summaryrefslogtreecommitdiff
path: root/fs/fuse/inode.c
diff options
context:
space:
mode:
authorMiklos Szeredi <mszeredi@suse.cz>2013-10-01 18:44:54 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-10-25 07:41:37 +0400
commitb70a80e7a133a0c86f2fa078e7c144597c516415 (patch)
tree378dbeeafc1510fb326eda10e1f48085be098f6c /fs/fuse/inode.c
parent94e92a6e772e009e27083a7f42d49a179e5f668c (diff)
downloadlinux-b70a80e7a133a0c86f2fa078e7c144597c516415.tar.xz
vfs: introduce d_instantiate_no_diralias()
...which just returns -EBUSY if a directory alias would be created. This is to be used by fuse mkdir to make sure that a buggy or malicious userspace filesystem doesn't do anything nasty. Previously fuse used a private mutex for this purpose, which can now go away. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/fuse/inode.c')
-rw-r--r--fs/fuse/inode.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index a8ce6dab60a0..1c15613c64f8 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -565,7 +565,6 @@ void fuse_conn_init(struct fuse_conn *fc)
{
memset(fc, 0, sizeof(*fc));
spin_lock_init(&fc->lock);
- mutex_init(&fc->inst_mutex);
init_rwsem(&fc->killsb);
atomic_set(&fc->count, 1);
init_waitqueue_head(&fc->waitq);
@@ -596,7 +595,6 @@ void fuse_conn_put(struct fuse_conn *fc)
if (atomic_dec_and_test(&fc->count)) {
if (fc->destroy_req)
fuse_request_free(fc->destroy_req);
- mutex_destroy(&fc->inst_mutex);
fc->release(fc);
}
}