]> git.karo-electronics.de Git - karo-tx-linux.git/commit
perf: Remove the extra validity check on nr_pages
authorKaixu Xia <xiakaixu@huawei.com>
Tue, 27 Jan 2015 09:55:12 +0000 (17:55 +0800)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 13 Feb 2015 14:40:30 +0000 (11:40 -0300)
commit74390aa5567827add5058a3b26eff0ed06a629ba
treee0deaad7ad8a9667f277f334282358e89dd4a6b6
parent3a03005ff9445834f3d3b577a11bcbdbdf7a89cf
perf: Remove the extra validity check on nr_pages

The function is_power_of_2() also do the check on nr_pages, so the first
check performed is unnecessary. On the other hand, the key point is to
ensure @nr_pages is a power-of-two number and mostly @nr_pages is a
nonzero value, so in the most cases, the function is_power_of_2() will
be called.

Signed-off-by: Kaixu Xia <xiakaixu@huawei.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Link: http://lkml.kernel.org/r/1422352512-75150-1-git-send-email-xiakaixu@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
kernel/events/core.c