]> git.baikalelectronics.ru Git - kernel.git/commit
xen/evtchn: use smp barriers for user event ring
authorJuergen Gross <jgross@suse.com>
Fri, 19 Feb 2021 15:40:29 +0000 (16:40 +0100)
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tue, 23 Feb 2021 16:07:43 +0000 (10:07 -0600)
commit8fc516738c0584f9af8e1f20c679cda282b29540
tree6e9f33c0b10c24116a31dfeab1e1ee9b64de1bfc
parent11f54571e2f4ffc77bba3ec6c9c046d67f7e480c
xen/evtchn: use smp barriers for user event ring

The ring buffer for user events is local to the given kernel instance,
so smp barriers are fine for ensuring consistency.

Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Link: https://lore.kernel.org/r/20210219154030.10892-8-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
drivers/xen/evtchn.c