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

From: Stephen Rothwell
Date: Thu Mar 12 2015 - 21:03:08 EST

Hi Al,

After merging the vfs tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

fs/ext4/indirect.c: In function 'ext4_ind_direct_IO':
fs/ext4/indirect.c:653:2: error: implicit declaration of function 'iov_iter_count' [-Werror=implicit-function-declaration]
size_t count = iov_iter_count(iter);

Caused by commit 3737c63e1fb0 ("fs: move struct kiocb to fs.h"). aio.h
used to include uio.h ...

I wonder if there is more fallout from this include file diet.

It would have been nice if the more general changes to aio.h were in a
separate patch.

I added the following patch for today:

From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Fri, 13 Mar 2015 11:56:46 +1100
Subject: [PATCH] ext4: iov_iter_count needs linux/uio.h

Fixes: 3737c63e1fb0 ("fs: move struct kiocb to fs.h")
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
fs/ext4/indirect.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 33308738a06a..a9369e5d2cc1 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -20,6 +20,8 @@
* (sct@xxxxxxxxxx), 1993, 1998

+#include <linux/uio.h>
#include "ext4_jbd2.h"
#include "truncate.h"


Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

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