From patchwork Mon Feb 22 16:32:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 8379741 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id D7D2C9F1D4 for ; Mon, 22 Feb 2016 16:38:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F0290204FC for ; Mon, 22 Feb 2016 16:38:18 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EC455204EB for ; Mon, 22 Feb 2016 16:38:17 +0000 (UTC) Received: from localhost ([::1]:50072 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aXtV3-0005nQ-BK for patchwork-qemu-devel@patchwork.kernel.org; Mon, 22 Feb 2016 11:38:17 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57112) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aXtQN-0006la-TO for qemu-devel@nongnu.org; Mon, 22 Feb 2016 11:33:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aXtQM-0004k7-Ab for qemu-devel@nongnu.org; Mon, 22 Feb 2016 11:33:27 -0500 Received: from mx1.redhat.com ([209.132.183.28]:23023) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aXtQC-0004ec-8O; Mon, 22 Feb 2016 11:33:16 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id E45798E921; Mon, 22 Feb 2016 16:33:15 +0000 (UTC) Received: from noname.str.redhat.com. (dhcp-192-197.str.redhat.com [10.33.192.197]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u1MGWs1h024155; Mon, 22 Feb 2016 11:33:15 -0500 From: Kevin Wolf To: qemu-block@nongnu.org Date: Mon, 22 Feb 2016 17:32:37 +0100 Message-Id: <1456158772-9344-20-git-send-email-kwolf@redhat.com> In-Reply-To: <1456158772-9344-1-git-send-email-kwolf@redhat.com> References: <1456158772-9344-1-git-send-email-kwolf@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [Qemu-devel] [PULL 19/34] throttle: Merge all functions that check the configuration into one X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Alberto Garcia There's no need to keep throttle_conflicting(), throttle_is_valid() and throttle_max_is_missing_limit() as separate functions, so this patch merges all three into one. As a consequence, check_throttle_config() becomes redundant and can be replaced with throttle_is_valid(). Signed-off-by: Alberto Garcia Reviewed-by: Kevin Wolf Reviewed-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- blockdev.c | 21 ++------------------- include/qemu/throttle.h | 4 ---- tests/test-throttle.c | 18 +++++++++--------- util/throttle.c | 40 ++++++++-------------------------------- 4 files changed, 19 insertions(+), 64 deletions(-) diff --git a/blockdev.c b/blockdev.c index 11a3139..73babeb 100644 --- a/blockdev.c +++ b/blockdev.c @@ -343,23 +343,6 @@ static bool parse_stats_intervals(BlockAcctStats *stats, QList *intervals, return true; } -static bool check_throttle_config(ThrottleConfig *cfg, Error **errp) -{ - if (throttle_conflicting(cfg, errp)) { - return false; - } - - if (!throttle_is_valid(cfg, errp)) { - return false; - } - - if (throttle_max_is_missing_limit(cfg, errp)) { - return false; - } - - return true; -} - typedef enum { MEDIA_DISK, MEDIA_CDROM } DriveMediaType; /* All parameters but @opts are optional and may be set to NULL. */ @@ -434,7 +417,7 @@ static void extract_common_blockdev_options(QemuOpts *opts, int *bdrv_flags, throttle_cfg->op_size = qemu_opt_get_number(opts, "throttling.iops-size", 0); - if (!check_throttle_config(throttle_cfg, errp)) { + if (!throttle_is_valid(throttle_cfg, errp)) { return; } } @@ -2660,7 +2643,7 @@ void qmp_block_set_io_throttle(const char *device, int64_t bps, int64_t bps_rd, cfg.op_size = iops_size; } - if (!check_throttle_config(&cfg, errp)) { + if (!throttle_is_valid(&cfg, errp)) { goto out; } diff --git a/include/qemu/throttle.h b/include/qemu/throttle.h index ecae621..aec0785 100644 --- a/include/qemu/throttle.h +++ b/include/qemu/throttle.h @@ -106,12 +106,8 @@ bool throttle_timers_are_initialized(ThrottleTimers *tt); /* configuration */ bool throttle_enabled(ThrottleConfig *cfg); -bool throttle_conflicting(ThrottleConfig *cfg, Error **errp); - bool throttle_is_valid(ThrottleConfig *cfg, Error **errp); -bool throttle_max_is_missing_limit(ThrottleConfig *cfg, Error **errp); - void throttle_config(ThrottleState *ts, ThrottleTimers *tt, ThrottleConfig *cfg); diff --git a/tests/test-throttle.c b/tests/test-throttle.c index 3e208a8..a0c17ac 100644 --- a/tests/test-throttle.c +++ b/tests/test-throttle.c @@ -257,31 +257,31 @@ static void test_conflicts_for_one_set(bool is_max, int write) { memset(&cfg, 0, sizeof(cfg)); - g_assert(!throttle_conflicting(&cfg, NULL)); + g_assert(throttle_is_valid(&cfg, NULL)); set_cfg_value(is_max, total, 1); set_cfg_value(is_max, read, 1); - g_assert(throttle_conflicting(&cfg, NULL)); + g_assert(!throttle_is_valid(&cfg, NULL)); memset(&cfg, 0, sizeof(cfg)); set_cfg_value(is_max, total, 1); set_cfg_value(is_max, write, 1); - g_assert(throttle_conflicting(&cfg, NULL)); + g_assert(!throttle_is_valid(&cfg, NULL)); memset(&cfg, 0, sizeof(cfg)); set_cfg_value(is_max, total, 1); set_cfg_value(is_max, read, 1); set_cfg_value(is_max, write, 1); - g_assert(throttle_conflicting(&cfg, NULL)); + g_assert(!throttle_is_valid(&cfg, NULL)); memset(&cfg, 0, sizeof(cfg)); set_cfg_value(is_max, total, 1); - g_assert(!throttle_conflicting(&cfg, NULL)); + g_assert(throttle_is_valid(&cfg, NULL)); memset(&cfg, 0, sizeof(cfg)); set_cfg_value(is_max, read, 1); set_cfg_value(is_max, write, 1); - g_assert(!throttle_conflicting(&cfg, NULL)); + g_assert(throttle_is_valid(&cfg, NULL)); } static void test_conflicting_config(void) @@ -340,15 +340,15 @@ static void test_max_is_missing_limit(void) memset(&cfg, 0, sizeof(cfg)); cfg.buckets[i].max = 100; cfg.buckets[i].avg = 0; - g_assert(throttle_max_is_missing_limit(&cfg, NULL)); + g_assert(!throttle_is_valid(&cfg, NULL)); cfg.buckets[i].max = 0; cfg.buckets[i].avg = 0; - g_assert(!throttle_max_is_missing_limit(&cfg, NULL)); + g_assert(throttle_is_valid(&cfg, NULL)); cfg.buckets[i].max = 0; cfg.buckets[i].avg = 100; - g_assert(!throttle_max_is_missing_limit(&cfg, NULL)); + g_assert(throttle_is_valid(&cfg, NULL)); } } diff --git a/util/throttle.c b/util/throttle.c index 9046dd8..f8bf03c 100644 --- a/util/throttle.c +++ b/util/throttle.c @@ -248,14 +248,14 @@ bool throttle_enabled(ThrottleConfig *cfg) return false; } -/* return true if any two throttling parameters conflicts - * +/* check if a throttling configuration is valid * @cfg: the throttling configuration to inspect - * @ret: true if any conflict detected else false + * @ret: true if valid else false * @errp: error object */ -bool throttle_conflicting(ThrottleConfig *cfg, Error **errp) +bool throttle_is_valid(ThrottleConfig *cfg, Error **errp) { + int i; bool bps_flag, ops_flag; bool bps_max_flag, ops_max_flag; @@ -278,21 +278,9 @@ bool throttle_conflicting(ThrottleConfig *cfg, Error **errp) if (bps_flag || ops_flag || bps_max_flag || ops_max_flag) { error_setg(errp, "bps/iops/max total values and read/write values" " cannot be used at the same time"); - return true; + return false; } - return false; -} - -/* check if a throttling configuration is valid - * @cfg: the throttling configuration to inspect - * @ret: true if valid else false - * @errp: error object - */ -bool throttle_is_valid(ThrottleConfig *cfg, Error **errp) -{ - int i; - for (i = 0; i < BUCKETS_COUNT; i++) { if (cfg->buckets[i].avg < 0 || cfg->buckets[i].max < 0 || @@ -302,27 +290,15 @@ bool throttle_is_valid(ThrottleConfig *cfg, Error **errp) THROTTLE_VALUE_MAX); return false; } - } - - return true; -} -/* check if bps_max/iops_max is used without bps/iops - * @cfg: the throttling configuration to inspect - * @errp: error object - */ -bool throttle_max_is_missing_limit(ThrottleConfig *cfg, Error **errp) -{ - int i; - - for (i = 0; i < BUCKETS_COUNT; i++) { if (cfg->buckets[i].max && !cfg->buckets[i].avg) { error_setg(errp, "bps_max/iops_max require corresponding" " bps/iops values"); - return true; + return false; } } - return false; + + return true; } /* fix bucket parameters */