Hello, This is v2 of cgroup.populated patchset changes from v1[L] are,
* Rebased on top of v3.15-rc1 * Patch description updated for the third patch as per Serge. (inotify folks, can you please review the second patch which hooks up kernfs_notify() with fsnotify? It works but directly invoking fsnotify_parent() and fsnotify() feels a bit dirty. Maybe something like fsnotify_notify_modify_by_dentry() would make more sense?) cgroup users often need a way to determine when a cgroup's subhierarchy becomes empty so that it can be cleaned up. cgroup currently provides release_agent for it; unfortunately, this mechanism is riddled with issues. This patchset implements a replacement mechanism "cgroup.subtree_populated" which can be used to monitor whether the cgroup's subhierarchy has tasks in it or not and triggers poll and [di]notify events when its content changes. This patchset contains the following three patches. 0001-kernfs-implement-kernfs_root-supers-list.patch 0002-kernfs-make-kernfs_notify-trigger-inotify-events-too.patch 0003-cgroup-implement-cgroup.subtree_populated-for-the-de.patch 0001-0002 add [di]notify notification to kernfs_notify(). 0003 implements cgroup.subtree_populated. This patchset is on top of "cgroup: implement unified hierarchy, v2" patchset[1] and availalbe in the following git branch. git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-populated diffstat follows. fs/kernfs/dir.c | 1 fs/kernfs/file.c | 41 +++++++++++++++++++++++---- fs/kernfs/kernfs-internal.h | 5 +++ fs/kernfs/mount.c | 11 +++++++ include/linux/cgroup.h | 15 ++++++++++ include/linux/kernfs.h | 4 ++ kernel/cgroup.c | 65 +++++++++++++++++++++++++++++++++++++++++--- 7 files changed, 132 insertions(+), 10 deletions(-) Thanks. -- tejun [L] http://lkml.kernel.org/g/1397056052-2829-1-git-send-email...@kernel.org [1] http://lkml.kernel.org/g/1397511430-2673-1-git-send-email...@kernel.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
