diff options
| author |   Christoph Hellwig <hch@lst.de> | 2020-11-03 11:00:11 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2020-11-16 08:14:29 -0700 |
| commit | e00adcadf3af7a8335026d71ab9f0e0a922191ac (patch) | |
| tree | 7d7f22326e387ef08b23cf9a3a76e6f16fc1b089 /include/linux/blkdev.h | |
| parent | block: don't call into the driver for BLKFLSBUF (diff) | |
| download | linux-dev-e00adcadf3af7a8335026d71ab9f0e0a922191ac.tar.xz linux-dev-e00adcadf3af7a8335026d71ab9f0e0a922191ac.zip | |
block: add a new set_read_only method
Add a new method to allow for driver-specific processing when setting or
clearing the block device read-only state. This allows to replace the
cumbersome and error-prone override of the whole ioctl implementation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 639cae2c158b..5c1ba8a8d2bc 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1850,6 +1850,7 @@ struct block_device_operations { void (*unlock_native_capacity) (struct gendisk *); int (*revalidate_disk) (struct gendisk *); int (*getgeo)(struct block_device *, struct hd_geometry *); + int (*set_read_only)(struct block_device *bdev, bool ro); /* this callback is with swap_lock and sometimes page table lock held */ void (*swap_slot_free_notify) (struct block_device *, unsigned long); int (*report_zones)(struct gendisk *, sector_t sector, |