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linux-next: build failure after merge of the xfs tree

To: Ben Myers <bpm@xxxxxxx>, David Chinner <david@xxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
Subject: linux-next: build failure after merge of the xfs tree
From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Mon, 20 Apr 2015 12:35:24 +1000
Cc: linux-next@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Omar Sandoval <osandov@xxxxxxxxxxx>, Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
Hi all,

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

fs/xfs/xfs_file.c: In function 'xfs_file_dio_aio_write':
fs/xfs/xfs_file.c:744:8: warning: passing argument 1 of 
'mapping->a_ops->direct_IO' makes pointer from integer without a cast
  ret = mapping->a_ops->direct_IO(WRITE, iocb, &data, pos);
        ^
fs/xfs/xfs_file.c:744:8: note: expected 'struct kiocb *' but argument is of 
type 'long long unsigned int'
fs/xfs/xfs_file.c:744:8: warning: passing argument 2 of 
'mapping->a_ops->direct_IO' from incompatible pointer type
fs/xfs/xfs_file.c:744:8: note: expected 'struct iov_iter *' but argument is of 
type 'struct kiocb *'
fs/xfs/xfs_file.c:744:8: warning: passing argument 3 of 
'mapping->a_ops->direct_IO' makes integer from pointer without a cast
fs/xfs/xfs_file.c:744:8: note: expected 'loff_t' but argument is of type 
'struct iov_iter *'
fs/xfs/xfs_file.c:744:8: error: too many arguments to function 
'mapping->a_ops->direct_IO'

So, my merge resolution was not sufficient :-(

Commit 22c6186ecea0 ("direct_IO: remove rw from a_ops->direct_IO()")
removed the first argument from ->direct_IO(), so I added the following
merge fix patch.

From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Mon, 20 Apr 2015 12:32:00 +1000
Subject: [PATCH] xfs: fix up for direct_IO API change

Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
 fs/xfs/xfs_file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 0d5053fcd8c5..8121e75352ee 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -741,7 +741,7 @@ xfs_file_dio_aio_write(
        trace_xfs_file_direct_write(ip, count, iocb->ki_pos, 0);
 
        data = *from;
-       ret = mapping->a_ops->direct_IO(WRITE, iocb, &data, pos);
+       ret = mapping->a_ops->direct_IO(iocb, &data, pos);
 
        /* see generic_file_direct_write() for why this is necessary */
        if (mapping->nrpages) {
-- 
2.1.4

-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx

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