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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Ilya Dryomov <idryomov@gmail.com>, Song Liu <song@kernel.org>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Stefan Haberland <sth@linux.ibm.com>,
	Jan Hoeppner <hoeppner@linux.ibm.com>,
	linux-block@vger.kernel.org, ceph-devel@vger.kernel.org,
	linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org,
	linux-mtd@lists.infradead.org, linux-s390@vger.kernel.org
Subject: [PATCH 01/11] mtd_blkdevs: don't override BLKFLSBUF
Date: Sat, 31 Oct 2020 09:58:00 +0100	[thread overview]
Message-ID: <20201031085810.450489-2-hch@lst.de> (raw)
In-Reply-To: <20201031085810.450489-1-hch@lst.de>

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

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

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,
 };
 
-- 
2.28.0


WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-raid@vger.kernel.org, Jan Hoeppner <hoeppner@linux.ibm.com>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	linux-s390@vger.kernel.org, Richard Weinberger <richard@nod.at>,
	linux-block@vger.kernel.org, Song Liu <song@kernel.org>,
	linux-bcache@vger.kernel.org, linux-mtd@lists.infradead.org,
	Stefan Haberland <sth@linux.ibm.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Ilya Dryomov <idryomov@gmail.com>,
	ceph-devel@vger.kernel.org
Subject: [PATCH 01/11] mtd_blkdevs: don't override BLKFLSBUF
Date: Sat, 31 Oct 2020 09:58:00 +0100	[thread overview]
Message-ID: <20201031085810.450489-2-hch@lst.de> (raw)
In-Reply-To: <20201031085810.450489-1-hch@lst.de>

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

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

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,
 };
 
-- 
2.28.0


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

  reply	other threads:[~2020-10-31  9:02 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-31  8:57 block ioctl cleanups Christoph Hellwig
2020-10-31  8:57 ` Christoph Hellwig
2020-10-31  8:58 ` Christoph Hellwig [this message]
2020-10-31  8:58   ` [PATCH 01/11] mtd_blkdevs: don't override BLKFLSBUF Christoph Hellwig
2020-10-31 21:32   ` Richard Weinberger
2020-10-31 21:32     ` Richard Weinberger
2020-10-31 23:11   ` antlists
2020-10-31 23:11     ` antlists
2020-10-31  8:58 ` [PATCH 02/11] mtip32xx: return -ENOTTY for all unhanled ioctls Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-10-31 14:58   ` Jens Axboe
2020-10-31 14:58     ` Jens Axboe
2020-11-01 10:27     ` Christoph Hellwig
2020-11-01 10:27       ` Christoph Hellwig
2020-11-01 16:45       ` Jens Axboe
2020-11-01 16:45         ` Jens Axboe
2020-10-31  8:58 ` [PATCH 03/11] block: don't call into the driver for BLKFLSBUF Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-10-31  8:58 ` [PATCH 04/11] block: add a new set_read_only method Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-10-31  8:58 ` [PATCH 05/11] rbd: implement ->set_read_only to hook into BLKROSET processing Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-11-02 11:30   ` Ilya Dryomov
2020-11-02 11:30     ` Ilya Dryomov
2020-10-31  8:58 ` [PATCH 06/11] md: " Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-11-03  0:19   ` James Troup
2020-11-03  0:19     ` James Troup
2020-11-03  9:32     ` Christoph Hellwig
2020-11-03  9:32       ` Christoph Hellwig
2020-10-31  8:58 ` [PATCH 07/11] dasd: " Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-10-31  8:58 ` [PATCH 08/11] block: don't call into the driver for BLKROSET Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-10-31  8:58 ` [PATCH 09/11] loop: use set_disk_ro Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-10-31  8:58 ` [PATCH 10/11] block: remove set_device_ro Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-10-31  8:58 ` [PATCH 11/11] block: remove __blkdev_driver_ioctl Christoph Hellwig
2020-10-31  8:58   ` Christoph Hellwig
2020-11-01 16:46 ` block ioctl cleanups Jens Axboe
2020-11-01 16:46   ` Jens Axboe

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