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Fri, 19 Jun 2020 08:29:03 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 2C36F3028C8; Fri, 19 Jun 2020 10:29:02 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 104C4203B7CA2; Fri, 19 Jun 2020 10:29:02 +0200 (CEST) Date: Fri, 19 Jun 2020 10:29:02 +0200 From: Peter Zijlstra To: Axel Rasmussen Cc: Michel Lespinasse , David Howells , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Jonathan Adams , David Rientjes , Ying Han Subject: Re: [RFC PATCH v3 1/1] mmap_lock: add tracepoints around mmap_lock acquisition Message-ID: <20200619082902.GR576905@hirez.programming.kicks-ass.net> References: <20200618222225.102337-1-axelrasmussen@google.com> <20200618222225.102337-2-axelrasmussen@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200618222225.102337-2-axelrasmussen@google.com> X-Rspamd-Queue-Id: 1B3ED3834B X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Jun 18, 2020 at 03:22:25PM -0700, Axel Rasmussen wrote: > > include/linux/lockdep.h | 47 ++++++ > include/linux/mmap_lock.h | 27 ++- > include/linux/rwsem.h | 12 ++ > include/trace/events/mmap_lock.h | 76 +++++++++ > kernel/locking/rwsem.c | 64 +++++++ > mm/Kconfig | 19 +++ > mm/Makefile | 1 + > mm/mmap_lock.c | 281 +++++++++++++++++++++++++++++++ > 8 files changed, 526 insertions(+), 1 deletion(-) > create mode 100644 include/trace/events/mmap_lock.h > create mode 100644 mm/mmap_lock.c This should have been at least a hand-full of patches. Most definitely not a single patch.