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CGroup API files: drop mem_cgroup_force_empty()

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This function isn't needed - a NULL pointer in the cftype read function will
result in the same EINVAL response to userspace.

Signed-off-by: Paul Menage <menage@google.com>
Cc: "Li Zefan" <lizf@cn.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "YAMAMOTO Takashi" <yamamoto@valinux.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paul Menage 2008-04-29 01:00:03 -07:00 committed by Linus Torvalds
parent c64745cf0f
commit c27e8818a0
1 changed files with 0 additions and 12 deletions
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12
mm/memcontrol.c
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@ -880,17 +880,6 @@ static ssize_t mem_force_empty_write(struct cgroup *cont,
return ret; return ret;
} }
/*
* Note: This should be removed if cgroup supports write-only file.
*/
static ssize_t mem_force_empty_read(struct cgroup *cont,
struct cftype *cft,
struct file *file, char __user *userbuf,
size_t nbytes, loff_t *ppos)
{
return -EINVAL;
}
static const struct mem_cgroup_stat_desc { static const struct mem_cgroup_stat_desc {
const char *msg; const char *msg;
u64 unit; u64 unit;
@ -947,7 +936,6 @@ static struct cftype mem_cgroup_files[] = {
{ {
.name = "force_empty", .name = "force_empty",
.write = mem_force_empty_write, .write = mem_force_empty_write,
.read = mem_force_empty_read,
}, },
{ {
.name = "stat", .name = "stat",