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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Tim Waugh <tim@cyberelk.net>, Borislav Petkov <bp@alien8.de>,
	Jan Kara <jack@suse.com>,
	linux-block@vger.kernel.org, linux-ide@vger.kernel.org,
	linux-scsi@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: stop using ioctl_by_bdev for file system access to CDROMs v3
Date: Mon,  4 May 2020 15:59:19 +0200	[thread overview]
Message-ID: <20200504135927.2835750-1-hch@lst.de> (raw)

Hi Jens,

can you pick up this series?

Except for the DASD case under discussion the last users of ioctl_by_bdev
are the file system drivers that want to query CDROM information using
ioctls.  This series switches them to use function calls directly into
the CDROM midlayer instead, which implies:

 - adding a cdrom_device_info pointer to the gendisk, so that file systems
   can find it without going to the low-level driver first
 - ensuring that the CDROM midlayer (which isn't a lot of code) is built
   in if the file systems are built in so that they can actually call the
   exported functions

Changes since v2:
 - add a patch to also convert hfs (exactly duplicate of the hfsplus code)
Changes since v1:
 - fix up the no-CDROM error case in isofs_get_last_session to return 0
   instead of -EINVAL.

             reply	other threads:[~2020-05-04 14:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-04 13:59 Christoph Hellwig [this message]
2020-05-04 13:59 ` [PATCH 1/8] block: add a cdrom_device_info pointer to struct gendisk Christoph Hellwig
2020-05-04 13:59 ` [PATCH 2/8] ide-cd: rename cdrom_read_tocentry Christoph Hellwig
2020-05-04 13:59 ` [PATCH 3/8] cdrom: factor out a cdrom_read_tocentry helper Christoph Hellwig
2020-05-04 13:59 ` [PATCH 4/8] cdrom: factor out a cdrom_multisession helper Christoph Hellwig
2020-05-04 13:59 ` [PATCH 5/8] hfs: stop using ioctl_by_bdev Christoph Hellwig
2020-05-05 12:43   ` Christoph Hellwig
2020-05-04 13:59 ` [PATCH 6/8] hfsplus: " Christoph Hellwig
2020-05-04 13:59 ` [PATCH 7/8] isofs: " Christoph Hellwig
2020-05-04 13:59 ` [PATCH 8/8] udf: " Christoph Hellwig

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