Commit 1191a2bd authored Sep 05, 2013 by Miklos Szeredi Committed by Al Viro Sep 05, 2013

gfs2: use check_submounts_and_drop()



Do have_submounts(), shrink_dcache_parent() and d_drop() atomically.

check_submounts_and_drop() can deal with negative dentries and
non-directories as well.

Non-directories can also be mounted on.  And just like directories we don't
want these to disappear with invalidation.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

parent ba812380

fs/gfs2/dentry.c

+3 −6

Original line number	Diff line number	Diff line
		@@ -93,12 +93,9 @@ invalid_gunlock:
		if (!had_lock)
		gfs2_glock_dq_uninit(&d_gh);
		invalid:
		if (inode && S_ISDIR(inode->i_mode)) {
		if (have_submounts(dentry))
		if (check_submounts_and_drop(dentry) != 0)
		goto valid;
		shrink_dcache_parent(dentry);
		}
		d_drop(dentry);

		dput(parent);
		return 0;