From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-we0-f171.google.com ([74.125.82.171]:42188 "EHLO mail-we0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752210Ab3IVUzD (ORCPT ); Sun, 22 Sep 2013 16:55:03 -0400 Received: by mail-we0-f171.google.com with SMTP id t61so2335642wes.2 for ; Sun, 22 Sep 2013 13:55:02 -0700 (PDT) From: Filipe David Borba Manana To: linux-btrfs@vger.kernel.org Cc: Filipe David Borba Manana Subject: [PATCH] Btrfs: fix tracking of orphan inode count Date: Sun, 22 Sep 2013 21:54:55 +0100 Message-Id: <1379883295-7275-1-git-send-email-fdmanana@gmail.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: In inode.c:btrfs_orphan_add() if we failed to insert the orphan item, we would return without decrementing the orphan count that we just incremented before attempting the insertion, leaving the orphan inode count wrong. In inode.c:btrfs_orphan_del(), we were decrementing the inode orphan count if the bit BTRFS_INODE_ORPHAN_META_RESERVED was set, which is logically wrong because it should be decremented if the bit BTRFS_INODE_HAS_ORPHAN_ITEM was set - after all we increment the count when we set the bit BTRFS_INODE_HAS_ORPHAN_ITEM elsewhere. Signed-off-by: Filipe David Borba Manana --- fs/btrfs/inode.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 40a32ed..c462bd1 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2969,6 +2969,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode) if (insert >= 1) { ret = btrfs_insert_orphan_item(trans, root, btrfs_ino(inode)); if (ret) { + atomic_dec(&root->orphan_inodes); if (reserve) { clear_bit(BTRFS_INODE_ORPHAN_META_RESERVED, &BTRFS_I(inode)->runtime_flags); @@ -3018,14 +3019,16 @@ static int btrfs_orphan_del(struct btrfs_trans_handle *trans, release_rsv = 1; spin_unlock(&root->orphan_lock); - if (trans && delete_item) - ret = btrfs_del_orphan_item(trans, root, btrfs_ino(inode)); - - if (release_rsv) { - btrfs_orphan_release_metadata(inode); + if (delete_item) { atomic_dec(&root->orphan_inodes); + if (trans) + ret = btrfs_del_orphan_item(trans, root, + btrfs_ino(inode)); } + if (release_rsv) + btrfs_orphan_release_metadata(inode); + return ret; } -- 1.7.9.5