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| author | Satyam Sharma | 2007-10-16 10:24:44 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2007-10-16 18:42:53 +0200 |
| commit | 2408c55037c3f7d51a8a100025c47595e71b838c (patch) | |
| tree | 71940f72dbadf6a6744ffbd062ef4fd8754aa623 /mm/memory.c | |
| parent | move mm_struct and vm_area_struct (diff) | |
| download | kernel-qcow2-linux-2408c55037c3f7d51a8a100025c47595e71b838c.tar.gz kernel-qcow2-linux-2408c55037c3f7d51a8a100025c47595e71b838c.tar.xz kernel-qcow2-linux-2408c55037c3f7d51a8a100025c47595e71b838c.zip | |
{slub, slob}: use unlikely() for kfree(ZERO_OR_NULL_PTR) check
Considering kfree(NULL) would normally occur only in error paths and
kfree(ZERO_SIZE_PTR) is uncommon as well, so let's use unlikely() for the
condition check in SLUB's and SLOB's kfree() to optimize for the common
case. SLAB has this already.
Signed-off-by: Satyam Sharma <satyam@infradead.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
0 files changed, 0 insertions, 0 deletions