[lkml]   [2019]   [Aug]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH V4 7/9] vhost: do not use RCU to synchronize MMU notifier with worker
On Thu, Aug 08, 2019 at 08:54:54PM +0800, Jason Wang wrote:

> I don't have any objection to convert  to spinlock() but just want to
> know if any case that the above smp_mb() + counter looks good to you?

This email is horribly mangled, but I don't think mixing smb_mb() and
smp_load_acquire() would be considerd a best-practice, and using
smp_store_release() instead would be the wrong barrier.

spinlock does seem to be the only existing locking primitive that does
what is needed here.


 \ /
  Last update: 2019-08-08 15:05    [W:0.078 / U:14.320 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site