Commit ab9737bd authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: hold a ref on the root in merge_reloc_roots 



We look up the corresponding root for the reloc root, we need to hold a
ref while we're messing with it.

Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent db2c2ca2

fs/btrfs/relocation.c

+2 −0
Original line number Diff line number Diff line
@@ -2592,9 +2592,11 @@ void merge_reloc_roots(struct reloc_control *rc) 
			root = read_fs_root(fs_info,

					    reloc_root->root_key.offset);

			BUG_ON(IS_ERR(root));

			BUG_ON(!btrfs_grab_fs_root(root));

			BUG_ON(root->reloc_root != reloc_root);



			ret = merge_reloc_root(rc, root);

			btrfs_put_fs_root(root);

			if (ret) {

				if (list_empty(&reloc_root->root_list))

					list_add_tail(&reloc_root->root_list,