void
ccwcache_cleanup (void)
{
int cachind;
/* Shrink the caches, if available */
for ( cachind = 0; cachind < CCW_NUMBER_CACHES; cachind ++ ) {
if ( ccw_cache[cachind] ) {
if ( kmem_cache_shrink(ccw_cache[cachind]) == 0 ) {
ccw_cache[cachind] = NULL;
}
kmem_cache_destroy(ccw_cache[cachind]);
}
}
debug_unregister( debug_area );
}
void
ccwcache_cleanup (void)
{
int cachind;
/* Shrink the caches, if available */
for ( cachind = 0; cachind < CCW_NUMBER_CACHES; cachind ++ ) {
if ( ccw_cache[cachind] ) {
#if 0 /* this is useless and could cause an OOPS in the worst case */
if ( kmem_cache_shrink(ccw_cache[cachind]) == 0 ) {
ccw_cache[cachind] = NULL;
}
#endif
kmem_cache_destroy(ccw_cache[cachind]);
}
}
debug_unregister( debug_area );
}
/*
* This is called from kswapd when we think we need some
* more memory, but aren't really sure how much. So we
* carefully try to free a _bit_ of our dcache, but not
* too much.
*
* Priority:
* 0 - very urgent: shrink everything
* ...
* 6 - base-level: try to shrink a bit.
*/
int shrink_dcache_memory(int priority, unsigned int gfp_mask)
{
int count = 0;
/*
* Nasty deadlock avoidance.
*
* ext2_new_block->getblk->GFP->shrink_dcache_memory->prune_dcache->
* prune_one_dentry->dput->dentry_iput->iput->inode->i_sb->s_op->
* put_inode->ext2_discard_prealloc->ext2_free_blocks->lock_super->
* DEADLOCK.
*
* We should make sure we don't hold the superblock lock over
* block allocations, but for now:
*/
if (!(gfp_mask & __GFP_FS))
return 0;
count = dentry_stat.nr_unused / priority;
prune_dcache(count);
return kmem_cache_shrink(dentry_cache);
}
static int __do_suspend(void *ignore)
{
int err;
extern void time_resume(void);
BUG_ON(smp_processor_id() != 0);
BUG_ON(in_interrupt());
#if defined(__i386__) || defined(__x86_64__)
if (xen_feature(XENFEAT_auto_translated_physmap)) {
printk(KERN_WARNING "Cannot suspend in "
"auto_translated_physmap mode.\n");
return -EOPNOTSUPP;
}
#endif
err = smp_suspend();
if (err)
return err;
xenbus_suspend();
preempt_disable();
#ifdef __i386__
kmem_cache_shrink(pgd_cache);
#endif
mm_pin_all();
local_irq_disable();
preempt_enable();
gnttab_suspend();
pre_suspend();
/*
* We'll stop somewhere inside this hypercall. When it returns,
* we'll start resuming after the restore.
*/
HYPERVISOR_suspend(virt_to_mfn(xen_start_info));
shutting_down = SHUTDOWN_INVALID;
post_suspend();
gnttab_resume();
irq_resume();
time_resume();
switch_idle_mm();
local_irq_enable();
xencons_resume();
xenbus_resume();
smp_resume();
return err;
}
acpi_status acpi_os_purge_cache(acpi_cache_t * cache)
{
kmem_cache_shrink(cache);
return (AE_OK);
}
static int __do_suspend(void *ignore)
{
int i, j, k, fpp, err;
extern unsigned long max_pfn;
extern unsigned long *pfn_to_mfn_frame_list_list;
extern unsigned long *pfn_to_mfn_frame_list[];
extern void time_resume(void);
BUG_ON(smp_processor_id() != 0);
BUG_ON(in_interrupt());
if (xen_feature(XENFEAT_auto_translated_physmap)) {
printk(KERN_WARNING "Cannot suspend in "
"auto_translated_physmap mode.\n");
return -EOPNOTSUPP;
}
err = smp_suspend();
if (err)
return err;
xenbus_suspend();
preempt_disable();
#ifdef __i386__
kmem_cache_shrink(pgd_cache);
#endif
mm_pin_all();
__cli();
preempt_enable();
gnttab_suspend();
HYPERVISOR_shared_info = (shared_info_t *)empty_zero_page;
clear_fixmap(FIX_SHARED_INFO);
xen_start_info->store_mfn = mfn_to_pfn(xen_start_info->store_mfn);
xen_start_info->console_mfn = mfn_to_pfn(xen_start_info->console_mfn);
/*
* We'll stop somewhere inside this hypercall. When it returns,
* we'll start resuming after the restore.
*/
HYPERVISOR_suspend(virt_to_mfn(xen_start_info));
shutting_down = SHUTDOWN_INVALID;
set_fixmap(FIX_SHARED_INFO, xen_start_info->shared_info);
HYPERVISOR_shared_info = (shared_info_t *)fix_to_virt(FIX_SHARED_INFO);
memset(empty_zero_page, 0, PAGE_SIZE);
HYPERVISOR_shared_info->arch.pfn_to_mfn_frame_list_list =
virt_to_mfn(pfn_to_mfn_frame_list_list);
fpp = PAGE_SIZE/sizeof(unsigned long);
for (i = 0, j = 0, k = -1; i < max_pfn; i += fpp, j++) {
if ((j % fpp) == 0) {
k++;
pfn_to_mfn_frame_list_list[k] =
virt_to_mfn(pfn_to_mfn_frame_list[k]);
j = 0;
}
pfn_to_mfn_frame_list[k][j] =
virt_to_mfn(&phys_to_machine_mapping[i]);
}
HYPERVISOR_shared_info->arch.max_pfn = max_pfn;
gnttab_resume();
irq_resume();
time_resume();
switch_idle_mm();
__sti();
xencons_resume();
xenbus_resume();
smp_resume();
return err;
}
static void i915_global_context_shrink(void)
{
kmem_cache_shrink(global.slab_ce);
}