tree 9287d1dcfd313193b944f3dc49a6519a40a7ee4f
parent 3c8f370ded3483b27f1218ff0051fcf0c7a2facd
author Shaohua Li <shaohua.li@intel.com> 1306282415 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1306337994 -0700

percpu_counter: change return value and add comments

The percpu_counter_*_positive() API in UP case doesn't check if return
value is positive.  Add comments to explain why we don't.  Also if count <
0, returns 0 instead of 1 for *read_positive().

[akpm@linux-foundation.org: tweak comment]
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>