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| author | Paul Menage <menage@google.com> | 2008-04-29 10:00:02 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 17:06:08 +0200 |
| commit | c64745cf0f34f2cb08fc28c93d844e583d0d591d (patch) | |
| tree | d957cd0cd83917ee69c72eb92d1db0c4cb2ed2bc /mm | |
| parent | CGroup API files: add cgroup map data type (diff) | |
| download | linux-c64745cf0f34f2cb08fc28c93d844e583d0d591d.tar.xz linux-c64745cf0f34f2cb08fc28c93d844e583d0d591d.zip | |
CGroup API files: use cgroup map for memcontrol stats file
Remove the seq_file boilerplate used to construct the memcontrol stats map,
and instead use the new map representation for cgroup control files
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 | 28 |
1 files changed, 6 insertions, 22 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index e227d7c5989f..496ab700e0a4 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -899,9 +899,9 @@ static const struct mem_cgroup_stat_desc { [MEM_CGROUP_STAT_RSS] = { "rss", PAGE_SIZE, }, }; -static int mem_control_stat_show(struct seq_file *m, void *arg) +static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft, + struct cgroup_map_cb *cb) { - struct cgroup *cont = m->private; struct mem_cgroup *mem_cont = mem_cgroup_from_cont(cont); struct mem_cgroup_stat *stat = &mem_cont->stat; int i; @@ -911,8 +911,7 @@ static int mem_control_stat_show(struct seq_file *m, void *arg) val = mem_cgroup_read_stat(stat, i); val *= mem_cgroup_stat_desc[i].unit; - seq_printf(m, "%s %lld\n", mem_cgroup_stat_desc[i].msg, - (long long)val); + cb->fill(cb, mem_cgroup_stat_desc[i].msg, val); } /* showing # of active pages */ { @@ -922,27 +921,12 @@ static int mem_control_stat_show(struct seq_file *m, void *arg) MEM_CGROUP_ZSTAT_INACTIVE); active = mem_cgroup_get_all_zonestat(mem_cont, MEM_CGROUP_ZSTAT_ACTIVE); - seq_printf(m, "active %ld\n", (active) * PAGE_SIZE); - seq_printf(m, "inactive %ld\n", (inactive) * PAGE_SIZE); + cb->fill(cb, "active", (active) * PAGE_SIZE); + cb->fill(cb, "inactive", (inactive) * PAGE_SIZE); } return 0; } -static const struct file_operations mem_control_stat_file_operations = { - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int mem_control_stat_open(struct inode *unused, struct file *file) -{ - /* XXX __d_cont */ - struct cgroup *cont = file->f_dentry->d_parent->d_fsdata; - - file->f_op = &mem_control_stat_file_operations; - return single_open(file, mem_control_stat_show, cont); -} - static struct cftype mem_cgroup_files[] = { { .name = "usage_in_bytes", @@ -967,7 +951,7 @@ static struct cftype mem_cgroup_files[] = { }, { .name = "stat", - .open = mem_control_stat_open, + .read_map = mem_control_stat_show, }, }; |