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| author | aalexandrovich <88376726+aalexandrovich@users.noreply.github.com> | 2021-08-23 16:44:22 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-08-23 16:44:22 +0300 |
| commit | 11e4e66efd440216032f53ee7e5ca08cd263a292 (patch) | |
| tree | 630237ec37435734f29cc4ea2c91a75813d61053 /fs/btrfs/inode.c | |
| parent | 96b18047a7172037ff4206720f4e889670030b41 (diff) | |
| parent | e22ce8eb631bdc47a4a4ea7ecf4e4ba499db4f93 (diff) | |
Merge branch 'torvalds:master' into master
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 0117d867ecf8..06f9f167222b 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -9226,8 +9226,14 @@ static int btrfs_rename_exchange(struct inode *old_dir, bool dest_log_pinned = false; bool need_abort = false; - /* we only allow rename subvolume link between subvolumes */ - if (old_ino != BTRFS_FIRST_FREE_OBJECTID && root != dest) + /* + * For non-subvolumes allow exchange only within one subvolume, in the + * same inode namespace. Two subvolumes (represented as directory) can + * be exchanged as they're a logical link and have a fixed inode number. + */ + if (root != dest && + (old_ino != BTRFS_FIRST_FREE_OBJECTID || + new_ino != BTRFS_FIRST_FREE_OBJECTID)) return -EXDEV; /* close the race window with snapshot create/destroy ioctl */ |