copy_to_high_bio

Name:Simple bounce buffer support for highmem pages. Depending on the* queue gfp mask set, *to may or may not be a highmem page. kmap it* always, it will do the Right Thing

Proto:static void copy_to_high_bio_irq(struct bio *to, struct bio *from)

Type:void

Parameter:

Type	Parameter	Name
struct bio *	to
struct bio *	from

142

from_iter = r iterating one bio from start to end

144

bio_for_each_segment(tovec, to, iter)

145

fromvec = bio_iter_iovec(from, from_iter)

146

If bv_page != bv_page Then

152

vfrom = page_address(bv_page) + bv_offset

155

bounce_copy_vec( & tovec, vfrom)

156

flush_dcache_page(bv_page)

158

bio_advance_iter(from, & from_iter, bv_len)

**Caller**
Name	Describe
__bounce_end_io_read

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion

Function report