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ANDROID: mm: add vendor hook to trace shrink_node

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This is to adjust parameters between different memcgs to achieve
more accurate memory reclamation.

Bug: 423742169

Bug: 373540729
Change-Id: Ifb97a144c057555c5f9181f357fa146f9509be3e
Signed-off-by: Jianan Huang <huangjianan@xiaomi.com>
(cherry picked from commit 9d6f981a89e6e289f114270e2f1738b2b6fdd2ab)
(cherry picked from commit ff55f3e7ea69a22fdba2e415532d7bce00d15561)
This commit is contained in:
Jianan Huang
2024-10-15 14:47:56 +08:00
committed by Giuliano Procida
parent 1da7155f07
commit ac2a74af54
3 changed files with 5 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
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@@ -564,3 +564,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_tsk_need_resched_lazy);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_pr_set_vma_name_bypass);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mem_cgroup_charge);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_filemap_add_folio);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_shrink_node);

3
include/trace/hooks/vmscan.h
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@@ -105,6 +105,9 @@ DECLARE_HOOK(android_vh_direct_reclaim_end,
DECLARE_HOOK(android_vh_throttle_direct_reclaim_bypass,
TP_PROTO(bool *bypass),
TP_ARGS(bypass));
DECLARE_HOOK(android_vh_shrink_node,
TP_PROTO(pg_data_t *pgdat, struct mem_cgroup *memcg),
TP_ARGS(pgdat, memcg));
DECLARE_HOOK(android_vh_shrink_node_memcgs,
TP_PROTO(struct mem_cgroup *memcg, bool *skip),
TP_ARGS(memcg, skip));

1
mm/vmscan.c
View File

@@ -6099,6 +6099,7 @@ static void shrink_node(pg_data_t *pgdat, struct scan_control *sc)
struct lruvec *target_lruvec;
bool reclaimable = false;
trace_android_vh_shrink_node(pgdat, sc->target_mem_cgroup);
if (lru_gen_enabled() && root_reclaim(sc)) {
memset(&sc->nr, 0, sizeof(sc->nr));
lru_gen_shrink_node(pgdat, sc);