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| author |   Dongsheng Yang <yangds.fnst@cn.fujitsu.com> | 2015-12-21 19:14:42 +0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-03-21 10:59:29 +0100 |
| commit | 1a736b77a3f50910843d076623204ba6e5057dc1 (patch) | |
| tree | a50c42c957b5b3ebb15d727001669276e7521799 /kernel/sched/cpuacct.c | |
| parent | sched/fair: Add comments to explain select_idle_sibling() (diff) | |
| download | linux-dev-1a736b77a3f50910843d076623204ba6e5057dc1.tar.xz linux-dev-1a736b77a3f50910843d076623204ba6e5057dc1.zip | |
sched/cpuacct: Rename parameter in cpuusage_write() for readability
The name of the 'reset' parameter to cpuusage_write() is quite confusing,
because the only valid value we allow is '0', so !reset is actually the
case that resets ...
Rename it to 'val' and explain it in a comment that we only allow 0.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: cgroups@vger.kernel.org
Cc: tj@kernel.org
Link: http://lkml.kernel.org/r/1450696483-2864-1-git-send-email-yangds.fnst@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/cpuacct.c')
| -rw-r--r-- | kernel/sched/cpuacct.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c index dd7cbb55bbf2..9c2bbf7efa1a 100644 --- a/kernel/sched/cpuacct.c +++ b/kernel/sched/cpuacct.c @@ -145,13 +145,16 @@ static u64 cpuusage_read(struct cgroup_subsys_state *css, struct cftype *cft) } static int cpuusage_write(struct cgroup_subsys_state *css, struct cftype *cft, - u64 reset) + u64 val) { struct cpuacct *ca = css_ca(css); int err = 0; int i; - if (reset) { + /* + * Only allow '0' here to do a reset. + */ + if (val) { err = -EINVAL; goto out; } |