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Kalesh Singh f47716b7a9 tracing/histogram: Covert expr to const if both operands are constants 
If both operands of a hist trigger expression are constants, convert the
expression to a constant. This optimization avoids having to perform the
same calculation multiple times and also saves on memory since the
merged constants are represented by a single struct hist_field instead
or multiple.

Link: https://lkml.kernel.org/r/20211025200852.3002369-6-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2021-10-26 20:27:19 -04:00
arch
kprobes: Add a test case for stacktrace from kretprobe handler
2021-10-26 17:23:45 -04:00
block
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2021-09-25 16:05:56 -07:00
certs
certs: Add support for using elliptic curve keys for signing modules
2021-08-23 19:55:42 +03:00
crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2021-08-30 12:57:10 -07:00
Documentation
docs, kprobes: Remove invalid URL and add new reference
2021-10-26 17:23:46 -04:00
drivers
Merge tag 'edac_urgent_for_v5.15_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
2021-09-26 12:18:10 -07:00
fs
tracefs: Have tracefs directories not set OTH permission bits by default
2021-10-08 18:08:43 -04:00
include
tracing: Explain the trace recursion transition bit better
2021-10-21 14:19:00 -04:00
init
bootconfig: Rename xbc_destroy_all() to xbc_exit()
2021-10-10 20:44:05 -04:00
ipc
ipc: remove memcg accounting for sops objects in do_semtimedop()
2021-09-14 10:22:11 -07:00
kernel
tracing/histogram: Covert expr to const if both operands are constants
2021-10-26 20:27:19 -04:00
lib
test_kprobes: Move it from kernel/ to lib/
2021-10-26 17:23:46 -04:00
LICENSES
LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
2021-07-15 06:31:24 -06:00
mm
mm: fix uninitialized use in overcommit_policy_handler
2021-09-24 16:13:35 -07:00
net
nexthop: Fix memory leaks in nexthop notification chain listeners
2021-09-23 12:33:22 +01:00
samples
samples/kretprobes: Fix return value if register_kretprobe() failed
2021-10-26 17:23:46 -04:00
scripts
kasan: always respect CONFIG_KASAN_STACK
2021-09-24 16:13:35 -07:00
security
selinux,smack: fix subjective/objective credential use mixups
2021-09-23 12:30:59 -04:00
sound
Merge tag 'sound-fix-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
2021-09-09 16:05:10 -07:00
tools
selftests/ftrace: Stop tracing while reading the trace file by default
2021-10-26 20:27:19 -04:00
usr
.gitignore: prefix local generated files with a slash
2021-05-02 00:43:35 +09:00
virt
KVM: Drop unused kvm_dirty_gfn_invalid()
2021-09-06 08:23:46 -04:00
.clang-format
clang-format: Update with the latest for_each macro list
2021-05-12 23:32:39 +02:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
.gitignore: ignore only top-level modules.builtin
2021-05-02 00:43:35 +09:00
.mailmap
mailmap: update email address of Matthias Fuchs and Thomas Körper
2021-08-19 09:39:44 +02:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: move Murali Karicheri to credits
2021-04-29 15:47:30 -07:00
Kbuild
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
MAINTAINERS: Update KPROBES and TRACING entries
2021-10-26 17:23:46 -04:00
Makefile
Linux 5.15-rc3
2021-09-26 14:08:19 -07:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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