linux-kernel - Re: linux-next: manual merge of the akpm tree with Linus' tree

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Date:	Mon, 20 May 2013 08:19:52 -0400
From:	Chris Mason <clmason@...ionio.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kent Overstreet <koverstreet@...gle.com>
Subject: Re: linux-next: manual merge of the akpm tree with Linus' tree

Quoting Stephen Rothwell (2013-05-20 00:04:49)
> Hi Andrew,
> 
> Today's linux-next merge of the akpm tree got conflicts in
> fs/btrfs/inode.c and fs/btrfs/volumes.c between commit 9be3395bcd4a
> ("Btrfs: use a btrfs bioset instead of abusing bio internals") from
> Linus' tree and commit "block: prep work for batch completion" from the
> akpm tree.
> 
> I fixed it up (I think - see below) and can carry the fix as necessary
> (no action is required).
> 
> I also noticed that a single conversion of bio_endio to bio_endio_batch
> is done in the akpm patch but bio_endio_batch is not introduced until a
> later patch ... :-(

Thanks, this looks right and I've linux-next through an aio/dio test on
btrfs.

Kent, reviewing the merge I see a missing bio_endio_batch conversion.  I
think this was missing from the original:

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index faf20f5..a47bc10 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7084,7 +7084,7 @@ static void btrfs_end_dio_bio(struct bio *bio, int err,
 		bio_io_error(dip->orig_bio);
 	} else {
 		set_bit(BIO_UPTODATE, &dip->dio_bio->bi_flags);
-		bio_endio(dip->orig_bio, 0);
+		bio_endio_batch(dip->orig_bio, 0, batch);
 	}
 out:
 	bio_put(bio);
--
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