From nobody Wed Dec 24 12:22:03 2025 Received: from mail-pl1-f176.google.com (mail-pl1-f176.google.com [209.85.214.176]) (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 B7399AD27 for ; Fri, 26 Jan 2024 03:26:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.176 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706239580; cv=none; b=hSWLMIcXhbCRjQu1/+CJWykfA2EsAJZaJQL3azsvS2yaH9ENw80tgrLnmSX3TupN7DRX4FPqPiNihqRB8/EwtSK4jSh38WSMQ4ZY6b2+Uz8noKJlhInSuzI8j8MlrOYfaGBlcFWP57baO2IgkohUazg1U4hEG8HkFJ6lvWskJaU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706239580; c=relaxed/simple; bh=tW4Nm4V9d5kZXh08ibLVf2N825lFsc+pZupZK2MIKW0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nkocuIw49aXBp/mQEHAADsG1n0KqHWb53lJA4omyGK7RxjBcqPnDW8d+lfjbDe8PGdyr9O16WsOigAPhbY7yi+ZY+qMbhe7XdCD6WzRwqRF/bfN6bYjozK4DviWuWvUnxhU9wHq/1lDS7wg4SY4nXUnPfkNmF2E1IIMmtgScbKI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=Fx4W/qtB; arc=none smtp.client-ip=209.85.214.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="Fx4W/qtB" Received: by mail-pl1-f176.google.com with SMTP id d9443c01a7336-1d75ea3a9b6so42150515ad.2 for ; Thu, 25 Jan 2024 19:26:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1706239578; x=1706844378; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=3jyTAA0Yise+07ysJFEZh9UL4F2WjZvgNafE+3erLkY=; b=Fx4W/qtBLEqDSYre+z/VU5Hr+gxYUXDVLAtM7qyr22jetDWO9W54Z6hExcvwCF2L5S xckI5mBYYpGv8WVmF76kj9MEfAKIu/ZpZTYB5fqdDitW5bqImm11QypqQ1+brVy0NIyN 58i5ymjXvPYReICc7zzRHLoyioC91MpG5LNks= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706239578; x=1706844378; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=3jyTAA0Yise+07ysJFEZh9UL4F2WjZvgNafE+3erLkY=; b=N00c7D4DbJloErgGf1kQjbUhnY3lpPxcCbhsYTP+k6Z5eHw0edgqCZvZbQ+nf/YcWu MpBnefqEJyRgp8AeePmkV6A1GlYTV+plRrq4c59phc9DQyEU/9/4XBEER+/DYyHF/Rk3 jRofzQAX/PicJjlLvVRCR8QRubiydmWZeTW1MSllSNtBKsI36X0sBoYLft8dbSBkKMMP MSxh+y2pfad29QYJtXBZELz5P59n+u5ZwrnpLnNcZFt5KvgMFJcWAFuFBc8JvJsab1aU 7rBuoNTTGHAS8VfBmmWPB/pRcXmHQHDs2YnwyheE67P6Cu34fOEEDNHsWWuZWSC1UFEq +wLw== X-Gm-Message-State: AOJu0YwUBjoa7dz8LlIzkYHf+AOT4nf80yDOTiuKKMkLJObmBRAPLHIX QawjgINMIqNPFA4EHhejrAb4fhwtp8YYLnENpBYDBpJdNeKLAMdSvXd85dCuFUeRbMhvHuIrTCU = X-Google-Smtp-Source: AGHT+IGS1o6SNKbTQYJU+qYLOMbAf0ANP7+Yayqquxbg3aPg8iboXRe+7m+NQiLxPk7hXuxwZ0TJUQ== X-Received: by 2002:a17:903:2592:b0:1d7:204a:f7fe with SMTP id jb18-20020a170903259200b001d7204af7femr683927plb.61.1706239578064; Thu, 25 Jan 2024 19:26:18 -0800 (PST) Received: from tigerii.tok.corp.google.com ([2401:fa00:8f:203:c4a9:6453:1d67:60e8]) by smtp.gmail.com with ESMTPSA id jh19-20020a170903329300b001d7724c24besm219266plb.9.2024.01.25.19.26.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Jan 2024 19:26:17 -0800 (PST) From: Sergey Senozhatsky To: Andrew Morton Cc: Jiexun Wang , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Sergey Senozhatsky Subject: [PATCH] mm/madvise: don't forget to leave lazy MMU mode in madvise_cold_or_pageout_pte_range() Date: Fri, 26 Jan 2024 12:25:48 +0900 Message-ID: <20240126032608.355899-1-senozhatsky@chromium.org> X-Mailer: git-send-email 2.43.0.429.g432eaa2c6b-goog In-Reply-To: <20230921174101.8e6271422a857af5414ce0a0@linux-foundation.org> References: <20230921174101.8e6271422a857af5414ce0a0@linux-foundation.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" We need to leave lazy MMU mode before unlocking. Fixes: b2f557a21bc8 ("mm/madvise: add cond_resched() in madvise_cold_or_pag= eout_pte_range()") Signed-off-by: Sergey Senozhatsky --- mm/madvise.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/madvise.c b/mm/madvise.c index 0f222d464254..127f0c7b69ac 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -451,6 +451,7 @@ static int madvise_cold_or_pageout_pte_range(pmd_t *pmd, if (++batch_count =3D=3D SWAP_CLUSTER_MAX) { batch_count =3D 0; if (need_resched()) { + arch_leave_lazy_mmu_mode(); pte_unmap_unlock(start_pte, ptl); cond_resched(); goto restart; --=20 2.43.0.429.g432eaa2c6b-goog