[SCSI] return ENOSPC on thin provisioning failure

When the thin provisioning hard threshold is reached we
should return ENOSPC to inform upper layers about this fact.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/block/blk-core.c b/block/blk-core.c
index 93a18d1d3da8..68ce4d53a528 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2318,6 +2318,9 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
                 case -ETIMEDOUT:
                         error_type = "timeout";
                         break;
+                case -ENOSPC:
+                        error_type = "critical space allocation";
+                        break;
                 case -EIO:
                 default:
                         error_type = "I/O";