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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Josef Bacik <josef@toxicpanda.com>,
Minchan Kim <minchan@kernel.org>,
Stefan Haberland <sth@linux.ibm.com>,
Jan Hoeppner <hoeppner@linux.ibm.com>,
Joseph Qi <joseph.qi@linux.alibaba.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Pavel Machek <pavel@ucw.cz>, Len Brown <len.brown@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, nbd@other.debian.org,
linux-ide@vger.kernel.org, linux-s390@vger.kernel.org,
linux-fsdevel@vger.kernel.org, ocfs2-devel@oss.oracle.com,
linux-pm@vger.kernel.org, linux-mm@kvack.org,
linux-block@vger.kernel.org
Subject: remove blkdev_get as a public API
Date: Thu, 17 Sep 2020 18:57:06 +0200 [thread overview]
Message-ID: <20200917165720.3285256-1-hch@lst.de> (raw)
Hi Jens,
this series removes blkdev_get as a public API, leaving it as just an
implementation detail of blkdev_get_by_path and blkdev_get_by_dev. The
reason for that is that blkdev_get is a very confusing API that requires
a struct block_device to be fed in, but then actually consumes the
reference. And it turns out just using the two above mentioned APIs
actually significantly simplifies the code as well.
Diffstat:
block/genhd.c | 11 ++--
block/ioctl.c | 13 ++---
drivers/block/nbd.c | 8 +--
drivers/block/pktcdvd.c | 92 +++++-----------------------------------
drivers/block/zram/zram_drv.c | 7 +--
drivers/char/raw.c | 51 ++++++++--------------
drivers/ide/ide-gd.c | 2
drivers/s390/block/dasd_genhd.c | 13 +----
fs/block_dev.c | 12 ++---
fs/ocfs2/cluster/heartbeat.c | 28 ++++--------
include/linux/blk_types.h | 4 -
include/linux/blkdev.h | 1
include/linux/genhd.h | 2
include/linux/suspend.h | 4 -
include/linux/swap.h | 3 -
kernel/power/swap.c | 21 +++------
kernel/power/user.c | 26 +++--------
mm/swapfile.c | 45 ++++++++++---------
18 files changed, 119 insertions(+), 224 deletions(-)
next reply other threads:[~2020-09-17 17:00 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-17 16:57 Christoph Hellwig [this message]
2020-09-17 16:57 ` [PATCH 01/14] block: move the NEED_PART_SCAN flag to struct gendisk Christoph Hellwig
2020-09-24 8:56 ` Jan Kara
2020-09-17 16:57 ` [PATCH 02/14] block: switch register_disk to use blkdev_get_by_dev Christoph Hellwig
2020-09-18 8:52 ` Sergei Shtylyov
2020-09-19 5:15 ` Christoph Hellwig
2020-09-17 16:57 ` [PATCH 03/14] block: cleanup blkdev_bszset Christoph Hellwig
2020-09-17 16:57 ` [PATCH 04/14] pktcdvd: remove the if 0'ed pkt_start_recovery function Christoph Hellwig
2020-09-17 16:57 ` [PATCH 05/14] pktcdvd: use blkdev_get_by_dev instead of open coding it Christoph Hellwig
2020-09-17 16:57 ` [PATCH 06/14] zram: cleanup backing_dev_store Christoph Hellwig
2020-09-17 16:57 ` [PATCH 07/14] raw: don't keep unopened block device around Christoph Hellwig
2020-09-17 16:57 ` [PATCH 08/14] dasd: cleanup dasd_scan_partitions Christoph Hellwig
2020-09-17 16:57 ` [PATCH 09/14] ocfs2: cleanup o2hb_region_dev_store Christoph Hellwig
2020-09-18 2:11 ` Joseph Qi
2020-09-17 16:57 ` [PATCH 10/14] mm: cleanup claim_swapfile Christoph Hellwig
2020-09-17 16:57 ` [PATCH 11/14] PM: rewrite is_hibernate_resume_dev to not require an inode Christoph Hellwig
2020-09-17 17:26 ` Rafael J. Wysocki
2020-09-19 9:06 ` Pavel Machek
2020-09-17 16:57 ` [PATCH 12/14] mm: split swap_type_of Christoph Hellwig
2020-09-17 16:57 ` [PATCH 13/14] PM: mm: cleanup swsusp_swap_check Christoph Hellwig
2020-09-18 16:01 ` Rafael J. Wysocki
2020-09-19 9:06 ` Pavel Machek
2020-09-17 16:57 ` [PATCH 14/14] block: mark blkdev_get static Christoph Hellwig
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