Re: Re: [PATCH] mem-prealloc: initialize cond and mutex(Internet mail)

[陈蒙蒙]

oh ,yes.Thanks

I want to know if I submit a new fixed patch or just a patch fixed current problem?? 

if a new fixed patch, maybe need a revert ?

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bauerchen(陈蒙蒙)

 

From: Igor Mammedov

Date: 2020-03-09 21:19

To: bauerchen(陈蒙蒙)

CC: borntraeger; pbonzini; qemu-devel; qemu-s390x; mhartmay

Subject: Re: [PATCH] mem-prealloc: initialize cond and mutex(Internet mail)

On Mon, 9 Mar 2020 11:16:10 +0000

bauerchen(陈蒙蒙) <address@hidden> wrote:

 

> Thanks,  in fact,do_touch_pages is called just when vm starts up, but using init flag and Gonce maybe more elegant !

> if needed,I can submit a new patch !

> thanks very much!

 

it's called from os_mem_prealloc() -> touch_all_pages() which is called

at least once per an instance of hotsmem backend. So if several backends

are used then it should be called several times.

The same applies when a hostmem backend is added during runtime (hotplug)