btrfs: support subpage in endio_readpage_update_page_status()

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To handle subpage status update, add the following:

- Use btrfs_page_*() subpage-aware helpers to update page status
  Now we can handle both cases well.

- No page unlock for subpage metadata
  Since subpage metadata doesn't utilize page locking at all, skip it.
  For subpage data locking, it's handled in later commits.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Qu Wenruo 2021-01-26 16:33:58 +08:00 • committed by David Sterba

parent 4012daf769

commit 4325cb2293

1 changed files with 15 additions and 6 deletions

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fs/btrfs/extent_io.c

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