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| author | Paul Menage <menage@google.com> | 2008-04-29 00:59:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 08:06:08 -0700 |
| commit | 2c3daa722b624eaf0c5ea60e4f180bd0684542e2 (patch) | |
| tree | afdb7e2068b018569dda8415b184b6de2ab330a6 /mm | |
| parent | 2c7eabf37647dd459d555e76954b4de87be2321f (diff) | |
| download | lwn-2c3daa722b624eaf0c5ea60e4f180bd0684542e2.tar.gz lwn-2c3daa722b624eaf0c5ea60e4f180bd0684542e2.zip | |
CGroup API files: use read_u64 in memory controller
Update the memory controller to use read_u64 for its limit/usage/failcnt
control files, calling the new res_counter_read_u64() function.
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>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memcontrol.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 2e0bfc93484b..e227d7c5989f 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -853,13 +853,10 @@ static int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp) return 0; } -static ssize_t mem_cgroup_read(struct cgroup *cont, - struct cftype *cft, struct file *file, - char __user *userbuf, size_t nbytes, loff_t *ppos) +static u64 mem_cgroup_read(struct cgroup *cont, struct cftype *cft) { - return res_counter_read(&mem_cgroup_from_cont(cont)->res, - cft->private, userbuf, nbytes, ppos, - NULL); + return res_counter_read_u64(&mem_cgroup_from_cont(cont)->res, + cft->private); } static ssize_t mem_cgroup_write(struct cgroup *cont, struct cftype *cft, @@ -950,18 +947,18 @@ static struct cftype mem_cgroup_files[] = { { .name = "usage_in_bytes", .private = RES_USAGE, - .read = mem_cgroup_read, + .read_u64 = mem_cgroup_read, }, { .name = "limit_in_bytes", .private = RES_LIMIT, .write = mem_cgroup_write, - .read = mem_cgroup_read, + .read_u64 = mem_cgroup_read, }, { .name = "failcnt", .private = RES_FAILCNT, - .read = mem_cgroup_read, + .read_u64 = mem_cgroup_read, }, { .name = "force_empty", |