From nobody Mon Apr 6 06:33:15 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0A55EECAAD3 for ; Fri, 9 Sep 2022 09:01:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231282AbiIIJA7 (ORCPT ); Fri, 9 Sep 2022 05:00:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231484AbiIIJAh (ORCPT ); Fri, 9 Sep 2022 05:00:37 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2F2154673; Fri, 9 Sep 2022 02:00:18 -0700 (PDT) Date: Fri, 09 Sep 2022 09:00:15 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1662714017; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=za5Ye11Srx+C4dsuaoqgcQVtLwRXeAjNo3NbNXMfiyo=; b=sVPNyOUFIjEw4KBxPJtZJ1osIpZ2a//JShp2UNAlhxtXYewsEZ3UFSCSWoJsnBAAXJJjMN yU0YtAFGxy76zbUAs/YSvROqjkQMm8Olellsk1vAdWnTopiiKEwemolQIZw772QE4qITLT tcDLyTRCz27B16aNVS8hT4lKN6cXBnXwJbTjk5P8O4XKfIx2THQv1u5Y++/VM39+U4MHOi pZtTyzkfbVbJyBvCIisyE01HnK77VJRZr3Ok8vJC49tCvzigCxtP6CUP24ZsMJN+oDjwbz JAW0yTPbnjy3PV/bUKVIfpNf9lqfeDi6x8YfQZcB0F75PBUrqYyzxNkODXAemg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1662714017; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=za5Ye11Srx+C4dsuaoqgcQVtLwRXeAjNo3NbNXMfiyo=; b=xMA0RtBlhJPNPgN7gelX9+C/5J++7D1fK2pJ/nsy0ZGPq5auniB/Haec+XVyo1QSmMfq+z cz32IAs+sSbTysDQ== From: "tip-bot2 for Peter Zijlstra" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: sched/core] sched: Show PF_flag holes Cc: Ingo Molnar , "Peter Zijlstra (Intel)" , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: References: MIME-Version: 1.0 Message-ID: <166271401564.401.13463209336005229265.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the sched/core branch of tip: Commit-ID: fb04563d1cae6f361892b4a339ad92100b1eb0d0 Gitweb: https://git.kernel.org/tip/fb04563d1cae6f361892b4a339ad92100= b1eb0d0 Author: Peter Zijlstra AuthorDate: Tue, 06 Sep 2022 13:27:32 +02:00 Committer: Peter Zijlstra CommitterDate: Wed, 07 Sep 2022 21:53:51 +02:00 sched: Show PF_flag holes Put placeholders in PF_flag so we can see how holey it is. Suggested-by: Ingo Molnar Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Ingo Molnar Link: https://lkml.kernel.org/r/YxctoffFFPXONESt@hirez.programming.kicks-as= s.net --- include/linux/sched.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/sched.h b/include/linux/sched.h index 4c91efd..15e3bd9 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1722,7 +1722,9 @@ extern struct pid *cad_pid; #define PF_MEMALLOC 0x00000800 /* Allocating memory */ #define PF_NPROC_EXCEEDED 0x00001000 /* set_user() noticed that RLIMIT_NPR= OC was exceeded */ #define PF_USED_MATH 0x00002000 /* If unset the fpu must be initialized b= efore use */ +#define PF__HOLE__00004000 0x00004000 #define PF_NOFREEZE 0x00008000 /* This thread should not be frozen */ +#define PF__HOLE__00010000 0x00010000 #define PF_KSWAPD 0x00020000 /* I am kswapd */ #define PF_MEMALLOC_NOFS 0x00040000 /* All allocation requests will inheri= t GFP_NOFS */ #define PF_MEMALLOC_NOIO 0x00080000 /* All allocation requests will inheri= t GFP_NOIO */ @@ -1730,9 +1732,14 @@ extern struct pid *cad_pid; * I am cleaning dirty pages from some other bdi. */ #define PF_KTHREAD 0x00200000 /* I am a kernel thread */ #define PF_RANDOMIZE 0x00400000 /* Randomize virtual address space */ +#define PF__HOLE__00800000 0x00800000 +#define PF__HOLE__01000000 0x01000000 +#define PF__HOLE__02000000 0x02000000 #define PF_NO_SETAFFINITY 0x04000000 /* Userland is not allowed to meddle = with cpus_mask */ #define PF_MCE_EARLY 0x08000000 /* Early kill for mce process policy= */ #define PF_MEMALLOC_PIN 0x10000000 /* Allocation context constrained to z= ones which allow long term pinning. */ +#define PF__HOLE__20000000 0x20000000 +#define PF__HOLE__40000000 0x40000000 #define PF_SUSPEND_TASK 0x80000000 /* This thread called freeze_proc= esses() and should not be frozen */ =20 /*