Btrfs: raid56: iterate raid56 internal bio with bio_for_each_segment_all

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commit 0198e5b707 upstream.

Bio iterated by set_bio_pages_uptodate() is raid56 internal one, so it
will never be a BIO_CLONED bio, and since this is called by end_io
functions, bio->bi_iter.bi_size is zero, we mustn't use
bio_for_each_segment() as that is a no-op if bi_size is zero.

Fixes: 6592e58c6b ("Btrfs: fix write corruption due to bio cloning on raid5/6")
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Liu Bo 2018-01-12 18:07:01 -07:00 • committed by Greg Kroah-Hartman

parent e06f7b686d

commit d16919a3fe

1 changed files with 5 additions and 6 deletions

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fs/btrfs/raid56.c

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