diff mbox series

[24/78] mtd_blkdevs: don't override BLKFLSBUF

Message ID	20201116145809.410558-25-hch@lst.de
State	New
Headers	show Return-Path: <ceph-devel-owner@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B68CB20867 From: Christoph Hellwig <hch@lst.de> To: Jens Axboe <axboe@kernel.dk> Cc: Justin Sanders <justin@coraid.com>, Josef Bacik <josef@toxicpanda.com>, Ilya Dryomov <idryomov@gmail.com>, Jack Wang <jinpu.wang@cloud.ionos.com>, "Michael S. Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, =?utf-8?q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com>, Minchan Kim <minchan@kernel.org>, Mike Snitzer <snitzer@redhat.com>, Song Liu <song@kernel.org>, "Martin K. Petersen" <martin.petersen@oracle.com>, dm-devel@redhat.com, linux-block@vger.kernel.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, ceph-devel@vger.kernel.org, xen-devel@lists.xenproject.org, linux-raid@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, linux-fsdevel@vger.kernel.org, Richard Weinberger <richard@nod.at> Subject: [PATCH 24/78] mtd_blkdevs: don't override BLKFLSBUF Date: Mon, 16 Nov 2020 15:57:15 +0100 Message-Id: <20201116145809.410558-25-hch@lst.de> In-Reply-To: <20201116145809.410558-1-hch@lst.de> References: <20201116145809.410558-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	[01/78] block: remove the call to __invalidate_device in check_disk_size_change \| expand [01/78] block: remove the call to __invalidate_device in check_disk_size_change [02/78] loop: let set_capacity_revalidate_and_notify update the bdev size [03/78] nvme: let set_capacity_revalidate_and_notify update the bdev size [04/78] sd: update the bdev size in sd_revalidate_disk [05/78] block: remove the update_bdev parameter to set_capacity_revalidate_and_notify [06/78] nbd: remove the call to set_blocksize [07/78] nbd: move the task_recv check into nbd_size_update [08/78] nbd: refactor size updates [09/78] nbd: validate the block size in nbd_set_size [10/78] nbd: use set_capacity_and_notify [11/78] aoe: don't call set_capacity from irq context [12/78] dm: use set_capacity_and_notify [13/78] pktcdvd: use set_capacity_and_notify [14/78] nvme: use set_capacity_and_notify in nvme_set_queue_dying [15/78] drbd: use set_capacity_and_notify [16/78] rbd: use set_capacity_and_notify [17/78] rnbd: use set_capacity_and_notify [18/78] zram: use set_capacity_and_notify [19/78] dm-raid: use set_capacity_and_notify [20/78] md: use set_capacity_and_notify [21/78] md: remove a spurious call to revalidate_disk_size in update_size [22/78] virtio-blk: remove a spurious call to revalidate_disk_size [23/78] block: unexport revalidate_disk_size [24/78] mtd_blkdevs: don't override BLKFLSBUF [25/78] block: don't call into the driver for BLKFLSBUF [26/78] block: add a new set_read_only method [27/78] rbd: implement ->set_read_only to hook into BLKROSET processing [28/78] md: implement ->set_read_only to hook into BLKROSET processing [29/78] dasd: implement ->set_read_only to hook into BLKROSET processing [30/78] block: don't call into the driver for BLKROSET [31/78] loop: use set_disk_ro [32/78] block: remove set_device_ro [33/78] block: remove __blkdev_driver_ioctl [34/78] block: propagate BLKROSET to all partitions [35/78] block: cleanup del_gendisk a bit [36/78] block: open code kobj_map into in block/genhd.c [37/78] block: split block_class_lock [38/78] block: rework requesting modules for unclaimed devices [39/78] block: add an optional probe callback to major_names [40/78] ide: remove ide_{,un}register_region [41/78] swim: don't call blk_register_region [42/78] sd: use __register_blkdev to avoid a modprobe for an unregistered dev_t [43/78] brd: use __register_blkdev to allocate devices on demand [44/78] loop: use __register_blkdev to allocate devices on demand [45/78] md: use __register_blkdev to allocate devices on demand [46/78] ide: switch to __register_blkdev for command set probing [47/78] floppy: use a separate gendisk for each media format [48/78] amiflop: use separate gendisks for Amiga vs MS-DOS mode [49/78] ataflop: use a separate gendisk for each media format [50/78] z2ram: reindent [51/78] z2ram: use separate gendisk for the different modes [52/78] block: switch gendisk lookup to a simple xarray [53/78] blk-cgroup: fix a hd_struct leak in blkcg_fill_root_iostats [54/78] block: remove a duplicate __disk_get_part prototype [55/78] block: change the hash used for looking up block devices [56/78] init: refactor name_to_dev_t [57/78] init: refactor devt_from_partuuid [58/78] init: cleanup match_dev_by_uuid and match_dev_by_label [59/78] mtip32xx: remove the call to fsync_bdev on removal [60/78] zram: remove the claim mechanism [61/78] zram: do not call set_blocksize [62/78] loop: do not call set_blocksize [63/78] bcache: remove a superflous lookup_bdev all [64/78] dm: simplify flush_bio initialization in __send_empty_flush [65/78] dm: remove the block_device reference in struct mapped_device [66/78] block: keep a block_device reference for each hd_struct [67/78] block: simplify the block device claiming interface [68/78] block: remove ->bd_contains [69/78] block: remove the nr_sects field in struct hd_struct [70/78] block: replace bd_mutex with a per-gendisk mutex [71/78] block: add a bdev_kobj helper [72/78] block: use disk_part_iter_exit in disk_part_iter_next [73/78] block: use put_device in put_disk [74/78] block: merge struct block_device and struct hd_struct [75/78] block: stop using bdget_disk for partition 0 [76/78] filemap: use ->f_mapping over ->i_mapping consistently [77/78] fs: simplify the get_super_thawed interface [78/78] block: remove i_bdev

Commit Message

Christoph Hellwig Nov. 16, 2020, 2:57 p.m. UTC

BLKFLSBUF is not supposed to actually send a flush command to the device,
but to tear down buffer cache structures.  Remove the mtd_blkdevs
implementation and just use the default semantics instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Richard Weinberger <richard@nod.at>
---
 drivers/mtd/mtd_blkdevs.c | 28 ----------------------------
 1 file changed, 28 deletions(-)

diff mbox series

Patch

diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 0c05f77f9b216e..fb8e12d590a13a 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -298,38 +298,10 @@  static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 	return ret;
 }
 
-static int blktrans_ioctl(struct block_device *bdev, fmode_t mode,
-			      unsigned int cmd, unsigned long arg)
-{
-	struct mtd_blktrans_dev *dev = blktrans_dev_get(bdev->bd_disk);
-	int ret = -ENXIO;
-
-	if (!dev)
-		return ret;
-
-	mutex_lock(&dev->lock);
-
-	if (!dev->mtd)
-		goto unlock;
-
-	switch (cmd) {
-	case BLKFLSBUF:
-		ret = dev->tr->flush ? dev->tr->flush(dev) : 0;
-		break;
-	default:
-		ret = -ENOTTY;
-	}
-unlock:
-	mutex_unlock(&dev->lock);
-	blktrans_dev_put(dev);
-	return ret;
-}
-
 static const struct block_device_operations mtd_block_ops = {
 	.owner		= THIS_MODULE,
 	.open		= blktrans_open,
 	.release	= blktrans_release,
-	.ioctl		= blktrans_ioctl,
 	.getgeo		= blktrans_getgeo,
 };