Re: [PATCH v9 22/25] f2fs: Convert from readpages to readahead

Eric Biggers
2020-03-20T18:51:37Z

On Fri, Mar 20, 2020 at 07:22:28AM -0700, Matthew Wilcox wrote:
> From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
>
> Use the new readahead operation in f2fs
>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> Reviewed-by: William Kucharski <william.kucharski@oracle.com>
> ---
> fs/f2fs/data.c | 47 +++++++++++++++----------------------
> include/trace/events/f2fs.h | 6 ++---
> 2 files changed, 22 insertions(+), 31 deletions(-)
>

Reviewed-by: Eric Biggers <ebiggers@google.com>

> @@ -2210,7 +2204,7 @@ static int f2fs_mpage_readpages(struct address_space *mapping,
> ret = f2fs_read_multi_pages(&cc, &bio,
> max_nr_pages,
> &last_block_in_bio,
> - is_readahead);
> + rac);

IMO it would be clearer to write 'rac != NULL' here (and below) since the
argument is actually a bool, but this works too.

- Eric