From: Matthew Wilcox <matthew@wil.cx>
To: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Oren Laadan <orenl@cs.columbia.edu>,
Matt Helsley <matthltc@us.ibm.com>,
serue@us.ibm.com,
Containers <containers@lists.linux-foundation.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: [RFC][PATCH 2/4][cr]: Define __f_setown_uid()
Date: Wed, 12 May 2010 08:07:41 -0600 [thread overview]
Message-ID: <20100512140741.GF10452@parisc-linux.org> (raw)
In-Reply-To: <1273617500-13653-3-git-send-email-sukadev@linux.vnet.ibm.com>
On Tue, May 11, 2010 at 03:38:18PM -0700, Sukadev Bhattiprolu wrote:
> __f_setown_uid() is same as __f_setown(), except that instead of assuming the
> uid and euid of current process, it expects them to be passed in as parameters.
>
> This interface will be useful when checkpointing and restarting an application
> that has a 'file owner' specified for any of the application's open files.
> The uid, euid of the process setting up the owner is saved in the checkpoint
> image. When the application is restarted, the save uid and euid values are
> restored.
There are only four callers of __f_setown in the kernel. I'd rather see
__f_setown converted to take the arguments directly.
--
Matthew Wilcox Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
next prev parent reply other threads:[~2010-05-12 14:07 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-11 22:38 [RFC][PATCH 0/4][cr]: Checkpoint/restart file-owner info Sukadev Bhattiprolu
[not found] ` <1273617500-13653-1-git-send-email-sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2010-05-11 22:38 ` [RFC][PATCH 1/4][cr]: Add uid, euid params to f_modown() Sukadev Bhattiprolu
2010-05-11 22:38 ` [RFC][PATCH 2/4][cr]: Define __f_setown_uid() Sukadev Bhattiprolu
2010-05-11 22:38 ` [RFC][PATCH 3/4][cr]: Checkpoint file-owner information Sukadev Bhattiprolu
2010-05-11 22:38 ` [RFC][PATCH 4/4][cr]: Restore file_owner info Sukadev Bhattiprolu
2010-05-11 22:38 ` [RFC][PATCH 1/4][cr]: Add uid, euid params to f_modown() Sukadev Bhattiprolu
2010-05-12 17:05 ` Jamie Lokier
2010-05-12 17:30 ` Sukadev Bhattiprolu
[not found] ` <20100512173048.GC11144-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2010-05-12 20:12 ` Oren Laadan
2010-05-12 20:12 ` Oren Laadan
[not found] ` <20100512170513.GD19314-yetKDKU6eevNLxjTenLetw@public.gmane.org>
2010-05-12 17:30 ` Sukadev Bhattiprolu
[not found] ` <1273617500-13653-2-git-send-email-sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2010-05-12 17:05 ` Jamie Lokier
2010-05-11 22:38 ` [RFC][PATCH 2/4][cr]: Define __f_setown_uid() Sukadev Bhattiprolu
[not found] ` <1273617500-13653-3-git-send-email-sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2010-05-12 8:06 ` Serge E. Hallyn
[not found] ` <20100512080629.GB2636-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2010-05-12 8:43 ` Serge E. Hallyn
[not found] ` <20100512084317.GA8842-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2010-05-12 16:59 ` Sukadev Bhattiprolu
[not found] ` <20100512165922.GA11144-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2010-05-12 17:54 ` Serge E. Hallyn
2010-05-12 14:07 ` Matthew Wilcox
2010-05-12 14:07 ` Matthew Wilcox [this message]
2010-05-12 17:05 ` Sukadev Bhattiprolu
[not found] ` <20100512140741.GF10452-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
2010-05-12 17:05 ` Sukadev Bhattiprolu
2010-05-11 22:38 ` [RFC][PATCH 3/4][cr]: Checkpoint file-owner information Sukadev Bhattiprolu
2010-05-11 22:38 ` [RFC][PATCH 4/4][cr]: Restore file_owner info Sukadev Bhattiprolu
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