From a798a8ecf30bf36d1a92e71bd803626c54ea59c0 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 20 Mar 2015 14:02:09 -0400 Subject: btrfs: cleanup orphans while looking up default subvolume [ Upstream commit 727b9784b6085c99c2f836bf4fcc2848dc9cf904 ] Orphans in the fs tree are cleaned up via open_ctree and subvolume orphans are cleaned via btrfs_lookup_dentry -- except when a default subvolume is in use. The name for the default subvolume uses a manual lookup that doesn't trigger orphan cleanup and needs to trigger it manually as well. This doesn't apply to the remount case since the subvolumes are cleaned up by walking the root radix tree. Signed-off-by: Jeff Mahoney Reviewed-by: David Sterba Signed-off-by: Chris Mason Signed-off-by: Sasha Levin --- fs/btrfs/super.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'fs/btrfs') diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index cde9c03e3913..2105555657fc 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -901,6 +901,15 @@ find_root: if (IS_ERR(new_root)) return ERR_CAST(new_root); + if (!(sb->s_flags & MS_RDONLY)) { + int ret; + down_read(&fs_info->cleanup_work_sem); + ret = btrfs_orphan_cleanup(new_root); + up_read(&fs_info->cleanup_work_sem); + if (ret) + return ERR_PTR(ret); + } + dir_id = btrfs_root_dirid(&new_root->root_item); setup_root: location.objectid = dir_id; -- cgit v1.2.3