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authorKirill A. Shutemov <kirill@shutemov.name>2010-03-10 15:22:34 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-12 15:52:37 -0800
commita0a4db548edcce067c1201ef25cf2bc29f32dca4 (patch)
tree6f8139a582179666cd248d978332ed0e32ad9f0f /include/linux
parent4ab78683c17d739c2a2077141dcf81a02b7fb57e (diff)
cgroups: remove events before destroying subsystem state objects
Events should be removed after rmdir of cgroup directory, but before destroying subsystem state objects. Let's take reference to cgroup directory dentry to do that. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hioryu@jp.fujitsu.com> Cc: Paul Menage <menage@google.com> Acked-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: Dan Malek <dan@embeddedalley.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/cgroup.h3
1 files changed, 0 insertions, 3 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index b4f2201321c..b8ad1ea9958 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -396,9 +396,6 @@ struct cftype {
* closes the eventfd or on cgroup removing.
* This callback must be implemented, if you want provide
* notification functionality.
- *
- * Be careful. It can be called after destroy(), so you have
- * to keep all nesessary data, until all events are removed.
*/
int (*unregister_event)(struct cgroup *cgrp, struct cftype *cft,
struct eventfd_ctx *eventfd);