From 2c3daa722b624eaf0c5ea60e4f180bd0684542e2 Mon Sep 17 00:00:00 2001 From: Paul Menage Date: Tue, 29 Apr 2008 00:59:58 -0700 Subject: 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 Cc: "Li Zefan" Cc: Balbir Singh Cc: Paul Jackson Cc: Pavel Emelyanov Cc: KAMEZAWA Hiroyuki Cc: "YAMAMOTO Takashi" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) (limited to 'mm/memcontrol.c') diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 2e0bfc93484..e227d7c5989 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", -- cgit v1.2.3