From: Jan Kara <jack@suse.cz>
To: Christoph Hellwig <hch@infradead.org>
Cc: Jan Kara <jack@suse.cz>,
linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
Jens Axboe <axboe@kernel.dk>
Subject: Re: [PATCH 02/32] block: Use file->f_flags for determining exclusive opens in file_to_blk_mode()
Date: Thu, 6 Jul 2023 18:35:56 +0200 [thread overview]
Message-ID: <20230706163556.7ygts5dhfhgj53zl@quack3> (raw)
In-Reply-To: <ZKbfO5eFJ9hVueb/@infradead.org>
On Thu 06-07-23 08:35:23, Christoph Hellwig wrote:
> On Tue, Jul 04, 2023 at 02:21:29PM +0200, Jan Kara wrote:
> > Use file->f_flags instead of file->private_data for determining whether
> > we should set BLK_OPEN_EXCL flag. This allows us to remove somewhat
> > awkward setting of file->private_data before calling file_to_blk_mode()
> > and it also makes following conversion to blkdev_get_handle_by_dev()
> > simpler.
>
> While this looks a lot nicer, I don't think it actually works given that
> do_dentry_open clears out O_EXCL, and thus it won't be set when
> calling into blkdev_ioctl.
Aha, good point! So I need to workaround this a bit differently. I think
the best would be to have file_to_blk_mode() for blkdev_open() only and
make the other places (which already have bdev_handle available from
struct file) use bdev_handle->mode. But I have to come up with a sane
transition to that state :).
Honza
--
Jan Kara <jack@suse.com>
SUSE Labs, CR
next prev parent reply other threads:[~2023-07-06 16:36 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-04 12:21 [PATCH RFC 0/32] block: Make blkdev_get_by_*() return handle Jan Kara
2023-07-04 12:21 ` [PATCH 01/32] block: Provide blkdev_get_handle_* functions Jan Kara
2023-07-04 12:43 ` Matthew Wilcox
2023-07-04 13:03 ` Jan Kara
2023-07-04 14:06 ` Bart Van Assche
2023-07-04 16:14 ` Matthew Wilcox
2023-07-05 15:19 ` Bart Van Assche
2023-07-05 16:12 ` Jan Kara
2023-07-04 16:28 ` Keith Busch
2023-07-05 10:21 ` Jan Kara
2023-07-06 15:38 ` Christoph Hellwig
2023-07-06 16:14 ` Jan Kara
2023-07-07 11:28 ` Christoph Hellwig
2023-07-07 12:24 ` Jan Kara
2023-07-12 16:06 ` Haris Iqbal
2023-07-31 10:50 ` Jan Kara
2023-07-31 11:13 ` Christoph Hellwig
2023-07-04 12:21 ` [PATCH 02/32] block: Use file->f_flags for determining exclusive opens in file_to_blk_mode() Jan Kara
2023-07-06 15:35 ` Christoph Hellwig
2023-07-06 16:35 ` Jan Kara [this message]
2023-07-07 11:29 ` Christoph Hellwig
2023-07-04 12:21 ` [PATCH 03/32] block: Use blkdev_get_handle_by_dev() in blkdev_open() Jan Kara
2023-07-05 5:05 ` Kanchan Joshi
2023-07-05 10:17 ` Jan Kara
2023-07-04 12:21 ` [PATCH 04/32] block: Use blkdev_get_handle_by_dev() in disk_scan_partitions() and blkdev_bszset() Jan Kara
2023-07-04 12:21 ` [PATCH 05/32] drdb: Convert to use blkdev_get_handle_by_path() Jan Kara
2023-07-04 12:21 ` [PATCH 06/32] pktcdvd: Convert to blkdev_get_handle_by_dev() Jan Kara
2023-07-04 12:21 ` [PATCH 07/32] rnbd-srv: Convert to use blkdev_get_handle_by_path() Jan Kara
2023-07-12 15:54 ` Haris Iqbal
2023-07-04 12:21 ` [PATCH 08/32] xen/blkback: Convert to blkdev_get_handle_by_dev() Jan Kara
2023-07-04 12:21 ` [PATCH 09/32] zram: Convert to use blkdev_get_handle_by_dev() Jan Kara
2023-07-05 0:52 ` Sergey Senozhatsky
2023-07-04 12:21 ` [PATCH 10/32] bcache: Convert to blkdev_get_handle_by_path() Jan Kara
2023-07-04 13:06 ` Coly Li
2023-07-04 12:21 ` [PATCH 11/32] dm: Convert to blkdev_get_handle_by_dev() Jan Kara
2023-07-04 12:21 ` [PATCH 12/32] md: " Jan Kara
2023-07-04 12:21 ` [PATCH 13/32] mtd: block2mtd: Convert to blkdev_get_handle_by_dev/path() Jan Kara
2023-07-04 12:21 ` [PATCH 14/32] nvmet: Convert to blkdev_get_handle_by_path() Jan Kara
2023-07-04 12:21 ` [PATCH 15/32] s390/dasd: " Jan Kara
2023-07-04 12:21 ` [PATCH 16/32] scsi: target: " Jan Kara
2023-07-04 12:21 ` [PATCH 17/32] PM: hibernate: Convert to blkdev_get_handle_by_dev() Jan Kara
2023-07-04 12:21 ` [PATCH 18/32] PM: hibernate: Drop unused snapshot_test argument Jan Kara
2023-07-04 12:21 ` [PATCH 19/32] mm/swap: Convert to use blkdev_get_handle_by_dev() Jan Kara
2023-07-04 12:21 ` [PATCH 20/32] fs: Convert to blkdev_get_handle_by_path() Jan Kara
2023-07-04 12:21 ` [PATCH 21/32] btrfs: " Jan Kara
2023-07-04 12:21 ` [PATCH 22/32] erofs: Convert to use blkdev_get_handle_by_path() Jan Kara
2023-07-06 15:16 ` Gao Xiang
2023-07-04 12:21 ` [PATCH 23/32] ext4: Convert to blkdev_get_handle_by_dev() Jan Kara
2023-07-04 12:21 ` [PATCH 24/32] f2fs: Convert to blkdev_get_handle_by_dev/path() Jan Kara
2023-07-04 12:21 ` [PATCH 25/32] jfs: Convert to blkdev_get_handle_by_dev() Jan Kara
2023-07-05 15:16 ` Dave Kleikamp
2023-07-04 12:21 ` [PATCH 26/32] nfs/blocklayout: Convert to use blkdev_get_handle_by_dev/path() Jan Kara
2023-07-04 12:21 ` [PATCH 27/32] nilfs2: Convert to use blkdev_get_handle_by_path() Jan Kara
2023-07-21 5:22 ` Ryusuke Konishi
2023-07-04 12:21 ` [PATCH 28/32] ocfs2: Convert to use blkdev_get_handle_by_dev() Jan Kara
2023-07-05 10:55 ` Joseph Qi
2023-07-04 12:21 ` [PATCH 29/32] reiserfs: Convert to blkdev_get_handle_by_dev/path() Jan Kara
2023-07-04 12:21 ` [PATCH 30/32] xfs: Convert to blkdev_get_handle_by_path() Jan Kara
2023-07-04 12:21 ` [PATCH 31/32] block: Remove blkdev_get_by_*() functions Jan Kara
2023-07-04 12:21 ` [PATCH 32/32] block: Rename blkdev_get_handle_by_*() and blkdev_handle_put() Jan Kara
2023-07-06 14:54 ` [PATCH RFC 0/32] block: Make blkdev_get_by_*() return handle Christoph Hellwig
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