From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8E63B22B8B6; Sun, 9 Nov 2025 18:31:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762713081; cv=none; b=gdcK3Fr155+ssxFgpD1gYvl5wKnuNta+cTRppM/Yp7/bIZzsv8wfMQnXhLmxP4aLKWIFaoIqOlcCjk10UnInSQsPbFuSMPLI07kmtetgQUAdi2dGYSay0UECTK2w1p/2OmzIqmMYJvSZ05e8mdxaNocn9NAo8tSSeodR/ryNORc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762713081; c=relaxed/simple; bh=5pzWYyqm8Lut7XSsYyAWLNrQ3DwaxeHay2IjnQOVGvE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Q83PQ6ePaSYcDDwya6BO3jv4mMxanC7ChSs0pnYj93BKvuW9F6mX62iN7oCk593OPVLJGskzZCF+U9TbRkWNAKtTqfLI5qy6nJKpnXbp0VQTGHK5dUwve/932bwGXG+11aB74GKNObJOPjAdyw0/Wo7Q7OgZowsL1Z2QuCMBFUo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RW7CjuXu; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RW7CjuXu" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51ADEC16AAE; Sun, 9 Nov 2025 18:31:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762713081; bh=5pzWYyqm8Lut7XSsYyAWLNrQ3DwaxeHay2IjnQOVGvE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RW7CjuXuQLiBX9DYqzDuhhBMKAybvys8C7nD+pfSjLr8UbYLzN1h4G/UvvjJgy8aW fwDhhJ8XxnMs99Q573rHN3Q2CtGOpsDDZ1SLBFnRmzqsMwOeYpG7a+gbuiIARfWwjz FurZhsfLZxX2rsa9jqDpbBUaWMaBYcPKDSpMUQB5IvcR1sRXWlWjxfziR6YU5vD/vs xGbrlYOA0L8bjLFtiKV6un8AGPPcdRpVfuhYq4CpzFSu20UbtKFv7AZJzDxbNbHQXX /38eJRg7xVbowhRwiWoMm+U3hlc/CMdhXXsLbrVOMvGMrV6JTEZNYfwstU1sNlebbp lQBKZzz6ZNtEA== From: Tejun Heo To: David Vernet , Andrea Righi , Changwoo Min Cc: Dan Schatzberg , Emil Tsalapatis , sched-ext@lists.linux.dev, linux-kernel@vger.kernel.org, Tejun Heo Subject: [PATCH 07/13] sched_ext: Make scx_exit() and scx_vexit() return bool Date: Sun, 9 Nov 2025 08:31:06 -1000 Message-ID: <20251109183112.2412147-8-tj@kernel.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251109183112.2412147-1-tj@kernel.org> References: <20251109183112.2412147-1-tj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Make scx_exit() and scx_vexit() return bool indicating whether the calling thread successfully claimed the exit. This will be used by the abort mechanism added in a later patch. Cc: Dan Schatzberg Cc: Emil Tsalapatis Signed-off-by: Tejun Heo --- kernel/sched/ext.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index afa89ca3659e..033c8b8e88e8 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -177,18 +177,21 @@ MODULE_PARM_DESC(slice_bypass_us, "bypass slice in microseconds, applied on [un] static void process_ddsp_deferred_locals(struct rq *rq); static u32 reenq_local(struct rq *rq); static void scx_kick_cpu(struct scx_sched *sch, s32 cpu, u64 flags); -static void scx_vexit(struct scx_sched *sch, enum scx_exit_kind kind, +static bool scx_vexit(struct scx_sched *sch, enum scx_exit_kind kind, s64 exit_code, const char *fmt, va_list args); -static __printf(4, 5) void scx_exit(struct scx_sched *sch, +static __printf(4, 5) bool scx_exit(struct scx_sched *sch, enum scx_exit_kind kind, s64 exit_code, const char *fmt, ...) { va_list args; + bool ret; va_start(args, fmt); - scx_vexit(sch, kind, exit_code, fmt, args); + ret = scx_vexit(sch, kind, exit_code, fmt, args); va_end(args); + + return ret; } #define scx_error(sch, fmt, args...) scx_exit((sch), SCX_EXIT_ERROR, 0, fmt, ##args) @@ -4399,14 +4402,14 @@ static void scx_error_irq_workfn(struct irq_work *irq_work) kthread_queue_work(sch->helper, &sch->disable_work); } -static void scx_vexit(struct scx_sched *sch, +static bool scx_vexit(struct scx_sched *sch, enum scx_exit_kind kind, s64 exit_code, const char *fmt, va_list args) { struct scx_exit_info *ei = sch->exit_info; if (!scx_claim_exit(sch, kind)) - return; + return false; ei->exit_code = exit_code; #ifdef CONFIG_STACKTRACE @@ -4423,6 +4426,7 @@ static void scx_vexit(struct scx_sched *sch, ei->reason = scx_exit_reason(ei->kind); irq_work_queue(&sch->error_irq_work); + return true; } static int alloc_kick_syncs(void) -- 2.51.1