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ANDROID: vendor_hooks:vendor hook for __alloc_pages_slowpath.

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add vendor hook in __alloc_pages_slowpath ahead of
__alloc_pages_direct_reclaim and warn_alloc.

Bug: 243629905
Bug: 395197442
Change-Id: Ieacc6cf79823c0bfacfdeec9afb55ed66f40d0b0
Signed-off-by: xiaofeng <xiaofeng5@xiaomi.com>
Signed-off-by: huzhanyuan  <huzhanyuan@oppo.com>
Signed-off-by: wengle <wengle@oppo.com>
This commit is contained in:
xiaofeng
2022-08-24 19:34:06 +08:00
committed by Carlos Llamas
parent 2ad4928594
commit 203b0df23a
3 changed files with 21 additions and 0 deletions
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drivers/android/vendor_hooks.c
+2
View File
@@ -410,3 +410,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_vfs_fsync_range);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_do_fcntl);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_evict);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_vmscan_kswapd_done);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alloc_pages_reclaim_bypass);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alloc_pages_failure_bypass);
include/trace/hooks/mm.h
+8
View File
@@ -317,6 +317,14 @@ DECLARE_HOOK(android_vh_drain_all_pages_bypass,
int migratetype, unsigned long did_some_progress,
bool *bypass),
TP_ARGS(gfp_mask, order, alloc_flags, migratetype, did_some_progress, bypass));
DECLARE_HOOK(android_vh_alloc_pages_reclaim_bypass,
TP_PROTO(gfp_t gfp_mask, int order, int alloc_flags,
int migratetype, struct page **page),
TP_ARGS(gfp_mask, order, alloc_flags, migratetype, page));
DECLARE_HOOK(android_vh_alloc_pages_failure_bypass,
TP_PROTO(gfp_t gfp_mask, int order, int alloc_flags,
int migratetype, struct page **page),
TP_ARGS(gfp_mask, order, alloc_flags, migratetype, page));
#endif /* _TRACE_HOOK_MM_H */
/* This part must be outside protection */
mm/page_alloc.c
+11
View File
@@ -4690,6 +4690,12 @@ retry:
if (should_alloc_retry)
goto retry;
trace_android_vh_alloc_pages_reclaim_bypass(gfp_mask, order,
alloc_flags, ac->migratetype, &page);
if (page)
goto got_pg;
/* Try direct reclaim and then allocating */
page = __alloc_pages_direct_reclaim(gfp_mask, order, alloc_flags, ac,
&did_some_progress);
@@ -4794,6 +4800,11 @@ nopage:
goto retry;
}
fail:
trace_android_vh_alloc_pages_failure_bypass(gfp_mask, order,
alloc_flags, ac->migratetype, &page);
if (page)
goto got_pg;
warn_alloc(gfp_mask, ac->nodemask,
"page allocation failure: order:%u", order);
got_pg: