From ce397c0616de9bfb678569f1dfa655838a711594 Mon Sep 17 00:00:00 2001 From: Liu Hui Date: Mon, 1 Dec 2008 20:31:40 -0500 Subject: [PATCH] Btrfs: Fix cow semantic in run_delalloc_nocow() The file preallocation code reversed the logic to force nodatacow. This fixes it. --- fs/btrfs/inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 7a8ad42..b3d4078 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1114,10 +1114,10 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page, if (btrfs_test_opt(root, NODATACOW) || btrfs_test_flag(inode, NODATACOW)) ret = run_delalloc_nocow(inode, locked_page, start, end, - page_started, 0, nr_written); + page_started, 1, nr_written); else if (btrfs_test_flag(inode, PREALLOC)) ret = run_delalloc_nocow(inode, locked_page, start, end, - page_started, 1, nr_written); + page_started, 0, nr_written); else ret = cow_file_range_async(inode, locked_page, start, end, page_started, nr_written); -- 2.7.4