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(parent: 3d8d996) | patch
list.h: add list_is_singular()
authorMasami Hiramatsu <mhiramat@redhat.com>
Mon, 28 Apr 2008 09:14:27 +0000 (02:14 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 28 Apr 2008 15:58:32 +0000 (08:58 -0700)
commit99602572812442d47403d85f376ad51298dd82a6
tree204948267936e9a3f1c430d970c9a68f1583b55dtree | snapshot
parent3d8d996e0ca5b4093203d3f050b0f70b5c949ae8commit | diff
list.h: add list_is_singular()

Add list_is_singular() to check a list has just one entry.

list_is_singular() is useful to check whether a list_head which have been
temporarily allocated for listing objects can be released or not.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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