bdev_read_only

Name:bdev_read_only

Proto:int bdev_read_only(struct block_device *bdev)

Type:int

Parameter:

Type	Parameter	Name
struct block_device *	bdev

1601

If Not bdev Then Return 0

1603

Return policy

**Caller**
Name	Describe
__blkdev_issue_write_same	__blkdev_issue_write_same - generate number of bios with same page@bdev: target blockdev@sector: start sector@nr_sects: number of sectors to write@gfp_mask: memory allocation flags (for bio_alloc)@page: page containing data to write@biop: pointer to
__blkdev_issue_write_zeroes
__blkdev_issue_zero_pages
blkdev_ioctl	always keep this in sync with compat_blkdev_ioctl()
compat_blkdev_ioctl	Most of the generic ioctls are handled in the normal fallback path.This assumes the blkdev's low level compat_ioctl always returnsENOIOCTLCMD for unknown ioctls.
blkdev_zone_mgmt	lkdev_zone_mgmt - Execute a zone management operation on a range of zones@bdev: Target block device@op: Operation to be performed on the zones@sector: Start sector of the first zone to operate on@nr_sectors: Number of sectors, should be at least the
blkdev_get_by_path	lkdev_get_by_path - open a block device by name@path: path to the block device to open@mode: FMODE_* mask@holder: exclusive holder identifier Open the blockdevice described by the device file at @path. @mode* and @holder are identical to blkdev_get().
blkdev_write_iter	Write data to the block device. Only intended for the block device itself* and the raw driver which basically is a fake block device.* Does not take i_mutex for the write and thus is not for general purpose* use.

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