mpage: convert do_mpage_readpage() to return void type

The return value of do_mpage_readpage() is arg->bio, which is already set
in the arg structure.  Returning it again is redundant.

This patch changes the return type to void since the caller doesn't care
about the return value.

Link: https://lkml.kernel.org/r/20250829023659.688649-2-chizhiling@163.com
Signed-off-by: Chi Zhiling <chizhiling@kylinos.cn>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Sungjong Seo <sj1557.seo@samsung.com>
Cc: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/mpage.c b/fs/mpage.c
index e4c11831f23414a46a11d41979bb4278a8b245cf..7dae5afc2b9ee240dad298805f5370a3876ddf3e 100644 (file)
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -148,7 +148,7 @@ struct mpage_readpage_args {
  * represent the validity of its disk mapping and to decide when to do the next
  * get_block() call.
  */
-static struct bio *do_mpage_readpage(struct mpage_readpage_args *args)
+static void do_mpage_readpage(struct mpage_readpage_args *args)
 {
        struct folio *folio = args->folio;
        struct inode *inode = folio->mapping->host;
@@ -305,7 +305,7 @@ alloc_new:
        else
                args->last_block_in_bio = first_block + blocks_per_folio - 1;
 out:
-       return args->bio;
+       return;
 
 confused:
        if (args->bio)
@@ -368,7 +368,7 @@ void mpage_readahead(struct readahead_control *rac, get_block_t get_block)
                prefetchw(&folio->flags);
                args.folio = folio;
                args.nr_pages = readahead_count(rac);
-               args.bio = do_mpage_readpage(&args);
+               do_mpage_readpage(&args);
                /*
                 * If read ahead failed synchronously, it may cause by removed
                 * device, or some filesystem metadata error.
@@ -392,7 +392,7 @@ int mpage_read_folio(struct folio *folio, get_block_t get_block)
                .get_block = get_block,
        };
 
-       args.bio = do_mpage_readpage(&args);
+       do_mpage_readpage(&args);
        if (args.bio)
                mpage_bio_submit_read(args.bio);
        return 0;