From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 CE63DC4CECE for ; Thu, 12 Mar 2020 15:20:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A447720674 for ; Thu, 12 Mar 2020 15:20:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Jx1EWhGu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727828AbgCLPUK (ORCPT ); Thu, 12 Mar 2020 11:20:10 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:38676 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727459AbgCLPUK (ORCPT ); Thu, 12 Mar 2020 11:20:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=NCEQUCe5Wa5475Lcg+ytHNQKS9TDeVw+NOmgA1JsCFU=; b=Jx1EWhGuI7KktdiPJYp631snYG bdVd/9SMaDIRvt8B/HtB+ytTHWUnnKJCr0mK1uZyl6k3z5nl2TZjTHiTinZBnvacBMz1/Vtdj5GtE rnXATkxUEUsGtGD4Ag8QXEIbn0cC32B/STTpI2+FfkrEq/HIdinxcmjI8v02KLQ3pmIvsnC2Rph05 Tp/JGwoGFAWDamMzyqpHXUF8fA+pnMigv3uGnBG56luc1pTnr4RD2o/cCzXx64Y5S7WQgWz+27T1Q 7buFmzvEm6KMWv9F/KAPkCK1YcHKUmWdeTPwavapVtLcyZjU6WlydF2+MNH4CHjmpawAa4vvspxLY h+ZTri7Q==; Received: from [2001:4bb8:184:5cad:8026:d98c:a056:3e33] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jCPd3-0007Ul-AD; Thu, 12 Mar 2020 15:20:09 +0000 From: Christoph Hellwig To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-raid@vger.kernel.org, linux-scsi@vger.kernel.org, linux-ext4@vger.kernel.org, reiserfs-devel@vger.kernel.org Subject: [PATCH 09/21] block: unexport read_dev_sector and put_dev_sector Date: Thu, 12 Mar 2020 16:19:27 +0100 Message-Id: <20200312151939.645254-10-hch@lst.de> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200312151939.645254-1-hch@lst.de> References: <20200312151939.645254-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org read_dev_sector and put_dev_sector are now only used by the partition parsing code. Remove the export for read_dev_sector and merge it into the only caller. Clean the mess up a bit by using goto labels and the SECTOR_SHIFT constant. Signed-off-by: Christoph Hellwig --- block/partition-generic.c | 31 +++++++++++++++++++------------ block/partitions/check.h | 14 +++++++------- include/linux/blkdev.h | 9 --------- 3 files changed, 26 insertions(+), 28 deletions(-) diff --git a/block/partition-generic.c b/block/partition-generic.c index a36ace0e2161..abab0109b69c 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -484,22 +484,29 @@ int blk_add_partitions(struct gendisk *disk, struct block_device *bdev) return ret; } -unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p) +void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p) { - struct address_space *mapping = bdev->bd_inode->i_mapping; + struct address_space *mapping = state->bdev->bd_inode->i_mapping; struct page *page; - page = read_mapping_page(mapping, (pgoff_t)(n >> (PAGE_SHIFT-9)), NULL); - if (!IS_ERR(page)) { - if (PageError(page)) - goto fail; - p->v = page; - return (unsigned char *)page_address(page) + ((n & ((1 << PAGE_SECTORS_SHIFT) - 1)) << 9); -fail: - put_page(page); + if (n >= get_capacity(state->bdev->bd_disk)) { + state->access_beyond_eod = true; + return NULL; } + + page = read_mapping_page(mapping, + (pgoff_t)(n >> PAGE_SECTORS_SHIFT), NULL); + if (IS_ERR(page)) + goto out; + if (PageError(page)) + goto out_put_page; + + p->v = page; + return (unsigned char *)page_address(page) + + ((n & ((1 << PAGE_SECTORS_SHIFT) - 1)) << SECTOR_SHIFT); +out_put_page: + put_page(page); +out: p->v = NULL; return NULL; } - -EXPORT_SYMBOL(read_dev_sector); diff --git a/block/partitions/check.h b/block/partitions/check.h index 6042f769471a..0fcf80117887 100644 --- a/block/partitions/check.h +++ b/block/partitions/check.h @@ -28,14 +28,14 @@ void free_partitions(struct parsed_partitions *state); struct parsed_partitions * check_partition(struct gendisk *, struct block_device *); -static inline void *read_part_sector(struct parsed_partitions *state, - sector_t n, Sector *p) +typedef struct { + struct page *v; +} Sector; + +void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p); +static inline void put_dev_sector(Sector p) { - if (n >= get_capacity(state->bdev->bd_disk)) { - state->access_beyond_eod = true; - return NULL; - } - return read_dev_sector(state->bdev, n, p); + put_page(p.v); } static inline void diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 8c2fe58db4fa..7852cf72edbf 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1488,15 +1488,6 @@ static inline unsigned int block_size(struct block_device *bdev) return bdev->bd_block_size; } -typedef struct {struct page *v;} Sector; - -unsigned char *read_dev_sector(struct block_device *, sector_t, Sector *); - -static inline void put_dev_sector(Sector p) -{ - put_page(p.v); -} - int kblockd_schedule_work(struct work_struct *work); int kblockd_mod_delayed_work_on(int cpu, struct delayed_work *dwork, unsigned long delay); -- 2.24.1