From 2558cb8dd4150512bc8ae6d505cdcd10d0cc46bb Mon Sep 17 00:00:00 2001 From: Wangyong Date: Tue, 7 Jan 2020 06:01:01 +0000 Subject: [PATCH] linux-aio: increasing MAX_EVENTS to a larger hardcoded value 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 Message-id: faa5781afd354a96a0be152b288f636f@h3c.com Message-Id: Signed-off-by: Stefan Hajnoczi --- block/linux-aio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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;