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| author | Kaixu Xia <xiakaixu@huawei.com> | 2015-01-27 17:55:12 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-13 11:40:30 -0300 |
| commit | 74390aa5567827add5058a3b26eff0ed06a629ba (patch) | |
| tree | e0deaad7ad8a9667f277f334282358e89dd4a6b6 /mm/mm_init.c | |
| parent | 3a03005ff9445834f3d3b577a11bcbdbdf7a89cf (diff) | |
| download | talos-op-linux-74390aa5567827add5058a3b26eff0ed06a629ba.tar.gz talos-op-linux-74390aa5567827add5058a3b26eff0ed06a629ba.zip | |
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>
Diffstat (limited to 'mm/mm_init.c')
0 files changed, 0 insertions, 0 deletions
