suse man page for bio_copy_user

Query: bio_copy_user

OS: suse

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

BIO_COPY_USER(9)						   The Linux VFS						  BIO_COPY_USER(9)

NAME
bio_copy_user - copy user data to bio
SYNOPSIS
struct bio * bio_copy_user(struct request_queue * q, struct rq_map_data * map_data, unsigned long uaddr, unsigned int len, int write_to_vm, gfp_t gfp_mask);
ARGUMENTS
q destination block queue map_data pointer to the rq_map_data holding pages (if necessary) uaddr start of user address len length in bytes write_to_vm bool indicating writing to pages or not gfp_mask memory allocation flags
DESCRIPTION
Prepares and returns a bio for indirect user io, bouncing data to/from kernel pages as necessary. Must be paired with call bio_uncopy_user on io completion.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 BIO_COPY_USER(9)
Related Man Pages
copyin(9) - freebsd
copyout_proc(9) - netbsd
copy(9) - opendarwin
copyin_nofault(9) - freebsd
copyout_nofault(9) - freebsd
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