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 4E215261B8D; Tue, 11 Nov 2025 19:18:24 +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=1762888704; cv=none; b=jgVVan19AmbZG+yg51t5IbvOrQuHJk45pupzTI1Cx6VpS2xKZa65yVI1SdGv37jMQRA1q9snE/kVb1/PHiyS5Xha+WUqirVfn6tvFZ0aKpzGUDkoD6D+z8PE4ulrZYAA9aqijw17EVNf3N7RRNVn5xyCCHHttF2OpzH58unWuc0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762888704; c=relaxed/simple; bh=vcvYchVdgxL+DU/MXUX3PAFZjptbDISFJLnpHeS1VDg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oiHEk36s3BSz9dqTTi91uJrcLvYq+RuFRxGwNovNMvI4Vn3jl7ZZhBjtjIHCjiOJPMlV9istZ1Y3kkB3W9fdLO9vAIZ2nhm+dGyhmmmz1rF0cL5EwFEj3H5F6ZSDqEBh9WBdMKtmkP2vKJEtIGhSEiWZsqXyhymqDdr5vHclPC4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=COOF52aE; 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="COOF52aE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E35ACC16AAE; Tue, 11 Nov 2025 19:18:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762888704; bh=vcvYchVdgxL+DU/MXUX3PAFZjptbDISFJLnpHeS1VDg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=COOF52aEXD0UNBnjLdx/oA3bBCTFYX4RYdVStDjbwAhdE2SbIXW34hAC/2JYesEwU MgX4G5mcUP4rjoJfmSzuX5vI5OODI1+QS5PLOQc3Zqq8Sbg7CSZdZE5Zzv2JjJjb9O cbUUAZ6jH71ANdNiJgAajbX5a8bBRg3/4sEIMWuBWlbyuPvXJSZFm/ed9SIsvurO5Q iPvsQca8c/KV8GkcB4f8eKrppc0eYg0FQuySPZ+FzAUz9R4akts1ut+kjKuTndgAof axkskKVLD9aIADWzxKQW8JfVgy7VwO0yQVrTsVV5c86VGZHBO8ovnBJzp0ZIZVznxS nr1PpUs3QMLdg== 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 , Andrea Righi Subject: [PATCH 06/13] sched_ext: Make scx_exit() and scx_vexit() return bool Date: Tue, 11 Nov 2025 09:18:09 -1000 Message-ID: <20251111191816.862797-7-tj@kernel.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251111191816.862797-1-tj@kernel.org> References: <20251111191816.862797-1-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. Reviewed-by: Dan Schatzberg Reviewed-by: Andrea Righi 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 56a6d453543a..e6e69a7fe105 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -174,18 +174,21 @@ 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) @@ -4400,14 +4403,14 @@ 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 @@ -4424,6 +4427,7 @@ 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) -- 2.51.2