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| author | Michal Hocko <mhocko@suse.cz> | 2014-04-07 22:37:44 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-07 23:35:56 (GMT) |
| commit | b6b6cc72bc404c952968530d7df4c3a4ab82b65b (patch) | |
| tree | c04f019844dacfafdd61ad2f97bb1a0a845066ee /drivers/ata/pata_sil680.c | |
| parent | df381975463996178d685f6ef7d3555c5f887201 (diff) | |
| download | linux-b6b6cc72bc404c952968530d7df4c3a4ab82b65b.tar.xz | |
memcg: do not replicate get_mem_cgroup_from_mm in __mem_cgroup_try_charge
__mem_cgroup_try_charge duplicates get_mem_cgroup_from_mm for charges
which came without a memcg. The only reason seems to be a tiny
optimization when css_tryget is not called if the charge can be consumed
from the stock. Nevertheless css_tryget is very cheap since it has been
reworked to use per-cpu counting so this optimization doesn't give us
anything these days.
So let's drop the code duplication so that the code is more readable.
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/ata/pata_sil680.c')
0 files changed, 0 insertions, 0 deletions