diff options
Diffstat (limited to 'drivers/scsi/scsi_error.c')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 08ed506e605..7ad53fa4276 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -16,6 +16,7 @@ #include <linux/module.h> #include <linux/sched.h> +#include <linux/gfp.h> #include <linux/timer.h> #include <linux/string.h> #include <linux/kernel.h> @@ -301,7 +302,20 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) if (scmd->device->allow_restart && (sshdr.asc == 0x04) && (sshdr.ascq == 0x02)) return FAILED; - return SUCCESS; + + if (blk_barrier_rq(scmd->request)) + /* + * barrier requests should always retry on UA + * otherwise block will get a spurious error + */ + return NEEDS_RETRY; + else + /* + * for normal (non barrier) commands, pass the + * UA upwards for a determination in the + * completion functions + */ + return SUCCESS; /* these three are not supported */ case COPY_ABORTED: |