[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCHv3 5/6] evtchn: remove the locking when unmasking an event channel
The event channel lock is no longer required to check if the port is valid. Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx> --- v3: - Use port_is_valid() again. --- xen/common/event_channel.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/xen/common/event_channel.c b/xen/common/event_channel.c index e7c4445..eabb4c8 100644 --- a/xen/common/event_channel.c +++ b/xen/common/event_channel.c @@ -978,8 +978,6 @@ int evtchn_unmask(unsigned int port) struct domain *d = current->domain; struct evtchn *evtchn; - ASSERT(spin_is_locked(&d->event_lock)); - if ( unlikely(!port_is_valid(d, port)) ) return -EINVAL; @@ -1146,9 +1144,7 @@ long do_event_channel_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg) struct evtchn_unmask unmask; if ( copy_from_guest(&unmask, arg, 1) != 0 ) return -EFAULT; - spin_lock(¤t->domain->event_lock); rc = evtchn_unmask(unmask.port); - spin_unlock(¤t->domain->event_lock); break; } -- 1.7.10.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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