Commit-ID: 1a736b77a3f50910843d076623204ba6e5057dc1
Gitweb: http://git.kernel.org/tip/1a736b77a3f50910843d076623204ba6e5057dc1
Author: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
AuthorDate: Mon, 21 Dec 2015 19:14:42 +0800
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 21 Mar 2016 10:59:29 +0100
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@xxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: cgroups@xxxxxxxxxxxxxxx
Cc: tj@xxxxxxxxxx
Link: http://lkml.kernel.org/r/1450696483-2864-1-git-send-email-yangds.fnst@xxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
kernel/sched/cpuacct.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c
index dd7cbb5..9c2bbf7 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;
}
--
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