From patchwork Tue Aug 15 03:13:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sinan Kaya X-Patchwork-Id: 130317 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 436AD43069; Tue, 15 Aug 2023 05:13:35 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3C90F4326F; Tue, 15 Aug 2023 05:13:18 +0200 (CEST) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by mails.dpdk.org (Postfix) with ESMTP id F06134325D for ; Tue, 15 Aug 2023 05:13:14 +0200 (CEST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7F64A62BC1; Tue, 15 Aug 2023 03:13:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 93BDDC433C8; Tue, 15 Aug 2023 03:13:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692069193; bh=ZdC2Q3HXCeijxpFXFzJ1TeGigpvZML+ZcEtkNdCQ+aY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=F8BNGwm/3/BIuYQRU2NhXIJeUbqnwL9Quk0ivU/UEzda53T2tON1BTp3ILFIcnMD1 gXlljXRB9NOgOMfdwWPk4Wi07d5cdl9vcwph9enKJEdECscg8eTp4gIErxKo0HmqtI Icl58ucP1GCvlg+Ad037CnxG1FdnHVTWLOFAZhnrpxa9PzUvFjCe23b3CzVeRqZVnN WOga3TrvtRccBVaBnErxhZ5izcfjB2Q+8mJ53ZBh3jUoKZgxWcVCcvBPRfJ9YMi8Ym rAsx9kFoZjJpDgXisKZZWGtHopNDzq5Ud/6ODkxSNUoyjtU2swR1Nya6LnN2jssGcW 2UNR6uZQhV6sQ== From: okaya@kernel.org To: Anatoly Burakov Cc: dev@dpdk.org, Sinan Kaya Subject: [PATCH v2 4/7] memseg: init once Date: Mon, 14 Aug 2023 23:13:04 -0400 Message-Id: <20230815031307.1299726-5-okaya@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230815031307.1299726-1-okaya@kernel.org> References: <20230815031307.1299726-1-okaya@kernel.org> MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org From: Sinan Kaya Initialize memory segments just once and bail out if called multiple times. Signed-off-by: Sinan Kaya --- lib/eal/linux/eal_memory.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/lib/eal/linux/eal_memory.c b/lib/eal/linux/eal_memory.c index 60fc8cc6ca..b998b366d2 100644 --- a/lib/eal/linux/eal_memory.c +++ b/lib/eal/linux/eal_memory.c @@ -57,6 +57,7 @@ */ static int phys_addrs_available = -1; +static bool memseg_initialized; #define RANDOMIZE_VA_SPACE_FILE "/proc/sys/kernel/randomize_va_space" @@ -1902,6 +1903,10 @@ rte_eal_memseg_init(void) { /* increase rlimit to maximum */ struct rlimit lim; + int ret; + + if (memseg_initialized) + return 0; #ifndef RTE_EAL_NUMA_AWARE_HUGEPAGES const struct internal_config *internal_conf = @@ -1930,11 +1935,16 @@ rte_eal_memseg_init(void) } #endif - return rte_eal_process_type() == RTE_PROC_PRIMARY ? + ret = rte_eal_process_type() == RTE_PROC_PRIMARY ? #ifndef RTE_ARCH_64 memseg_primary_init_32() : #else memseg_primary_init() : #endif memseg_secondary_init(); + + if (!ret) + memseg_initialized = true; + + return ret; }