linux-kernel - Re: Bug in BLKBSZSET/GET ioctl ?

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Message-ID: <20111229081910.GA26708@amd.home.annexia.org>
Date:	Thu, 29 Dec 2011 08:19:10 +0000
From:	"Richard W.M. Jones" <rjones@...hat.com>
To:	Wanlong Gao <gaowanlong@...fujitsu.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	fengguang.wu@...el.com
Subject: Re: Bug in BLKBSZSET/GET ioctl ?

On Thu, Dec 29, 2011 at 11:56:27AM +0800, Wanlong Gao wrote:
> On 12/29/2011 11:51 AM, Wanlong Gao wrote:
> 
> > Hi all:
> > 
> > This is first reported to *libguestfs*: https://bugzilla.redhat.com/show_bug.cgi?id=624335
> 
> 
> The blockdev-get/setbsz in *libguestfs* is just a wraper of util-linux's *blockdev --get/setbsz*.

Agreed.

I don't think libguestfs is anything to do with it, since those
commands simply translate to running
/sbin/blockdev --{get,set}bsz /dev/sdX:

http://git.annexia.org/?p=libguestfs.git;a=blob;f=daemon/blockdev.c;h=d056abef1739de7b9e9aab118c138bae403e11e5;hb=HEAD#l106

Rich.

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