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ANDROID: mm: add kswapd wake/done rvh

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These restricted hooks are needed for cases when vendor implementation
needs to call sleeping functions. See the bug for details.

Bug: 379922825
Change-Id: I0e5626bed930830caf7f96a5b051b3174f4cf250
Signed-off-by: Dmitry Skiba <dskiba@google.com>
This commit is contained in:
Dmitry Skiba
2025-01-11 01:55:03 +00:00
parent 770852bf7d
commit 6f0b82dd8a
3 changed files with 13 additions and 0 deletions
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2
drivers/android/vendor_hooks.c
View File

@@ -383,6 +383,8 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_compaction_try_to_compact_pages_exit);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_alloc_pages_direct_reclaim_enter);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_alloc_pages_direct_reclaim_exit);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_alloc_pages_may_oom_exit);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_vmscan_kswapd_wake);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_vmscan_kswapd_done);
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);

7
include/trace/hooks/vmscan.h
View File

@@ -53,6 +53,13 @@ DECLARE_HOOK(android_vh_vmscan_kswapd_done,
TP_PROTO(int node_id, unsigned int highest_zoneidx, unsigned int alloc_order,
unsigned int reclaim_order),
TP_ARGS(node_id, highest_zoneidx, alloc_order, reclaim_order));
DECLARE_RESTRICTED_HOOK(android_rvh_vmscan_kswapd_wake,
TP_PROTO(int node_id, unsigned int highest_zoneidx, unsigned int alloc_order),
TP_ARGS(node_id, highest_zoneidx, alloc_order), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_vmscan_kswapd_done,
TP_PROTO(int node_id, unsigned int highest_zoneidx, unsigned int alloc_order,
unsigned int reclaim_order),
TP_ARGS(node_id, highest_zoneidx, alloc_order, reclaim_order), 1);
DECLARE_HOOK(android_vh_handle_trylock_failed_folio,
TP_PROTO(struct list_head *folio_list),
TP_ARGS(folio_list));

4
mm/vmscan.c
View File

@@ -7874,8 +7874,12 @@ kswapd_try_sleep:
*/
trace_mm_vmscan_kswapd_wake(pgdat->node_id, highest_zoneidx,
alloc_order);
trace_android_rvh_vmscan_kswapd_wake(pgdat->node_id, highest_zoneidx,
alloc_order);
reclaim_order = balance_pgdat(pgdat, alloc_order,
highest_zoneidx);
trace_android_rvh_vmscan_kswapd_done(pgdat->node_id, highest_zoneidx,
alloc_order, reclaim_order);
trace_android_vh_vmscan_kswapd_done(pgdat->node_id, highest_zoneidx,
alloc_order, reclaim_order);
if (reclaim_order < alloc_order)