From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arne Jansen Subject: [PATCH] 'unused' calculated with wrong sign. Date: Sat, 13 Nov 2010 00:17:56 +0100 Message-ID: <1289603876-28542-1-git-send-email-sensille@gmx.net> Cc: josef@redhat.com To: linux-btrfs@vger.kernel.org Return-path: List-ID: 'unused' calculated with wrong sign in reserve_metadata_bytes(). This might have lead to unwanted over-reservations. Signed-off-by: Arne Jansen --- fs/btrfs/extent-tree.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a541bc8..ddaf634 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3413,7 +3413,7 @@ again: * our reservation. */ if (unused <= space_info->total_bytes) { - unused -= space_info->total_bytes; + unused = space_info->total_bytes - unused; if (unused >= num_bytes) { if (!reserved) space_info->bytes_reserved += orig_bytes; -- 1.7.2.2