From 4a33854257764c2ec6337ee0c8ecafb64f8e29e1 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 29 Aug 2011 11:01:31 -0400 Subject: [PATCH] Btrfs: set truncate block rsv's size While debugging a different issue I noticed that we were always reserving space when we tried to use our truncate block rsv's. This is because they didn't have a ->size value, so use_block_rsv just assumes there is nothing reserved and it does a reserve_metadata_bytes. This is because btrfs_check_block_rsv() doesn't actually add to the size of the block rsv. That seems to be the right thing to do so set ->size to the minimum truncate size we need, since we will always only refill to that size anyway, and this way everything works out correctly. Signed-off-by: Josef Bacik --- fs/btrfs/inode.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index e40b9239660d..06ae5b173fd7 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3561,6 +3561,7 @@ void btrfs_evict_inode(struct inode *inode) btrfs_orphan_del(NULL, inode); goto no_delete; } + rsv->size = min_size; btrfs_i_size_write(inode, 0); @@ -6530,6 +6531,7 @@ static int btrfs_truncate(struct inode *inode) rsv = btrfs_alloc_block_rsv(root); if (!rsv) return -ENOMEM; + rsv->size = min_size; /* * 1 for the truncate slack space -- 2.34.1