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| author | Miklos Szeredi <miklos@szeredi.hu> | 2007-01-29 13:19:54 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-01-30 08:26:45 -0800 |
| commit | ff79544754631cf3d237ff47b7d0e7ab2d211fcf (patch) | |
| tree | aec89c9cfbe2f0652b121188d6cefadd11dcf881 | |
| parent | 436d1654b341e55a73cada13cce3142b619f23bb (diff) | |
| download | lwn-ff79544754631cf3d237ff47b7d0e7ab2d211fcf.tar.gz lwn-ff79544754631cf3d237ff47b7d0e7ab2d211fcf.zip | |
[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 <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/fuse/control.c | 4 |
1 files changed, 4 insertions, 0 deletions
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); |