diff options
Diffstat (limited to 'sys/xen')
| -rw-r--r-- | sys/xen/evtchn/evtchn.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/sys/xen/evtchn/evtchn.c b/sys/xen/evtchn/evtchn.c index b4053eb..eb18b57 100644 --- a/sys/xen/evtchn/evtchn.c +++ b/sys/xen/evtchn/evtchn.c @@ -44,7 +44,15 @@ static inline unsigned long __ffs(unsigned long word) return word; } +/* + * irq_mapping_update_lock: in order to allow an interrupt to occur in a critical + * section, to set pcpu->ipending (etc...) properly, we + * must be able to get the icu lock, so it can't be + * under witness. + */ static struct mtx irq_mapping_update_lock; +MTX_SYSINIT(irq_mapping_update_lock, &irq_mapping_update_lock, "xp", MTX_SPIN); + static struct xenpic *xp; struct xenpic_intsrc { struct intsrc xp_intsrc; @@ -1130,11 +1138,4 @@ evtchn_init(void *dummy __unused) } SYSINIT(evtchn_init, SI_SUB_INTR, SI_ORDER_MIDDLE, evtchn_init, NULL); - /* - * irq_mapping_update_lock: in order to allow an interrupt to occur in a critical - * section, to set pcpu->ipending (etc...) properly, we - * must be able to get the icu lock, so it can't be - * under witness. - */ -MTX_SYSINIT(irq_mapping_update_lock, &irq_mapping_update_lock, "xp", MTX_SPIN); |
