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Re: [PATCH 1/2] xfs: dynamic speculative EOF preallocation

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH 1/2] xfs: dynamic speculative EOF preallocation
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 7 Dec 2010 05:17:46 -0500
Cc: xfs@xxxxxxxxxxx
In-reply-to: <1290991431-20519-2-git-send-email-david@xxxxxxxxxxxxx>
References: <1290991431-20519-1-git-send-email-david@xxxxxxxxxxxxx> <1290991431-20519-2-git-send-email-david@xxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
I need the patch below to make the new code link on 32-bit systems:

Index: xfs/fs/xfs/xfs_mount.c
===================================================================
--- xfs.orig/fs/xfs/xfs_mount.c 2010-12-07 11:01:50.394021585 +0100
+++ xfs/fs/xfs/xfs_mount.c      2010-12-07 11:02:46.231256257 +0100
@@ -1111,7 +1111,10 @@ xfs_set_low_space_thresholds(
        int i;
 
        for (i = 0; i < XFS_LOWSP_MAX; i++) {
-               mp->m_low_space[i] = mp->m_sb.sb_dblocks / 100 * (i + 1);
+               __uint64_t space = mp->m_sb.sb_dblocks;
+               do_div(space, 100);
+
+               mp->m_low_space[i] = space * (i + 1);
        }
 }
 

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