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Btrfs: Lookup readpage checksums on bio submission again

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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>
This commit is contained in:
Chris Mason
2008-08-20 09:44:52 -04:00
parent 7c2fe32a23
commit 4d1b5fb4d7
2 changed files with 6 additions and 60 deletions
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4
fs/btrfs/file-item.c
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@@ -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)