hist_field *hist_field,
struct hist_trigger_data *var_data,
@@ -1198,6 +1221,14 @@ static struct hist_field *find_var_ref(s
@@ -1194,6 +1217,14 @@ static struct hist_field *find_var_ref(s
return found;
}
@ -126,7 +126,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return found;
}
@@ -1426,6 +1457,37 @@ static struct hist_field *find_file_var(
@@ -1422,6 +1453,37 @@ static struct hist_field *find_file_var(
return NULL;
}
@ -164,7 +164,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static struct hist_field *find_event_var(struct hist_trigger_data *hist_data,
char *system,
char *event_name,
@@ -1435,6 +1497,14 @@ static struct hist_field *find_event_var
@@ -1431,6 +1493,14 @@ static struct hist_field *find_event_var
struct hist_field *hist_field = NULL;
struct trace_event_file *file;
@ -179,7 +179,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
file = find_var_file(tr, system, event_name, var_name);
if (!file)
return NULL;
@@ -1626,11 +1696,21 @@ static void destroy_hist_trigger_attrs(s
@@ -1622,11 +1692,21 @@ static void destroy_hist_trigger_attrs(s
static int parse_action(char *str, struct hist_trigger_attrs *attrs)
{

2
debian/patches/features/all/rt/0027-hrtimer-Prepare-handling-of-hard-and-softirq-based-h.patch vendored
View File

@ -2,7 +2,7 @@ From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:16 +0100
Subject: [PATCH 27/29] hrtimer: Prepare handling of hard and softirq based
hrtimers
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The softirq based hrtimer can utilize most of the existing hrtimers
functions, but need to operate on a different data set.

8
debian/patches/features/all/rt/0027-tracing-Add-onmax-hist-trigger-action-support.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:49 -0600
Date: Mon, 15 Jan 2018 20:52:01 -0600
Subject: [PATCH 27/37] tracing: Add 'onmax' hist trigger action support
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add an 'onmax(var).save(field,...)' hist trigger action which is
invoked whenever an event exceeds the current maximum.
@ -86,7 +86,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
};
};
@@ -1701,7 +1713,8 @@ static int parse_action(char *str, struc
@@ -1697,7 +1709,8 @@ static int parse_action(char *str, struc
if (attrs->n_actions >= HIST_ACTIONS_MAX)
return ret;
@ -96,7 +96,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
attrs->action_str[attrs->n_actions] = kstrdup(str, GFP_KERNEL);
if (!attrs->action_str[attrs->n_actions]) {
ret = -ENOMEM;
@@ -1873,7 +1886,7 @@ static int hist_trigger_elt_data_alloc(s
@@ -1869,7 +1882,7 @@ static int hist_trigger_elt_data_alloc(s
}
}

2
debian/patches/features/all/rt/0028-hrtimer-Implement-support-for-softirq-based-hrtimers.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:17 +0100
Subject: [PATCH 28/29] hrtimer: Implement support for softirq based hrtimers
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
hrtimer callbacks are always invoked in hard interrupt context. Several
users in tree require soft interrupt context for their callbacks and

4
debian/patches/features/all/rt/0028-tracing-Allow-whitespace-to-surround-hist-trigger-fi.patch vendored
View File

@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:50 -0600
Date: Mon, 15 Jan 2018 20:52:02 -0600
Subject: [PATCH 28/37] tracing: Allow whitespace to surround hist trigger
filter
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The existing code only allows for one space before and after the 'if'
specifying the filter for a hist trigger. Add code to make that more

2
debian/patches/features/all/rt/0029-hrtimer-Implement-SOFT-HARD-clock-base-selection.patch vendored
View File

@ -1,7 +1,7 @@
From: Anna-Maria Gleixner <anna-maria@linutronix.de>
Date: Wed, 20 Dec 2017 17:13:18 +0100
Subject: [PATCH 29/29] hrtimer: Implement SOFT/HARD clock base selection
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
All prerequisites to handle hrtimers for expiry in either hard or soft
interrupt context are in place.

10
debian/patches/features/all/rt/0029-tracing-Add-cpu-field-for-hist-triggers.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:51 -0600
Date: Mon, 15 Jan 2018 20:52:03 -0600
Subject: [PATCH 29/37] tracing: Add cpu field for hist triggers
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
A common key to use in a histogram is the cpuid - add a new cpu
'synthetic' field named 'cpu' for that purpose.
@ -47,7 +47,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
};
struct var_defs {
@@ -1168,6 +1169,16 @@ static u64 hist_field_timestamp(struct h
@@ -1164,6 +1165,16 @@ static u64 hist_field_timestamp(struct h
return ts;
}
@ -64,7 +64,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static struct hist_field *
check_field_for_var_ref(struct hist_field *hist_field,
struct hist_trigger_data *var_data,
@@ -1606,6 +1617,8 @@ static const char *hist_field_name(struc
@@ -1602,6 +1613,8 @@ static const char *hist_field_name(struc
field_name = hist_field_name(field->operands[0], ++level);
else if (field->flags & HIST_FIELD_FL_TIMESTAMP)
field_name = "common_timestamp";
@ -73,7 +73,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
else if (field->flags & HIST_FIELD_FL_EXPR ||
field->flags & HIST_FIELD_FL_VAR_REF) {
if (field->system) {
@@ -2111,6 +2124,15 @@ static struct hist_field *create_hist_fi
@@ -2109,6 +2122,15 @@ static struct hist_field *create_hist_fi
goto out;
}

2
debian/patches/features/all/rt/0030-can-bcm-Replace-hrtimer_tasklet-with-softirq-based-h.patch vendored
View File

@ -2,7 +2,7 @@ From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 23 Nov 2017 16:39:11 +0100
Subject: [PATCH 30/36] can/bcm: Replace hrtimer_tasklet with softirq based
hrtimer
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Switch the timer to HRTIMER_MODE_SOFT, which executed the timer
callback in softirq context and remove the hrtimer_tasklet.

49
debian/patches/features/all/rt/0030-tracing-Add-hist-trigger-support-for-variable-refere.patch vendored
View File

@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:52 -0600
Date: Mon, 15 Jan 2018 20:52:04 -0600
Subject: [PATCH 30/37] tracing: Add hist trigger support for variable
reference aliases
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add support for alias=$somevar where alias can be used as
onmatch.xxx($alias).
@ -24,8 +24,8 @@ uses that in the call instead:
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
kernel/trace/trace_events_hist.c | 58 ++++++++++++++++++++++++++++++++++++---
1 file changed, 55 insertions(+), 3 deletions(-)
kernel/trace/trace_events_hist.c | 74 +++++++++++++++++++++++++++++++++++----
1 file changed, 67 insertions(+), 7 deletions(-)
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@ -37,7 +37,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
};
struct var_defs {
@@ -1613,7 +1614,8 @@ static const char *hist_field_name(struc
@@ -1609,7 +1610,8 @@ static const char *hist_field_name(struc
if (field->field)
field_name = field->field->name;
@ -47,7 +47,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
field_name = hist_field_name(field->operands[0], ++level);
else if (field->flags & HIST_FIELD_FL_TIMESTAMP)
field_name = "common_timestamp";
@@ -2082,7 +2084,7 @@ static struct hist_field *create_hist_fi
@@ -2080,7 +2082,7 @@ static struct hist_field *create_hist_fi
hist_field->hist_data = hist_data;
@ -56,7 +56,30 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
goto out; /* caller will populate */
if (flags & HIST_FIELD_FL_VAR_REF) {
@@ -2382,6 +2384,28 @@ parse_field(struct hist_trigger_data *hi
@@ -2217,10 +2219,18 @@ static int init_var_ref(struct hist_fiel
}
}
- ref_field->name = kstrdup(var_field->var.name, GFP_KERNEL);
- if (!ref_field->name) {
- err = -ENOMEM;
- goto free;
+ if (var_field->var.name) {
+ ref_field->name = kstrdup(var_field->var.name, GFP_KERNEL);
+ if (!ref_field->name) {
+ err = -ENOMEM;
+ goto free;
+ }
+ } else if (var_field->name) {
+ ref_field->name = kstrdup(var_field->name, GFP_KERNEL);
+ if (!ref_field->name) {
+ err = -ENOMEM;
+ goto free;
+ }
}
ref_field->type = kstrdup(var_field->type, GFP_KERNEL);
@@ -2382,6 +2392,28 @@ parse_field(struct hist_trigger_data *hi
return field;
}
@ -82,10 +105,10 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ return alias;
+}
+
struct hist_field *parse_atom(struct hist_trigger_data *hist_data,
struct trace_event_file *file, char *str,
unsigned long *flags, char *var_name)
@@ -2415,6 +2439,13 @@ struct hist_field *parse_atom(struct his
static struct hist_field *parse_atom(struct hist_trigger_data *hist_data,
struct trace_event_file *file, char *str,
unsigned long *flags, char *var_name)
@@ -2415,6 +2447,13 @@ static struct hist_field *parse_atom(str
if (hist_field) {
hist_data->var_refs[hist_data->n_var_refs] = hist_field;
hist_field->var_ref_idx = hist_data->n_var_refs++;
@ -99,7 +122,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return hist_field;
}
} else
@@ -2519,6 +2550,26 @@ static int check_expr_operands(struct hi
@@ -2515,6 +2554,26 @@ static int check_expr_operands(struct hi
unsigned long operand1_flags = operand1->flags;
unsigned long operand2_flags = operand2->flags;
@ -126,7 +149,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if ((operand1_flags & HIST_FIELD_FL_TIMESTAMP_USECS) !=
(operand2_flags & HIST_FIELD_FL_TIMESTAMP_USECS))
return -EINVAL;
@@ -4648,7 +4699,8 @@ static void hist_field_print(struct seq_
@@ -4648,7 +4707,8 @@ static void hist_field_print(struct seq_
else if (hist_field->flags & HIST_FIELD_FL_CPU)
seq_puts(m, "cpu");
else if (field_name) {

2
debian/patches/features/all/rt/0031-mac80211_hwsim-Replace-hrtimer-tasklet-with-softirq-.patch vendored
View File

@ -2,7 +2,7 @@ From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 23 Nov 2017 16:39:12 +0100
Subject: [PATCH 31/36] mac80211_hwsim: Replace hrtimer tasklet with softirq
hrtimer
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Switch the timer to HRTIMER_MODE_SOFT, which executed the timer
callback in softirq context and remove the hrtimer_tasklet.

84
debian/patches/features/all/rt/0031-tracing-Add-last-error-error-facility-for-hist-trigg.patch vendored
View File

@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:53 -0600
Date: Mon, 15 Jan 2018 20:52:05 -0600
Subject: [PATCH 31/37] tracing: Add 'last error' error facility for hist
triggers
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
With the addition of variables and actions, it's become necessary to
provide more detailed error information to users about syntax errors.
@ -27,8 +27,8 @@ Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Documentation/trace/histogram.txt | 20 ++++
kernel/trace/trace_events_hist.c | 159 ++++++++++++++++++++++++++++++++++----
2 files changed, 166 insertions(+), 13 deletions(-)
kernel/trace/trace_events_hist.c | 164 ++++++++++++++++++++++++++++++++++----
2 files changed, 170 insertions(+), 14 deletions(-)
--- a/Documentation/trace/histogram.txt
+++ b/Documentation/trace/histogram.txt
@ -127,7 +127,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
static LIST_HEAD(synth_event_list);
static DEFINE_MUTEX(synth_event_mutex);
@@ -1452,8 +1511,10 @@ static struct trace_event_file *find_var
@@ -1448,8 +1507,10 @@ static struct trace_event_file *find_var
continue;
if (find_var_field(var_hist_data, var_name)) {
@ -139,7 +139,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
found = file;
}
@@ -1502,6 +1563,7 @@ find_match_var(struct hist_trigger_data
@@ -1498,6 +1559,7 @@ find_match_var(struct hist_trigger_data
hist_field = find_file_var(file, var_name);
if (hist_field) {
if (found) {
@ -147,7 +147,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return ERR_PTR(-EINVAL);
}
@@ -1785,6 +1847,7 @@ static int parse_assignment(char *str, s
@@ -1781,6 +1843,7 @@ static int parse_assignment(char *str, s
char *assignment;
if (attrs->n_assignments == TRACING_MAP_VARS_MAX) {
@ -155,7 +155,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = -EINVAL;
goto out;
}
@@ -2327,6 +2390,10 @@ static struct hist_field *parse_var_ref(
@@ -2335,6 +2398,10 @@ static struct hist_field *parse_var_ref(
if (var_field)
ref_field = create_var_ref(var_field, system, event_name);
@ -166,7 +166,15 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return ref_field;
}
@@ -2571,8 +2638,10 @@ static int check_expr_operands(struct hi
@@ -2494,6 +2561,7 @@ static struct hist_field *parse_unary(st
// we support only -(xxx) i.e. explicit parens required
if (level > 3) {
+ hist_err("Too many subexpressions (3 max): ", str);
ret = -EINVAL;
goto free;
}
@@ -2575,8 +2643,10 @@ static int check_expr_operands(struct hi
}
if ((operand1_flags & HIST_FIELD_FL_TIMESTAMP_USECS) !=
@ -178,7 +186,19 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return 0;
}
@@ -2818,12 +2887,17 @@ create_field_var_hist(struct hist_trigge
@@ -2591,8 +2661,10 @@ static struct hist_field *parse_expr(str
int field_op, ret = -EINVAL;
char *sep, *operand1_str;
- if (level > 3)
+ if (level > 3) {
+ hist_err("Too many subexpressions (3 max): ", str);
return ERR_PTR(-EINVAL);
+ }
field_op = contains_operator(str);
@@ -2826,12 +2898,17 @@ create_field_var_hist(struct hist_trigge
char *cmd;
int ret;
@ -197,7 +217,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = PTR_ERR(file);
return ERR_PTR(ret);
}
@@ -2835,8 +2909,11 @@ create_field_var_hist(struct hist_trigge
@@ -2843,8 +2920,11 @@ create_field_var_hist(struct hist_trigge
* yet a registered histogram so we can't use that.
*/
hist_data = find_compatible_hist(target_hist_data, file);
@ -210,7 +230,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
/* See if a synthetic field variable has already been created */
event_var = find_synthetic_field_var(target_hist_data, subsys_name,
@@ -2895,6 +2972,8 @@ create_field_var_hist(struct hist_trigge
@@ -2903,6 +2983,8 @@ create_field_var_hist(struct hist_trigge
kfree(cmd);
kfree(var_hist->cmd);
kfree(var_hist);
@ -219,7 +239,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return ERR_PTR(ret);
}
@@ -2906,6 +2985,8 @@ create_field_var_hist(struct hist_trigge
@@ -2914,6 +2996,8 @@ create_field_var_hist(struct hist_trigge
if (IS_ERR_OR_NULL(event_var)) {
kfree(var_hist->cmd);
kfree(var_hist);
@ -228,7 +248,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return ERR_PTR(-EINVAL);
}
@@ -3042,18 +3123,21 @@ static struct field_var *create_field_va
@@ -3050,18 +3134,21 @@ static struct field_var *create_field_va
int ret = 0;
if (hist_data->n_field_vars >= SYNTH_FIELDS_MAX) {
@ -250,7 +270,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
kfree(val);
ret = PTR_ERR(var);
goto err;
@@ -3196,13 +3280,17 @@ static int onmax_create(struct hist_trig
@@ -3204,13 +3291,17 @@ static int onmax_create(struct hist_trig
int ret = 0;
onmax_var_str = data->onmax.var_str;
@ -270,7 +290,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
flags = HIST_FIELD_FL_VAR_REF;
ref_field = create_hist_field(hist_data, NULL, flags, NULL);
@@ -3222,6 +3310,7 @@ static int onmax_create(struct hist_trig
@@ -3230,6 +3321,7 @@ static int onmax_create(struct hist_trig
data->onmax.max_var_ref_idx = var_ref_idx;
max_var = create_var(hist_data, file, "max", sizeof(u64), "u64");
if (IS_ERR(max_var)) {
@ -278,7 +298,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = PTR_ERR(max_var);
goto out;
}
@@ -3236,6 +3325,7 @@ static int onmax_create(struct hist_trig
@@ -3244,6 +3336,7 @@ static int onmax_create(struct hist_trig
field_var = create_target_field_var(hist_data, NULL, NULL, param);
if (IS_ERR(field_var)) {
@ -286,7 +306,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = PTR_ERR(field_var);
kfree(param);
goto out;
@@ -3268,6 +3358,7 @@ static int parse_action_params(char *par
@@ -3276,6 +3369,7 @@ static int parse_action_params(char *par
param = strstrip(param);
if (strlen(param) < 2) {
@ -294,7 +314,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = -EINVAL;
goto out;
}
@@ -3443,6 +3534,9 @@ onmatch_find_var(struct hist_trigger_dat
@@ -3451,6 +3545,9 @@ onmatch_find_var(struct hist_trigger_dat
hist_field = find_event_var(hist_data, system, event, var);
}
@ -304,7 +324,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return hist_field;
}
@@ -3510,6 +3604,7 @@ static int onmatch_create(struct hist_tr
@@ -3518,6 +3615,7 @@ static int onmatch_create(struct hist_tr
mutex_lock(&synth_event_mutex);
event = find_synth_event(data->onmatch.synth_event_name);
if (!event) {
@ -312,7 +332,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
mutex_unlock(&synth_event_mutex);
return -EINVAL;
}
@@ -3569,12 +3664,15 @@ static int onmatch_create(struct hist_tr
@@ -3577,12 +3675,15 @@ static int onmatch_create(struct hist_tr
continue;
}
@ -328,7 +348,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = -EINVAL;
goto err;
}
@@ -3604,15 +3702,22 @@ static struct action_data *onmatch_parse
@@ -3612,15 +3713,22 @@ static struct action_data *onmatch_parse
return ERR_PTR(-ENOMEM);
match_event = strsep(&str, ")");
@ -354,7 +374,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
data->onmatch.match_event = kstrdup(match_event, GFP_KERNEL);
if (!data->onmatch.match_event) {
@@ -3627,12 +3732,16 @@ static struct action_data *onmatch_parse
@@ -3635,12 +3743,16 @@ static struct action_data *onmatch_parse
}
strsep(&str, ".");
@ -373,7 +393,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
data->onmatch.synth_event_name = kstrdup(synth_event_name, GFP_KERNEL);
if (!data->onmatch.synth_event_name) {
@@ -3641,8 +3750,10 @@ static struct action_data *onmatch_parse
@@ -3649,8 +3761,10 @@ static struct action_data *onmatch_parse
}
params = strsep(&str, ")");
@ -385,7 +405,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = parse_action_params(params, data);
if (ret)
@@ -3717,7 +3828,9 @@ static int create_var_field(struct hist_
@@ -3725,7 +3839,9 @@ static int create_var_field(struct hist_
if (WARN_ON(val_idx >= TRACING_MAP_VALS_MAX + TRACING_MAP_VARS_MAX))
return -EINVAL;
@ -395,7 +415,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return -EINVAL;
}
@@ -3798,6 +3911,7 @@ static int create_key_field(struct hist_
@@ -3806,6 +3922,7 @@ static int create_key_field(struct hist_
}
if (hist_field->flags & HIST_FIELD_FL_VAR_REF) {
@ -403,7 +423,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
destroy_hist_field(hist_field, 0);
ret = -EINVAL;
goto out;
@@ -3911,11 +4025,13 @@ static int parse_var_defs(struct hist_tr
@@ -3919,11 +4036,13 @@ static int parse_var_defs(struct hist_tr
var_name = strsep(&field_str, "=");
if (!var_name || !field_str) {
@ -417,7 +437,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = -EINVAL;
goto free;
}
@@ -4669,6 +4785,11 @@ static int hist_show(struct seq_file *m,
@@ -4677,6 +4796,11 @@ static int hist_show(struct seq_file *m,
hist_trigger_show(m, data, n++);
}
@ -429,7 +449,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
out_unlock:
mutex_unlock(&event_mutex);
@@ -5033,6 +5154,7 @@ static int hist_register_trigger(char *g
@@ -5041,6 +5165,7 @@ static int hist_register_trigger(char *g
if (named_data) {
if (!hist_trigger_match(data, named_data, named_data,
true)) {
@ -437,7 +457,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = -EINVAL;
goto out;
}
@@ -5052,13 +5174,16 @@ static int hist_register_trigger(char *g
@@ -5060,13 +5185,16 @@ static int hist_register_trigger(char *g
test->paused = false;
else if (hist_data->attrs->clear)
hist_clear(test);
@ -455,7 +475,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
ret = -ENOENT;
goto out;
}
@@ -5245,6 +5370,11 @@ static int event_hist_trigger_func(struc
@@ -5253,6 +5381,11 @@ static int event_hist_trigger_func(struc
char *trigger, *p;
int ret = 0;
@ -467,7 +487,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
if (!param)
return -EINVAL;
@@ -5383,6 +5513,9 @@ static int event_hist_trigger_func(struc
@@ -5391,6 +5524,9 @@ static int event_hist_trigger_func(struc
/* Just return zero, not the number of registered triggers */
ret = 0;
out:

4
debian/patches/features/all/rt/0032-tracing-Add-inter-event-hist-trigger-Documentation.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:54 -0600
Date: Mon, 15 Jan 2018 20:52:06 -0600
Subject: [PATCH 32/37] tracing: Add inter-event hist trigger Documentation
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Add background and details on inter-event hist triggers, including
hist variables, synthetic events, and actions.

2
debian/patches/features/all/rt/0032-xfrm-Replace-hrtimer-tasklet-with-softirq-hrtimer.patch vendored
View File

@ -1,7 +1,7 @@
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 23 Nov 2017 16:39:13 +0100
Subject: [PATCH 32/36] xfrm: Replace hrtimer tasklet with softirq hrtimer
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Switch the timer to HRTIMER_MODE_SOFT, which executed the timer
callback in softirq context and remove the hrtimer_tasklet.

2
debian/patches/features/all/rt/0033-softirq-Remove-tasklet_hrtimer.patch vendored
View File

@ -1,7 +1,7 @@
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 23 Nov 2017 16:39:14 +0100
Subject: [PATCH 33/36] softirq: Remove tasklet_hrtimer
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
There are no more tasklet_hrtimer users of this interface.
Remove it.

4
debian/patches/features/all/rt/0033-tracing-Make-tracing_set_clock-non-static.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:55 -0600
Date: Mon, 15 Jan 2018 20:52:07 -0600
Subject: [PATCH 33/37] tracing: Make tracing_set_clock() non-static
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Allow tracing code outside of trace.c to access tracing_set_clock().

2
debian/patches/features/all/rt/0034-ALSA-dummy-Replace-tasklet-with-softirq-hrtimer.patch vendored
View File

@ -1,7 +1,7 @@
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 23 Nov 2017 16:39:15 +0100
Subject: [PATCH 34/36] ALSA/dummy: Replace tasklet with softirq hrtimer
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The tasklet is used to defer the execution of snd_pcm_period_elapsed() to
the softirq context. Using the HRTIMER_MODE_SOFT mode invokes the timer

16
debian/patches/features/all/rt/0034-tracing-Add-a-clock-attribute-for-hist-triggers.patch vendored
View File

@ -1,7 +1,7 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:56 -0600
Date: Mon, 15 Jan 2018 20:52:08 -0600
Subject: [PATCH 34/37] tracing: Add a clock attribute for hist triggers
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The default clock if timestamps are used in a histogram is "global".
If timestamps aren't used, the clock is irrelevant.
@ -47,7 +47,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
bool pause;
bool cont;
bool clear;
@@ -1780,6 +1781,7 @@ static void destroy_hist_trigger_attrs(s
@@ -1776,6 +1777,7 @@ static void destroy_hist_trigger_attrs(s
kfree(attrs->sort_key_str);
kfree(attrs->keys_str);
kfree(attrs->vals_str);
@ -55,7 +55,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
kfree(attrs);
}
@@ -1835,6 +1837,19 @@ static int parse_assignment(char *str, s
@@ -1831,6 +1833,19 @@ static int parse_assignment(char *str, s
ret = -ENOMEM;
goto out;
}
@ -75,7 +75,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
} else if (strncmp(str, "size=", strlen("size=")) == 0) {
int map_bits = parse_map_size(str);
@@ -1899,6 +1914,14 @@ static struct hist_trigger_attrs *parse_
@@ -1895,6 +1910,14 @@ static struct hist_trigger_attrs *parse_
goto free;
}
@ -90,7 +90,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
return attrs;
free:
destroy_hist_trigger_attrs(attrs);
@@ -4925,6 +4948,8 @@ static int event_hist_trigger_print(stru
@@ -4936,6 +4959,8 @@ static int event_hist_trigger_print(stru
seq_puts(m, ".descending");
}
seq_printf(m, ":size=%u", (1 << hist_data->map->map_bits));
@ -99,7 +99,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
print_actions_spec(m, hist_data);
@@ -5192,7 +5217,6 @@ static int hist_register_trigger(char *g
@@ -5203,7 +5228,6 @@ static int hist_register_trigger(char *g
data->paused = true;
if (named_data) {
@ -107,7 +107,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
data->private_data = named_data->private_data;
set_named_trigger_data(data, named_data);
data->ops = &event_hist_trigger_named_ops;
@@ -5204,10 +5228,22 @@ static int hist_register_trigger(char *g
@@ -5215,10 +5239,22 @@ static int hist_register_trigger(char *g
goto out;
}

4
debian/patches/features/all/rt/0035-tracing-Increase-trace_recursive_lock-limit-for-synt.patch vendored
View File

@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:57 -0600
Date: Mon, 15 Jan 2018 20:52:09 -0600
Subject: [PATCH 35/37] tracing: Increase trace_recursive_lock() limit for
synthetic events
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Synthetic event generation needs to happen while the current event is
still in progress, so add 1 to the trace_recursive_lock() recursion

2
debian/patches/features/all/rt/0035-usb-gadget-NCM-Replace-tasklet-with-softirq-hrtimer.patch vendored
View File

@ -1,7 +1,7 @@
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 23 Nov 2017 16:39:16 +0100
Subject: [PATCH 35/36] usb/gadget/NCM: Replace tasklet with softirq hrtimer
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The tx_tasklet tasklet is used in invoke the hrtimer (task_timer) in
softirq context. This can be also achieved without the tasklet but

2
debian/patches/features/all/rt/0036-net-mvpp2-Replace-tasklet-with-softirq-hrtimer.patch vendored
View File

@ -1,7 +1,7 @@
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 23 Nov 2017 16:39:17 +0100
Subject: [PATCH 36/36] net/mvpp2: Replace tasklet with softirq hrtimer
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The tx_done_tasklet tasklet is used in invoke the hrtimer
(mvpp2_hr_timer_cb) in softirq context. This can be also achieved without

4
debian/patches/features/all/rt/0036-tracing-Add-inter-event-blurb-to-HIST_TRIGGERS-confi.patch vendored
View File

@ -1,8 +1,8 @@
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 21 Dec 2017 10:02:58 -0600
Date: Mon, 15 Jan 2018 20:52:10 -0600
Subject: [PATCH 36/37] tracing: Add inter-event blurb to HIST_TRIGGERS config
option
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
So that users know that inter-event tracing is supported as part of
the HIST_TRIGGERS option, include text to that effect in the help

4
debian/patches/features/all/rt/0037-selftests-ftrace-Add-inter-event-hist-triggers-testc.patch vendored
View File

@ -1,8 +1,8 @@
From: Rajvi Jingar <rajvi.jingar@intel.com>
Date: Thu, 21 Dec 2017 10:02:59 -0600
Date: Mon, 15 Jan 2018 20:52:11 -0600
Subject: [PATCH 37/37] selftests: ftrace: Add inter-event hist triggers
testcases
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
This adds inter-event hist triggers testcases which covers following:
- create/remove synthetic event

2
debian/patches/features/all/rt/ARM-enable-irq-in-translation-section-permission-fau.patch vendored
View File

@ -1,7 +1,7 @@
From: "Yadi.hu" <yadi.hu@windriver.com>
Date: Wed, 10 Dec 2014 10:32:09 +0800
Subject: ARM: enable irq in translation/section permission fault handlers
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Probably happens on all ARM, with
CONFIG_PREEMPT_RT_FULL

2
debian/patches/features/all/rt/Bluetooth-avoid-recursive-locking-in-hci_send_to_cha.patch vendored
View File

@ -2,7 +2,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 21 Sep 2017 15:35:57 +0200
Subject: Bluetooth: avoid recursive locking in
hci_send_to_channel()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Mart reported a deadlock in -RT in the call path:
hci_send_monitor_ctrl_event() -> hci_send_to_channel()

2
debian/patches/features/all/rt/HACK-printk-drop-the-logbuf_lock-more-often.patch vendored
View File

@ -1,7 +1,7 @@
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 21 Mar 2013 19:01:05 +0100
Subject: printk: Drop the logbuf_lock more often
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The lock is hold with irgs off. The latency drops 500us+ on my arm bugs
with a "full" buffer after executing "dmesg" on the shell.

2
debian/patches/features/all/rt/KVM-arm-arm64-downgrade-preempt_disable-d-region-to-.patch vendored
View File

@ -1,7 +1,7 @@
From: Josh Cartwright <joshc@ni.com>
Date: Thu, 11 Feb 2016 11:54:01 -0600
Subject: KVM: arm/arm64: downgrade preempt_disable()d region to migrate_disable()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
kvm_arch_vcpu_ioctl_run() disables the use of preemption when updating
the vgic and timer states to prevent the calling task from migrating to

2
debian/patches/features/all/rt/NFSv4-replace-seqcount_t-with-a-seqlock_t.patch vendored
View File

@ -5,7 +5,7 @@ Cc: Anna Schumaker <anna.schumaker@netapp.com>,
linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
tglx@linutronix.de
Subject: NFSv4: replace seqcount_t with a seqlock_t
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.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

2
debian/patches/features/all/rt/RCU-we-need-to-skip-that-warning-but-only-on-sleepin.patch vendored
View File

@ -2,7 +2,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 21 Sep 2017 14:25:13 +0200
Subject: [PATCH] RCU: we need to skip that warning but only on sleeping
locks
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
This check is okay for upstream. On RT we trigger this while blocking on
sleeping lock. In this case, it is okay to schedule() within a RCU

2
debian/patches/features/all/rt/Revert-fs-jbd2-pull-your-plug-when-waiting-for-space.patch vendored
View File

@ -1,7 +1,7 @@
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 23 Nov 2017 17:51:51 +0100
Subject: [PATCH] Revert "fs: jbd2: pull your plug when waiting for space"
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
This reverts commit "fs: jbd2: pull your plug when waiting for space".
This was a duct-tape fix which shouldn't be needed since commit

2
debian/patches/features/all/rt/Revert-memcontrol-Prevent-scheduling-while-atomic-in.patch vendored
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@ -2,7 +2,7 @@ From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Wed, 22 Nov 2017 07:31:19 -0500
Subject: [PATCH] Revert "memcontrol: Prevent scheduling while atomic in cgroup
code"
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The commit "memcontrol: Prevent scheduling while atomic in cgroup code"
fixed this issue:

2
debian/patches/features/all/rt/acpi-rt-Convert-acpi_gbl_hardware-lock-back-to-a-raw.patch vendored
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@ -1,7 +1,7 @@
From: Steven Rostedt <rostedt@goodmis.org>
Date: Wed, 13 Feb 2013 09:26:05 -0500
Subject: acpi/rt: Convert acpi_gbl_hardware lock back to a raw_spinlock_t
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
We hit the following bug with 3.6-rt:

2
debian/patches/features/all/rt/add_migrate_disable.patch vendored
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@ -1,7 +1,7 @@
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat, 27 May 2017 19:02:06 +0200
Subject: kernel/sched/core: add migrate_disable()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
---
include/linux/preempt.h | 23 ++++++++

2
debian/patches/features/all/rt/apparmor-use-a-locallock-instead-preempt_disable.patch vendored
View File

@ -1,7 +1,7 @@
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 11 Oct 2017 17:43:49 +0200
Subject: apparmor: use a locallock instead preempt_disable()
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
get_buffers() disables preemption which acts as a lock for the per-CPU
variable. Since we can't disable preemption here on RT, a local_lock is

2
debian/patches/features/all/rt/arch-arm64-Add-lazy-preempt-support.patch vendored
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@ -1,7 +1,7 @@
From: Anders Roxell <anders.roxell@linaro.org>
Date: Thu, 14 May 2015 17:52:17 +0200
Subject: arch/arm64: Add lazy preempt support
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
arm64 is missing support for PREEMPT_RT. The main feature which is
lacking is support for lazy preemption. The arch-specific entry code,

2
debian/patches/features/all/rt/arm-at91-pit-remove-irq-handler-when-clock-is-unused.patch vendored
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@ -1,7 +1,7 @@
From: Benedikt Spranger <b.spranger@linutronix.de>
Date: Sat, 6 Mar 2010 17:47:10 +0100
Subject: ARM: AT91: PIT: Remove irq handler when clock event is unused
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
Setup and remove the interrupt handler in clock event mode selection.
This avoids calling the (shared) interrupt handler when the device is

2
debian/patches/features/all/rt/arm-at91-tclib-default-to-tclib-timer-for-rt.patch vendored
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@ -1,7 +1,7 @@
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sat, 1 May 2010 18:29:35 +0200
Subject: ARM: at91: tclib: Default to tclib timer for RT
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
RT is not too happy about the shared timer interrupt in AT91
devices. Default to tclib timer for RT.

2
debian/patches/features/all/rt/arm-convert-boot-lock-to-raw.patch vendored
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@ -1,7 +1,7 @@
From: Frank Rowand <frank.rowand@am.sony.com>
Date: Mon, 19 Sep 2011 14:51:14 -0700
Subject: arm: Convert arm boot_lock to raw
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.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.

2
debian/patches/features/all/rt/arm-disable-NEON-in-kernel-mode.patch vendored
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@ -1,7 +1,7 @@
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 1 Dec 2017 10:42:03 +0100
Subject: [PATCH] arm*: disable NEON in kernel mode
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.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

2
debian/patches/features/all/rt/arm-enable-highmem-for-rt.patch vendored
View File

@ -1,7 +1,7 @@
Subject: arm: Enable highmem for rt
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 13 Feb 2013 11:03:11 +0100
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
fixup highmem for ARM.

2
debian/patches/features/all/rt/arm-highmem-flush-tlb-on-unmap.patch vendored
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@ -1,7 +1,7 @@
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 11 Mar 2013 21:37:27 +0100
Subject: arm/highmem: Flush tlb on unmap
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt11.tar.xz
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.14/older/patches-4.14.15-rt13.tar.xz
The tlb should be flushed on unmap and thus make the mapping entry
invalid. This is only done in the non-debug case which does not look

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