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| author | Miklos Szeredi | 2013-10-01 16:44:54 +0200 |
|---|---|---|
| committer | Al Viro | 2013-10-25 05:41:37 +0200 |
| commit | b70a80e7a133a0c86f2fa078e7c144597c516415 (patch) | |
| tree | 378dbeeafc1510fb326eda10e1f48085be098f6c /fs/fuse/fuse_i.h | |
| parent | move taking vfsmount_lock down into prepend_path() (diff) | |
| download | kernel-qcow2-linux-b70a80e7a133a0c86f2fa078e7c144597c516415.tar.gz kernel-qcow2-linux-b70a80e7a133a0c86f2fa078e7c144597c516415.tar.xz kernel-qcow2-linux-b70a80e7a133a0c86f2fa078e7c144597c516415.zip | |
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/fuse_i.h')
| -rw-r--r-- | fs/fuse/fuse_i.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 5b9e6f3b6aef..fe446c222e3f 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -374,9 +374,6 @@ struct fuse_conn { /** Lock protecting accessess to members of this structure */ spinlock_t lock; - /** Mutex protecting against directory alias creation */ - struct mutex inst_mutex; - /** Refcount */ atomic_t count; |