cifs: move cifs_umount() call into ->kill_sb()
instead of calling it manually in case if cifs_read_super() fails
to set ->s_root, just call it from ->kill_sb(). cifs_put_super()
is gone now *and* we have cifs_sb shutdown and destruction done
after the superblock is gone from ->s_instances.
Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 4004bc6..15de456 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -163,30 +163,14 @@
if (inode)
iput(inode);
- cifs_umount(cifs_sb);
return rc;
}
-static void
-cifs_put_super(struct super_block *sb)
-{
- int rc = 0;
- struct cifs_sb_info *cifs_sb;
-
- cFYI(1, "In cifs_put_super");
- cifs_sb = CIFS_SB(sb);
- if (cifs_sb == NULL) {
- cFYI(1, "Empty cifs superblock info passed to unmount");
- return;
- }
-
- cifs_umount(cifs_sb);
-}
-
static void cifs_kill_sb(struct super_block *sb)
{
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
kill_anon_super(sb);
+ cifs_umount(cifs_sb);
kfree(cifs_sb->mountdata);
unload_nls(cifs_sb->local_nls);
kfree(cifs_sb);
@@ -537,7 +521,6 @@
}
static const struct super_operations cifs_super_ops = {
- .put_super = cifs_put_super,
.statfs = cifs_statfs,
.alloc_inode = cifs_alloc_inode,
.destroy_inode = cifs_destroy_inode,