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Fri, 24 Mar 2023 18:17:50 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3pgxk4bx51-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 24 Mar 2023 18:17:50 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 32OIHiEN021017; Fri, 24 Mar 2023 18:17:49 GMT Received: from mnchrist-mac.us.oracle.com (dhcp-10-154-153-54.vpn.oracle.com [10.154.153.54]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3pgxk4bx19-3; Fri, 24 Mar 2023 18:17:49 +0000 From: Mike Christie To: bvanassche@acm.org, hch@lst.de, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, james.bottomley@hansenpartnership.com, linux-block@vger.kernel.org, dm-devel@redhat.com, snitzer@kernel.org, axboe@kernel.dk, linux-nvme@lists.infradead.org, chaitanyak@nvidia.com, kbusch@kernel.org, target-devel@vger.kernel.org Date: Fri, 24 Mar 2023 13:17:25 -0500 Message-Id: <20230324181741.13908-3-michael.christie@oracle.com> In-Reply-To: <20230324181741.13908-1-michael.christie@oracle.com> References: <20230324181741.13908-1-michael.christie@oracle.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-24_11,2023-03-24_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 mlxlogscore=999 spamscore=0 adultscore=0 bulkscore=0 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2303240143 X-Proofpoint-ORIG-GUID: s5ClNg5b_bA0HK9Jp3EX3VU_I7Ofianj X-Proofpoint-GUID: s5ClNg5b_bA0HK9Jp3EX3VU_I7Ofianj X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 X-Mailman-Approved-At: Mon, 27 Mar 2023 05:41:34 +0000 Subject: [dm-devel] [PATCH v5 02/18] block: Rename BLK_STS_NEXUS to BLK_STS_RESV_CONFLICT X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stefan Haberland , Mike Christie Errors-To: dm-devel-bounces@redhat.com Sender: "dm-devel" X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: oracle.com BLK_STS_NEXUS is used for NVMe/SCSI reservation conflicts and DASD's locking feature which works similar to NVMe/SCSI reservations where a host can get a lock on a device and when the lock is taken it will get failures. This patch renames BLK_STS_NEXUS so it better reflects this type of use. Signed-off-by: Mike Christie Acked-by: Stefan Haberland --- block/blk-core.c | 2 +- drivers/nvme/host/core.c | 2 +- drivers/s390/block/dasd.c | 7 ++++++- drivers/scsi/scsi_lib.c | 2 +- include/linux/blk_types.h | 4 ++-- 5 files changed, 11 insertions(+), 6 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 42926e6cb83c..c64db6fcb997 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -155,7 +155,7 @@ static const struct { [BLK_STS_NOSPC] = { -ENOSPC, "critical space allocation" }, [BLK_STS_TRANSPORT] = { -ENOLINK, "recoverable transport" }, [BLK_STS_TARGET] = { -EREMOTEIO, "critical target" }, - [BLK_STS_NEXUS] = { -EBADE, "critical nexus" }, + [BLK_STS_RESV_CONFLICT] = { -EBADE, "reservation conflict" }, [BLK_STS_MEDIUM] = { -ENODATA, "critical medium" }, [BLK_STS_PROTECTION] = { -EILSEQ, "protection" }, [BLK_STS_RESOURCE] = { -ENOMEM, "kernel resource" }, diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index d4be525f8100..d400175c312d 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -279,7 +279,7 @@ static blk_status_t nvme_error_status(u16 status) case NVME_SC_INVALID_PI: return BLK_STS_PROTECTION; case NVME_SC_RESERVATION_CONFLICT: - return BLK_STS_NEXUS; + return BLK_STS_RESV_CONFLICT; case NVME_SC_HOST_PATH_ERROR: return BLK_STS_TRANSPORT; case NVME_SC_ZONE_TOO_MANY_ACTIVE: diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index a9c2a8d76c45..ca0df87fa8f4 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -2723,7 +2723,12 @@ static void __dasd_cleanup_cqr(struct dasd_ccw_req *cqr) else if (status == 0) { switch (cqr->intrc) { case -EPERM: - error = BLK_STS_NEXUS; + /* + * DASD doesn't implement SCSI/NVMe reservations, but it + * implements a locking scheme similar to them. We + * return this error when we no longer have the lock. + */ + error = BLK_STS_RESV_CONFLICT; break; case -ENOLINK: error = BLK_STS_TRANSPORT; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index b7c569a42aa4..e1468483ac7e 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -599,7 +599,7 @@ static blk_status_t scsi_result_to_blk_status(int result) case SCSIML_STAT_OK: break; case SCSIML_STAT_RESV_CONFLICT: - return BLK_STS_NEXUS; + return BLK_STS_RESV_CONFLICT; case SCSIML_STAT_NOSPC: return BLK_STS_NOSPC; case SCSIML_STAT_MED_ERROR: diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 99be590f952f..2b2452086a2f 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -96,7 +96,7 @@ typedef u16 blk_short_t; #define BLK_STS_NOSPC ((__force blk_status_t)3) #define BLK_STS_TRANSPORT ((__force blk_status_t)4) #define BLK_STS_TARGET ((__force blk_status_t)5) -#define BLK_STS_NEXUS ((__force blk_status_t)6) +#define BLK_STS_RESV_CONFLICT ((__force blk_status_t)6) #define BLK_STS_MEDIUM ((__force blk_status_t)7) #define BLK_STS_PROTECTION ((__force blk_status_t)8) #define BLK_STS_RESOURCE ((__force blk_status_t)9) @@ -184,7 +184,7 @@ static inline bool blk_path_error(blk_status_t error) case BLK_STS_NOTSUPP: case BLK_STS_NOSPC: case BLK_STS_TARGET: - case BLK_STS_NEXUS: + case BLK_STS_RESV_CONFLICT: case BLK_STS_MEDIUM: case BLK_STS_PROTECTION: return false;