f2fs: fix a wrong condition in f2fs_skip_inode_update

Fix commit 97dd26ad (f2fs: fix wrong AUTO_RECOVER condition).
We should use ~PAGE_MASK to determine whether i_size is aligned to
the f2fs's block size or not.
Signed-off-by: NJunling Zheng <zhengjunling@huawei.com>
Reviewed-by: NChao Yu <yuchao0@huawei.com>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/f2fs.h

@@ -2471,7 +2471,7 @@ static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
 	}
 	if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
 			file_keep_isize(inode) ||
-			i_size_read(inode) & PAGE_MASK)
+			i_size_read(inode) & ~PAGE_MASK)
 		return false;
 
 	down_read(&F2FS_I(inode)->i_sem);