From patchwork Tue Jun 12 19:05:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 10460917 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 7CABA601A0 for ; Tue, 12 Jun 2018 19:07:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6E1DF28B0B for ; Tue, 12 Jun 2018 19:07:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6215028B12; Tue, 12 Jun 2018 19:07:48 +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=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D5AE528B0B for ; Tue, 12 Jun 2018 19:07:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934330AbeFLTH2 (ORCPT ); Tue, 12 Jun 2018 15:07:28 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:39170 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933321AbeFLTFv (ORCPT ); Tue, 12 Jun 2018 15:05:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=QDYBaXSZD3DE9qAWvEFRrZU+wXiSKmoqNtRllHYqjEE=; b=uzGnMsfxbFDTEAjsfyzd8jS/N 77ym7m5pifK6Mig27z8Cv2h3BBCDWLB+EHcoSbE06XUEr7xQ42gmi2f58kuYPGbSRz8D0vG5lrAmg 85i+xdP3XndU7mGtYUvU01ecRP9SC7Gsbg/l9LzZlZG4tH9OnNdKRvFCal3eeZ5C7iLOtO3pofoJr 3gKySfEVfjoyH3W3jmdqDfRCfk7USw0KIni4R6gW7BrK/owjDCJTwNxLyRq4Cn3EbP+FPQps/xfjp UD/bHeRXxFaeN7fsiuhIBhAouRTIvajznUxaOR6PKSqPEni4t7KA6nxtUEozPVVxvXUZRbpyiCR0l jIx1iGxmQ==; Received: from willy by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1fSoc2-0002ui-CB; Tue, 12 Jun 2018 19:05:50 +0000 From: Matthew Wilcox To: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux1394-devel@lists.sourceforge.net, linux-usb@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, Juergen Gross , qla2xxx-upstream@qlogic.com, Kent Overstreet , Jens Axboe Cc: Matthew Wilcox Subject: [PATCH 1/3] target: Abstract tag freeing Date: Tue, 12 Jun 2018 12:05:43 -0700 Message-Id: <20180612190545.10781-2-willy@infradead.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180612190545.10781-1-willy@infradead.org> References: <20180612190545.10781-1-willy@infradead.org> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Introduce target_free_tag() and convert all drivers to use it. Signed-off-by: Matthew Wilcox --- drivers/scsi/qla2xxx/qla_target.c | 4 ++-- drivers/target/iscsi/iscsi_target_util.c | 2 +- drivers/target/sbp/sbp_target.c | 2 +- drivers/target/tcm_fc/tfc_cmd.c | 4 ++-- drivers/usb/gadget/function/f_tcm.c | 2 +- drivers/vhost/scsi.c | 2 +- drivers/xen/xen-scsiback.c | 4 +--- include/target/target_core_base.h | 5 +++++ 8 files changed, 14 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index b85c833099ff..05290966e630 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -3783,7 +3783,7 @@ void qlt_free_cmd(struct qla_tgt_cmd *cmd) return; } cmd->jiffies_at_free = get_jiffies_64(); - percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); + target_free_tag(sess->se_sess, &cmd->se_cmd); } EXPORT_SYMBOL(qlt_free_cmd); @@ -4146,7 +4146,7 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd) qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0); qlt_decr_num_pend_cmds(vha); - percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); + target_free_tag(sess->se_sess, &cmd->se_cmd); spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); spin_lock_irqsave(&ha->tgt.sess_lock, flags); diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index 4435bf374d2d..7e98697cfb8e 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -711,7 +711,7 @@ void iscsit_release_cmd(struct iscsi_cmd *cmd) kfree(cmd->iov_data); kfree(cmd->text_in_ptr); - percpu_ida_free(&sess->se_sess->sess_tag_pool, se_cmd->map_tag); + target_free_tag(sess->se_sess, se_cmd); } EXPORT_SYMBOL(iscsit_release_cmd); diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c index fb1003921d85..679ae29d25ab 100644 --- a/drivers/target/sbp/sbp_target.c +++ b/drivers/target/sbp/sbp_target.c @@ -1460,7 +1460,7 @@ static void sbp_free_request(struct sbp_target_request *req) kfree(req->pg_tbl); kfree(req->cmd_buf); - percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag); + target_free_tag(se_sess, se_cmd); } static void sbp_mgt_agent_process(struct work_struct *work) diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index ec372860106f..13e4efbe1ce7 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -92,7 +92,7 @@ static void ft_free_cmd(struct ft_cmd *cmd) if (fr_seq(fp)) fc_seq_release(fr_seq(fp)); fc_frame_free(fp); - percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); + target_free_tag(sess->se_sess, &cmd->se_cmd); ft_sess_put(sess); /* undo get from lookup at recv */ } @@ -461,7 +461,7 @@ static void ft_recv_cmd(struct ft_sess *sess, struct fc_frame *fp) cmd->sess = sess; cmd->seq = fc_seq_assign(lport, fp); if (!cmd->seq) { - percpu_ida_free(&se_sess->sess_tag_pool, tag); + target_free_tag(se_sess, &cmd->se_cmd); goto busy; } cmd->req_frame = fp; /* hold frame during cmd */ diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index d78dbb73bde8..9f670d9224b9 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -1288,7 +1288,7 @@ static void usbg_release_cmd(struct se_cmd *se_cmd) struct se_session *se_sess = se_cmd->se_sess; kfree(cmd->data_buf); - percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag); + target_free_tag(se_sess, se_cmd); } static u32 usbg_sess_get_index(struct se_session *se_sess) diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 7ad57094d736..70d35e696533 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -324,7 +324,7 @@ static void vhost_scsi_release_cmd(struct se_cmd *se_cmd) } vhost_scsi_put_inflight(tv_cmd->inflight); - percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag); + target_free_tag(se_sess, se_cmd); } static u32 vhost_scsi_sess_get_index(struct se_session *se_sess) diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 7bc88fd43cfc..ec6635258ed8 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -1377,9 +1377,7 @@ static int scsiback_check_stop_free(struct se_cmd *se_cmd) static void scsiback_release_cmd(struct se_cmd *se_cmd) { - struct se_session *se_sess = se_cmd->se_sess; - - percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag); + target_free_tag(se_cmd->se_sess, se_cmd); } static u32 scsiback_sess_get_index(struct se_session *se_sess) diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 922a39f45abc..260c2f3e9460 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -934,4 +934,9 @@ static inline void atomic_dec_mb(atomic_t *v) smp_mb__after_atomic(); } +static inline void target_free_tag(struct se_session *sess, struct se_cmd *cmd) +{ + percpu_ida_free(&sess->sess_tag_pool, cmd->map_tag); +} + #endif /* TARGET_CORE_BASE_H */