From: Christoph Hellwig <hch@infradead.org>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: viro@ZenIV.linux.org.uk, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, hch@infradead.org,
Trond.Myklebust@netapp.com, sfrench@samba.org, sage@newdream.net,
ericvh@gmail.com, mszeredi@suse.cz
Subject: Re: [PATCH 03/25] vfs: split __dentry_open()
Date: Sat, 24 Mar 2012 10:12:51 -0400 [thread overview]
Message-ID: <20120324141251.GA25980@infradead.org> (raw)
In-Reply-To: <1331155362-11132-4-git-send-email-miklos@szeredi.hu>
On Wed, Mar 07, 2012 at 10:22:20PM +0100, Miklos Szeredi wrote:
> From: Miklos Szeredi <mszeredi@suse.cz>
>
> Split __dentry_open() into two functions:
>
> do_dentry_open() - does most of the actual work, doesn't put file on failure
> open_check_o_direct() - after a successful open, checks direct_IO method
>
> This will allow i_op->atomic_open to do just the file initialization and leave
> the direct_IO checking to the VFS.
I think the O_DIRECT checks should move out of the VFS. The direct I/O
method isn't called from the VFS anywhere, but just from the
generic_file_* routines in filemap.c, which suggest doing the O_DIRECT
check in there as well.
next prev parent reply other threads:[~2012-03-24 14:12 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-07 21:22 [PATCH 00/25] vfs: atomic open RFC Miklos Szeredi
2012-03-07 21:22 ` [PATCH 01/25] vfs: split do_lookup() Miklos Szeredi
2012-03-07 21:22 ` [PATCH 02/25] vfs: reorganize do_last() Miklos Szeredi
2012-03-07 21:22 ` [PATCH 03/25] vfs: split __dentry_open() Miklos Szeredi
2012-03-24 14:12 ` Christoph Hellwig [this message]
2012-03-26 13:22 ` Miklos Szeredi
2012-03-26 13:30 ` Christoph Hellwig
2012-03-26 13:47 ` Miklos Szeredi
2012-03-07 21:22 ` [PATCH 04/25] vfs: add i_op->atomic_open() Miklos Szeredi
2012-03-13 14:38 ` Myklebust, Trond
2012-03-13 15:11 ` Miklos Szeredi
2012-03-13 15:31 ` Myklebust, Trond
2012-03-07 21:22 ` [PATCH 05/25] vfs: add filesystem flags for atomic_open Miklos Szeredi
2012-03-13 9:33 ` Christoph Hellwig
2012-03-13 11:17 ` Miklos Szeredi
2012-03-07 21:22 ` [PATCH 06/25] vfs: add i_op->atomic_create() Miklos Szeredi
2012-03-13 9:37 ` Christoph Hellwig
2012-03-13 11:22 ` Miklos Szeredi
2012-03-13 11:55 ` Christoph Hellwig
2012-03-13 13:26 ` Miklos Szeredi
2012-03-13 14:08 ` Miklos Szeredi
2012-03-13 16:34 ` Sage Weil
2012-03-24 14:14 ` Christoph Hellwig
2012-03-07 21:22 ` [PATCH 07/25] nfs: implement i_op->atomic_open() Miklos Szeredi
2012-03-07 21:22 ` [PATCH 08/25] nfs: clean up ->create in nfs_rpc_ops Miklos Szeredi
2012-03-07 21:22 ` [PATCH 09/25] nfs: remove nfs4 specific create function Miklos Szeredi
2012-03-13 12:09 ` Christoph Hellwig
2012-03-07 21:22 ` [PATCH 10/25] nfs: don't use nd->intent.open.flags Miklos Szeredi
2012-03-07 21:22 ` [PATCH 11/25] nfs: don't use intents for checking atomic open Miklos Szeredi
2012-03-24 14:20 ` Christoph Hellwig
2012-03-07 21:22 ` [PATCH 12/25] fuse: implement i_op->atomic_create() Miklos Szeredi
2012-03-07 21:22 ` [PATCH 13/25] cifs: implement i_op->atomic_open() and i_op->atomic_create() Miklos Szeredi
2012-03-13 12:06 ` Christoph Hellwig
2012-03-13 13:39 ` Miklos Szeredi
2012-03-13 16:43 ` Sage Weil
2012-03-24 14:22 ` Christoph Hellwig
2012-03-07 21:22 ` [PATCH 14/25] ceph: remove unused arg from ceph_lookup_open() Miklos Szeredi
2012-03-07 21:22 ` [PATCH 15/25] ceph: implement i_op->atomic_open() and i_op->atomic_create() Miklos Szeredi
2012-03-07 21:22 ` [PATCH 16/25] 9p: implement i_op->atomic_create() Miklos Szeredi
2012-03-07 21:22 ` [PATCH 17/25] vfs: remove open intents from nameidata Miklos Szeredi
2012-03-07 21:22 ` [PATCH 18/25] vfs: only retry last component if opening stale dentry Miklos Szeredi
2012-03-07 21:22 ` [PATCH 19/25] vfs: remove nameidata argument from vfs_create Miklos Szeredi
2012-03-07 21:22 ` [PATCH 20/25] vfs: move O_DIRECT check to common code Miklos Szeredi
2012-03-07 21:22 ` [PATCH 21/25] gfs2: use i_op->atomic_create() Miklos Szeredi
2012-03-24 14:27 ` Christoph Hellwig
2012-03-24 15:38 ` Miklos Szeredi
2012-03-07 21:22 ` [PATCH 22/25] nfs: " Miklos Szeredi
2012-03-07 21:22 ` [PATCH 23/25] vfs: remove nameidata argument from i_op->create() Miklos Szeredi
2012-03-07 21:22 ` [PATCH 24/25] vfs: optionally skip lookup on exclusive create Miklos Szeredi
2012-03-07 21:22 ` [PATCH 25/25] vfs: remove nameidata from lookup Miklos Szeredi
2012-03-07 21:27 ` [PATCH 00/25] vfs: atomic open RFC Steve French
2012-03-13 9:51 ` Christoph Hellwig
2012-03-13 11:00 ` Miklos Szeredi
2012-03-13 12:01 ` Christoph Hellwig
2012-03-13 13:33 ` Miklos Szeredi
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