From 7816030eb48e00a36ecdc23d484b960922feee67 Mon Sep 17 00:00:00 2001 From: Wang Shilong Date: Thu, 17 Jul 2014 11:44:10 +0800 Subject: [PATCH] Btrfs: fall into nocompression codes quickly if possible If flag NOCOMPRESS is set which means bad compression ratio, we could avoid call cow_file_range_async() for this case earlier. Signed-off-by: Wang Shilong Reviewed-by: David Sterba Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 48a2886842b5..d1c69beb054f 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1488,7 +1488,6 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page, unsigned long *nr_written) { int ret; - struct btrfs_root *root = BTRFS_I(inode)->root; int force_cow = need_force_cow(inode, start, end); if (BTRFS_I(inode)->flags & BTRFS_INODE_NODATACOW && !force_cow) { @@ -1497,9 +1496,7 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page, } else if (BTRFS_I(inode)->flags & BTRFS_INODE_PREALLOC && !force_cow) { ret = run_delalloc_nocow(inode, locked_page, start, end, page_started, 0, nr_written); - } else if (!btrfs_test_opt(root, COMPRESS) && - !(BTRFS_I(inode)->force_compress) && - !(BTRFS_I(inode)->flags & BTRFS_INODE_COMPRESS)) { + } else if (!inode_need_compress(inode)) { ret = cow_file_range(inode, locked_page, start, end, page_started, nr_written, 1); } else { -- 2.20.1