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| author | Fenghua Yu <fenghua.yu@intel.com> | 2011-05-17 15:29:15 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-05-17 15:40:28 -0700 |
| commit | 4307bec9344aed83f8107c3eb4285bd9d218fc10 (patch) | |
| tree | d18d0b7e6c5d0a93fc84504d546add5f1ca09c5a /arch/x86/lib/memcpy_64.S | |
| parent | e365c9df2f2f001450decf9512412d2d5bd1cdef (diff) | |
| download | op-kernel-dev-4307bec9344aed83f8107c3eb4285bd9d218fc10.zip op-kernel-dev-4307bec9344aed83f8107c3eb4285bd9d218fc10.tar.gz | |
x86, mem: copy_user_64.S: Support copy_to/from_user by enhanced REP MOVSB/STOSB
Support copy_to_user/copy_from_user() by enhanced REP MOVSB/STOSB.
On processors supporting enhanced REP MOVSB/STOSB, the alternative
copy_user_enhanced_fast_string function using enhanced rep movsb overrides the
original function and the fast string function.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1305671358-14478-7-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/lib/memcpy_64.S')
0 files changed, 0 insertions, 0 deletions
