From patchwork Tue Nov 17 14:07:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Satya Tangirala X-Patchwork-Id: 11912353 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-20.4 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90716C64E8A for ; Tue, 17 Nov 2020 14:08:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3B3F72083E for ; Tue, 17 Nov 2020 14:08:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="lsrEjARH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387918AbgKQOHc (ORCPT ); Tue, 17 Nov 2020 09:07:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38346 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387910AbgKQOH1 (ORCPT ); Tue, 17 Nov 2020 09:07:27 -0500 Received: from mail-qt1-x84a.google.com (mail-qt1-x84a.google.com [IPv6:2607:f8b0:4864:20::84a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F06DEC061A52 for ; Tue, 17 Nov 2020 06:07:22 -0800 (PST) Received: by mail-qt1-x84a.google.com with SMTP id i14so12408592qtq.18 for ; Tue, 17 Nov 2020 06:07:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=VFLfomyHfS1rChguiUYux0VDzmO87K0fqGJKV/Zo06o=; b=lsrEjARHRfnK+GRKjAxdOdYK84058343x4ulP/2szJFkfRTORC2ldq4cnjAxiY8jFI VQLtam4zqFLuBEcfKLbMnYFBrc32LaXluaMUMRa9Q0lhpOiy17Y8e5FpWCYnvuxFlQcp +qgOqNxvhb7p7nbmzb3olVL/Wp9bYkkluw/hVMI8LRZExpX+23VEDIC4LLOSsmGyFkYJ uYKVQe833Zw5GqXv9aw6cVkP5qfvpcB7mibNUbGyOlTqiXHs2rELMbbwEkRA7ghwvovl 8cJR9PNzWNaFeurdO8tvnYukki2HEdBkRu7gHibwFjZNw2DaBb8Sv8CWJWiewGjFMyKg o55Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=VFLfomyHfS1rChguiUYux0VDzmO87K0fqGJKV/Zo06o=; b=M9VXhK3CJQVbn2dszqjYFK7QiFGfz5FlsE2fikXphjQ9tyszZwva8kpROA3W5pVCkg nJjs0oC80/w5EoSOdP47NjKRcQK1gTxkZozGn1kc+VHupor0T/EZubo/P++/76VfODBG QHnU2yk+rqTm2cuGuFjr5IPsxqWSYCORAhul+iCa9jeApIe3iM1dU0F3EFoWbbF2z1Uj 8tfLw3H0jyZJiBYn7NZWUfpHVeHS8iirj//cUXk5yOSurhrW2Jd0j2kCQK5W7mXnU778 Q/qndJqk0uhUEyypnSwvMy5CNKPM5gQoKjqw0b82vAPHrAn0E8t85ruVQozQjasGtomg hGrg== X-Gm-Message-State: AOAM531zMRqMXOYhgdywGnU2k4mrQqY/J840DszCc+tvvaKHpvUHpzGr AL5mPkyuIcOIw3Maj+nT8f3SHhOVpPA= X-Google-Smtp-Source: ABdhPJziptkvCq37CzgbpEBQNKwt2yD7i4Pi8fsOTIWooGKOH1aD86wFQm0soQyhT2NOVUgerF6aSe6rQFQ= Sender: "satyat via sendgmr" X-Received: from satyaprateek.c.googlers.com ([fda3:e722:ac3:10:24:72f4:c0a8:1092]) (user=satyat job=sendgmr) by 2002:ad4:470d:: with SMTP id k13mr21059648qvz.40.1605622042064; Tue, 17 Nov 2020 06:07:22 -0800 (PST) Date: Tue, 17 Nov 2020 14:07:05 +0000 In-Reply-To: <20201117140708.1068688-1-satyat@google.com> Message-Id: <20201117140708.1068688-6-satyat@google.com> Mime-Version: 1.0 References: <20201117140708.1068688-1-satyat@google.com> X-Mailer: git-send-email 2.29.2.299.gdc1121823c-goog Subject: [PATCH v7 5/8] iomap: support direct I/O with fscrypt using blk-crypto From: Satya Tangirala To: "Theodore Y . Ts'o" , Jaegeuk Kim , Eric Biggers , Chao Yu , Jens Axboe , "Darrick J . Wong" Cc: linux-kernel@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-block@vger.kernel.org, linux-ext4@vger.kernel.org, Eric Biggers , Satya Tangirala Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org From: Eric Biggers Set bio crypt contexts on bios by calling into fscrypt when required. No DUN contiguity checks are done - callers are expected to set up the iomap correctly to ensure that each bio submitted by iomap will not have blocks with incontiguous DUNs by calling fscrypt_limit_io_blocks() appropriately. Signed-off-by: Eric Biggers Co-developed-by: Satya Tangirala Signed-off-by: Satya Tangirala --- fs/iomap/direct-io.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 933f234d5bec..b4240cc3c9f9 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -185,11 +186,14 @@ static void iomap_dio_zero(struct iomap_dio *dio, struct iomap *iomap, loff_t pos, unsigned len) { + struct inode *inode = file_inode(dio->iocb->ki_filp); struct page *page = ZERO_PAGE(0); int flags = REQ_SYNC | REQ_IDLE; struct bio *bio; bio = bio_alloc(GFP_KERNEL, 1); + fscrypt_set_bio_crypt_ctx(bio, inode, pos >> inode->i_blkbits, + GFP_KERNEL); bio_set_dev(bio, iomap->bdev); bio->bi_iter.bi_sector = iomap_sector(iomap, pos); bio->bi_private = dio; @@ -272,6 +276,8 @@ iomap_dio_bio_actor(struct inode *inode, loff_t pos, loff_t length, } bio = bio_alloc(GFP_KERNEL, nr_pages); + fscrypt_set_bio_crypt_ctx(bio, inode, pos >> inode->i_blkbits, + GFP_KERNEL); bio_set_dev(bio, iomap->bdev); bio->bi_iter.bi_sector = iomap_sector(iomap, pos); bio->bi_write_hint = dio->iocb->ki_hint;