linux-kernel - linux-next: manual merge of the device-mapper tree with the block tree

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Date:	Tue, 17 Dec 2013 13:16:15 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Alasdair G Kergon <agk@...hat.com>,
	Mike Snitzer <snitzer@...hat.com>, Jens Axboe <axboe@...nel.dk>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Kent Overstreet <kmo@...erainc.com>
Subject: linux-next: manual merge of the device-mapper tree with the block
 tree

Hi all,

Today's linux-next merge of the device-mapper tree got a conflict in
drivers/md/dm-thin.c between commit 4f024f3797c4 ("block: Abstract out
bvec iterator") from the block tree and commit 1d8b40855c42 ("dm thin:
requeue bios to DM core if may_requeue_bios and in read-only mode") from
the device-mapper tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

diff --cc drivers/md/dm-thin.c
index 357eb272dbd9,dde2b1eddbce..000000000000
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@@ -1262,8 -1260,8 +1266,8 @@@ static void process_bio_read_only(struc
  	r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
  	switch (r) {
  	case 0:
 -		if (lookup_result.shared && (rw == WRITE) && bio->bi_size)
 +		if (lookup_result.shared && (rw == WRITE) && bio->bi_iter.bi_size)
- 			bio_io_error(bio);
+ 			handle_unserviceable_bio(tc->pool, bio);
  		else {
  			inc_all_io_entry(tc->pool, bio);
  			remap_and_issue(tc, bio, lookup_result.block);

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