btrfs: extent_io: Handle errors better in extent_write_full_page()

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Since now flush_write_bio() could return error, kill the BUG_ON() first.
Then don't call flush_write_bio() unconditionally, instead we check the
return value from __extent_writepage() first.

If __extent_writepage() fails, we do cleanup, and return error without
submitting the possible corrupted or half-baked bio.

If __extent_writepage() successes, then we call flush_write_bio() and
return the result.

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 2019-03-20 14:27:42 +08:00 • committed by David Sterba

parent f4340622e0

commit 3065976b04

1 changed files with 21 additions and 3 deletions

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fs/btrfs/extent_io.c

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