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ANDROID: mm: Add vendor hook in rmqueue()

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Add a vendor hook for costly order page counting
and other vendor specific functions.

Bug: 174521902
Bug: 172987241
Signed-off-by: Chiawei Wang <chiaweiwang@google.com>
Change-Id: I89206727a462548cc3500b695d85c83ff003eec7
Signed-off-by: Richard Chang <richardycc@google.com>
(cherry picked from commit 369de3780428a17e9afece2f5747f03619d589b6)
Signed-off-by: liangjlee <liangjlee@google.com>
This commit is contained in:
Chiawei Wang 2021-02-18 10:43:50 +08:00 committed by Todd Kjos
parent 09ca291e0a
commit a22ff19ff6
3 changed files with 9 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
View File

@ -344,3 +344,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_vmscan_kswapd_done);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_compaction_begin);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_compaction_end);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_bus_iommu_probe);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rmqueue);

6
include/trace/hooks/mm.h
View File

@ -47,6 +47,12 @@ DECLARE_HOOK(android_vh_page_add_new_anon_rmap,
TP_PROTO(struct page *page, struct vm_area_struct *vma,
unsigned long address),
TP_ARGS(page, vma, address));
DECLARE_HOOK(android_vh_rmqueue,
TP_PROTO(struct zone *preferred_zone, struct zone *zone,
unsigned int order, gfp_t gfp_flags,
unsigned int alloc_flags, int migratetype),
TP_ARGS(preferred_zone, zone, order,
gfp_flags, alloc_flags, migratetype));
DECLARE_HOOK(android_vh_meminfo_proc_show,
TP_PROTO(struct seq_file *m),
TP_ARGS(m));

2
mm/page_alloc.c
View File

@ -3940,6 +3940,8 @@ struct page *rmqueue(struct zone *preferred_zone,
page = rmqueue_buddy(preferred_zone, zone, order, alloc_flags,
migratetype);
trace_android_vh_rmqueue(preferred_zone, zone, order,
gfp_flags, alloc_flags, migratetype);
out:
/* Separate test+clear to avoid unnecessary atomics */