Provides for pinning user space pages in memory, copying to iovecs,
and copying from sk_buffs including fragmented and chained sk_buffs.
Signed-off-by: Chris Leech <[EMAIL PROTECTED]>
---
drivers/dma/Makefile |3
drivers/dma/iovlock.c | 301
Chris Leech <[EMAIL PROTECTED]> wrote:
>
> +
> +#define NUM_PAGES_SPANNED(start, length) \
> + ((PAGE_ALIGN((unsigned long)start + length) - \
> + ((unsigned long)start & PAGE_MASK)) >> PAGE_SHIFT)
static inline all-lower-case functions are much nicer.
> +/*
> + * Lock down all the iovec
Provides for pinning user space pages in memory, copying to iovecs,
and copying from sk_buffs including fragmented and chained sk_buffs.
Signed-off-by: Chris Leech <[EMAIL PROTECTED]>
---
drivers/dma/Makefile |1
drivers/dma/iovlock.c | 320
