diff options
| author | Fenghua Yu <fenghua.yu@intel.com> | 2011-05-17 15:29:17 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-05-17 15:40:30 -0700 |
| commit | 057e05c1d6440117875f455e59da8691e08f65d5 (patch) | |
| tree | 79c8306de2ebe31252b730170e33bd62ed18ccdb /arch/x86/lib/copy_user_64.S | |
| parent | 101068c1f4a947ffa08f2782c78e40097300754d (diff) | |
x86, mem: memmove_64.S: Optimize memmove by enhanced REP MOVSB/STOSB
Support memmove() by enhanced rep movsb. On processors supporting enhanced
REP MOVSB/STOSB, the alternative memmove() function using enhanced rep movsb
overrides the original function.
The patch doesn't change the backward memmove case to use enhanced rep
movsb.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1305671358-14478-9-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/lib/copy_user_64.S')
0 files changed, 0 insertions, 0 deletions