From ff79544754631cf3d237ff47b7d0e7ab2d211fcf Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 29 Jan 2007 13:19:54 -0800 Subject: [PATCH] [PATCH] fuse: fix bug in control filesystem mount The BUG in fuse_ctl_add_dentry() could be triggered if the control filesystem was unmounted and mounted again while one or more fuse filesystems were present. The fix is to reset the dentry counter in fuse_ctl_kill_sb(). Bug reported by Florent Mertens. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/fuse/control.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/fuse/control.c b/fs/fuse/control.c index 8c58bd453993..1794305f9ed8 100644 --- a/fs/fuse/control.c +++ b/fs/fuse/control.c @@ -193,8 +193,12 @@ static int fuse_ctl_get_sb(struct file_system_type *fs_type, int flags, static void fuse_ctl_kill_sb(struct super_block *sb) { + struct fuse_conn *fc; + mutex_lock(&fuse_mutex); fuse_control_sb = NULL; + list_for_each_entry(fc, &fuse_conn_list, entry) + fc->ctl_ndents = 0; mutex_unlock(&fuse_mutex); kill_litter_super(sb); -- 2.30.2