CIFS: Remove spinlock dependence in brlock processing

Now we need to lock/unlock a spinlock while processing brlock ops
on the inode. Move brlocks of a fid to a separate list and attach
all such lists to the inode. This let us not hold a spinlock.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>

fs/cifs/cifsfs.c

@@ -233,6 +233,7 @@ cifs_alloc_inode(struct super_block *sb)
 	   to zero by the VFS */
 /*	cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME;*/
 	INIT_LIST_HEAD(&cifs_inode->openFileList);
+	INIT_LIST_HEAD(&cifs_inode->llist);
 	return &cifs_inode->vfs_inode;
 }