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Make first argument of Xen's pmap_pte_cas() volatile, fix a warning

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building pmap.c.
This commit is contained in:
bouyer 2008-01-20 18:41:47 +00:00
parent 3615cf7715
commit 3d0b4af882
2 changed files with 6 additions and 6 deletions
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6
sys/arch/amd64/include/pmap.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.h,v 1.19 2008/01/13 07:05:42 yamt Exp $ */
/* $NetBSD: pmap.h,v 1.20 2008/01/20 18:41:47 bouyer Exp $ */
/*
*
@ -286,13 +286,13 @@ pmap_pte_set(pt_entry_t *pte, pt_entry_t npte)
}
static __inline pt_entry_t
pmap_pte_cas(pt_entry_t *ptep, pt_entry_t o, pt_entry_t n)
pmap_pte_cas(volatile pt_entry_t *ptep, pt_entry_t o, pt_entry_t n)
{
int s = splvm();
pt_entry_t opte = *ptep;
if (opte == o) {
xpq_queue_pte_update((pt_entry_t *)xpmap_ptetomach(ptep), n);
xpq_queue_pte_update((pt_entry_t *)xpmap_ptetomach(__UNVOLATILE(ptep)), n);
xpq_flush_queue();
}
splx(s);

6
sys/arch/i386/include/pmap.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.h,v 1.100 2008/01/13 07:05:42 yamt Exp $ */
/* $NetBSD: pmap.h,v 1.101 2008/01/20 18:41:48 bouyer Exp $ */
/*
*
@ -306,13 +306,13 @@ pmap_pte_set(pt_entry_t *pte, pt_entry_t npte)
}
static __inline pt_entry_t
pmap_pte_cas(pt_entry_t *ptep, pt_entry_t o, pt_entry_t n)
pmap_pte_cas(volatile pt_entry_t *ptep, pt_entry_t o, pt_entry_t n)
{
int s = splvm();
pt_entry_t opte = *ptep;
if (opte == o) {
xpq_queue_pte_update((pt_entry_t *)xpmap_ptetomach(ptep), n);
xpq_queue_pte_update((pt_entry_t *)xpmap_ptetomach(__UNVOLATILE(ptep)), n);
xpq_flush_queue();
}
splx(s);