From patchwork Tue Jun 8 16:05:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12307467 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 E56ACC48BE6 for ; Tue, 8 Jun 2021 16:07:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CBB3D610A2 for ; Tue, 8 Jun 2021 16:07:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233663AbhFHQJ3 (ORCPT ); Tue, 8 Jun 2021 12:09:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232541AbhFHQIp (ORCPT ); Tue, 8 Jun 2021 12:08:45 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 670F7C061789; Tue, 8 Jun 2021 09:06:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=C48nWYMntBNCb294th9G4NnV3ael3h9v9Uxu/7DKsAQ=; b=Txr96xyI42l6bWgyhy/NfFLZ7p wI6xYLpds+hPhxaTrtgNxZnsiJneyFLimCdskXsnDubCkPriAk27NWsJax9LORtsrDWA2C3GA/6xN 602wRe7RkZl1rmEzH+1/GncJAEJdfVch+jWMYDYmFMLh1ZGElSIhVT05QXchMevqH55gtDpet5Eez 5bhhZtmLhLjFJt41xezRVJSCSlZDzbfRO3vmIyigiuRspPpiyPum814CZmYg1wFQdl8OGjwNlZB36 YrsO9Ox/qF+JmneH2jgu1KoL2bAn/rnXh8B2EVk5sfns8NtGDYfL80iuCGjM/E/MPfGxkZGekLkLW evxV+uGg==; Received: from [2001:4bb8:192:ff5f:74ed:7c4f:a5ee:8dcb] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqeFU-009Rhp-30; Tue, 08 Jun 2021 16:06:40 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Thomas Bogendoerfer , Geoff Levand , Ilya Dryomov , Dongsheng Yang , Mike Snitzer , Ira Weiny , dm-devel@redhat.com, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org Subject: [PATCH 10/16] block: remove bvec_kmap_irq and bvec_kunmap_irq Date: Tue, 8 Jun 2021 18:05:57 +0200 Message-Id: <20210608160603.1535935-11-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210608160603.1535935-1-hch@lst.de> References: <20210608160603.1535935-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org These two helpers are entirely unused now. Signed-off-by: Christoph Hellwig --- include/linux/bio.h | 42 ------------------------------------------ 1 file changed, 42 deletions(-) diff --git a/include/linux/bio.h b/include/linux/bio.h index a0b4cfdf62a4..169b14b10c16 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -5,7 +5,6 @@ #ifndef __LINUX_BIO_H #define __LINUX_BIO_H -#include #include #include /* struct bio, bio_vec and BIO_* flags are defined in blk_types.h */ @@ -523,47 +522,6 @@ static inline void bio_clone_blkg_association(struct bio *dst, struct bio *src) { } #endif /* CONFIG_BLK_CGROUP */ -#ifdef CONFIG_HIGHMEM -/* - * remember never ever reenable interrupts between a bvec_kmap_irq and - * bvec_kunmap_irq! - */ -static inline char *bvec_kmap_irq(struct bio_vec *bvec, unsigned long *flags) -{ - unsigned long addr; - - /* - * might not be a highmem page, but the preempt/irq count - * balancing is a lot nicer this way - */ - local_irq_save(*flags); - addr = (unsigned long) kmap_atomic(bvec->bv_page); - - BUG_ON(addr & ~PAGE_MASK); - - return (char *) addr + bvec->bv_offset; -} - -static inline void bvec_kunmap_irq(char *buffer, unsigned long *flags) -{ - unsigned long ptr = (unsigned long) buffer & PAGE_MASK; - - kunmap_atomic((void *) ptr); - local_irq_restore(*flags); -} - -#else -static inline char *bvec_kmap_irq(struct bio_vec *bvec, unsigned long *flags) -{ - return page_address(bvec->bv_page) + bvec->bv_offset; -} - -static inline void bvec_kunmap_irq(char *buffer, unsigned long *flags) -{ - *flags = 0; -} -#endif - /* * BIO list management for use by remapping drivers (e.g. DM or MD) and loop. *