From: Matthew Wilcox <willy@infradead.org> To: Andrew Morton <akpm@linux-foundation.org> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, ocfs2-devel@oss.oracle.com, linux-xfs@vger.kernel.org, Christoph Hellwig <hch@lst.de>, Dave Chinner <dchinner@redhat.com>, John Hubbard <jhubbard@nvidia.com>, William Kucharski <william.kucharski@oracle.com> Subject: [PATCH v10 03/25] mm: Ignore return value of ->readpages Date: Mon, 23 Mar 2020 13:22:37 -0700 Message-ID: <20200323202259.13363-4-willy@infradead.org> (raw) In-Reply-To: <20200323202259.13363-1-willy@infradead.org> 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> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: William Kucharski <william.kucharski@oracle.com> --- mm/readahead.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 41a592886da7..61b15b6b9e72 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; } /* -- 2.25.1
next prev parent reply index Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-03-23 20:22 [PATCH v10 00/25] Change readahead API Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 01/25] mm: Move readahead prototypes from mm.h Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 02/25] mm: Return void from various readahead functions Matthew Wilcox 2020-03-23 20:22 ` Matthew Wilcox [this message] 2020-03-23 20:22 ` [PATCH v10 04/25] mm: Move readahead nr_pages check into read_pages Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 05/25] mm: Add new readahead_control API Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 06/25] mm: Use readahead_control to pass arguments Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 07/25] mm: Rename various 'offset' parameters to 'index' Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 08/25] mm: rename readahead loop variable to 'i' Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 09/25] mm: Remove 'page_offset' from readahead loop Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 10/25] mm: Put readahead pages in cache earlier Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 11/25] mm: Add readahead address space operation Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 12/25] mm: Move end_index check out of readahead loop Matthew Wilcox 2020-03-23 20:49 ` Eric Biggers 2020-03-24 8:40 ` Christoph Hellwig 2020-03-23 20:22 ` [PATCH v10 13/25] mm: Add page_cache_readahead_unbounded Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 14/25] mm: Document why we don't set PageReadahead Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 15/25] mm: Use memalloc_nofs_save in readahead path Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 16/25] fs: Convert mpage_readpages to mpage_readahead Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 17/25] btrfs: Convert from readpages to readahead Matthew Wilcox 2020-03-26 16:53 ` David Sterba 2020-03-23 20:22 ` [PATCH v10 18/25] erofs: Convert uncompressed files " Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 19/25] erofs: Convert compressed " Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 20/25] ext4: Convert " Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 21/25] ext4: Pass the inode to ext4_mpage_readpages Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 22/25] f2fs: Convert from readpages to readahead Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 23/25] f2fs: Pass the inode to f2fs_mpage_readpages Matthew Wilcox 2020-03-23 20:22 ` [PATCH v10 24/25] fuse: Convert from readpages to readahead Matthew Wilcox 2020-03-25 9:42 ` Miklos Szeredi 2020-03-25 12:02 ` Matthew Wilcox 2020-03-25 14:43 ` Miklos Szeredi 2020-03-25 15:32 ` Matthew Wilcox 2020-03-25 15:54 ` Miklos Szeredi 2020-03-23 20:22 ` [PATCH v10 25/25] iomap: " Matthew Wilcox
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