tree 7524d3f5d224def071278c1bfd13edffefbbd129
parent 2b175e42137982df924f78509a3819d4f7698c09
author Yaguang Tang <yaguang.tang@vexxhost.com> 1738945033 +0800
committer Yaguang Tang <yaguang.tang@vexxhost.com> 1739309009 +0000

add kernel option aio-max-nr for aio=native storage

For VMs that have disks with aio=native, the qemu will request an
io_setup with nr_events=1024, and hence on each VM startup, the
fs.aio-nr will be incremented by 1024. Once it reaches the
fs.aio-max-nrlimit (65536 by default), the new io_setup request
from the newly spawned VMs will fail with EAGAIN

Change-Id: I564d6b99e43e05b051de62d9aea2a1fe41dacd8a