btrfs: only call __extent_writepage_io from extent_write_locked_range
__extent_writepage does a lot of things that make no sense for extent_write_locked_range, given that extent_write_locked_range itself is called from __extent_writepage either directly or through a workqueue, and all this work has already been done in the first invocation and the pages haven't been unlocked since. Call __extent_writepage_io directly instead and open code the logic tracked in btrfs_bio_ctrl::extent_locked. Reviewed-by:Josef Bacik <josef@toxicpanda.com> Signed-off-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com>
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9ecdbee8
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