From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io0-f195.google.com ([209.85.223.195]:45890 "EHLO mail-io0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030215AbeEXQDF (ORCPT ); Thu, 24 May 2018 12:03:05 -0400 Received: by mail-io0-f195.google.com with SMTP id c9-v6so2890102iob.12 for ; Thu, 24 May 2018 09:03:05 -0700 (PDT) From: Jens Axboe To: linux-fsdevel@vger.kernel.org Cc: viro@zeniv.linux.org.uk, akpm@linux-foundation.org, Jens Axboe Subject: [PATCH 3/3] ext4: readpages() should submit IO as read-ahead Date: Thu, 24 May 2018 10:02:54 -0600 Message-Id: <1527177774-21414-4-git-send-email-axboe@kernel.dk> In-Reply-To: <1527177774-21414-1-git-send-email-axboe@kernel.dk> References: <1527177774-21414-1-git-send-email-axboe@kernel.dk> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: a_ops->readpages() is only ever used for read-ahead. Ensure that we pass this information down to the block layer. Signed-off-by: Jens Axboe --- fs/ext4/readpage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c index 9ffa6fad18db..92b28273b223 100644 --- a/fs/ext4/readpage.c +++ b/fs/ext4/readpage.c @@ -259,7 +259,7 @@ int ext4_mpage_readpages(struct address_space *mapping, bio->bi_iter.bi_sector = blocks[0] << (blkbits - 9); bio->bi_end_io = mpage_end_io; bio->bi_private = ctx; - bio_set_op_attrs(bio, REQ_OP_READ, 0); + bio_set_op_attrs(bio, REQ_OP_READ, REQ_RAHEAD); } length = first_hole << blkbits; -- 2.7.4