Limit each request to 1 page, so that the request throttling also limits the
number of in-flight pages.
Signed-off-by: Peter Zijlstra <[email protected]>
Signed-off-by: Daniel Phillips <[email protected]>
CC: Pavel Machek <[email protected]>
---
drivers/block/nbd.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
Index: linux-2.6/drivers/block/nbd.c
===================================================================
--- linux-2.6.orig/drivers/block/nbd.c 2006-09-07 18:43:41.000000000 +0200
+++ linux-2.6/drivers/block/nbd.c 2006-09-07 18:44:12.000000000 +0200
@@ -638,6 +638,9 @@ static int __init nbd_init(void)
put_disk(disk);
goto out;
}
+ blk_queue_max_segment_size(disk->queue, PAGE_SIZE);
+ blk_queue_max_hw_segments(disk->queue, 1);
+ blk_queue_max_phys_segments(disk->queue, 1);
}
if (register_blkdev(NBD_MAJOR, "nbd")) {
--
-
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