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linux-aio: increasing MAX_EVENTS to a larger hardcoded value

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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>
This commit is contained in:
Wangyong 2020-01-07 06:01:01 +00:00 committed by Stefan Hajnoczi
parent dc65a5bdc9
commit 2558cb8dd4
1 changed files with 1 additions and 1 deletions
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2
block/linux-aio.c
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@ -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;