[PATCH] loop 7/9 remove blk_queue_bounce

From: Hugh Dickins (hugh@veritas.com)
Date: Tue Jun 10 2003 - 10:35:56 EST


What purpose does loop_make_request's blk_queue_bounce serve? None,
it's just a relic from before the kmaps were added to loop's transfers,
and ties up mempooled resources - in the file-backed case, with no
guarantee they'll soon be freed. And what purpose does loop_set_fd's
blk_queue_bounce_limit serve? None, blk_queue_make_request did that.

--- loop6/drivers/block/loop.c Tue Jun 10 12:56:34 2003
+++ loop7/drivers/block/loop.c Tue Jun 10 12:59:47 2003
@@ -548,8 +548,6 @@
                 goto err;
         }
 
- blk_queue_bounce(q, &old_bio);
-
         /*
          * file backed, queue for loop_thread to handle
          */
@@ -742,7 +740,6 @@
          * device
          */
         blk_queue_make_request(&lo->lo_queue, loop_make_request);
- blk_queue_bounce_limit(&lo->lo_queue, BLK_BOUNCE_HIGH);
         lo->lo_queue.queuedata = lo;
 
         /*

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sun Jun 15 2003 - 22:00:24 EST