Commit 82cf4f13 authored Jul 27, 2018 by Chao Yu Committed by Jaegeuk Kim Aug 01, 2018

f2fs: fix to active page in lru list for read path



If config CONFIG_F2FS_FAULT_INJECTION is on, for both read or write path
we will call find_lock_page() to get the page, but for read path, it
missed to passing FGP_ACCESSED to allocator to active the page in LRU
list, result in being reclaimed in advance incorrectly, fix it.

Reported-by: Xianrong Zhou <zhouxianrong@huawei.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

parent 18767e62

fs/f2fs/f2fs.h

+6 −1

Original line number	Diff line number	Diff line
		@@ -1964,8 +1964,13 @@ static inline struct page f2fs_grab_cache_page(struct address_space mapping,
		pgoff_t index, bool for_write)
		{
		#ifdef CONFIG_F2FS_FAULT_INJECTION
		struct page *page = find_lock_page(mapping, index);
		struct page *page;

		if (!for_write)
		page = find_get_page_flags(mapping, index,
		FGP_LOCK \| FGP_ACCESSED);
		else
		page = find_lock_page(mapping, index);
		if (page)
		return page;