Re: [PATCH v5 0/6] coroutine rwlock downgrade fix, minor VDI changes

2021-03-24 Thread Paolo Bonzini
On 24/03/21 17:23, Stefan Hajnoczi wrote: On Wed, Mar 17, 2021 at 07:00:07PM +0100, Paolo Bonzini wrote: This is a resubmit of David Edmondson's series at https://patchew.org/QEMU/20210309144015.557477-1-david.edmond...@oracle.com/. After closer analysis on IRC, the CoRwlock's attempt to ensure

Re: [PATCH v5 0/6] coroutine rwlock downgrade fix, minor VDI changes

2021-03-24 Thread Stefan Hajnoczi
On Wed, Mar 17, 2021 at 07:00:07PM +0100, Paolo Bonzini wrote: > This is a resubmit of David Edmondson's series at > https://patchew.org/QEMU/20210309144015.557477-1-david.edmond...@oracle.com/. > After closer analysis on IRC, the CoRwlock's attempt to ensure > fairness turned out to be flawed. Th

Re: [PATCH v5 0/6] coroutine rwlock downgrade fix, minor VDI changes

2021-03-24 Thread Max Reitz
On 17.03.21 19:00, Paolo Bonzini wrote: This is a resubmit of David Edmondson's series at https://patchew.org/QEMU/20210309144015.557477-1-david.edmond...@oracle.com/. After closer analysis on IRC, the CoRwlock's attempt to ensure fairness turned out to be flawed. Therefore, this series reimplem

[PATCH v5 0/6] coroutine rwlock downgrade fix, minor VDI changes

2021-03-17 Thread Paolo Bonzini
This is a resubmit of David Edmondson's series at https://patchew.org/QEMU/20210309144015.557477-1-david.edmond...@oracle.com/. After closer analysis on IRC, the CoRwlock's attempt to ensure fairness turned out to be flawed. Therefore, this series reimplements CoRwlock without using a CoQueue. Tr