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Btrfs: Retry metadata reads in the face of checksum failures

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-04-09 16:28:12 -04:00
parent 22c599485b
commit f188591e98
7 changed files with 138 additions and 52 deletions
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7
fs/btrfs/inode.c
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@@ -314,7 +314,7 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
map_tree = &root->fs_info->mapping_tree;
map_length = length;
ret = btrfs_map_block(map_tree, READ, logical,
&map_length, NULL);
&map_length, NULL, 0);
if (map_length < length + size) {
return 1;
@@ -322,7 +322,8 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
return 0;
}
int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio)
int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
int mirror_num)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
@@ -347,7 +348,7 @@ int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio)
BUG_ON(ret);
mutex_unlock(&root->fs_info->fs_mutex);
mapit:
return btrfs_map_bio(root, rw, bio);
return btrfs_map_bio(root, rw, bio, mirror_num);
}
int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)