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 01/10] mtd_blkdevs: don't override BLKFLSBUF
Date: Tue, 3 Nov 2020 11:00:09 +0100 [thread overview]
Message-ID: <20201103100018.683694-2-hch@lst.de> (raw)
In-Reply-To: <20201103100018.683694-1-hch@lst.de>
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 --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
next prev parent reply other threads:[~2020-11-03 10:04 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-03 10:00 block ioctl cleanups v2 Christoph Hellwig
2020-11-03 10:00 ` Christoph Hellwig [this message]
2020-11-03 10:00 ` [PATCH 02/10] block: don't call into the driver for BLKFLSBUF Christoph Hellwig
2020-11-03 10:00 ` [PATCH 03/10] block: add a new set_read_only method Christoph Hellwig
2020-11-03 10:00 ` [PATCH 04/10] rbd: implement ->set_read_only to hook into BLKROSET processing Christoph Hellwig
2020-11-03 10:00 ` [PATCH 05/10] md: " Christoph Hellwig
2020-11-06 0:59 ` Song Liu
2020-11-03 10:00 ` [PATCH 06/10] dasd: " Christoph Hellwig
2020-11-05 20:56 ` Stefan Haberland
2020-11-06 14:02 ` Christoph Hellwig
2020-11-06 16:08 ` Stefan Haberland
2020-11-03 10:00 ` [PATCH 07/10] block: don't call into the driver for BLKROSET Christoph Hellwig
2020-11-03 10:00 ` [PATCH 08/10] loop: use set_disk_ro Christoph Hellwig
2020-11-03 10:00 ` [PATCH 09/10] block: remove set_device_ro Christoph Hellwig
2020-11-03 10:00 ` [PATCH 10/10] block: remove __blkdev_driver_ioctl Christoph Hellwig
2020-11-11 7:58 ` block ioctl cleanups v2 Christoph Hellwig
2020-11-11 16:13 ` Jens Axboe
2020-11-11 16:20 ` Christoph Hellwig
2020-11-11 16:23 ` Jens Axboe
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