From patchwork Tue Mar 9 19:57:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 397141 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C03E0C433E0 for ; Tue, 9 Mar 2021 19:59:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 987FE65229 for ; Tue, 9 Mar 2021 19:59:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231484AbhCIT64 (ORCPT ); Tue, 9 Mar 2021 14:58:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231366AbhCIT6a (ORCPT ); Tue, 9 Mar 2021 14:58:30 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 471E5C06174A; Tue, 9 Mar 2021 11:58:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=RGjaGTfkSxj6Autv9FlufontkwdJU9wp0hD2xAby0Vk=; b=HniCgkZiRZw/fimxF5B4BgBAnw daSqwlIyut8hHJqoP5oXZFUQ0MF/Mpy9+mFq0EuPBIR+of1znBQDFc1pQ9X5qyOONnyvOAOMKUMfh ADMLHqb5hK/03a4N8OVc9fzdooAaoBFcz+Dd/97IpzSblliTwSK8s7ZgcjIqvSUtp/n33rFfhRGMU rIWDE+uNIaOW8EWrjZNcwWCeHTFQ4lnIlhFdIwnAiVKq8IAUQHB3ZtKFXMJHpKqzQOQ1pMXcUlMcM CS4wbc2Wy6ddHkpRGka+4ECJxtj8WBGGM+YggeIEtpv9EiFp+t3p0iFK0xOqsT8IjnFwvrXordar/ b0YGk1NQ==; Received: from willy by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1lJiUG-001Bq5-D4; Tue, 09 Mar 2021 19:57:53 +0000 From: "Matthew Wilcox (Oracle)" To: Andrew Morton , linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-bcache@vger.kernel.org, linux-nvdimm@lists.01.org, linux-scsi@vger.kernel.org Subject: [PATCH v2] include: Remove pagemap.h from blkdev.h Date: Tue, 9 Mar 2021 19:57:47 +0000 Message-Id: <20210309195747.283796-1-willy@infradead.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org My UEK-derived config has 1030 files depending on pagemap.h before this change. Afterwards, just 326 files need to be rebuilt when I touch pagemap.h. I think blkdev.h is probably included too widely, but untangling that dependency is harder and this solves my problem. x86 allmodconfig builds, but there may be implicit include problems on other architectures. Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Christoph Hellwig Acked-by: Martin K. Petersen --- v2: Fix CONFIG_SWAP=n implicit use of pagemap.h by swap.h. Increases the number of files from 240, but that's still a big win -- 68% reduction instead of 77%. block/blk-settings.c | 1 + drivers/block/brd.c | 1 + drivers/block/loop.c | 1 + drivers/md/bcache/super.c | 1 + drivers/nvdimm/btt.c | 1 + drivers/nvdimm/pmem.c | 1 + drivers/scsi/scsicam.c | 1 + include/linux/blkdev.h | 1 - include/linux/swap.h | 1 + 9 files changed, 8 insertions(+), 1 deletion(-) diff --git a/block/blk-settings.c b/block/blk-settings.c index b4aa2f37fab6..976085a44fb8 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -7,6 +7,7 @@ #include #include #include +#include #include /* for max_pfn/max_low_pfn */ #include #include diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 18bf99906662..2a5a1933826b 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/block/loop.c b/drivers/block/loop.c index a370cde3ddd4..d58d68f3c7cd 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -53,6 +53,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 71691f32959b..f154c89d1326 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -16,6 +16,7 @@ #include "features.h" #include +#include #include #include #include diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c index 41aa1f01fc07..18a267d5073f 100644 --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index b8a85bfb2e95..16760b237229 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -8,6 +8,7 @@ */ #include +#include #include #include #include diff --git a/drivers/scsi/scsicam.c b/drivers/scsi/scsicam.c index f1553a453616..0ffdb8f2995f 100644 --- a/drivers/scsi/scsicam.c +++ b/drivers/scsi/scsicam.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index c032cfe133c7..1e2a95599390 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include diff --git a/include/linux/swap.h b/include/linux/swap.h index 4cc6ec3bf0ab..ae194bb7ddb4 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include