ksys_getdents64

Name:ksys_getdents64

Proto:int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, unsigned int count)

Type:int

Parameter:

Type	Parameter	Name
unsigned int	fd
struct linux_dirent64 __user *	dirent
unsigned int	count

357

struct getdents_callback64 buf = {actor = filldir64, count = count, current_dir = dirent}

364

If Not access_ok - Checks if a user space pointer is valid*@addr: User space pointer to start of block to check*@size: Size of block to check* Context: User context only. This function may sleep if pagefaults are* enabled.(dirent, count) Then Return -EFAULT

367

f = fdget_pos(fd)

368

If Not file Then Return -EBADF

371

error = iterate_dir(file, & ctx)

372

If error >= 0 Then error = error

374

If prev_reclen Then

375

__user * lastdirent

376

378

lastdirent = current_dir - prev_reclen

379

If Write a simple value into user space, with less checking(d_off, & d_off) Then error = -EFAULT

381

Else error = count - count

384

385

Return error

**Caller**
Name	Describe
SYSCALL_DEFINE3

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