From 4d1b5fb4d7075f862848dbff8873e22382abd482 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Wed, 20 Aug 2008 09:44:52 -0400 Subject: Btrfs: Lookup readpage checksums on bio submission again This optimization had been removed because I thought it was triggering csum errors. The real cause of the errors was elsewhere, and so this optimization is back. Signed-off-by: Chris Mason --- fs/btrfs/file-item.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/btrfs/file-item.c') diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 9454e0a07c89..f861bd506928 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -134,7 +134,6 @@ int btrfs_lookup_file_extent(struct btrfs_trans_handle *trans, return ret; } -#if 0 /* broken */ int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode, struct bio *bio) { @@ -151,6 +150,8 @@ int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode, struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; path = btrfs_alloc_path(); + if (bio->bi_size > PAGE_CACHE_SIZE * 8) + path->reada = 2; WARN_ON(bio->bi_vcnt <= 0); @@ -211,7 +212,6 @@ found: btrfs_free_path(path); return 0; } -#endif int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, struct bio *bio) -- cgit v1.2.3