From 3a1abec9f6880cf406593c392636199ea1c6c917 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 17 Dec 2009 15:47:17 -0500 Subject: [PATCH] Btrfs: make sure fallocate properly starts a transaction The recent patch to make fallocate enospc friendly would send down a NULL trans handle to the allocator. This moves the transaction start to properly fix things. Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index da76cad92ecf..5440bab23635 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5802,23 +5802,23 @@ static int prealloc_file_range(struct inode *inode, u64 start, u64 end, while (num_bytes > 0) { alloc_size = min(num_bytes, root->fs_info->max_extent); + trans = btrfs_start_transaction(root, 1); + ret = btrfs_reserve_extent(trans, root, alloc_size, root->sectorsize, 0, alloc_hint, (u64)-1, &ins, 1); if (ret) { WARN_ON(1); - break; + goto stop_trans; } ret = btrfs_reserve_metadata_space(root, 3); if (ret) { btrfs_free_reserved_extent(root, ins.objectid, ins.offset); - break; + goto stop_trans; } - trans = btrfs_start_transaction(root, 1); - ret = insert_reserved_file_extent(trans, inode, cur_offset, ins.objectid, ins.offset, ins.offset, @@ -5847,6 +5847,11 @@ static int prealloc_file_range(struct inode *inode, u64 start, u64 end, btrfs_unreserve_metadata_space(root, 3); } return ret; + +stop_trans: + btrfs_end_transaction(trans, root); + return ret; + } static long btrfs_fallocate(struct inode *inode, int mode,