From patchwork Wed Oct 9 19:25:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Logan Gunthorpe X-Patchwork-Id: 11182013 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A2FF71864 for ; Wed, 9 Oct 2019 19:26:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8EDAC218DE for ; Wed, 9 Oct 2019 19:26:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728804AbfJITZl (ORCPT ); Wed, 9 Oct 2019 15:25:41 -0400 Received: from ale.deltatee.com ([207.54.116.67]:37626 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731874AbfJITZl (ORCPT ); Wed, 9 Oct 2019 15:25:41 -0400 Received: from cgy1-donard.priv.deltatee.com ([172.16.1.31]) by ale.deltatee.com with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iIHaa-0002g3-6l; Wed, 09 Oct 2019 13:25:40 -0600 Received: from gunthorp by cgy1-donard.priv.deltatee.com with local (Exim 4.92) (envelope-from ) id 1iIHaY-0003Q1-AO; Wed, 09 Oct 2019 13:25:34 -0600 From: Logan Gunthorpe To: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: Christoph Hellwig , Sagi Grimberg , Keith Busch , Jens Axboe , Chaitanya Kulkarni , Max Gurtovoy , Stephen Bates , Chaitanya Kulkarni , Logan Gunthorpe Date: Wed, 9 Oct 2019 13:25:20 -0600 Message-Id: <20191009192530.13079-4-logang@deltatee.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191009192530.13079-1-logang@deltatee.com> References: <20191009192530.13079-1-logang@deltatee.com> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 172.16.1.31 X-SA-Exim-Rcpt-To: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, hch@lst.de, sagi@grimberg.me, kbusch@kernel.org, axboe@fb.com, maxg@mellanox.com, sbates@raithlin.com, Chaitanya.Kulkarni@wdc.com, chaitanya.kulkarni@wdc.com, logang@deltatee.com X-SA-Exim-Mail-From: gunthorp@deltatee.com X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on ale.deltatee.com X-Spam-Level: X-Spam-Status: No, score=-8.7 required=5.0 tests=ALL_TRUSTED,BAYES_00, GREYLIST_ISWHITE,MYRULES_NO_TEXT autolearn=ham autolearn_force=no version=3.4.2 Subject: [PATCH v9 03/12] nvmet: add return value to nvmet_add_async_event() X-SA-Exim-Version: 4.2.1 (built Tue, 02 Aug 2016 21:08:31 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Chaitanya Kulkarni Change the return value for nvmet_add_async_event(). This change is needed for the target passthru code which will submit async events on namespaces changes and can fail the command should adding the event fail (on -ENOMEM). Signed-off-by: Chaitanya Kulkarni [logang@deltatee.com: * fleshed out commit message * change to using int as a return type instead of bool ] Signed-off-by: Logan Gunthorpe Reviewed-by: Sagi Grimberg Reviewed-by: Keith Busch --- drivers/nvme/target/core.c | 6 ++++-- drivers/nvme/target/nvmet.h | 2 +- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 3a67e244e568..d6dcb86d8be7 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -173,14 +173,14 @@ static void nvmet_async_event_work(struct work_struct *work) } } -void nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type, +int nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type, u8 event_info, u8 log_page) { struct nvmet_async_event *aen; aen = kmalloc(sizeof(*aen), GFP_KERNEL); if (!aen) - return; + return -ENOMEM; aen->event_type = event_type; aen->event_info = event_info; @@ -191,6 +191,8 @@ void nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type, mutex_unlock(&ctrl->lock); schedule_work(&ctrl->async_event_work); + + return 0; } static void nvmet_add_to_changed_ns_log(struct nvmet_ctrl *ctrl, __le32 nsid) diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index c51f8dd01dc4..3d313a6452cc 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -441,7 +441,7 @@ void nvmet_port_disc_changed(struct nvmet_port *port, struct nvmet_subsys *subsys); void nvmet_subsys_disc_changed(struct nvmet_subsys *subsys, struct nvmet_host *host); -void nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type, +int nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type, u8 event_info, u8 log_page); #define NVMET_QUEUE_SIZE 1024