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authorLi Zefan <lizf@cn.fujitsu.com>2009-04-03 03:57:29 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-03 06:04:54 +0400
commit099fca3225b39f7a3ed853036038054172b55581 (patch)
treec7a8863f9ca8a5c745297e9ee43b63494b6022d1 /include
parentb6719ec1ad54e47e40633b19703f2c1254708842 (diff)
downloadlinux-099fca3225b39f7a3ed853036038054172b55581.tar.xz
cgroups: show correct file mode
We have some read-only files and write-only files, but currently they are all set to 0644, which is counter-intuitive and cause trouble for some cgroup tools like libcgroup. This patch adds 'mode' to struct cftype to allow cgroup subsys to set it's own files' file mode, and for the most cases cft->mode can be default to 0 and cgroup will figure out proper mode. Acked-by: Paul Menage <menage@google.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/cgroup.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 7d824b80b3d7..b2816fba5306 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -258,6 +258,11 @@ struct cftype {
*/
char name[MAX_CFTYPE_NAME];
int private;
+ /*
+ * If not 0, file mode is set to this value, otherwise it will
+ * be figured out automatically
+ */
+ mode_t mode;
/*
* If non-zero, defines the maximum length of string that can