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ANDROID: mm: page_pinner: fix elapsed time

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Put the elapsed time instead of zero all the time.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: Ibb319e7dfce2d47481e2462bfb8423fbd2ddad66
This commit is contained in:
Minchan Kim
2022-04-18 12:13:26 -07:00
parent d5d9a23576
commit 609fa1be7a
1 changed files with 8 additions and 2 deletions
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10
mm/page_pinner.c
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@@ -275,6 +275,7 @@ void __page_pinner_put_page(struct page *page)
struct page_ext *page_ext = lookup_page_ext(page);
struct page_pinner *page_pinner;
struct captured_pinner record;
u64 now, ts_usec;
if (unlikely(!page_ext))
return;
@@ -284,8 +285,13 @@ void __page_pinner_put_page(struct page *page)
page_pinner = get_page_pinner(page_ext);
record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
record.elapsed = min_t(u64, 0, (u64)ktime_to_us(ktime_get_boottime()) -
page_pinner->ts_usec);
now = (u64)ktime_to_us(ktime_get_boottime());
ts_usec = page_pinner->ts_usec;
if (now > ts_usec)
record.elapsed = now - ts_usec;
else
record.elapsed = 0;
record.state = PP_PUT;
capture_page_state(page, &record);