From patchwork Thu Feb 24 17:55:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12759098 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B78AC433F5 for ; Thu, 24 Feb 2022 17:56:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230405AbiBXR4x (ORCPT ); Thu, 24 Feb 2022 12:56:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52514 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232496AbiBXR4s (ORCPT ); Thu, 24 Feb 2022 12:56:48 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0105D27908D; Thu, 24 Feb 2022 09:56:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=xq3HS8cADsUkcNrBWU64usF7wbFDOeY5hTLBF/MF8fo=; b=CJQ7nhiXQIRuPgHkVyyrpGIb30 YVxdnFskP8yhbfx040ZdtJZluTRAhuUx76WbQqXqzSAhKvOd6oTvYxLI7b3TmrrjH8kByUkJ106cv aN172vkSIfunmV4MldLWNwpDKtebBlCeMLNV4yJM3FzkyMJJsrrYwEqWeLyWZ81+/dfZ95JpPVuzk xlug6llYWLMq8whVyDS5V3dagYYQgIzW65kJ9Ir+gTQgHI1DkL6Ykir6qCvj71l5b35yt57NqCpNV 4oXVx+0TaKgYi66LjCUqxTsnkv2TA3Es1JvruxNLQSPUfM5pGRPftgZ6qmi1Q2ErpQKZ4+Bs11arc sbXN1IPA==; Received: from 089144202139.atnat0011.highway.a1.net ([89.144.202.139] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nNILh-001uZK-1U; Thu, 24 Feb 2022 17:56:17 +0000 From: Christoph Hellwig To: "Martin K. Petersen" Cc: linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, Bart Van Assche Subject: [PATCH 7/8] scsi: remove struct scsi_request Date: Thu, 24 Feb 2022 18:55:51 +0100 Message-Id: <20220224175552.988286-8-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220224175552.988286-1-hch@lst.de> References: <20220224175552.988286-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org Let submitters initialize the scmd->allowed field directly instead of indirecting through struct scsi_request and remove the now superflous structure. Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche Reviewed-by: John Garry --- drivers/scsi/scsi_debugfs.c | 2 +- drivers/scsi/scsi_error.c | 4 +--- drivers/scsi/scsi_ioctl.c | 12 ++++-------- drivers/scsi/scsi_lib.c | 6 +----- drivers/scsi/sg.c | 4 +--- drivers/scsi/sr.c | 2 -- drivers/scsi/st.c | 4 +--- drivers/target/target_core_pscsi.c | 2 +- include/scsi/scsi_cmnd.h | 1 - include/scsi/scsi_request.h | 9 --------- 10 files changed, 10 insertions(+), 36 deletions(-) diff --git a/drivers/scsi/scsi_debugfs.c b/drivers/scsi/scsi_debugfs.c index 17d7f73a895c6..217b70c678c3a 100644 --- a/drivers/scsi/scsi_debugfs.c +++ b/drivers/scsi/scsi_debugfs.c @@ -33,7 +33,7 @@ static int scsi_flags_show(struct seq_file *m, const unsigned long flags, void scsi_show_rq(struct seq_file *m, struct request *rq) { - struct scsi_cmnd *cmd = container_of(scsi_req(rq), typeof(*cmd), req); + struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq); int alloc_ms = jiffies_to_msecs(jiffies - cmd->jiffies_at_alloc); int timeout_ms = jiffies_to_msecs(rq->timeout); char buf[80] = "(?)"; diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index cf02d1c503897..9c237b223e63c 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -2023,12 +2023,10 @@ static void scsi_eh_lock_door(struct scsi_device *sdev) { struct scsi_cmnd *scmd; struct request *req; - struct scsi_request *rq; req = scsi_alloc_request(sdev->request_queue, REQ_OP_DRV_IN, 0); if (IS_ERR(req)) return; - rq = scsi_req(req); scmd = blk_mq_rq_to_pdu(req); scmd->cmnd[0] = ALLOW_MEDIUM_REMOVAL; @@ -2041,7 +2039,7 @@ static void scsi_eh_lock_door(struct scsi_device *sdev) req->rq_flags |= RQF_QUIET; req->timeout = 10 * HZ; - rq->retries = 5; + scmd->allowed = 5; blk_execute_rq_nowait(req, true, eh_lock_door_done); } diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index 04b7c70d1dba3..0613015cae39c 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -411,7 +411,6 @@ static int sg_io(struct scsi_device *sdev, struct sg_io_hdr *hdr, fmode_t mode) int writing = 0; int at_head = 0; struct request *rq; - struct scsi_request *req; struct scsi_cmnd *scmd; struct bio *bio; @@ -440,7 +439,6 @@ static int sg_io(struct scsi_device *sdev, struct sg_io_hdr *hdr, fmode_t mode) REQ_OP_DRV_OUT : REQ_OP_DRV_IN, 0); if (IS_ERR(rq)) return PTR_ERR(rq); - req = scsi_req(rq); scmd = blk_mq_rq_to_pdu(rq); if (hdr->cmd_len > sizeof(scmd->cmnd)) { @@ -475,7 +473,7 @@ static int sg_io(struct scsi_device *sdev, struct sg_io_hdr *hdr, fmode_t mode) goto out_put_request; bio = rq->bio; - req->retries = 0; + scmd->allowed = 0; start_time = jiffies; @@ -521,7 +519,6 @@ static int sg_scsi_ioctl(struct request_queue *q, fmode_t mode, struct scsi_ioctl_command __user *sic) { struct request *rq; - struct scsi_request *req; int err; unsigned int in_len, out_len, bytes, opcode, cmdlen; struct scsi_cmnd *scmd; @@ -555,7 +552,6 @@ static int sg_scsi_ioctl(struct request_queue *q, fmode_t mode, err = PTR_ERR(rq); goto error_free_buffer; } - req = scsi_req(rq); scmd = blk_mq_rq_to_pdu(rq); cmdlen = COMMAND_SIZE(opcode); @@ -576,13 +572,13 @@ static int sg_scsi_ioctl(struct request_queue *q, fmode_t mode, goto error; /* default. possible overridden later */ - req->retries = 5; + scmd->allowed = 5; switch (opcode) { case SEND_DIAGNOSTIC: case FORMAT_UNIT: rq->timeout = FORMAT_UNIT_TIMEOUT; - req->retries = 1; + scmd->allowed = 1; break; case START_STOP: rq->timeout = START_STOP_TIMEOUT; @@ -595,7 +591,7 @@ static int sg_scsi_ioctl(struct request_queue *q, fmode_t mode, break; case READ_DEFECT_DATA: rq->timeout = READ_DEFECT_DATA_TIMEOUT; - req->retries = 1; + scmd->allowed = 1; break; default: rq->timeout = BLK_DEFAULT_SG_TIMEOUT; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 0c41e023a3cea..a7788184908e9 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -213,7 +213,6 @@ int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, int *resid) { struct request *req; - struct scsi_request *rq; struct scsi_cmnd *scmd; int ret; @@ -224,8 +223,6 @@ int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, if (IS_ERR(req)) return PTR_ERR(req); - rq = scsi_req(req); - if (bufflen) { ret = blk_rq_map_kern(sdev->request_queue, req, buffer, bufflen, GFP_NOIO); @@ -235,7 +232,7 @@ int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, scmd = blk_mq_rq_to_pdu(req); scmd->cmd_len = COMMAND_SIZE(cmd[0]); memcpy(scmd->cmnd, cmd, scmd->cmd_len); - rq->retries = retries; + scmd->allowed = retries; req->timeout = timeout; req->cmd_flags |= flags; req->rq_flags |= rq_flags | RQF_QUIET; @@ -1189,7 +1186,6 @@ static blk_status_t scsi_setup_scsi_cmnd(struct scsi_device *sdev, } cmd->transfersize = blk_rq_bytes(req); - cmd->allowed = scsi_req(req)->retries; return BLK_STS_OK; } diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 26a753521cb29..6a1c3ffaf32a0 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1725,7 +1725,6 @@ sg_start_req(Sg_request *srp, unsigned char *cmd) { int res; struct request *rq; - struct scsi_request *req; Sg_fd *sfp = srp->parentfp; sg_io_hdr_t *hp = &srp->header; int dxfer_len = (int) hp->dxfer_len; @@ -1758,7 +1757,6 @@ sg_start_req(Sg_request *srp, unsigned char *cmd) if (IS_ERR(rq)) return PTR_ERR(rq); scmd = blk_mq_rq_to_pdu(rq); - req = scsi_req(rq); if (hp->cmd_len > sizeof(scmd->cmnd)) { blk_mq_free_request(rq); @@ -1770,7 +1768,7 @@ sg_start_req(Sg_request *srp, unsigned char *cmd) srp->rq = rq; rq->end_io_data = srp; - req->retries = SG_DEFAULT_RETRIES; + scmd->allowed = SG_DEFAULT_RETRIES; if ((dxfer_len <= 0) || (dxfer_dir == SG_DXFER_NONE)) return 0; diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 494d00b05f53e..aaa54ad5f0352 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -965,7 +965,6 @@ static int sr_read_cdda_bpc(struct cdrom_device_info *cdi, void __user *ubuf, { struct gendisk *disk = cdi->disk; u32 len = nr * CD_FRAMESIZE_RAW; - struct scsi_request *req; struct scsi_cmnd *scmd; struct request *rq; struct bio *bio; @@ -974,7 +973,6 @@ static int sr_read_cdda_bpc(struct cdrom_device_info *cdi, void __user *ubuf, rq = scsi_alloc_request(disk->queue, REQ_OP_DRV_IN, 0); if (IS_ERR(rq)) return PTR_ERR(rq); - req = scsi_req(rq); scmd = blk_mq_rq_to_pdu(rq); ret = blk_rq_map_user(disk->queue, rq, NULL, ubuf, len, GFP_KERNEL); diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index c8533ca225bc0..6d4213e2e49ae 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -539,7 +539,6 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd, int timeout, int retries) { struct request *req; - struct scsi_request *rq; struct rq_map_data *mdata = &SRpnt->stp->buffer->map_data; int err = 0; struct scsi_tape *STp = SRpnt->stp; @@ -551,7 +550,6 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd, if (IS_ERR(req)) return PTR_ERR(req); scmd = blk_mq_rq_to_pdu(req); - rq = scsi_req(req); req->rq_flags |= RQF_QUIET; mdata->null_mapped = 1; @@ -580,7 +578,7 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd, scmd->cmd_len = COMMAND_SIZE(cmd[0]); memcpy(scmd->cmnd, cmd, scmd->cmd_len); req->timeout = timeout; - rq->retries = retries; + scmd->allowed = retries; req->end_io_data = SRpnt; blk_execute_rq_nowait(req, true, st_scsi_execute_end); diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 5b23a0ff905ea..d18d75d0d750c 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -993,7 +993,7 @@ pscsi_execute_cmd(struct se_cmd *cmd) req->timeout = PS_TIMEOUT_DISK; else req->timeout = PS_TIMEOUT_OTHER; - scsi_req(req)->retries = PS_RETRY; + scmd->allowed = PS_RETRY; cmd->priv = scmd->cmnd; diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index 5ff0a6e8460c3..4b33ca6a7c7d6 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -68,7 +68,6 @@ enum scsi_cmnd_submitter { } __packed; struct scsi_cmnd { - struct scsi_request req; struct scsi_device *device; struct list_head eh_entry; /* entry for the host eh_abort_list/eh_cmd_q */ struct delayed_work abort_work; diff --git a/include/scsi/scsi_request.h b/include/scsi/scsi_request.h index 929c7bd5c72fe..6d424d3e8d02f 100644 --- a/include/scsi/scsi_request.h +++ b/include/scsi/scsi_request.h @@ -4,13 +4,4 @@ #include -struct scsi_request { - int retries; -}; - -static inline struct scsi_request *scsi_req(struct request *rq) -{ - return blk_mq_rq_to_pdu(rq); -} - #endif /* _SCSI_SCSI_REQUEST_H */