From owner-svn-src-vendor@freebsd.org Fri Apr 14 18:29:37 2017 Return-Path: Delivered-To: svn-src-vendor@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3C9B9D3E445; Fri, 14 Apr 2017 18:29:37 +0000 (UTC) (envelope-from avg@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 mx1.freebsd.org (Postfix) with ESMTPS id 0CB939BA; Fri, 14 Apr 2017 18:29:36 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v3EITags071219; Fri, 14 Apr 2017 18:29:36 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v3EITaZC071218; Fri, 14 Apr 2017 18:29:36 GMT (envelope-from avg@FreeBSD.org) Message-Id: <201704141829.v3EITaZC071218@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Fri, 14 Apr 2017 18:29:36 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org Subject: svn commit: r316921 - vendor-sys/illumos/dist/uts/common/fs/zfs X-SVN-Group: vendor-sys MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-vendor@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the vendor work area tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Apr 2017 18:29:37 -0000 Author: avg Date: Fri Apr 14 18:29:35 2017 New Revision: 316921 URL: https://svnweb.freebsd.org/changeset/base/316921 Log: 8027 tighten up dsl_pool_dirty_delta illumos/illumos-gate@313ae1e182df6e6a04b56c4b73ded33e11b75666 https://github.com/illumos/illumos-gate/commit/313ae1e182df6e6a04b56c4b73ded33e11b75666 https://www.illumos.org/issues/8027 dsl_pool_dirty_delta() should not wake up waiters when dp->dp_dirty_total == zfs_dirty_data_max, because they wait for dp_dirty_total to fall strictly below the threshold. It's probably very rare for that condition to occur, but it's better to have more accurate code. Reviewed by: Matt Ahrens Reviewed by: Serapheim Dimitropoulos Reviewed by: Paul Dagnelie Approved by: Dan McDonald Author: Andriy Gapon Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/dsl_pool.c Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/dsl_pool.c ============================================================================== --- vendor-sys/illumos/dist/uts/common/fs/zfs/dsl_pool.c Fri Apr 14 18:29:13 2017 (r316920) +++ vendor-sys/illumos/dist/uts/common/fs/zfs/dsl_pool.c Fri Apr 14 18:29:35 2017 (r316921) @@ -459,7 +459,7 @@ dsl_pool_dirty_delta(dsl_pool_t *dp, int * Note: we signal even when increasing dp_dirty_total. * This ensures forward progress -- each thread wakes the next waiter. */ - if (dp->dp_dirty_total <= zfs_dirty_data_max) + if (dp->dp_dirty_total < zfs_dirty_data_max) cv_signal(&dp->dp_spaceavail_cv); }