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Diffstat (limited to 'ipc/mqueue.c')
-rw-r--r--ipc/mqueue.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 35b4f8659904..093551fe66a7 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -411,6 +411,7 @@ static int mqueue_fill_super(struct super_block *sb, struct fs_context *fc)
sb->s_blocksize_bits = PAGE_SHIFT;
sb->s_magic = MQUEUE_MAGIC;
sb->s_op = &mqueue_super_ops;
+ sb->s_d_flags = DCACHE_DONTCACHE;
inode = mqueue_get_inode(sb, ns, S_IFDIR | S_ISVTX | S_IRWXUGO, NULL);
if (IS_ERR(inode))
@@ -482,7 +483,7 @@ static struct vfsmount *mq_create_mount(struct ipc_namespace *ns)
put_user_ns(fc->user_ns);
fc->user_ns = get_user_ns(ctx->ipc_ns->user_ns);
- mnt = fc_mount(fc);
+ mnt = fc_mount_longterm(fc);
put_fs_context(fc);
return mnt;
}
@@ -913,7 +914,7 @@ static int do_mq_open(const char __user *u_name, int oflag, umode_t mode,
ro = mnt_want_write(mnt); /* we'll drop it in any case */
inode_lock(d_inode(root));
- path.dentry = lookup_one_len(name->name, root, strlen(name->name));
+ path.dentry = lookup_noperm(&QSTR(name->name), root);
if (IS_ERR(path.dentry)) {
error = PTR_ERR(path.dentry);
goto out_putfd;
@@ -969,8 +970,7 @@ SYSCALL_DEFINE1(mq_unlink, const char __user *, u_name)
if (err)
goto out_name;
inode_lock_nested(d_inode(mnt->mnt_root), I_MUTEX_PARENT);
- dentry = lookup_one_len(name->name, mnt->mnt_root,
- strlen(name->name));
+ dentry = lookup_noperm(&QSTR(name->name), mnt->mnt_root);
if (IS_ERR(dentry)) {
err = PTR_ERR(dentry);
goto out_unlock;