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Fri, 3 Jun 2022 06:55:59 +0000 Received: from DM5PR10MB1466.namprd10.prod.outlook.com ([fe80::f81d:b8ef:c5a4:9c9b]) by DM5PR10MB1466.namprd10.prod.outlook.com ([fe80::f81d:b8ef:c5a4:9c9b%3]) with mapi id 15.20.5293.019; Fri, 3 Jun 2022 06:55:53 +0000 From: Mike Christie To: linux-block@vger.kernel.org, dm-devel@redhat.com, snitzer@kernel.org, hch@lst.de, axboe@kernel.dk, martin.petersen@oracle.com, james.bottomley@hansenpartnership.com, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org Cc: Mike Christie Subject: [PATCH 09/11] block, nvme: Add error for reservation conflicts. 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For the pr_ops use we want to know if an IO failed for specifically a reservation conflict so we can report that error upwards to a VM. This patch adds a new error code for this case and converts nvme. The next patch converts scsi because it's a little more complicated. Signed-off-by: Mike Christie --- block/blk-core.c | 1 + drivers/nvme/host/core.c | 2 +- include/linux/blk_types.h | 4 ++++ 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index bc0506772152..3908ac4a70b6 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -171,6 +171,7 @@ static const struct { /* zone device specific errors */ [BLK_STS_ZONE_OPEN_RESOURCE] = { -ETOOMANYREFS, "open zones exceeded" }, [BLK_STS_ZONE_ACTIVE_RESOURCE] = { -EOVERFLOW, "active zones exceeded" }, + [BLK_STS_RSV_CONFLICT] = { -EBADE, "resevation conflict" }, /* everything else not covered above: */ [BLK_STS_IOERR] = { -EIO, "I/O" }, diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index e1846d04817f..9b77d8eb480c 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -268,7 +268,7 @@ 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_RSV_CONFLICT; case NVME_SC_HOST_PATH_ERROR: return BLK_STS_TRANSPORT; case NVME_SC_ZONE_TOO_MANY_ACTIVE: diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 1973ef9bd40f..927d9d30e1df 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -162,6 +162,9 @@ typedef u16 blk_short_t; */ #define BLK_STS_OFFLINE ((__force blk_status_t)17) +/* NVMe/SCSI reservation conflict. */ +#define BLK_STS_RSV_CONFLICT ((__force blk_status_t)18) + /** * blk_path_error - returns true if error may be path related * @error: status the request was completed with @@ -183,6 +186,7 @@ static inline bool blk_path_error(blk_status_t error) case BLK_STS_NEXUS: case BLK_STS_MEDIUM: case BLK_STS_PROTECTION: + case BLK_STS_RSV_CONFLICT: return false; } -- 2.25.1