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

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Date:	Fri, 30 Aug 2013 10:26:46 -0400
From:	Benjamin LaHaise <bcrl@...ck.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Waiman Long <Waiman.Long@...com>,
	Linus <torvalds@...ux-foundation.org>
Subject: Re: linux-next: build failure after merge of the aio tree

Hi Stephen,

On Fri, Aug 30, 2013 at 05:55:09PM +1000, Stephen Rothwell wrote:
> Hi Benjamin,
> 
> After merging the aio tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> In file included from include/linux/kernel.h:13:0,
>                  from fs/aio.c:13:
> fs/aio.c: In function 'aio_free_ring':
> fs/aio.c:188:32: error: 'struct dentry' has no member named 'd_count'
>     aio_ring_file->f_path.dentry->d_count,
>                                 ^
> include/linux/printk.h:246:38: note: in definition of macro 'pr_debug'
>   no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)

Ah, this is unnecessary debugging code that got changed.  I've committed 
the following to my aio-next tree to just delete the code since it is not 
required.

		-ben
-- 
"Thought is the essence of where you are now."


commit 79bd1bcf1ab22ea723da7d5854a9e72a350ecbf8
Author: Benjamin LaHaise <bcrl@...ck.org>
Date:   Fri Aug 30 10:22:04 2013 -0400

    aio: remove unnecessary debugging from aio_free_ring()
    
    The commit 36bc08cc0170 ("fs/aio: Add support to aio ring pages migration")
    added some debugging code that is not required and resulted in a build error
    when 98474236f72e ("vfs: make the dentry cache use the lockref infrastructure")
    was added to the tree.  The code is not required, so just delete it.
    
    Signed-off-by: Benjamin LaHaise <bcrl@...ck.org>

diff --git a/fs/aio.c b/fs/aio.c
index c3f005d..d0defcb 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -183,11 +183,6 @@ static void aio_free_ring(struct kioctx *ctx)
 
 	if (aio_ring_file) {
 		truncate_setsize(aio_ring_file->f_inode, 0);
-		pr_debug("pid(%d) i_nlink=%u d_count=%d d_unhashed=%d i_count=%d\n",
-			current->pid, aio_ring_file->f_inode->i_nlink,
-			aio_ring_file->f_path.dentry->d_count,
-			d_unhashed(aio_ring_file->f_path.dentry),
-			atomic_read(&aio_ring_file->f_inode->i_count));
 		fput(aio_ring_file);
 		ctx->aio_ring_file = NULL;
 	}
--
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