android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ANDROID: vendor_hook: Add hook in handle_pte_fault()

Browse Source 
android_vh_handle_pte_fault_end: after handle_pte_fault, update
the information that whether this page need to be reclaimed to
a swap location.

Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: I0ceb02422fc858ed96fbb47e220bf96bdc8fa68c
This commit is contained in:
Bing Han 2022-06-28 14:07:25 +08:00 committed by Treehugger Robot
parent 50148ce249
commit f7c932399e
3 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/android/vendor_hooks.c
View File

@ -407,6 +407,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_handle_tlb_conf);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_shrink_node_memcgs);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ra_tuning_max_page);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_tune_memcg_scan_type);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_handle_pte_fault_end);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cow_user_page);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_swapin_add_anon_rmap);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_page_isolated_for_reclaim);

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

@ -149,6 +149,9 @@ DECLARE_HOOK(android_vh_subpage_dma_contig_alloc,
DECLARE_HOOK(android_vh_ra_tuning_max_page,
TP_PROTO(struct readahead_control *ractl, unsigned long *max_page),
TP_ARGS(ractl, max_page));
DECLARE_HOOK(android_vh_handle_pte_fault_end,
TP_PROTO(struct vm_fault *vmf, unsigned long highest_memmap_pfn),
TP_ARGS(vmf, highest_memmap_pfn));
DECLARE_HOOK(android_vh_cow_user_page,
TP_PROTO(struct vm_fault *vmf, struct page *page),
TP_ARGS(vmf, page));

1
mm/memory.c
View File

@ -4763,6 +4763,7 @@ static vm_fault_t handle_pte_fault(struct vm_fault *vmf)
if (vmf->flags & FAULT_FLAG_WRITE)
flush_tlb_fix_spurious_fault(vmf->vma, vmf->address);
}
trace_android_vh_handle_pte_fault_end(vmf, highest_memmap_pfn);
unlock:
pte_unmap_unlock(vmf->pte, vmf->ptl);
return ret;