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From: Mark Tinguely <tinguely@sgi.com>
To: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: "linux-next@vger.kernel.org" <linux-next@vger.kernel.org>,
	xfs@oss.sgi.com
Subject: Re: new 64 bit math link fail in xfs in linux-next today
Date: Wed, 16 Apr 2014 15:59:51 -0500	[thread overview]
Message-ID: <534EEF47.4000706@sgi.com> (raw)
In-Reply-To: <534EAB41.60901@windriver.com>

On 04/16/14 11:09, Paul Gortmaker wrote:
> Hi Dave,
>
> Not sure if this has been reported yet, but this new failure showed
> up in the xtensa link of today's linux-next builds.
>
> http://kisskb.ellerman.id.au/kisskb/buildresult/10938384/
>
> Paul.
>

Try this works on i386. sorry if my mailer wraps the line:

The roundup in commit 68c1fb5d should be a roundup_64()
because it is desired to round a 64 bit type by an integer
and that will result in a 64 bit value. On 32 bit machines
using roundup() in this case will result in the error:

  ERROR: "__divdi3" [fs/xfs/xfs.ko] undefined!

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
---
  fs/xfs/xfs_aops.c |    2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

Index: b/fs/xfs/xfs_aops.c
===================================================================
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -1365,7 +1365,7 @@ __xfs_get_blocks(
  		if (offset < i_size_read(inode) &&
  		    offset + mapping_size >= i_size_read(inode)) {
  			/* limit mapping to block that spans EOF */
-			mapping_size = roundup(i_size_read(inode) - offset,
+			mapping_size = roundup_64(i_size_read(inode) - offset,
  					       1 << inode->i_blkbits);
  		}
  		if (mapping_size > LONG_MAX)

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  reply	other threads:[~2014-04-16 20:59 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-16 16:09 new 64 bit math link fail in xfs in linux-next today Paul Gortmaker
2014-04-16 20:59 ` Mark Tinguely [this message]
2014-04-16 21:45   ` Paul Gortmaker
2014-04-16 21:51 ` [PATCH] xfs: fix 32bit __divdi3 undefined Mark Tinguely
2014-04-16 21:57   ` Eric Sandeen
2014-04-16 22:10   ` Dave Chinner
2014-04-16 22:30     ` Mark Tinguely
2014-04-16 21:57 ` new 64 bit math link fail in xfs in linux-next today Dave Chinner

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