From: Marc Dionne <marc.c.dionne@gmail.com>
To: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Eric Paris <eparis@redhat.com>,
Eric Paris <eparis@parisplace.org>,
Christoph Hellwig <hch@lst.de>, Andrew Morton <akpm@osdl.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
serue@us.ibm.com, hpa@zytor.com, sukadev@us.ibm.com,
linux-kernel@vger.kernel.org, jbacik@redhat.com
Subject: Re: [v3][PATCH 5/5] Merge code for single andmultiple-instancemounts
Date: Fri, 08 May 2009 23:17:43 -0400 [thread overview]
Message-ID: <4A04F5D7.2050909@gmail.com> (raw)
In-Reply-To: <20090507232110.GB27609@linux.vnet.ibm.com>
On 05/07/2009 07:21 PM, Sukadev Bhattiprolu wrote:
> Er. I meant add following lines after the memset().
>
> | opts->mode = DEVPTS_DEFAULT_MODE;
> | opts->ptmxmode = DEVPTS_DEFAULT_PTMX_MODE;
Adding those two lines (with . instead of ->) does fix the issue for me,
thanks.
| > Of course we would still need to understand if/
| > why this patch changes the settings.
That particular patch changed things because the original memcpy in
new_pts_mount() did this:
memcpy(&fsi->mount_opts, opts, sizeof(opts));
where opts was a pointer, not a structure. So only the first few bytes
of the blank opts actually got copied over. The patch moved this memcpy
to devpts_get_sb() and in the process fixed the sizeof error.
Marc
next prev parent reply other threads:[~2009-05-09 3:20 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-07 18:08 [PATCH 0/5][v2] Simplify devpts code Sukadev Bhattiprolu
2009-03-07 18:10 ` Sukadev Bhattiprolu
2009-03-07 18:17 ` Sukadev Bhattiprolu
2009-03-07 18:11 ` [v3][PATCH 2/5] Parse mount options just once and copy them to super block Sukadev Bhattiprolu
2009-03-07 18:11 ` [v3][PATCH 3/5] Move common mknod_ptmx() calls into caller Sukadev Bhattiprolu
2009-03-07 18:12 ` [v3][PATCH 4/5] Remove get_init_pts_sb() Sukadev Bhattiprolu
2009-03-07 18:12 ` [v3][PATCH 5/5] Merge code for single and multiple-instance mounts Sukadev Bhattiprolu
2009-05-07 20:35 ` Eric Paris
2009-05-07 21:24 ` Sukadev Bhattiprolu
2009-05-07 22:33 ` Eric Paris
2009-05-07 23:18 ` [v3][PATCH 5/5] Merge code for single and multiple-instancemounts Sukadev Bhattiprolu
2009-05-07 23:21 ` [v3][PATCH 5/5] Merge code for single andmultiple-instancemounts Sukadev Bhattiprolu
2009-05-08 13:53 ` Peter Staubach
2009-05-09 3:17 ` Marc Dionne [this message]
2009-05-11 22:15 ` Sukadev Bhattiprolu
2009-05-11 22:19 ` H. Peter Anvin
2009-05-11 22:37 ` [v3][PATCH 5/5] Merge code for singleandmultiple-instancemounts Serge E. Hallyn
2009-05-11 22:46 ` H. Peter Anvin
2009-05-11 22:40 ` [v3][PATCH 5/5] Merge code for single andmultiple-instancemounts Andrew Morton
2009-05-11 23:09 ` Eric Paris
2009-05-11 23:00 ` Marc Dionne
2009-03-07 18:14 ` [v3][PATCH 2/5] Parse mount options just once and copy them to super block Sukadev Bhattiprolu
2009-03-07 18:16 ` [v3][PATCH 1/5] Unroll essentials of do_remount_sb() into devpts Sukadev Bhattiprolu
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