commit 798248206b59acc6e1238c778281419c041891a7
author Akinobu Mita <akinobu.mita@gmail.com> Mon Oct 31 17:08:07 2011 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> Mon Oct 31 17:30:47 2011 -0700
tree ff8564431367b442b18bca4a0a9732e5799e2391
parent 77311139f364d7f71fc9ba88f59fd90e60205007

lib/string.c: introduce memchr_inv()

memchr_inv() is mainly used to check whether the whole buffer is filled
with just a specified byte.

The function name and prototype are stolen from logfs and the
implementation is from SLUB.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Matt Mackall <mpm@selenic.com>
Acked-by: Joern Engel <joern@logfs.org>
Cc: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>