From: Jim Rees <rees@umich.edu>
To: Peng Tao <bergwolf@gmail.com>
Cc: Trond.Myklebust@netapp.com, Boaz Harrosh <bharrosh@panasas.com>,
linux-nfs@vger.kernel.org, stable@vger.kernel.org,
Peng Tao <tao.peng@emc.com>
Subject: Re: [PATCH] pnfsblock: bail out partial page IO
Date: Mon, 28 May 2012 15:20:21 -0400 [thread overview]
Message-ID: <20120528192021.GA14447@umich.edu> (raw)
In-Reply-To: <1338228443-4883-1-git-send-email-bergwolf@gmail.com>
Peng Tao wrote:
Current block layout driver read/write code assumes page
aligned IO in many places. Add a checker to validate the assumption.
This patch has some problems when compiled for 64 bit.
CC [M] fs/nfs/blocklayout/blocklayout.o
/home/rees/src/pnfs/linux/fs/nfs/blocklayout/blocklayout.c: In function ‘bl_read_pagelist’:
/home/rees/src/pnfs/linux/fs/nfs/blocklayout/blocklayout.c:255:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
/home/rees/src/pnfs/linux/fs/nfs/blocklayout/blocklayout.c: In function ‘bl_write_pagelist’:
/home/rees/src/pnfs/linux/fs/nfs/blocklayout/blocklayout.c:578:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
/home/rees/src/pnfs/linux/fs/nfs/blocklayout/blocklayout.c: In function ‘bl_pg_init_read’:
/home/rees/src/pnfs/linux/fs/nfs/blocklayout/blocklayout.c:1017:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
/home/rees/src/pnfs/linux/fs/nfs/blocklayout/blocklayout.c: In function ‘bl_pg_init_write’:
/home/rees/src/pnfs/linux/fs/nfs/blocklayout/blocklayout.c:1026:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
next prev parent reply other threads:[~2012-05-28 19:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-28 18:07 [PATCH] pnfsblock: bail out partial page IO Peng Tao
2012-05-28 19:20 ` Jim Rees [this message]
2012-05-29 7:07 ` Boaz Harrosh
2012-05-31 3:33 ` tao.peng
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