From patchwork Thu Aug 2 11:28:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: zhong jiang X-Patchwork-Id: 10553509 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8A9D015E9 for ; Thu, 2 Aug 2018 11:40:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 75B312BCD3 for ; Thu, 2 Aug 2018 11:40:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 69D812BCDB; Thu, 2 Aug 2018 11:40:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BF3C82BCD3 for ; Thu, 2 Aug 2018 11:40:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387439AbeHBNbI (ORCPT ); Thu, 2 Aug 2018 09:31:08 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:41265 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2387403AbeHBNbF (ORCPT ); Thu, 2 Aug 2018 09:31:05 -0400 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 49154A13FC20F; Thu, 2 Aug 2018 19:40:15 +0800 (CST) Received: from linux-ibm.site (10.175.102.37) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.399.0; Thu, 2 Aug 2018 19:40:13 +0800 From: zhong jiang To: , , CC: , , , Subject: [PATCH v2 3/4] drivers/scsi/snic/snic_trc: Use kvcalloc instead of vmalloc+memset Date: Thu, 2 Aug 2018 19:28:33 +0800 Message-ID: <1533209314-1074-4-git-send-email-zhongjiang@huawei.com> X-Mailer: git-send-email 1.7.12.4 In-Reply-To: <1533209314-1074-1-git-send-email-zhongjiang@huawei.com> References: <1533209314-1074-1-git-send-email-zhongjiang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.102.37] X-CFilter-Loop: Reflected Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The kvcalloc is better than vmalloc() + memset() , So replace them. Signed-off-by: zhong jiang --- drivers/scsi/snic/snic_trc.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/snic/snic_trc.c b/drivers/scsi/snic/snic_trc.c index fc60c93..e766fa2 100644 --- a/drivers/scsi/snic/snic_trc.c +++ b/drivers/scsi/snic/snic_trc.c @@ -125,8 +125,8 @@ struct snic_trc_data * void *tbuf = NULL; int tbuf_sz = 0, ret; - tbuf_sz = (snic_trace_max_pages * PAGE_SIZE); - tbuf = vmalloc(tbuf_sz); + tbuf_sz = snic_trace_max_pages * PAGE_SIZE; + tbuf = kvcalloc(snic_trace_max_pages, PAGE_SIZE, GFP_KERNEL); if (!tbuf) { SNIC_ERR("Failed to Allocate Trace Buffer Size. %d\n", tbuf_sz); SNIC_ERR("Trace Facility not enabled.\n"); @@ -135,7 +135,6 @@ struct snic_trc_data * return ret; } - memset(tbuf, 0, tbuf_sz); trc->buf = (struct snic_trc_data *) tbuf; spin_lock_init(&trc->lock); @@ -173,7 +172,7 @@ struct snic_trc_data * snic_trc_debugfs_term(); if (trc->buf) { - vfree(trc->buf); + kvfree(trc->buf); trc->buf = NULL; }