[SCSI] Log thin provisioning threshold event

At least log the message that we received a THIN PROVISIONING SOFT
THRESHOLD REACHED Unit Attention.  Also added it to unit attention
decodes.

Signed-off-by: Shyam Iyer <shyam_iyer@dell.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index d0c8234..60d2ef2 100644 (file)
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -772,6 +772,7 @@ static const struct error_info additional[] =
        {0x3802, "Esn - power management class event"},
        {0x3804, "Esn - media class event"},
        {0x3806, "Esn - device busy class event"},
+       {0x3807, "Thin Provisioning soft threshold reached"},
 
        {0x3900, "Saving parameters not supported"},
 

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 633c239..abea2cf 100644 (file)
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -321,6 +321,12 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
                                    "changed. The Linux SCSI layer does not "
                                    "automatically adjust these parameters.\n");
 
+               if (sshdr.asc == 0x38 && sshdr.ascq == 0x07)
+                       scmd_printk(KERN_WARNING, scmd,
+                                   "Warning! Received an indication that the "
+                                   "LUN reached a thin provisioning soft "
+                                   "threshold.\n");
+
                /*
                 * Pass the UA upwards for a determination in the completion
                 * functions.