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SubjectRe: splice methods in character device driver
Hello Jens,

On Mon, Jun 8, 2009 at 9:05 AM, Jens Axboe<> wrote:
> On Sat, Jun 06 2009, Leon Woestenberg wrote:
>> How can I pass information from the splice_read(), which spawns a hardware
>> DMA to the pages in my case, to the confirm() hook which is called at some
>> (random) time in the future?
> There's a ->private for each pipe_buffer, so you can pass along info on
> a per-page granularity.
So, this means in my driver's splice_read(), I must set
pipe->bufs[i]->private for each 0 <= i < PIPE_BUFFERS?

struct pipe_buffer {
unsigned long private;
struct pipe_inode_info {
struct pipe_buffer bufs[PIPE_BUFFERS];
static int splice_read(..., struct pipe_inode_info *pipe, ...)


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