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Filename Latest commit message Latest commit date
Mao Han 3a5b64f05d perf evsel: Use hweight64() instead of hweight_long(attr.sample_regs_user) 
On 32-bits platform with more than 32 registers, the 64 bits mask is
truncate to the lower 32 bits and the return value of hweight_long will
always smaller than 32. When kernel outputs more than 32 registers, but
the user perf program only counts 32, there will be a data mismatch
result to overflow check fail.

Signed-off-by: Mao Han <han_mao@c-sky.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Fixes: 6a21c0b5c2 ("perf tools: Add core support for sampling intr machine state regs")
Fixes: d03f217054 ("perf tools: Expand perf_event__synthesize_sample()")
Fixes: 0f6a30150c ("perf tools: Support user regs and stack in sample parsing")
Link: http://lkml.kernel.org/r/29ad7947dc8fd1ff0abd2093a72cc27a2446be9f.1554883878.git.han_mao@c-sky.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-04-16 11:27:53 -03:00
arch perf/x86: Fix incorrect PEBS_REGS 2019-04-16 12:13:58 +02:00
block block: do not leak memory in bio_copy_user_iov() 2019-04-10 16:14:40 -06:00
certs
crypto
Documentation ARM: SoC fixes 2019-04-07 13:46:17 -10:00
drivers libnvdimm fixes v5.1-rc6 2019-04-15 16:48:51 -07:00
fs fsdax fix 5.1-rc6 2019-04-15 15:10:20 -07:00
include Merge branch 'page-refs' (page ref overflow) 2019-04-14 15:09:40 -07:00
init
ipc
kernel perf/ring_buffer: Fix AUX record suppression 2019-04-16 12:13:57 +02:00
lib Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-04-09 16:20:59 -10:00
LICENSES
mm Merge branch 'page-refs' (page ref overflow) 2019-04-14 15:09:40 -07:00
net Revert "SUNRPC: Micro-optimise when the task is known not to be sleeping" 2019-04-11 15:41:14 -04:00
samples
scripts fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock 2019-04-06 07:01:55 -10:00
security apparmor: Restore Y/N in /sys for apparmor's "enabled" 2019-04-10 04:24:48 -07:00
sound ASoC: Fixes for v5.1 2019-04-11 14:36:30 +02:00
tools perf evsel: Use hweight64() instead of hweight_long(attr.sample_regs_user) 2019-04-16 11:27:53 -03:00
usr
virt
.clang-format clang-format: Update with the latest for_each macro list 2019-04-12 12:49:54 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS virtio: fixes, reviewers 2019-04-10 06:42:51 -10:00
Makefile Linux 5.1-rc5 2019-04-14 15:17:41 -07:00
README

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.