linux-kernel - linux-next: build failure after merge of the block tree

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Message-Id: <20100429135211.3ef89aa3.sfr@canb.auug.org.au>
Date:	Thu, 29 Apr 2010 13:52:11 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Dmitry Monakhov <dmonakhov@...nvz.org>,
	Jiro SEKIBA <jir@...cus.jp>,
	Ryusuke Konishi <konishi.ryusuke@....ntt.co.jp>
Subject: linux-next: build failure after merge of the block tree

Hi Jens,

After merging the block tree, today's linux-next build (powerpc ppc64_defconfig)
failed like this:

fs/nilfs2/the_nilfs.c: In function 'nilfs_discard_segments':
fs/nilfs2/the_nilfs.c:673: error: 'DISCARD_FL_BARRIER' undeclared (first use in this function)

Caused by commit fbd9b09a177a481eda256447c881f014f29034fe ("blkdev:
generalize flags for blkdev_issue_fn functions") interacting with commit
e902ec9906e844f4613fa6190c6fa65f162dc86e ("nilfs2: issue discard request
after cleaning segments") (which netered Linus' tree on about March 4 -
before v2.6.34-rc1).

I applied the following patch for today (but have no way to test it).

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Thu, 29 Apr 2010 13:35:14 +1000
Subject: [PATCH] nilfs: fix for block layer API change

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 fs/nilfs2/the_nilfs.c |    4 +-
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 33871f7..7081588 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -670,7 +670,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump,
 						   start * sects_per_block,
 						   nblocks * sects_per_block,
 						   GFP_NOFS,
-						   DISCARD_FL_BARRIER);
+						   BLKDEV_IFL_BARRIER);
 			if (ret < 0)
 				return ret;
 			nblocks = 0;
@@ -680,7 +680,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump,
 		ret = blkdev_issue_discard(nilfs->ns_bdev,
 					   start * sects_per_block,
 					   nblocks * sects_per_block,
-					   GFP_NOFS, DISCARD_FL_BARRIER);
+					   GFP_NOFS, BLKDEV_IFL_BARRIER);
 	return ret;
 }
 
-- 
1.7.1

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