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| author | Satyam Sharma <satyam@infradead.org> | 2007-10-16 01:24:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:42:53 -0700 |
| commit | 2408c55037c3f7d51a8a100025c47595e71b838c (patch) | |
| tree | 71940f72dbadf6a6744ffbd062ef4fd8754aa623 /block | |
| parent | c92ff1bde06f69d59b40f3194016aee51cc5da55 (diff) | |
| download | op-kernel-dev-2408c55037c3f7d51a8a100025c47595e71b838c.zip op-kernel-dev-2408c55037c3f7d51a8a100025c47595e71b838c.tar.gz | |
{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 'block')
0 files changed, 0 insertions, 0 deletions
