[libata] Disable FUA

Until problems are sorted.

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 5f1d7580218dde548ccd0d8ba4f71589ed5efcc6..4f91b0dc572bb5b1aea66a6aed56df874808eac8 100644 (file)
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -82,6 +82,10 @@ int atapi_enabled = 0;
 module_param(atapi_enabled, int, 0444);
 MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)");
 
+int libata_fua = 0;
+module_param_named(fua, libata_fua, int, 0444);
+MODULE_PARM_DESC(fua, "FUA support (0=off, 1=on)");
+
 MODULE_AUTHOR("Jeff Garzik");
 MODULE_DESCRIPTION("Library module for ATA devices");
 MODULE_LICENSE("GPL");

diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 07b1e7cc61dfcbc0ab5ce762be6d83ecb4f1f1db..59503c9ccac9ff794a66d29c358f4d98c4b33ed0 100644 (file)
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -1708,6 +1708,8 @@ static int ata_dev_supports_fua(u16 *id)
 {
        unsigned char model[41], fw[9];
 
+       if (!libata_fua)
+               return 0;
        if (!ata_id_has_fua(id))
                return 0;
 

diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index e03ce48b7b4b633c8752319470cdb56105054659..fddaf479a5440ff08c12d6e22c49f9e373814731 100644 (file)
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -41,6 +41,7 @@ struct ata_scsi_args {
 
 /* libata-core.c */
 extern int atapi_enabled;
+extern int libata_fua;
 extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
                                      struct ata_device *dev);
 extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);