moonjuice/kernel_arpi
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ANDROID: vendor_hooks: Add hook in shrink_node_memcgs

Browse Source 
Add vendor hook in shrink_node_memcgs to adjust whether
to skip memory reclamation of memcg.

Bug: 226482420
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Change-Id: I925856353e63c5a821027de4f8476c833e21b982
This commit is contained in:
Liujie Xie
2022-06-01 15:38:17 +08:00
committed by Suren Baghdasaryan
parent 120823bf95
commit d1b6bd094b
3 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/android/vendor_hooks.c
View File

@@ -313,3 +313,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_alloc_rqs);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_rq_ctx_init);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mmap_region);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_try_to_unmap_one);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_shrink_node_memcgs);

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

@@ -19,6 +19,9 @@ DECLARE_HOOK(android_vh_page_referenced_check_bypass,
TP_PROTO(struct page *page, unsigned long nr_to_scan, int lru, bool *bypass),
TP_ARGS(page, nr_to_scan, lru, bypass));
DECLARE_HOOK(android_vh_shrink_node_memcgs,
TP_PROTO(struct mem_cgroup *memcg, bool *skip),
TP_ARGS(memcg, skip));
#endif /* _TRACE_HOOK_VMSCAN_H */
/* This part must be outside protection */
#include <trace/define_trace.h>

5
mm/vmscan.c
View File

@@ -5747,6 +5747,7 @@ static void shrink_node_memcgs(pg_data_t *pgdat, struct scan_control *sc)
struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat);
unsigned long reclaimed;
unsigned long scanned;
bool skip = false;
/*
* This loop can become CPU-bound when target memcgs
@@ -5756,6 +5757,10 @@ static void shrink_node_memcgs(pg_data_t *pgdat, struct scan_control *sc)
*/
cond_resched();
trace_android_vh_shrink_node_memcgs(memcg, &skip);
if (skip)
continue;
mem_cgroup_calculate_protection(target_memcg, memcg);
if (mem_cgroup_below_min(memcg)) {