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ANDROID: mm: Added zone_pageset_high_and_batch_update

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Added a new function zone_pageset_high_and_batch_update, which is like
zone_pcp_update but with new high_min, high_max and batch values provided
directly by the caller (rather than returned by zone_highsize). This gives
vendors an interface to directly tune the pageset to suit varying loads.

Bug: 431672372
Change-Id: Icd1e297f4cfb2309b36caa7f7c61b1c7c7cd9f24
Signed-off-by: Pengfei Li <pengfei.kernel@vivo.corp-partner.google.com>
This commit is contained in:
Pengfei Li
2025-07-14 10:28:21 +08:00
committed by T.J. Mercier
parent e3489f30ee
commit 97187b040e
2 changed files with 19 additions and 0 deletions
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include/linux/mm.h
+3
View File
@@ -4291,6 +4291,9 @@ void vma_pgtable_walk_end(struct vm_area_struct *vma);
int reserve_mem_find_by_name(const char *name, phys_addr_t *start, phys_addr_t *size);
void zone_pageset_high_and_batch_update(struct zone *zone, int new_high_min,
int new_high_max, int new_batch);
#ifdef CONFIG_64BIT
int do_mseal(unsigned long start, size_t len_in, unsigned long flags);
#else
mm/page_alloc.c
+16
View File
@@ -6217,6 +6217,22 @@ static void zone_pcp_update(struct zone *zone, int cpu_online)
mutex_unlock(&pcp_batch_high_lock);
}
void zone_pageset_high_and_batch_update(struct zone *zone, int new_high_min,
int new_high_max, int new_batch)
{
mutex_lock(&pcp_batch_high_lock);
zone->pageset_high_min = new_high_min;
zone->pageset_high_max = new_high_max;
zone->pageset_batch = new_batch;
__zone_set_pageset_high_and_batch(zone, new_high_min, new_high_max,
new_batch);
mutex_unlock(&pcp_batch_high_lock);
}
EXPORT_SYMBOL_GPL(zone_pageset_high_and_batch_update);
static void zone_pcp_update_cacheinfo(struct zone *zone, unsigned int cpu)
{
struct per_cpu_pages *pcp;