From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 22 Jun 2021 10:27:49 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1lvbl7-00086S-0o for lore@lore.pengutronix.de; Tue, 22 Jun 2021 10:27:49 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lvbl6-00035O-6k for lore@pengutronix.de; Tue, 22 Jun 2021 10:27:48 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Sb0qtmsgWuw0YkiQUBjTP25mezz5atdRqwngeIHH5oQ=; b=xhhM4kQG/HsJCU L9nRyUvO3QGeIhD0LZlMeADHlgiQv+unC91hy57Afr4kaWvywzxt2vrcrc7+PxQLYLDLqjutIl6LA 1ShQf5puXuI9hdmRXwGm4DyUjnxKx2tbDynL+yi2mbXoXyFjhLlwYWCwxqmWzanICoEqtseHFCnYV X3ZChtB1tofKYHiZt00Ma1wlR4DoAmy5vUGhNBHGrbpnt8rNAFBIBVWtwojstZsG7imYEcbwXutl3 GN9WXufvcUlFoQnkSwCSkRGOyofJp23obgELSEUA7rKBiwhLqJymkNTzpLKl3oURleBS1KkMcNPvb JknOr9763KhEGKOfhTgQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvbjn-006E2y-Ju; Tue, 22 Jun 2021 08:26:27 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvbji-006E14-Ll for barebox@lists.infradead.org; Tue, 22 Jun 2021 08:26:23 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lvbjh-0002id-Ch; Tue, 22 Jun 2021 10:26:21 +0200 Received: from afa by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1lvbjh-0005hl-0H; Tue, 22 Jun 2021 10:26:21 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Tue, 22 Jun 2021 10:26:11 +0200 Message-Id: <20210622082617.18011-3-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210622082617.18011-1-a.fatoum@pengutronix.de> References: <20210622082617.18011-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210622_012622_740371_D8F5AEF4 X-CRM114-Status: GOOD ( 10.49 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:e::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.6 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v4 2/8] bthread: add debug print for scheduler context switches X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) When debugging around bthreads, it's often useful to log context switches. Make this easier by adding a ready-to-use pr_debug at the correct location. Signed-off-by: Ahmad Fatoum --- common/bthread.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/common/bthread.c b/common/bthread.c index c811797130eb..80651344da64 100644 --- a/common/bthread.c +++ b/common/bthread.c @@ -163,7 +163,10 @@ void bthread_info(void) void bthread_reschedule(void) { - bthread_schedule(list_next_entry(current, list)); + struct bthread *next = list_next_entry(current, list); + if (current != next) + pr_debug("switch %s -> %s\n", current->name, next->name); + bthread_schedule(next); } void bthread_schedule(struct bthread *to) -- 2.29.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox