From patchwork Wed Aug 14 20:38:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 13763981 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AF4691DAC54 for ; Wed, 14 Aug 2024 20:40:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723668053; cv=none; b=GIt1dIbN7xFVQrg95B3PzRKGOjv4dUhNP6LOJVt7d8jrz7698QpXTb/imZKkW0pyD2z7Vvvf7//AOhM7SqXL0bqKYc/mXnVoV2mNS8sYcoyk3VDc/DlH33YDbhAFG9kfiCAwJRvQuFpnfU9xSYyEZNzLBEkznTonpNjGigAVon4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723668053; c=relaxed/simple; bh=cHxke0ZCJxAJBo0yQTk/wSBW5w+L6DpeDHn+tU3fjpo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Y8PFs4kXnB2MH8d0EvlhM+6R3UeYFa87UXU8qoXw4fJVNLiyHS/LDhikbdfDbQU7j1uNiMHkOC3Er4/pFFpBnL+niOPrZXGh7GOXeHl5Hmreu0clD3BbIQeKOlnN91dW2qmibb+0F0L+Bny7VNm8W/NKGw1y5aSyR1hLlYrQmK0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=WJvLTAIm; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="WJvLTAIm" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1723668050; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=w97nPU0tAGeP5M9LqJOBxzdkU1NC+KgCeHw19Arp5sY=; b=WJvLTAIm0xBo9hcf7VKKO1FCWN8/EE7n/ZOxURtaV3MTIqEmY5MEKnXCuz3DI6cNgpmwyn PAh3x+2rpZ8Q8t/eLrDyxKFVzbToE6x4vgVEDNrkDwBrc80wbzJW9J7Ec4ESbY2/ovL+sB nxehIJ9eovA3A8Px+I3NB75jkliAO38= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-41-BVHWuZvpPrWVhSRWafLQKA-1; Wed, 14 Aug 2024 16:40:44 -0400 X-MC-Unique: BVHWuZvpPrWVhSRWafLQKA-1 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id EBA0F1954206; Wed, 14 Aug 2024 20:40:40 +0000 (UTC) Received: from warthog.procyon.org.uk.com (unknown [10.42.28.30]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id E563719560A3; Wed, 14 Aug 2024 20:40:34 +0000 (UTC) From: David Howells To: Christian Brauner , Steve French , Matthew Wilcox Cc: David Howells , Jeff Layton , Gao Xiang , Dominique Martinet , Marc Dionne , Paulo Alcantara , Shyam Prasad N , Tom Talpey , Eric Van Hensbergen , Ilya Dryomov , netfs@lists.linux.dev, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs@lists.linux.dev, linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Alexander Viro Subject: [PATCH v2 13/25] iov_iter: Provide copy_folio_from_iter() Date: Wed, 14 Aug 2024 21:38:33 +0100 Message-ID: <20240814203850.2240469-14-dhowells@redhat.com> In-Reply-To: <20240814203850.2240469-1-dhowells@redhat.com> References: <20240814203850.2240469-1-dhowells@redhat.com> Precedence: bulk X-Mailing-List: ceph-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Provide a copy_folio_from_iter() wrapper. Signed-off-by: David Howells cc: Alexander Viro cc: Christian Brauner cc: Matthew Wilcox cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org cc: linux-mm@kvack.org --- include/linux/uio.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/uio.h b/include/linux/uio.h index 845d110acadc..853f9de5aa05 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -189,6 +189,12 @@ static inline size_t copy_folio_to_iter(struct folio *folio, size_t offset, return copy_page_to_iter(&folio->page, offset, bytes, i); } +static inline size_t copy_folio_from_iter(struct folio *folio, size_t offset, + size_t bytes, struct iov_iter *i) +{ + return copy_page_from_iter(&folio->page, offset, bytes, i); +} + static inline size_t copy_folio_from_iter_atomic(struct folio *folio, size_t offset, size_t bytes, struct iov_iter *i) {