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ANDROID: vendor_hook: Add hook in wp_page_copy()

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android_vh_cow_user_page: when copy a page to a new page, set the
status that whether the new page should be reclaimed to a specified
swap location, according to the information of vm_fault.

Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Ie445c7b034ca176ec1e8fd1cd67c88581bf9ddf4
This commit is contained in:
Bing Han
2022-05-30 14:42:44 +08:00
committed by Treehugger Robot
parent e3f469befb
commit 9d4b553252
3 changed files with 6 additions and 0 deletions
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3
include/trace/hooks/mm.h
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@@ -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_cow_user_page,
TP_PROTO(struct vm_fault *vmf, struct page *page),
TP_ARGS(vmf, page));
DECLARE_HOOK(android_vh_page_isolated_for_reclaim,
TP_PROTO(struct mm_struct *mm, struct page *page),
TP_ARGS(mm, page));