allow userspace to modify scsi command filter on per device basis

[safe/jmp/linux-2.6] / include / linux / genhd.h

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 524ec96..e878741 100644 (file)
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -110,6 +110,14 @@ struct hd_struct {
 #define GENHD_FL_SUPPRESS_PARTITION_INFO       32
 #define GENHD_FL_FAIL                          64
 
+#define BLK_SCSI_MAX_CMDS      (256)
+#define BLK_SCSI_CMD_PER_LONG  (BLK_SCSI_MAX_CMDS / (sizeof(long) * 8))
+
+struct blk_scsi_cmd_filter {
+       unsigned long read_ok[BLK_SCSI_CMD_PER_LONG];
+       unsigned long write_ok[BLK_SCSI_CMD_PER_LONG];
+       struct kobject kobj;
+};
 
 struct gendisk {
        int major;                      /* major number of driver */
@@ -120,6 +128,7 @@ struct gendisk {
        struct hd_struct **part;        /* [indexed by minor] */
        struct block_device_operations *fops;
        struct request_queue *queue;
+       struct blk_scsi_cmd_filter cmd_filter;
        void *private_data;
        sector_t capacity;