From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1EF1DC433EF for ; Wed, 8 Jun 2022 17:18:09 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9728B6B0073; Wed, 8 Jun 2022 13:18:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8FB4F6B0074; Wed, 8 Jun 2022 13:18:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7C40F6B0075; Wed, 8 Jun 2022 13:18:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 6BAD76B0073 for ; Wed, 8 Jun 2022 13:18:08 -0400 (EDT) Received: from smtpin29.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay13.hostedemail.com (Postfix) with ESMTP id 48F1A60213 for ; Wed, 8 Jun 2022 17:18:08 +0000 (UTC) X-FDA: 79555726656.29.86E6E88 Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) by imf23.hostedemail.com (Postfix) with ESMTP id C67EE140038 for ; Wed, 8 Jun 2022 17:18:07 +0000 (UTC) Received: from pps.filterd (m0148461.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 258FPPJH020826 for ; Wed, 8 Jun 2022 10:18:06 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=Ql6iLhooUD0Dcm1lXif58GidTsVYMKW+1JrVOBVCBsc=; b=jGKOz5XyLaAscJ7ZtRK4zatK4Ndha6AMDoPI8i6GZzjMzknzbwjlHhtO1tJJT7ijalm4 Les7221p+yUVyQhjzddJAET37InAiy0TmDbQGOHsmRy0sY+0yOP9OHepv13+JmLxKjFC hMAbgG64xcGXMqZzGUrClyeG/Tu/eDskH0I= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 3gjhy6vkc4-4 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 08 Jun 2022 10:18:06 -0700 Received: from twshared17349.03.ash7.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.28; Wed, 8 Jun 2022 10:18:04 -0700 Received: by devvm225.atn0.facebook.com (Postfix, from userid 425415) id 9B2E5103BFB5C; Wed, 8 Jun 2022 10:17:43 -0700 (PDT) From: Stefan Roesch To: , , , , CC: , , , , Subject: [PATCH v8 06/14] iomap: Return -EAGAIN from iomap_write_iter() Date: Wed, 8 Jun 2022 10:17:33 -0700 Message-ID: <20220608171741.3875418-7-shr@fb.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220608171741.3875418-1-shr@fb.com> References: <20220608171741.3875418-1-shr@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-GUID: WsMAZ810NXSJTV6jnhKa3K46sMhsAdzu X-Proofpoint-ORIG-GUID: WsMAZ810NXSJTV6jnhKa3K46sMhsAdzu X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.874,Hydra:6.0.517,FMLib:17.11.64.514 definitions=2022-06-08_05,2022-06-07_02,2022-02-23_01 X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: C67EE140038 Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=fb.com header.s=facebook header.b=jGKOz5Xy; dmarc=pass (policy=reject) header.from=fb.com; spf=none (imf23.hostedemail.com: domain of "prvs=7158831454=shr@fb.com" has no SPF policy when checking 67.231.145.42) smtp.mailfrom="prvs=7158831454=shr@fb.com" X-Stat-Signature: w3x6qn1e317y1ebp6nhwwx6n7hde316o X-Rspam-User: X-HE-Tag: 1654708687-989119 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: If iomap_write_iter() encounters -EAGAIN, return -EAGAIN to the caller. Signed-off-by: Stefan Roesch --- fs/iomap/buffered-io.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index b06a5c24a4db..f701dcb7c26a 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -829,7 +829,13 @@ static loff_t iomap_write_iter(struct iomap_iter *it= er, struct iov_iter *i) length -=3D status; } while (iov_iter_count(i) && length); =20 - return written ? written : status; + if (status =3D=3D -EAGAIN) { + iov_iter_revert(i, written); + return -EAGAIN; + } + if (written) + return written; + return status; } =20 ssize_t --=20 2.30.2