btrfs: make lock_extent_buffer_for_io() to be subpage compatible

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For subpage metadata, we don't use page locking at all.  So just skip
the page locking part for subpage.  The rest of the function can be
reused.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Qu Wenruo 2021-04-06 08:36:02 +08:00 • committed by David Sterba

parent 35b6ddfa96

commit f3156df944

1 changed files with 7 additions and 1 deletions

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fs/btrfs/extent_io.c

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