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Arnaldo Carvalho de Melo 1f27a050fc tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' To cope with the changes in: `12c89130a5` ("x86/asm/memcpy_mcsafe: Add write-protection-fault handling") `60622d6822` ("x86/asm/memcpy_mcsafe: Return bytes remaining") `bd131544aa` ("x86/asm/memcpy_mcsafe: Add labels for __memcpy_mcsafe() write fault handling") `da7bc9c57e` ("x86/asm/memcpy_mcsafe: Remove loop unrolling") This needed introducing a file with a copy of the mcsafe_handle_tail() function, that is used in the new memcpy_64.S file, as well as a dummy mcsafe_test.h header. Testing it: $ nm ~/bin/perf \| grep mcsafe 0000000000484130 T mcsafe_handle_tail 0000000000484300 T __memcpy_mcsafe $ $ perf bench mem memcpy # Running 'mem/memcpy' benchmark: # function 'default' (Default memcpy() provided by glibc) # Copying 1MB bytes ... 44.389205 GB/sec # function 'x86-64-unrolled' (unrolled memcpy() in arch/x86/lib/memcpy_64.S) # Copying 1MB bytes ... 22.710756 GB/sec # function 'x86-64-movsq' (movsq-based memcpy() in arch/x86/lib/memcpy_64.S) # Copying 1MB bytes ... 42.459239 GB/sec # function 'x86-64-movsb' (movsb-based memcpy() in arch/x86/lib/memcpy_64.S) # Copying 1MB bytes ... 42.459239 GB/sec $ This silences this perf tools build warning: Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mika Penttilä <mika.penttila@nextfour.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-igdpciheradk3gb3qqal52d0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2018-07-30 12:36:51 -03:00
arch	perf/x86/intel: Fix unwind errors from PEBS entries (mk-II)	2018-07-25 11:46:21 +02:00
block
certs
crypto
Documentation	- Fix DM writecache target to allow an optional offset to the start of	2018-07-20 14:24:17 -07:00
drivers	NVMe fixes for 4.18-rc6:	2018-07-22 13:21:45 -07:00
firmware
fs	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-07-22 12:04:51 -07:00
include	perf/x86/intel: Fix unwind errors from PEBS entries (mk-II)	2018-07-25 11:46:21 +02:00
init
ipc
kernel	perf/core: Fix crash when using HW tracing kernel filters	2018-07-25 11:46:22 +02:00
lib	Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-07-21 16:52:08 -07:00
LICENSES
mm	mm: make vm_area_alloc() initialize core fields	2018-07-21 15:24:03 -07:00
net
samples
scripts
security
sound
tools	tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'	2018-07-30 12:36:51 -03:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS	MAINTAINERS: Add Naveen N. Rao as kprobes co-maintainer	2018-07-24 17:01:28 +02:00
Makefile	Linux 4.18-rc6	2018-07-22 14:12:20 -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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.