From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 495C5C7618B for ; Mon, 29 Jul 2019 17:19:36 +0000 (UTC) Received: from shelob.surriel.com (shelob.surriel.com [96.67.55.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 07B9E2070B for ; Mon, 29 Jul 2019 17:19:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="SE/w52s5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 07B9E2070B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=fail smtp.mailfrom=kernelnewbies-bounces@kernelnewbies.org Received: from localhost ([::1] helo=shelob.surriel.com) by shelob.surriel.com with esmtp (Exim 4.92) (envelope-from ) id 1hs9Im-0007BU-S7; Mon, 29 Jul 2019 13:19:12 -0400 Received: from mail-ot1-x32f.google.com ([2607:f8b0:4864:20::32f]) by shelob.surriel.com with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.92) (envelope-from ) id 1hs9Ik-0007BL-UY for kernelnewbies@kernelnewbies.org; Mon, 29 Jul 2019 13:19:11 -0400 Received: by mail-ot1-x32f.google.com with SMTP id j19so24861360otq.2 for ; Mon, 29 Jul 2019 10:19:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=XRE49kbhJJ1iOiptpBLMbmBQbbFFOx1r4JEqsRit3Yg=; b=SE/w52s5tkOAX9RtF5CHXjM3DK+cpwnyVzy+COgd6vF9Ixzxka+6jPF/pGEZceTrGx H/UfHrx6IQRyCw1CGfCPWDHmdiES5RvNNidvf1Tw/JrbPeUm07JQAdBwBZWjsjCvdQTp XzabGdD5gU/hlRZHO7SkUmqgWuvf3wxz76/JcG4PeDNP6ydSW0vBonxF3TKuGPdi9OYU 2CdLeChXOkz7SCcAkZ7GS8EkB5ZZYH3ILolCkRUnB0g6vBBgtREbyguEv7oFtQ3YCzWv +GmzItYWLRUKvW7dz0jcUXl/DyQFVX5FGal3fx01tP8ujHQx3pYXZCgR4M81Zg/9DZg+ NicA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=XRE49kbhJJ1iOiptpBLMbmBQbbFFOx1r4JEqsRit3Yg=; b=YaK6P1QtQ310CK/BwElwV1szXwX0hYmigCCGWAJLxbx3NQFkPN52b8XTtPTswdqm8j HPh4xRT6LrPu3n4HEztIKuEk+Sig0VihOq6H9V/9mFYspck89z6vYJubVqZNuodqFA+9 4K6/KAHEx4hEWZkjK4u8CISELXtQTIJy+Q2z0/d5V1VycWSN7ZTCgnL9eGZr4apq0Orf rGXSA98Dt1CPF6Uo03A2Ht2s9KwzO4Fq/d5dcoSoSQ/x1yRH6m6OXuipxdToBkzOXaZt Og22CFL2iPMwPoHkNb9iEh98pi+HAXIf2D0fBFeVFqWa+HMNeJxTnqfLwbbhi5uEDMdb p+ig== X-Gm-Message-State: APjAAAV6Ot01D/akRLr0dt90Hs1q2W8EXMt10Jkb+/mNa+BzkyD4ISEA 7fy4WyVza8bBSG2BIPIbGdKjm8MvmstLQVBOfM7r3JWF4ns= X-Google-Smtp-Source: APXvYqzJsRaIFb4nkffSwJjCvrcBJqx5cCpEuhP6v236Yz5pnCIfTfcb1shqKC5txmgDdIQJDqI2i7Q3fnBClz+sgpc= X-Received: by 2002:a9d:6e6:: with SMTP id 93mr85099985otx.273.1564420748978; Mon, 29 Jul 2019 10:19:08 -0700 (PDT) MIME-Version: 1.0 From: Muni Sekhar Date: Mon, 29 Jul 2019 22:48:57 +0530 Message-ID: Subject: wait_event()\ wait_event_interruptible()\ wait_event_interruptible_timeout() and wake_up() To: kernelnewbies X-BeenThere: kernelnewbies@kernelnewbies.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Learn about the Linux kernel List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kernelnewbies-bounces@kernelnewbies.org Hi All, Let us assume that multiple processes are waiting on wait_event()\ wait_event_interruptible()\ wait_event_interruptible_timeout(), which process gets woken up on calling wake_up()?? I presume wake_up() picks one process, but is there any algorithm to pick which process? -- Thanks, Sekhar _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies