Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\ioctl.c Create Date:2022-07-28 17:16:18
Last Modify:2020-03-12 14:18:49 Copyright©Brick
home page Tree
Annotation kernel can get tool activityDownload SCCTChinese

Name:blkdev_pr_register

Proto:static int blkdev_pr_register(struct block_device *bdev, struct pr_registration __user *arg)

Type:int

Parameter:

TypeParameterName
struct block_device *bdev
struct pr_registration __user *arg
291  ops = pr_ops
294  If Not Check operation authority Then Return -EPERM
296  If Not ops || Not pr_register Then Return -EOPNOTSUPP
298  If copy_from_user( & reg, arg, size of reg ) Then Return -EFAULT
301  If flags & ~gnore existing key Then Return -EOPNOTSUPP
303  Return pr_register(bdev, old_key, new_key, flags)
Caller
NameDescribe
blkdev_ioctlalways keep this in sync with compat_blkdev_ioctl()