From: Jan Kara <jack@suse.cz>
To: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>, Christian Brauner <brauner@kernel.org>,
Jens Axboe <axboe@kernel.dk>,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
"Darrick J. Wong" <djwong@kernel.org>,
linux-xfs@vger.kernel.org, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 28/29] xfs: Convert to bdev_open_by_path()
Date: Thu, 24 Aug 2023 12:28:37 +0200 [thread overview]
Message-ID: <20230824102837.credhh3fsco6vf7p@quack3> (raw)
In-Reply-To: <ZOaEHrkx1xS9bgk9@dread.disaster.area>
On Thu 24-08-23 08:11:42, Dave Chinner wrote:
> On Wed, Aug 23, 2023 at 12:48:39PM +0200, Jan Kara wrote:
> > Convert xfs to use bdev_open_by_path() and pass the handle around.
> ....
>
> > @@ -426,15 +427,15 @@ xfs_shutdown_devices(
> > * race, everyone loses.
> > */
> > if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) {
> > - blkdev_issue_flush(mp->m_logdev_targp->bt_bdev);
> > - invalidate_bdev(mp->m_logdev_targp->bt_bdev);
> > + blkdev_issue_flush(mp->m_logdev_targp->bt_bdev_handle->bdev);
> > + invalidate_bdev(mp->m_logdev_targp->bt_bdev_handle->bdev);
> > }
> > if (mp->m_rtdev_targp) {
> > - blkdev_issue_flush(mp->m_rtdev_targp->bt_bdev);
> > - invalidate_bdev(mp->m_rtdev_targp->bt_bdev);
> > + blkdev_issue_flush(mp->m_rtdev_targp->bt_bdev_handle->bdev);
> > + invalidate_bdev(mp->m_rtdev_targp->bt_bdev_handle->bdev);
> > }
> > - blkdev_issue_flush(mp->m_ddev_targp->bt_bdev);
> > - invalidate_bdev(mp->m_ddev_targp->bt_bdev);
> > + blkdev_issue_flush(mp->m_ddev_targp->bt_bdev_handle->bdev);
> > + invalidate_bdev(mp->m_ddev_targp->bt_bdev_handle->bdev);
> > }
>
> Why do these need to be converted to run through bt_bdev_handle? If
> the buftarg is present and we've assigned targp->bt_bdev_handle
> during the call to xfs_alloc_buftarg(), then we've assigned
> targp->bt_bdev from the handle at the same time, yes?
Good point, these conversions are pointless now so I've removed them. They
are leftover from a previous version based on a kernel where xfs was
dropping bdev references in a different place. Thanks for noticing.
Honza
--
Jan Kara <jack@suse.com>
SUSE Labs, CR
next prev parent reply other threads:[~2023-08-24 10:29 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-23 10:48 [PATCH v3 0/29] block: Make blkdev_get_by_*() return handle Jan Kara
2023-08-23 10:48 ` [PATCH 28/29] xfs: Convert to bdev_open_by_path() Jan Kara
2023-08-23 22:11 ` Dave Chinner
2023-08-24 10:28 ` Jan Kara [this message]
2023-08-24 20:29 ` Jan Kara
2023-08-24 23:06 ` Dave Chinner
2023-08-25 12:38 ` Christian Brauner
2023-08-25 13:32 ` [PATCH v3 0/29] block: Make blkdev_get_by_*() return handle Christian Brauner
2023-08-28 17:07 ` Jan Kara
2023-08-29 11:02 ` Christian Brauner
2023-09-27 9:34 ` [PATCH v4 " Jan Kara
2023-09-27 9:34 ` [PATCH 28/29] xfs: Convert to bdev_open_by_path() Jan Kara
2023-09-27 15:40 ` Darrick J. Wong
2023-09-27 14:19 ` [PATCH v4 0/29] block: Make blkdev_get_by_*() return handle Jens Axboe
2023-09-27 16:21 ` Christian Brauner
2023-10-02 7:57 ` Jan Kara
-- strict thread matches above, loose matches on Subject: below --
2023-08-11 11:04 [PATCH v2 " Jan Kara
2023-08-11 11:04 ` [PATCH 28/29] xfs: Convert to bdev_open_by_path() Jan Kara
2023-08-14 10:27 ` Daniel Gomez
2023-08-14 13:43 ` Jan Kara
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