@@ -1272,7 +1272,7 @@ void __init noreturn __start_xen(unsigned long mbi_p)
init_domheap_pages(s, e);
}
- if ( opt_tmem )
+ if ( tmem_enabled() )
{
printk(XENLOG_WARNING
"TMEM physical RAM limit exceeded, disabling TMEM\n");
@@ -202,7 +202,7 @@ static void populate_physmap(struct memop_args *a)
if ( unlikely(!page) )
{
- if ( !opt_tmem || a->extent_order )
+ if ( !tmem_enabled() || a->extent_order )
gdprintk(XENLOG_INFO,
"Could not allocate order=%u extent: id=%d memflags=%#x (%u of %u)\n",
a->extent_order, d->domain_id, a->memflags,
@@ -652,7 +652,7 @@ static void __init setup_low_mem_virq(void)
static void check_low_mem_virq(void)
{
unsigned long avail_pages = total_avail_pages +
- (opt_tmem ? tmem_freeable_pages() : 0) - outstanding_claims;
+ tmem_freeable_pages() - outstanding_claims;
if ( unlikely(avail_pages <= low_mem_virq_th) )
{
@@ -738,7 +738,7 @@ static struct page_info *alloc_heap_pages(
* Others try tmem pools then fail. This is a workaround until all
* post-dom0-creation-multi-page allocations can be eliminated.
*/
- if ( opt_tmem && ((order == 0) || (order >= 9)) &&
+ if ( ((order == 0) || (order >= 9)) &&
(total_avail_pages <= midsize_alloc_zone_pages) &&
tmem_freeable_pages() )
goto try_tmem;
@@ -984,7 +984,7 @@ static void free_heap_pages(
avail[node][zone] += 1 << order;
total_avail_pages += 1 << order;
- if ( opt_tmem )
+ if ( tmem_enabled() )
midsize_alloc_zone_pages = max(
midsize_alloc_zone_pages, total_avail_pages / MIDSIZE_ALLOC_FRAC);
@@ -1755,7 +1755,7 @@ int assign_pages(
{
if ( unlikely((d->tot_pages + (1 << order)) > d->max_pages) )
{
- if ( !opt_tmem || order != 0 || d->tot_pages != d->max_pages )
+ if ( !tmem_enabled() || order != 0 || d->tot_pages != d->max_pages )
gprintk(XENLOG_INFO, "Over-allocation for domain %u: "
"%u > %u\n", d->domain_id,
d->tot_pages + (1 << order), d->max_pages);
@@ -2837,6 +2837,9 @@ void *tmem_relinquish_pages(unsigned int order, unsigned int memflags)
unsigned long tmem_freeable_pages(void)
{
+ if ( !tmem_enabled() )
+ return 0;
+
return tmem_page_list_pages + _atomic_read(freeable_page_count);
}