diff options
Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r-- | fs/btrfs/ioctl.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 0f81d67cdc8..145b2c75ab8 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2093,7 +2093,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, err = mutex_lock_killable_nested(&dir->i_mutex, I_MUTEX_PARENT); if (err == -EINTR) - goto out; + goto out_drop_write; dentry = lookup_one_len(vol_args->name, parent, namelen); if (IS_ERR(dentry)) { err = PTR_ERR(dentry); @@ -2235,6 +2235,7 @@ out_dput: dput(dentry); out_unlock_dir: mutex_unlock(&dir->i_mutex); +out_drop_write: mnt_drop_write_file(file); out: kfree(vol_args); @@ -3299,6 +3300,9 @@ static long btrfs_ioctl_dev_replace(struct btrfs_root *root, void __user *arg) switch (p->cmd) { case BTRFS_IOCTL_DEV_REPLACE_CMD_START: + if (root->fs_info->sb->s_flags & MS_RDONLY) + return -EROFS; + if (atomic_xchg( &root->fs_info->mutually_exclusive_operation_running, 1)) { |