Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933595AbaFLPed (ORCPT ); Thu, 12 Jun 2014 11:34:33 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60519 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756180AbaFLPbZ (ORCPT ); Thu, 12 Jun 2014 11:31:25 -0400 From: Jiri Olsa To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Jiri Olsa , Arnaldo Carvalho de Melo , Corey Ashford , David Ahern , Frederic Weisbecker , Jean Pihet , Namhyung Kim , Paul Mackerras , Peter Zijlstra Subject: [PATCH 06/14] perf tools: Add global count of opened dso objects Date: Thu, 12 Jun 2014 17:30:37 +0200 Message-Id: <1402587045-5461-7-git-send-email-jolsa@kernel.org> In-Reply-To: <1402587045-5461-1-git-send-email-jolsa@kernel.org> References: <1402587045-5461-1-git-send-email-jolsa@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adding global count of opened dso objects so we could properly limit the number of opened dso data file descriptors. Acked-by: Namhyung Kim Cc: Arnaldo Carvalho de Melo Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jean Pihet Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1401892622-30848-6-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa --- tools/perf/util/dso.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index 5d7c7bc..76e5c13 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -1,3 +1,4 @@ +#include #include "symbol.h" #include "dso.h" #include "machine.h" @@ -137,18 +138,23 @@ int dso__read_binary_type_filename(const struct dso *dso, } /* - * Global list of open DSOs. + * Global list of open DSOs and the counter. */ static LIST_HEAD(dso__data_open); +static long dso__data_open_cnt; static void dso__list_add(struct dso *dso) { list_add_tail(&dso->data.open_entry, &dso__data_open); + dso__data_open_cnt++; } static void dso__list_del(struct dso *dso) { list_del(&dso->data.open_entry); + WARN_ONCE(dso__data_open_cnt <= 0, + "DSO data fd counter out of bounds."); + dso__data_open_cnt--; } static int __open_dso(struct dso *dso, struct machine *machine) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/