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authorChris Mason <chris.mason@oracle.com>2008-08-20 17:44:52 +0400
committerChris Mason <chris.mason@oracle.com>2008-09-25 19:04:06 +0400
commit4d1b5fb4d7075f862848dbff8873e22382abd482 (patch)
tree2b68d05910f50c9e385890816e78eda6e8e6e55a /fs/btrfs/file-item.c
parent7c2fe32a238eb12422beca5cbd5194a594baa559 (diff)
downloadlinux-4d1b5fb4d7075f862848dbff8873e22382abd482.tar.xz
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 <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/file-item.c')
-rw-r--r--fs/btrfs/file-item.c4
1 files changed, 2 insertions, 2 deletions
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)