From d9b0218f6cb682aa6a4ada2bfc5a25fdf3018563 Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Thu, 16 Feb 2012 18:34:39 +0800 Subject: [PATCH] Btrfs: fix a bug on overcommit stuff When overcommitting, we should check the sum of pinned space and bytes for delayed item. Signed-off-by: Liu Bo --- fs/btrfs/extent-tree.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 60bfe2d68547..dc083f55bcfd 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3611,12 +3611,15 @@ static int may_commit_transaction(struct btrfs_root *root, if (space_info != delayed_rsv->space_info) return -ENOSPC; + spin_lock(&space_info->lock); spin_lock(&delayed_rsv->lock); - if (delayed_rsv->size < bytes) { + if (space_info->bytes_pinned + delayed_rsv->size < bytes) { spin_unlock(&delayed_rsv->lock); + spin_unlock(&space_info->lock); return -ENOSPC; } spin_unlock(&delayed_rsv->lock); + spin_unlock(&space_info->lock); commit: trans = btrfs_join_transaction(root); -- 2.20.1