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btrfs: move repair_io_failure to bio.c

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repair_io_failure ties directly into all the glory low-level details of
mapping a bio with a logic address to the actual physical location.
Move it right below btrfs_submit_bio to keep all the related logic
together.

Also move btrfs_repair_eb_io_failure to its caller in disk-io.c now that
repair_io_failure is available in a header.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Christoph Hellwig
2022-11-15 10:44:06 +01:00
committed by David Sterba
parent 103c19723c
commit bacf60e515
4 changed files with 116 additions and 116 deletions
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24
fs/btrfs/disk-io.c
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@ -255,6 +255,30 @@ int btrfs_verify_level_key(struct extent_buffer *eb, int level,
return ret;
}
static int btrfs_repair_eb_io_failure(const struct extent_buffer *eb,
int mirror_num)
{
struct btrfs_fs_info *fs_info = eb->fs_info;
u64 start = eb->start;
int i, num_pages = num_extent_pages(eb);
int ret = 0;
if (sb_rdonly(fs_info->sb))
return -EROFS;
for (i = 0; i < num_pages; i++) {
struct page *p = eb->pages[i];
ret = btrfs_repair_io_failure(fs_info, 0, start, PAGE_SIZE,
start, p, start - page_offset(p), mirror_num);
if (ret)
break;
start += PAGE_SIZE;
}
return ret;
}
/*
* helper to read a given tree block, doing retries as required when
* the checksums don't match and we have alternate mirrors to try.