From owner-svn-src-head@freebsd.org Tue Aug 11 12:41:40 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id F250A3AD5A1; Tue, 11 Aug 2020 12:41:40 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BQssJ6DpMz4TJ7; Tue, 11 Aug 2020 12:41:40 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id B94921AF79; Tue, 11 Aug 2020 12:41:40 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 07BCfeYK064366; Tue, 11 Aug 2020 12:41:40 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 07BCfeC9064365; Tue, 11 Aug 2020 12:41:40 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <202008111241.07BCfeC9064365@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Tue, 11 Aug 2020 12:41:40 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r364110 - head/sys/compat/linuxkpi/common/include/linux X-SVN-Group: head X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: head/sys/compat/linuxkpi/common/include/linux X-SVN-Commit-Revision: 364110 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Aug 2020 12:41:41 -0000 Author: hselasky Date: Tue Aug 11 12:41:40 2020 New Revision: 364110 URL: https://svnweb.freebsd.org/changeset/base/364110 Log: Use atomic_clear_rel_long() to implement clear_bit_unlock() in the LinuxKPI after r363842. Suggested by: alc@ MFC after: 1 week Sponsored by: Mellanox Technologies Modified: head/sys/compat/linuxkpi/common/include/linux/bitops.h Modified: head/sys/compat/linuxkpi/common/include/linux/bitops.h ============================================================================== --- head/sys/compat/linuxkpi/common/include/linux/bitops.h Tue Aug 11 12:17:46 2020 (r364109) +++ head/sys/compat/linuxkpi/common/include/linux/bitops.h Tue Aug 11 12:41:40 2020 (r364110) @@ -272,15 +272,11 @@ find_next_zero_bit(const unsigned long *addr, unsigned #define clear_bit(i, a) \ atomic_clear_long(&((volatile unsigned long *)(a))[BIT_WORD(i)], BIT_MASK(i)) +#define clear_bit_unlock(i, a) \ + atomic_clear_rel_long(&((volatile unsigned long *)(a))[BIT_WORD(i)], BIT_MASK(i)) + #define test_bit(i, a) \ !!(READ_ONCE(((volatile const unsigned long *)(a))[BIT_WORD(i)]) & BIT_MASK(i)) - -static inline void -clear_bit_unlock(long bit, volatile unsigned long *var) -{ - clear_bit(bit, var); - wmb(); -} static inline int test_and_clear_bit(long bit, volatile unsigned long *var)