diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c index 8b1929a3a486..1021ca51ede6 100644 --- a/drivers/android/vendor_hooks.c +++ b/drivers/android/vendor_hooks.c @@ -496,6 +496,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_dma_buf_stats_teardown); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_madvise_cold_or_pageout_abort); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_compact_finished); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_wakeup_bypass); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_skip_swapcache); /* * For type visibility */ diff --git a/include/trace/hooks/mm.h b/include/trace/hooks/mm.h index dd980641cb27..4628e4aa1cc6 100644 --- a/include/trace/hooks/mm.h +++ b/include/trace/hooks/mm.h @@ -356,6 +356,9 @@ DECLARE_HOOK(android_vh_compact_finished, DECLARE_HOOK(android_vh_madvise_cold_or_pageout_abort, TP_PROTO(struct vm_area_struct *vma, bool *abort_madvise), TP_ARGS(vma, abort_madvise)); +DECLARE_HOOK(android_vh_skip_swapcache, + TP_PROTO(swp_entry_t entry, bool *skip), + TP_ARGS(entry, skip)); /* macro versions of hooks are no longer required */ #endif /* _TRACE_HOOK_MM_H */ diff --git a/mm/memory.c b/mm/memory.c index df62ea2ef8f2..857cfc90893f 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3663,8 +3663,10 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) if (!page) { struct swap_info_struct *si = swp_swap_info(entry); + bool skip_swapcache = false; - if (data_race(si->flags & SWP_SYNCHRONOUS_IO) && + trace_android_vh_skip_swapcache(entry, &skip_swapcache); + if ((data_race(si->flags & SWP_SYNCHRONOUS_IO) || skip_swapcache) && __swap_count(entry) == 1) { /* skip swapcache */ gfp_t flags = GFP_HIGHUSER_MOVABLE;