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ANDROID: vendor_hook: Add hook to update nr_swap_pages and total_swap_pages

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The specified swap is regarded as reserved extended memory.
So nr_swap_pages and total_swap_pages should not be affected
by the specified swap.

Provide a vendor hook android_vh_account_swap_pages to replace
the updating process of nr_swap_pages and total_swap_pages.
When the page is swapped to the specified swap location,
nr_swap_pages and total_swap_pages should not be updated.

Bug: 234214858
Signed-off-by: Bing Han <bing.han@transsion.com>
Change-Id: Ib8dfb355d190399a037b9d9eda478a81c436e224
This commit is contained in:
Bing Han
2022-05-30 16:00:22 +08:00
committed by Treehugger Robot
parent 1aa26f0017
commit d2fea0ba9a
3 changed files with 26 additions and 7 deletions
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drivers/android/vendor_hooks.c
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@@ -419,3 +419,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_count_swpout_vm_event);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_page_isolated_for_reclaim);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_inactive_is_low);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_snapshot_refaults);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_account_swap_pages);