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authorChristoph Hellwig <hch@lst.de>2009-05-05 15:40:36 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-11 21:36:07 -0400
commit6cfd0148425e528b859b26e436b01f23f6926224 (patch)
tree60e3257053554ff198fe5825e6f12a00c3b4422a /fs/smbfs
parenta9e220f8322e2b0e0b8903fe00265461cffad3f0 (diff)
downloadlinux-6cfd0148425e528b859b26e436b01f23f6926224.tar.gz
push BKL down into ->put_super
Move BKL into ->put_super from the only caller.  A couple of
filesystems had trivial enough ->put_super (only kfree and NULLing of
s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs,
hugetlbfs, omfs, qnx4, shmem, all others got the full treatment.  Most
of them probably don't need it, but I'd rather sort that out individually.
Preferably after all the other BKL pushdowns in that area.

[AV: original used to move lock_super() down as well; these changes are
removed since we don't do lock_super() at all in generic_shutdown_super()
now]
[AV: fuse, btrfs and xfs are known to need no damn BKL, exempt]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/smbfs')
-rw-r--r--fs/smbfs/inode.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index fc27fbfc5397..1402d2d54f52 100644
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -474,6 +474,8 @@ smb_put_super(struct super_block *sb)
 {
 	struct smb_sb_info *server = SMB_SB(sb);
 
+	lock_kernel();
+
 	smb_lock_server(server);
 	server->state = CONN_INVALID;
 	smbiod_unregister_server(server);
@@ -489,6 +491,8 @@ smb_put_super(struct super_block *sb)
 	smb_unlock_server(server);
 	put_pid(server->conn_pid);
 	kfree(server);
+
+	unlock_kernel();
 }
 
 static int smb_fill_super(struct super_block *sb, void *raw_data, int silent)