>> This patch series changes remove_from_page_cache's page ref counting
>> rule. page cache ref count is decreased in remove_from_page_cache.
>> So we don't need call again in caller context.
>>
>> Cc: Nick Piggin <npiggin@suse.de>
>> Cc: Al Viro <viro@zeniv.linux.org.uk>
>> Cc:
linux-mm@kvack.org
>> Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
>> ---
>> mm/truncate.c | 1 -
>> 1 files changed, 0 insertions(+), 1 deletions(-)
>>
>> diff --git a/mm/truncate.c b/mm/truncate.c
>> index 9ee5673..8decb93 100644
>> --- a/mm/truncate.c
>> +++ b/mm/truncate.c
>> @@ -114,7 +114,6 @@ truncate_complete_page(struct address_space *mapping, struct page *page)
>> * calls cleancache_put_page (and note page->mapping is now NULL)
>> */
>> cleancache_flush_page(mapping, page);
>> - page_cache_release(page); /* pagecache ref */
>> return 0;
>
> Do we _always_ have stable page reference here? IOW, I can assume
