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

[ Upstream commit 82cf4f132e ]

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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
Chao Yu 2018-07-27 18:15:14 +08:00 committed by Greg Kroah-Hartman
parent ca21de1510
commit d85e495702
1 changed files with 6 additions and 1 deletions
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7
fs/f2fs/f2fs.h
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@ -1766,8 +1766,13 @@ 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;