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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Denis Efremov <efremov@linux.com>, Tim Waugh <tim@cyberelk.net>,
	Michal Simek <michal.simek@xilinx.com>,
	Borislav Petkov <bp@alien8.de>,
	"David S. Miller" <davem@davemloft.net>,
	Song Liu <song@kernel.org>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Finn Thain <fthain@telegraphics.com.au>,
	Michael Schmitz <schmitzmic@gmail.com>,
	linux-m68k@lists.linux-m68k.org, linux-block@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
	linux-raid@vger.kernel.org, linux-scsi@vger.kernel.org,
	linux-fsdevel@vger.kernel.org,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>
Subject: [PATCH 19/19] block: remove check_disk_change
Date: Tue,  8 Sep 2020 16:53:47 +0200	[thread overview]
Message-ID: <20200908145347.2992670-20-hch@lst.de> (raw)
In-Reply-To: <20200908145347.2992670-1-hch@lst.de>

Remove the now unused check_disk_change helper.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 fs/block_dev.c        | 20 --------------------
 include/linux/genhd.h |  1 -
 2 files changed, 21 deletions(-)

diff --git a/fs/block_dev.c b/fs/block_dev.c
index c6ac0bd22eca70..0b34955b9e360f 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1368,26 +1368,6 @@ void revalidate_disk_size(struct gendisk *disk, bool verbose)
 }
 EXPORT_SYMBOL(revalidate_disk_size);
 
-/*
- * This routine checks whether a removable media has been changed,
- * and invalidates all buffer-cache-entries in that case. This
- * is a relatively slow routine, so we have to try to minimize using
- * it. Thus it is called only upon a 'mount' or 'open'. This
- * is the best way of combining speed and utility, I think.
- * People changing diskettes in the middle of an operation deserve
- * to lose :-)
- */
-int check_disk_change(struct block_device *bdev)
-{
-	if (!bdev_check_media_change(bdev))
-		return 0;
-	if (bdev->bd_disk->fops->revalidate_disk)
-		bdev->bd_disk->fops->revalidate_disk(bdev->bd_disk);
-	return 1;
-}
-
-EXPORT_SYMBOL(check_disk_change);
-
 void bd_set_nr_sectors(struct block_device *bdev, sector_t sectors)
 {
 	spin_lock(&bdev->bd_size_lock);
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 322d48a207728a..1c97cf84f011a7 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -370,7 +370,6 @@ int register_blkdev(unsigned int major, const char *name);
 void unregister_blkdev(unsigned int major, const char *name);
 
 void revalidate_disk_size(struct gendisk *disk, bool verbose);
-int check_disk_change(struct block_device *bdev);
 bool bdev_check_media_change(struct block_device *bdev);
 int __invalidate_device(struct block_device *bdev, bool kill_dirty);
 void bd_set_nr_sectors(struct block_device *bdev, sector_t sectors);
-- 
2.28.0


  parent reply	other threads:[~2020-09-08 16:41 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-08 14:53 rework check_disk_change() v2 Christoph Hellwig
2020-09-08 14:53 ` [PATCH 01/19] block: add a bdev_check_media_change helper Christoph Hellwig
2020-09-09  6:59   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 02/19] amiflop: use bdev_check_media_change Christoph Hellwig
2020-09-09  6:59   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 03/19] ataflop: " Christoph Hellwig
2020-09-09  7:00   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 04/19] floppy: " Christoph Hellwig
2020-09-09  6:52   ` Johannes Thumshirn
2020-09-09  7:00   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 05/19] swim: " Christoph Hellwig
2020-09-09  7:01   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 06/19] swim: simplify media change handling Christoph Hellwig
2020-09-09  7:09   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 07/19] swim3: use bdev_check_media_changed Christoph Hellwig
2020-09-09  7:10   ` Hannes Reinecke
2020-09-09  7:50   ` Sergei Shtylyov
2020-09-08 14:53 ` [PATCH 08/19] xsysace: use bdev_check_media_change Christoph Hellwig
2020-09-09  7:10   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 09/19] xsysace: simplify media change handling Christoph Hellwig
2020-09-09  7:10   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 10/19] paride/pcd: use bdev_check_media_change Christoph Hellwig
2020-09-09  7:26   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 11/19] gdrom: " Christoph Hellwig
2020-09-09  7:27   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 12/19] ide-cd: use bdev_check_media_changed Christoph Hellwig
2020-09-09  7:27   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 13/19] ide-cd: remove idecd_revalidate_disk Christoph Hellwig
2020-09-09  7:28   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 14/19] ide-gd: stop using the disk events mechanism Christoph Hellwig
2020-09-09  7:32   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 15/19] md: use bdev_check_media_change Christoph Hellwig
2020-09-09  0:49   ` Song Liu
2020-09-09  7:34   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 16/19] sd: " Christoph Hellwig
2020-09-09  7:36   ` Hannes Reinecke
2020-09-09  7:52   ` Sergei Shtylyov
2020-09-08 14:53 ` [PATCH 17/19] sr: " Christoph Hellwig
2020-09-09  7:37   ` Hannes Reinecke
2020-09-08 14:53 ` [PATCH 18/19] sr: simplify sr_block_revalidate_disk Christoph Hellwig
2020-09-09  7:38   ` Hannes Reinecke
2020-09-08 14:53 ` Christoph Hellwig [this message]
2020-09-09  7:39   ` [PATCH 19/19] block: remove check_disk_change Hannes Reinecke
2020-09-10 15:54 ` rework check_disk_change() v2 Jens Axboe
  -- strict thread matches above, loose matches on Subject: below --
2020-09-02 14:11 rework check_disk_change() Christoph Hellwig
2020-09-02 14:12 ` [PATCH 19/19] block: remove check_disk_change Christoph Hellwig
2020-09-02 15:54   ` Johannes Thumshirn

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