From: Andreas Dilger <adilger@clusterfs.com>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: akpm@linux-foundation.org, hch@infradead.org,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [patch 4/5] VFS: allow filesystems to implement atomic open+truncate
Date: Fri, 21 Sep 2007 12:47:37 -0600 [thread overview]
Message-ID: <20070921184737.GR32520@schatzie.adilger.int> (raw)
In-Reply-To: <20070921123334.643828369@szeredi.hu>
On Sep 21, 2007 14:23 +0200, Miklos Szeredi wrote:
> Add a new attribute flag ATTR_OPEN, with the meaning: "truncation was
> initiated by open() due to the O_TRUNC flag".
>
> This way filesystems wanting to implement truncation within their
> ->open() method can ignore such truncate requests.
This is actually something we've needed to do in Lustre for a while also.
We called it ATTR_FROM_OPEN, but I don't really mind ATTR_OPEN either -
the less patching we need to do the better.
Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.
next prev parent reply other threads:[~2007-09-21 18:47 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-21 12:23 [patch 0/5] VFS changes Miklos Szeredi
2007-09-21 12:23 ` [patch 1/5] VFS: pass open file to ->setattr() Miklos Szeredi
2007-09-21 12:23 ` [patch 2/5] VFS: pass open file to ->getattr() Miklos Szeredi
2007-09-21 18:37 ` Andreas Dilger
2007-09-21 21:07 ` Miklos Szeredi
2007-09-21 12:23 ` [patch 3/5] VFS: pass open file to ->xattr() Miklos Szeredi
2007-09-21 12:43 ` Christoph Hellwig
2007-09-21 13:00 ` Miklos Szeredi
2007-09-21 13:06 ` Christoph Hellwig
2007-09-21 13:16 ` Miklos Szeredi
2007-09-21 14:32 ` Trond Myklebust
2007-09-21 14:34 ` Christoph Hellwig
2007-09-21 14:59 ` Miklos Szeredi
2007-09-21 18:44 ` Andreas Dilger
2007-09-21 21:15 ` Miklos Szeredi
2007-09-21 14:43 ` Miklos Szeredi
2007-09-21 18:39 ` Andreas Dilger
2007-09-21 12:23 ` [patch 4/5] VFS: allow filesystems to implement atomic open+truncate Miklos Szeredi
2007-09-21 12:44 ` Christoph Hellwig
2007-09-21 13:01 ` Miklos Szeredi
2007-09-21 18:47 ` Andreas Dilger [this message]
2007-09-21 12:23 ` [patch 5/5] VFS: allow filesystem to override mknod capability checks Miklos Szeredi
2007-09-21 12:45 ` Christoph Hellwig
2007-09-21 13:10 ` Miklos Szeredi
2007-09-21 13:14 ` Christoph Hellwig
2007-09-21 13:18 ` Miklos Szeredi
2007-09-21 14:33 ` Christoph Hellwig
2007-09-21 14:48 ` Miklos Szeredi
2007-09-21 14:53 ` Christoph Hellwig
2007-09-21 15:11 ` Miklos Szeredi
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