Re: Patch for block write clustering

Rik van Riel (
Wed, 4 Mar 1998 22:00:31 +0100 (MET)

On Wed, 4 Mar 1998, Gadi Oxman wrote:

> I think that Linux never used a systemwide request queue. We have a shared
> systemwide "free requests" pool, but each major has its own request queue.
> All block devices are using the code in drivers/block/ll_rw_blk.c to
> sort their request queue. The code supports several queues per major
> by the function get_queue(), which accepts a kdev_t and returns a pointer
> to the head of the queue. Usually, a single queue is returned for each
> major.

So what should we do to improve request sorting?
Where should we start?

| For Linux mm-patches, go to | "I'm busy managing memory.." |
| my homepage (via LinuxHQ). | |
| ...submissions welcome... | |

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to