From: "Darrick J. Wong" <djwong@kernel.org>
To: John Garry <john.g.garry@oracle.com>
Cc: hch@lst.de, viro@zeniv.linux.org.uk, brauner@kernel.org,
dchinner@redhat.com, jack@suse.cz, chandan.babu@oracle.com,
martin.petersen@oracle.com, linux-kernel@vger.kernel.org,
linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
tytso@mit.edu, jbongio@google.com, ojaswin@linux.ibm.com
Subject: Re: [PATCH 6/6] fs: xfs: Set FMODE_CAN_ATOMIC_WRITE for FS_XFLAG_ATOMICWRITES set
Date: Tue, 13 Feb 2024 09:59:54 -0800 [thread overview]
Message-ID: <20240213175954.GV616564@frogsfrogsfrogs> (raw)
In-Reply-To: <7e3b9556-f083-4c14-a48f-46242d1c744b@oracle.com>
On Mon, Feb 05, 2024 at 10:26:43AM +0000, John Garry wrote:
> On 02/02/2024 18:06, Darrick J. Wong wrote:
> > On Wed, Jan 24, 2024 at 02:26:45PM +0000, John Garry wrote:
> > > For when an inode is enabled for atomic writes, set FMODE_CAN_ATOMIC_WRITE
> > > flag.
> > >
> > > Signed-off-by: John Garry <john.g.garry@oracle.com>
> > > ---
> > > fs/xfs/xfs_file.c | 2 ++
> > > 1 file changed, 2 insertions(+)
> > >
> > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
> > > index e33e5e13b95f..1375d0089806 100644
> > > --- a/fs/xfs/xfs_file.c
> > > +++ b/fs/xfs/xfs_file.c
> > > @@ -1232,6 +1232,8 @@ xfs_file_open(
> > > return -EIO;
> > > file->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC | FMODE_BUF_WASYNC |
> > > FMODE_DIO_PARALLEL_WRITE | FMODE_CAN_ODIRECT;
> > > + if (xfs_inode_atomicwrites(XFS_I(inode)))
>
> Note to self: This should also check if O_DIRECT is set
>
> >
> > Shouldn't we check that the device supports AWU at all before turning on
> > the FMODE flag?
>
> Can we easily get this sort of bdev info here?
>
> Currently if we do try to issue an atomic write and AWU for the bdev is
> zero, then XFS iomap code will reject it.
Hmm. Well, if we move towards pushing all the hardware checks out of
xfs/iomap and into whatever goes on underneath submit_bio then I guess
we don't need to check device support here at all.
--D
> Thanks,
> John
>
> >
> > --D
> >
> > > + file->f_mode |= FMODE_CAN_ATOMIC_WRITE;
> > > return generic_file_open(inode, file);
> > > }
> > > --
> > > 2.31.1
> > >
> > >
>
>
next prev parent reply other threads:[~2024-02-13 17:59 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-24 14:26 [PATCH 0/6] block atomic writes for XFS John Garry
2024-01-24 14:26 ` [PATCH 1/6] fs: iomap: Atomic write support John Garry
2024-02-02 17:25 ` Darrick J. Wong
2024-02-05 11:29 ` John Garry
2024-02-13 6:55 ` Christoph Hellwig
2024-02-13 8:20 ` John Garry
2024-02-15 11:08 ` John Garry
2024-02-13 18:08 ` Darrick J. Wong
2024-02-05 15:20 ` Pankaj Raghav (Samsung)
2024-02-05 15:41 ` John Garry
2024-01-24 14:26 ` [PATCH 2/6] fs: Add FS_XFLAG_ATOMICWRITES flag John Garry
2024-02-02 17:57 ` Darrick J. Wong
2024-02-05 12:58 ` John Garry
2024-02-13 6:56 ` Christoph Hellwig
2024-02-13 17:08 ` Darrick J. Wong
2024-01-24 14:26 ` [PATCH 3/6] fs: xfs: Support FS_XFLAG_ATOMICWRITES for rtvol John Garry
2024-02-02 17:52 ` Darrick J. Wong
2024-02-03 7:40 ` Ojaswin Mujoo
2024-02-05 12:51 ` John Garry
2024-02-13 17:22 ` Darrick J. Wong
2024-02-14 12:19 ` John Garry
2024-01-24 14:26 ` [PATCH 4/6] fs: xfs: Support atomic write for statx John Garry
2024-02-02 18:05 ` Darrick J. Wong
2024-02-05 13:10 ` John Garry
2024-02-13 17:37 ` Darrick J. Wong
2024-02-14 12:26 ` John Garry
2024-02-09 7:00 ` Ojaswin Mujoo
2024-02-09 17:30 ` John Garry
2024-02-12 11:48 ` Ojaswin Mujoo
2024-02-12 12:05 ` Ojaswin Mujoo
2024-01-24 14:26 ` [PATCH RFC 5/6] fs: xfs: iomap atomic write support John Garry
2024-02-02 18:47 ` Darrick J. Wong
2024-02-05 13:36 ` John Garry
2024-02-06 1:15 ` Dave Chinner
2024-02-06 9:53 ` John Garry
2024-02-07 0:06 ` Dave Chinner
2024-02-07 14:13 ` John Garry
2024-02-09 1:40 ` Dave Chinner
2024-02-09 12:47 ` John Garry
2024-02-13 23:41 ` Dave Chinner
2024-02-14 11:06 ` John Garry
2024-02-14 23:03 ` Dave Chinner
2024-02-15 9:53 ` John Garry
2024-02-13 17:50 ` Darrick J. Wong
2024-02-14 12:13 ` John Garry
2024-01-24 14:26 ` [PATCH 6/6] fs: xfs: Set FMODE_CAN_ATOMIC_WRITE for FS_XFLAG_ATOMICWRITES set John Garry
2024-02-02 18:06 ` Darrick J. Wong
2024-02-05 10:26 ` John Garry
2024-02-13 17:59 ` Darrick J. Wong [this message]
2024-02-14 12:36 ` John Garry
2024-02-21 17:00 ` Darrick J. Wong
2024-02-21 17:38 ` John Garry
2024-02-24 4:18 ` Darrick J. Wong
2024-02-09 7:14 ` [PATCH 0/6] block atomic writes for XFS Ojaswin Mujoo
2024-02-09 9:22 ` John Garry
2024-02-12 12:06 ` Ojaswin Mujoo
2024-02-13 7:22 ` Christoph Hellwig
2024-02-13 17:55 ` Darrick J. Wong
2024-02-14 7:45 ` Christoph Hellwig
2024-02-21 16:56 ` Darrick J. Wong
2024-02-23 6:57 ` Christoph Hellwig
2024-02-13 23:50 ` Dave Chinner
2024-02-14 7:38 ` Christoph Hellwig
2024-02-13 7:45 ` Ritesh Harjani
2024-02-13 8:41 ` John Garry
2024-02-13 9:10 ` Ritesh Harjani
2024-02-13 22:49 ` Dave Chinner
2024-02-14 10:10 ` John Garry
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240213175954.GV616564@frogsfrogsfrogs \
--to=djwong@kernel.org \
--cc=brauner@kernel.org \
--cc=chandan.babu@oracle.com \
--cc=dchinner@redhat.com \
--cc=hch@lst.de \
--cc=jack@suse.cz \
--cc=jbongio@google.com \
--cc=john.g.garry@oracle.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-xfs@vger.kernel.org \
--cc=martin.petersen@oracle.com \
--cc=ojaswin@linux.ibm.com \
--cc=tytso@mit.edu \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).