diff mbox series

[v6,02/19] mm: Ignore return value of ->readpages

Message ID 20200217184613.19668-3-willy@infradead.org (mailing list archive)
State New, archived
Headers show
Series Change readahead API | expand

Commit Message

Matthew Wilcox Feb. 17, 2020, 6:45 p.m. UTC 
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>

We used to assign the return value to a variable, which we then ignored.
Remove the pretence of caring.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 mm/readahead.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

Comments

Dave Chinner Feb. 18, 2020, 4:48 a.m. UTC | #1 
On Mon, Feb 17, 2020 at 10:45:43AM -0800, Matthew Wilcox wrote:
> From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
> 
> We used to assign the return value to a variable, which we then ignored.
> Remove the pretence of caring.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
>  mm/readahead.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)

Simple enough.

Reviewed-by: Dave Chinner <dchinner@redhat.com>
John Hubbard Feb. 18, 2020, 9:33 p.m. UTC | #2 
On 2/17/20 10:45 AM, Matthew Wilcox wrote:
> From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
> 
> We used to assign the return value to a variable, which we then ignored.
> Remove the pretence of caring.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
>  mm/readahead.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)

Looks good,

    Reviewed-by: John Hubbard <jhubbard@nvidia.com>

thanks,
diff mbox series

Patch

diff --git a/mm/readahead.c b/mm/readahead.c
index 8ce46d69e6ae..12d13b7792da 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -113,17 +113,16 @@  int read_cache_pages(struct address_space *mapping, struct list_head *pages,
 
 EXPORT_SYMBOL(read_cache_pages);
 
-static int read_pages(struct address_space *mapping, struct file *filp,
+static void read_pages(struct address_space *mapping, struct file *filp,
 		struct list_head *pages, unsigned int nr_pages, gfp_t gfp)
 {
 	struct blk_plug plug;
 	unsigned page_idx;
-	int ret;
 
 	blk_start_plug(&plug);
 
 	if (mapping->a_ops->readpages) {
-		ret = mapping->a_ops->readpages(filp, mapping, pages, nr_pages);
+		mapping->a_ops->readpages(filp, mapping, pages, nr_pages);
 		/* Clean up the remaining pages */
 		put_pages_list(pages);
 		goto out;
@@ -136,12 +135,9 @@  static int read_pages(struct address_space *mapping, struct file *filp,
 			mapping->a_ops->readpage(filp, page);
 		put_page(page);
 	}
-	ret = 0;
 
 out:
 	blk_finish_plug(&plug);
-
-	return ret;
 }
 
 /*