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ANDROID: mm: page_pinner: remove WARN_ON_ONCE

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There are several path the WARN_ON_ONCE could be triggered but
it doesn't mean real bug since we intentionally allow it to make
code simple at this moment. So just remove the warnings	to prevent
folks confused it.

Bug: 192475091
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I7d14c8490db841f61b01fe7c16b406c9b1850c46
This commit is contained in:
Minchan Kim
2021-07-07 13:19:32 -07:00
parent 9a453100fc
commit 849f048050
1 changed files with 0 additions and 3 deletions
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3
mm/page_pinner.c
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@@ -157,12 +157,9 @@ void __reset_page_pinner(struct page *page, unsigned int order, bool free)
page_pinner = get_page_pinner(page_ext); page_pinner = get_page_pinner(page_ext);
if (free) { if (free) {
WARN_ON_ONCE(atomic_read(&page_pinner->count));
atomic_set(&page_pinner->count, 0); atomic_set(&page_pinner->count, 0);
__clear_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags); __clear_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags);
} else { } else {
WARN_ON_ONCE(atomic_dec_if_positive(
&page_pinner->count) < 0);
check_longterm_pin(page_pinner, page); check_longterm_pin(page_pinner, page);
} }
clear_bit(PAGE_EXT_GET, &page_ext->flags); clear_bit(PAGE_EXT_GET, &page_ext->flags);