tree 35bed1e865ee9f8b086954d866cee9c1c2b92b0f
parent 212079cf4ee99e492a57b817e796825d423a30bb
author Ken Chen <kenneth.w.chen@intel.com> 1114963155 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> 1114963155 -0700

[PATCH] aio: ring wrapping simplification

Since the tail pointer in aio_ring structure never wrap ring size more than
once, so a simple compare is sufficient to wrap the index around.  This avoid
a more expensive mod operation.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Suparna Bhattacharya <suparna@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>