From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Fri, 27 Jul 2018 15:59:43 +0200 (CEST) Received: from mx3-rdu2.redhat.com ([66.187.233.73]:40182 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by eddie.linux-mips.org with ESMTP id S23992492AbeG0N7jY9dDF (ORCPT ); Fri, 27 Jul 2018 15:59:39 +0200 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 866D381663CC; Fri, 27 Jul 2018 13:59:33 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.34.27.30]) by smtp.corp.redhat.com (Postfix) with SMTP id C80922026D6B; Fri, 27 Jul 2018 13:59:30 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Fri, 27 Jul 2018 15:59:33 +0200 (CEST) Date: Fri, 27 Jul 2018 15:59:30 +0200 From: Oleg Nesterov To: Ravi Bangoria Cc: srikar@linux.vnet.ibm.com, rostedt@goodmis.org, mhiramat@kernel.org, peterz@infradead.org, mingo@redhat.com, acme@kernel.org, alexander.shishkin@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org, linux-kernel@vger.kernel.org, ananth@linux.vnet.ibm.com, alexis.berlemont@gmail.com, naveen.n.rao@linux.vnet.ibm.com, linux-arm-kernel@lists.infradead.org, linux-mips@linux-mips.org, linux@armlinux.org.uk, ralf@linux-mips.org, paul.burton@mips.com Subject: Re: [PATCH v6 3/6] Uprobes: Support SDT markers having reference count (semaphore) Message-ID: <20180727135929.GB3618@redhat.com> References: <20180716084706.28244-1-ravi.bangoria@linux.ibm.com> <20180716084706.28244-4-ravi.bangoria@linux.ibm.com> <20180723162629.GA8584@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Fri, 27 Jul 2018 13:59:33 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Fri, 27 Jul 2018 13:59:33 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'oleg@redhat.com' RCPT:'' Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 65204 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: oleg@redhat.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On 07/24, Ravi Bangoria wrote: > > > Perhaps we can even add another flag later, MMF_HAS_DELAYED_UPROBES set by > > delayed_uprobe_add(). > > Yes, good idea. But let me repeat, lets do this later. We can do even better I think, say, move this delaed-list into uprobes_state. But imo the 1st version can just check MMF_HAS_UPROBES because this is simple, obviously correct, and can actually help. Oleg. From mboxrd@z Thu Jan 1 00:00:00 1970 From: oleg@redhat.com (Oleg Nesterov) Date: Fri, 27 Jul 2018 15:59:30 +0200 Subject: [PATCH v6 3/6] Uprobes: Support SDT markers having reference count (semaphore) In-Reply-To: References: <20180716084706.28244-1-ravi.bangoria@linux.ibm.com> <20180716084706.28244-4-ravi.bangoria@linux.ibm.com> <20180723162629.GA8584@redhat.com> Message-ID: <20180727135929.GB3618@redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 07/24, Ravi Bangoria wrote: > > > Perhaps we can even add another flag later, MMF_HAS_DELAYED_UPROBES set by > > delayed_uprobe_add(). > > Yes, good idea. But let me repeat, lets do this later. We can do even better I think, say, move this delaed-list into uprobes_state. But imo the 1st version can just check MMF_HAS_UPROBES because this is simple, obviously correct, and can actually help. Oleg.