diff mbox series

[PULL,1/1] linux-aio: increasing MAX_EVENTS to a larger hardcoded value

Message ID 20200114093052.117848-2-stefanha@redhat.com (mailing list archive)
State New, archived
Headers show
Series [PULL,1/1] linux-aio: increasing MAX_EVENTS to a larger hardcoded value | expand

Commit Message

Stefan Hajnoczi Jan. 14, 2020, 9:30 a.m. UTC 
From: Wangyong <wang.yongD@h3c.com>

Since commit 6040aedddb5f474a9c2304b6a432a652d82b3d3c "virtio-blk:
make queue size configurable",if the user set the queue size to
more than 128 ,it will not take effect. That's because linux aio's
maximum outstanding requests at a time is always less than or equal
to 128.

This patch simply increase MAX_EVENTS to a larger hardcoded value of
1024 as a shortterm fix.

Signed-off-by: wangyong <wang.yongD@h3c.com>
Message-id: faa5781afd354a96a0be152b288f636f@h3c.com
Message-Id: <faa5781afd354a96a0be152b288f636f@h3c.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 block/linux-aio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/block/linux-aio.c b/block/linux-aio.c
index c7eca9a256..91204a25a2 100644
--- a/block/linux-aio.c
+++ b/block/linux-aio.c
@@ -26,7 +26,7 @@ 
  *      than this we will get EAGAIN from io_submit which is communicated to
  *      the guest as an I/O error.
  */
-#define MAX_EVENTS 128
+#define MAX_EVENTS 1024
 
 struct qemu_laiocb {
     Coroutine *co;