… > +++ b/fs/f2fs/f2fs.h … > +#ifdef CONFIG_F2FS_FS_COMPRESSION > +bool f2fs_is_compressed_page(struct page *page); … Can the following adjustment make sense? +bool f2fs_is_compressed_page(const struct page *page); Would you like to improve const-correctness at any more source code places? Regards, Markus