From: Greg KH <gre...@linuxfoundation.org>
3.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tejun Heo <t...@kernel.org>
commit ce27e317ba22b359bde02216afab934dac3af095 upstream.
While refactoring cgroup file removal path, 05ef1d7c4a "cgroup:
introduce struct cfent" incorrectly changed the @dir argument of
simple_unlink() to the inode of the file being deleted instead of that
of the containing directory.
The effect of this bug is minor - ctime and mtime of the parent
weren't properly updated on file deletion.
Fix it by using @cgrp->dentry->d_inode instead.
Signed-off-by: Tejun Heo <t...@kernel.org>
Reported-by: Al Viro <v...@zeniv.linux.org.uk>
Acked-by: Li Zefan <lize...@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
kernel/cgroup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -954,7 +954,7 @@ static int cgroup_rm_file(struct cgroup
dget(d);
d_delete(d);
- simple_unlink(d->d_inode, d);
+ simple_unlink(cgrp->dentry->d_inode, d);
list_del_init(&cfe->node);
dput(d);
--
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