Jan Beulich 9d8e22777e x86-64: Handle byte-wise tail copying in memcpy() without a loop ...

While hard to measure, reducing the number of possibly/likely
mis-predicted branches can generally be expected to be slightly
better.

Other than apparent at the first glance, this also doesn't grow
the function size (the alignment gap to the next function just
gets smaller).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/4F218584020000780006F422@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2012-01-26 21:19:20 +01:00

..

.gitignore

x86: Gitignore: arch/x86/lib/inat-tables.c

2009-11-04 13:11:28 +01:00

atomic64_32.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

atomic64_386_32.S

x86: Use {push,pop}_cfi in more places

2011-02-28 18:06:22 +01:00

atomic64_cx8_32.S

x86: Use {push,pop}_cfi in more places

2011-02-28 18:06:22 +01:00

cache-smp.c

x86, lib: Add wbinvd smp helpers

2010-01-22 16:05:42 -08:00

checksum_32.S

x86: Use {push,pop}_cfi in more places

2011-02-28 18:06:22 +01:00

clear_page_64.S

x86, mem: clear_page_64.S: Support clear_page() with enhanced REP MOVSB/STOSB

2011-05-17 15:40:27 -07:00

cmpxchg8b_emu.S

x86: Provide an alternative() based cmpxchg64()

2009-09-30 22:55:59 +02:00

cmpxchg16b_emu.S

percpu: Omit segment prefix in the UP case for cmpxchg_double

2011-03-27 19:25:36 -07:00

cmpxchg.c

x86, asm: Merge cmpxchg_486_u64() and cmpxchg8b_emu()

2010-07-28 17:05:11 -07:00

copy_page_64.S

x86-64: Slightly shorten copy_page()

2012-01-06 12:25:37 +01:00

copy_user_64.S

x86, 64-bit: Fix copy_[to/from]_user() checks for the userspace address limit

2011-05-18 12:49:00 +02:00

copy_user_nocache_64.S

x86: wrong register was used in align macro

2008-07-30 10:10:39 -07:00

csum-copy_64.S

x86: Clean up csum-copy_64.S a bit

2011-03-18 10:44:26 +01:00

csum-partial_64.c

x86: Fix common misspellings

2011-03-18 10:39:30 +01:00

csum-wrappers_64.c

x86: clean up csum-wrappers_64.c some more

2008-02-19 16:18:32 +01:00

delay.c

x86: udelay: Use this_cpu_read to avoid address calculation

2011-01-04 06:08:55 +01:00

getuser.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

inat.c

x86: AVX instruction set decoder support

2009-10-29 08:47:46 +01:00

insn.c

x86: Fix insn decoder for longer instruction

2011-10-10 09:05:51 +02:00

iomap_copy_64.S

x86_64: move lib

2007-10-11 11:17:08 +02:00

Makefile

Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-07-22 17:02:24 -07:00

memcpy_32.c

x86, mem: Optimize memmove for small size and unaligned cases

2010-09-24 18:57:11 -07:00

memcpy_64.S

x86-64: Handle byte-wise tail copying in memcpy() without a loop

2012-01-26 21:19:20 +01:00

memmove_64.S

x86: Make alternative instruction pointers relative

2011-07-13 11:22:56 -07:00

memset_64.S

x86-64: Fix memset() to support sizes of 4Gb and above

2012-01-26 11:50:04 +01:00

mmx_32.c

x86: clean up mmx_32.c

2008-04-17 17:40:47 +02:00

msr-reg-export.c

x86, msr: change msr-reg.o to obj-y, and export its symbols

2009-09-04 10:00:09 -07:00

msr-reg.S

x86, msr: Fix msr-reg.S compilation with gas 2.16.1, on 32-bit too

2009-09-03 21:26:34 +02:00

msr-smp.c

x86, msr: msrs_alloc/free for CONFIG_SMP=n

2009-12-16 15:36:32 -08:00

msr.c

x86, msr: msrs_alloc/free for CONFIG_SMP=n

2009-12-16 15:36:32 -08:00

putuser.S

x86: merge putuser asm functions.

2008-07-09 09:14:13 +02:00

rwlock.S

x86: Fix write lock scalability 64-bit issue

2011-07-21 09:03:36 +02:00

rwsem.S

x86: Unify rwsem assembly implementation

2011-07-21 09:03:32 +02:00

string_32.c

x86/i386: Use less assembly in strlen(), speed things up a bit

2011-12-12 18:33:42 +01:00

strstr_32.c

x86: coding style fixes to arch/x86/lib/strstr_32.c

2008-08-15 16:53:24 +02:00

thunk_32.S

x86: Remove unused bits from lib/thunk_*.S

2011-02-28 18:06:22 +01:00

thunk_64.S

x86: Fix write lock scalability 64-bit issue

2011-07-21 09:03:36 +02:00

usercopy_32.c

x86: Turn the copy_from_user check into an (optional) compile time warning

2009-10-01 11:31:04 +02:00

usercopy_64.c

x86, 64-bit: Clean up user address masking

2009-06-20 15:40:00 -07:00

usercopy.c

x86, perf: Make copy_from_user_nmi() a library function

2011-07-21 20:41:57 +02:00

x86-opcode-map.txt

x86: Add Intel FMA instructions to x86 opcode map

2009-10-29 08:47:47 +01:00