From patchwork Mon Feb 10 06:55:42 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kazuhiro Hayashi X-Patchwork-Id: 864013 Received: from mo-csw.securemx.jp (mo-csw1122.securemx.jp [210.130.202.158]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 985C01ADC79; Mon, 10 Feb 2025 06:56:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.130.202.158 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739170612; cv=none; b=Pbu/aBi9e5vCr3osy+ljKcgkzfSGMS+BEs6SKOxYh8AKIlez2RXOBlD5yHPMobQp6zJTzpFQmAPS4eaAUIcblpbie/L0vYtfxSIrFdFDKDsIaT3kK5hK48PP+io1/i5acQWZ/1IkcYqNRDK69/nWW8VDEUyMuRCL9729kjdCm0U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739170612; c=relaxed/simple; bh=oPbhdi6X+NHmZoY+32TmyHl/HKc+x2mok1HvpyiYhAw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=HRCJcrdoNL7UOaX5h0eRkvzH2UgIXeVXNVWmdOOYtCyMG1qj2BUOfUbqKADdWZbj+Xv7bXRLOyZbA+Hy0xnRdmZCmTJh5UQfc5uPhg9qRZ09gfcKylkzOQBt2RsmvEttbbT9y9DpagtVJOIEwBd2Cvk0Ba+34erOocaw1U0n7IA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=toshiba.co.jp; spf=pass smtp.mailfrom=toshiba.co.jp; dkim=pass (2048-bit key) header.d=toshiba.co.jp header.i=kazuhiro3.hayashi@toshiba.co.jp header.b=bSzuvNKV; arc=none smtp.client-ip=210.130.202.158 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=toshiba.co.jp Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=toshiba.co.jp Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=toshiba.co.jp header.i=kazuhiro3.hayashi@toshiba.co.jp header.b="bSzuvNKV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=toshiba.co.jp; h=From:To:Cc :Subject:Date:Message-Id:In-Reply-To:References;i= kazuhiro3.hayashi@toshiba.co.jp; s=key2.smx; t=1739170576; x=1740380176; bh=oPbhd i6X+NHmZoY+32TmyHl/HKc+x2mok1HvpyiYhAw=; b=bSzuvNKVpX/9glXGFuZlm9UjDKHJTsUZm45 XTfziGG7DzsMQ1QkYSjkSittyqoSxVE8iBraY0hPHfpyJ2W8k8ovYEx6GWz9xJHhl7lsnauTvsp7Y APC3lfhUIYPOVQgBsB8P18cHiQzs4FwxPw9m2gA5uAxXOstugM59eAvxIzjvTbGQl4bFo0ag8aHIh jWOj9PCsy7pzGRg0gFEnz+nUIy/pnt44kLsz/nxbr04l1z5bPmFomMx036s2ODMU99JFqDcsDD6x7 B+FdINI5uCkLCuyS0Kq+kKAWjwNfbiI2OFARra78tISlAeJb+90Gp/VTjtVJfUkdhS9y8cjujIzQ= =; Received: by mo-csw.securemx.jp (mx-mo-csw1122) id 51A6uGJ3605581; Mon, 10 Feb 2025 15:56:16 +0900 X-Iguazu-Qid: 2rWhWAeBjX3UcsnPV6 X-Iguazu-QSIG: v=2; s=0; t=1739170570; q=2rWhWAeBjX3UcsnPV6; m=PEpGbHJPdTb+kyLSpGQ0l6qlUAcFXU+N+Hi+UfiPIQo= Received: from imx12-a.toshiba.co.jp ([38.106.60.135]) by relay.securemx.jp (mx-mr1121) id 51A6u73v4035346 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 10 Feb 2025 15:56:08 +0900 From: Kazuhiro Hayashi To: linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, cip-dev@lists.cip-project.org Cc: bigeasy@linutronix.de, tglx@linutronix.de, rostedt@goodmis.org, linux-rt-users@vger.kernel.org, pavel@denx.de Subject: [PATCH 4.4 v1 14/17] mm/vmscan: Adjust system_state checks Date: Mon, 10 Feb 2025 15:55:42 +0900 X-TSB-HOP2: ON Message-Id: <1739170545-25011-15-git-send-email-kazuhiro3.hayashi@toshiba.co.jp> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1739170545-25011-1-git-send-email-kazuhiro3.hayashi@toshiba.co.jp> References: <1739170545-25011-1-git-send-email-kazuhiro3.hayashi@toshiba.co.jp> Precedence: bulk X-Mailing-List: linux-rt-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: From: Thomas Gleixner commit c6202adf3a0969514299cf10ff07376a84ad09bb upstream. To enable smp_processor_id() and might_sleep() debug checks earlier, it's required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING. Adjust the system_state check in kswapd_run() to handle the extra states. Tested-by: Mark Rutland Signed-off-by: Thomas Gleixner Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Steven Rostedt (VMware) Acked-by: Vlastimil Babka Cc: Andrew Morton Cc: Greg Kroah-Hartman Cc: Johannes Weiner Cc: Linus Torvalds Cc: Mel Gorman Cc: Michal Hocko Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20170516184736.119158930@linutronix.de Signed-off-by: Ingo Molnar Signed-off-by: Kazuhiro Hayashi --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 76853088f66b..9cd702320375 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -3620,7 +3620,7 @@ int kswapd_run(int nid) pgdat->kswapd = kthread_run(kswapd, pgdat, "kswapd%d", nid); if (IS_ERR(pgdat->kswapd)) { /* failure at boot is fatal */ - BUG_ON(system_state == SYSTEM_BOOTING); + BUG_ON(system_state < SYSTEM_RUNNING); pr_err("Failed to start kswapd on node %d\n", nid); ret = PTR_ERR(pgdat->kswapd); pgdat->kswapd = NULL;