From patchwork Tue Sep 5 12:38:53 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gilad Ben-Yossef X-Patchwork-Id: 9938901 X-Patchwork-Delegate: snitzer@redhat.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 185EF602B6 for ; Tue, 5 Sep 2017 12:52:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 090F62891C for ; Tue, 5 Sep 2017 12:52:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F1B522897B; Tue, 5 Sep 2017 12:52:43 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id AA7642891C for ; Tue, 5 Sep 2017 12:52:43 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C73A84B8C; Tue, 5 Sep 2017 12:52:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com C73A84B8C Authentication-Results: ext-mx03.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=benyossef.com Authentication-Results: ext-mx03.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=dm-devel-bounces@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com C73A84B8C Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id ACEF5745AA; Tue, 5 Sep 2017 12:52:42 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 848BB3FAD0; Tue, 5 Sep 2017 12:52:42 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id v85Cgnxv021566 for ; Tue, 5 Sep 2017 08:42:49 -0400 Received: by smtp.corp.redhat.com (Postfix) id 7DA81835DB; Tue, 5 Sep 2017 12:42:49 +0000 (UTC) Delivered-To: dm-devel@redhat.com Received: from mx1.redhat.com (ext-mx02.extmail.prod.ext.phx2.redhat.com [10.5.110.26]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B0905835C9; Tue, 5 Sep 2017 12:42:45 +0000 (UTC) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by mx1.redhat.com (Postfix) with ESMTP id AB8818E75B; Tue, 5 Sep 2017 12:42:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com AB8818E75B Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=benyossef.com Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; spf=none smtp.mailfrom=gilad@benyossef.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com AB8818E75B Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 50972165C; Tue, 5 Sep 2017 05:42:44 -0700 (PDT) Received: from gby.kfn.arm.com (unknown [10.45.48.140]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 624513F3E1; Tue, 5 Sep 2017 05:42:35 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Shaohua Li , Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-raid@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Date: Tue, 5 Sep 2017 15:38:53 +0300 Message-Id: <1504615144-29770-15-git-send-email-gilad@benyossef.com> In-Reply-To: <1504615144-29770-1-git-send-email-gilad@benyossef.com> References: <1504615144-29770-1-git-send-email-gilad@benyossef.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 205 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Tue, 05 Sep 2017 12:42:44 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Tue, 05 Sep 2017 12:42:44 +0000 (UTC) for IP:'217.140.101.70' DOMAIN:'usa-sjc-mx-foss1.foss.arm.com' HELO:'foss.arm.com' FROM:'gilad@benyossef.com' RCPT:'' X-RedHat-Spam-Score: -5 (RCVD_IN_DNSWL_HI) 217.140.101.70 usa-sjc-mx-foss1.foss.arm.com 217.140.101.70 usa-sjc-mx-foss1.foss.arm.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.26 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: dm-devel@redhat.com Cc: Ofir Drang Subject: [dm-devel] [PATCH v8 14/20] cifs: move to generic async completion X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Tue, 05 Sep 2017 12:52:43 +0000 (UTC) X-Virus-Scanned: ClamAV using ClamSMTP cifs starts an async. crypto op and waits for their completion. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef Acked-by: Pavel Shilovsky --- fs/cifs/smb2ops.c | 30 ++++-------------------------- 1 file changed, 4 insertions(+), 26 deletions(-) diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index fb2934b..982b39d 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -2066,22 +2066,6 @@ init_sg(struct smb_rqst *rqst, u8 *sign) return sg; } -struct cifs_crypt_result { - int err; - struct completion completion; -}; - -static void cifs_crypt_complete(struct crypto_async_request *req, int err) -{ - struct cifs_crypt_result *res = req->data; - - if (err == -EINPROGRESS) - return; - - res->err = err; - complete(&res->completion); -} - static int smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key) { @@ -2122,12 +2106,10 @@ crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc) struct aead_request *req; char *iv; unsigned int iv_len; - struct cifs_crypt_result result = {0, }; + DECLARE_CRYPTO_WAIT(wait); struct crypto_aead *tfm; unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize); - init_completion(&result.completion); - rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key); if (rc) { cifs_dbg(VFS, "%s: Could not get %scryption key\n", __func__, @@ -2187,14 +2169,10 @@ crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc) aead_request_set_ad(req, assoc_data_len); aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - cifs_crypt_complete, &result); + crypto_req_done, &wait); - rc = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req); - - if (rc == -EINPROGRESS || rc == -EBUSY) { - wait_for_completion(&result.completion); - rc = result.err; - } + rc = crypto_wait_req(enc ? crypto_aead_encrypt(req) + : crypto_aead_decrypt(req), &wait); if (!rc && enc) memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE);