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authorTejun Heo <tj@kernel.org>2014-05-13 12:16:21 -0400
committerTejun Heo <tj@kernel.org>2014-05-13 12:16:21 -0400
commit6770c64e5c8da4705d1f0973bdeb5c2bf4f3a404 (patch)
tree29e16383df94d4a31f6fec2f49f5ae84c369f911 /kernel/cgroup.c
parent451af504df0c62f695a69b83c250486e77c66378 (diff)
downloadop-kernel-dev-6770c64e5c8da4705d1f0973bdeb5c2bf4f3a404.zip
op-kernel-dev-6770c64e5c8da4705d1f0973bdeb5c2bf4f3a404.tar.gz
cgroup: replace cftype->trigger() with cftype->write()
cftype->trigger() is pointless. It's trivial to ignore the input buffer from a regular ->write() operation. Convert all ->trigger() users to ->write() and remove ->trigger(). This patch doesn't introduce any visible behavior changes. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Li Zefan <lizefan@huawei.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz>
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 2a88ce7..2f16aab 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1034,8 +1034,7 @@ static umode_t cgroup_file_mode(const struct cftype *cft)
if (cft->read_u64 || cft->read_s64 || cft->seq_show)
mode |= S_IRUGO;
- if (cft->write_u64 || cft->write_s64 || cft->write ||
- cft->trigger)
+ if (cft->write_u64 || cft->write_s64 || cft->write)
mode |= S_IWUSR;
return mode;
@@ -2750,8 +2749,6 @@ static ssize_t cgroup_file_write(struct kernfs_open_file *of, char *buf,
ret = kstrtoll(buf, 0, &v);
if (!ret)
ret = cft->write_s64(css, cft, v);
- } else if (cft->trigger) {
- ret = cft->trigger(css, (unsigned int)cft->private);
} else {
ret = -EINVAL;
}
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