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ANDROID: vendor_hooks: Add hooks to madvise_cold_or_pageout_pte_range()

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Provide a vendor hook android_vh_page_isolated_for_reclaim to
process whether the page should be reclaimed to a specified
swap(i.e., the expanded memory).
This strategy will take into account the state of the current
process/application, resource usage, and other information.

Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Id80a377c87bea13922e7b23963b050ab37ba0cb0
This commit is contained in:
Bing Han
2022-05-30 14:34:16 +08:00
committed by Treehugger Robot
parent 6b7243da5e
commit e3f469befb
3 changed files with 8 additions and 1 deletions
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1
drivers/android/vendor_hooks.c
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@@ -407,5 +407,6 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_handle_tlb_conf);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_shrink_node_memcgs); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_shrink_node_memcgs);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ra_tuning_max_page); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ra_tuning_max_page);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_tune_memcg_scan_type); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_tune_memcg_scan_type);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_page_isolated_for_reclaim);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_inactive_is_low); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_inactive_is_low);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_snapshot_refaults); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_snapshot_refaults);

3
include/trace/hooks/mm.h
View File

@@ -149,6 +149,9 @@ DECLARE_HOOK(android_vh_subpage_dma_contig_alloc,
DECLARE_HOOK(android_vh_ra_tuning_max_page, DECLARE_HOOK(android_vh_ra_tuning_max_page,
TP_PROTO(struct readahead_control *ractl, unsigned long *max_page), TP_PROTO(struct readahead_control *ractl, unsigned long *max_page),
TP_ARGS(ractl, max_page)); TP_ARGS(ractl, max_page));
DECLARE_HOOK(android_vh_page_isolated_for_reclaim,
TP_PROTO(struct mm_struct *mm, struct page *page),
TP_ARGS(mm, page));
/* macro versions of hooks are no longer required */ /* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_MM_H */ #endif /* _TRACE_HOOK_MM_H */

5
mm/madvise.c
View File

@@ -29,6 +29,7 @@
#include <linux/swapops.h> #include <linux/swapops.h>
#include <linux/shmem_fs.h> #include <linux/shmem_fs.h>
#include <linux/mmu_notifier.h> #include <linux/mmu_notifier.h>
#include <trace/hooks/mm.h>
#include <asm/tlb.h> #include <asm/tlb.h>
@@ -462,8 +463,10 @@ regular_page:
if (!isolate_lru_page(page)) { if (!isolate_lru_page(page)) {
if (PageUnevictable(page)) if (PageUnevictable(page))
putback_lru_page(page); putback_lru_page(page);
else else {
list_add(&page->lru, &page_list); list_add(&page->lru, &page_list);
trace_android_vh_page_isolated_for_reclaim(mm, page);
}
} }
} else } else
deactivate_page(page); deactivate_page(page);