[PATCH] autofs3: Make sure all dentries refs are released before calling kill_anon_super()
Make sure all dentries refs are released before calling kill_anon_super()
so that the assumption that generic_shutdown_super() can completely destroy
the dentry tree for there will be no external references holds true.
What was being done in the put_super() superblock op, is now done in the
kill_sb() filesystem op instead, prior to calling kill_anon_super().
The call to shrink_dcache_sb() is removed as it is redundant since
shrink_dcache_for_umount() will now be called after the cleanup routine.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Ian Kent <raven@themaw.net>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c
index 2c9759ba..54c518c 100644
--- a/fs/autofs/inode.c
+++ b/fs/autofs/inode.c
@@ -20,7 +20,7 @@
#include "autofs_i.h"
#include <linux/module.h>
-static void autofs_put_super(struct super_block *sb)
+void autofs_kill_sb(struct super_block *sb)
{
struct autofs_sb_info *sbi = autofs_sbi(sb);
unsigned int n;
@@ -37,13 +37,13 @@
kfree(sb->s_fs_info);
DPRINTK(("autofs: shutting down\n"));
+ kill_anon_super(sb);
}
static void autofs_read_inode(struct inode *inode);
static struct super_operations autofs_sops = {
.read_inode = autofs_read_inode,
- .put_super = autofs_put_super,
.statfs = simple_statfs,
};