xen/evtchn: use smp barriers for user event ring

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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>

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Juergen Gross 2021-02-19 16:40:29 +01:00 • committed by Boris Ostrovsky

parent 06f45fe96f

commit d566995940

1 changed files with 2 additions and 2 deletions

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drivers/xen/evtchn.c

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