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

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Date:   Thu, 11 Jul 2019 15:04:09 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Jens Axboe <axboe@...nel.dk>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        David Chinner <david@...morbit.com>, linux-xfs@...r.kernel.org
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Tejun Heo <tj@...nel.org>, Christoph Hellwig <hch@....de>
Subject: linux-next: build failure after merge of the block tree

Hi all,

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

fs/xfs/xfs_aops.c: In function 'xfs_add_to_ioend':
fs/xfs/xfs_aops.c:799:2: error: implicit declaration of function 'wbc_account_io'; did you mean 'blk_account_rq'? [-Werror=implicit-function-declaration]
  wbc_account_io(wbc, page, len);
  ^~~~~~~~~~~~~~
  blk_account_rq

Caused by commit

  34e51a5e1a6e ("blkcg, writeback: Rename wbc_account_io() to wbc_account_cgroup_owner()")

interacting with commit

  adfb5fb46af0 ("xfs: implement cgroup aware writeback")

from the xfs tree.

I have applied the following merge fix patch:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Thu, 11 Jul 2019 15:01:54 +1000
Subject: [PATCH] xfs: fix up for wbc_account_io rename

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 fs/xfs/xfs_aops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 761248ee2778..f16d5f196c6b 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -796,7 +796,7 @@ xfs_add_to_ioend(
 	}
 
 	wpc->ioend->io_size += len;
-	wbc_account_io(wbc, page, len);
+	wbc_account_cgroup_owner(wbc, page, len);
 }
 
 STATIC void
-- 
2.20.1

-- 
Cheers,
Stephen Rothwell

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