aboutsummaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
Diffstat (limited to 'include')
-rw-r--r--include/linux/genhd.h19
1 files changed, 18 insertions, 1 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index c90e1b4fbe5..ecf649c3dee 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -113,6 +113,21 @@ struct hd_struct {
#define GENHD_FL_UP 16
#define GENHD_FL_SUPPRESS_PARTITION_INFO 32
+#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 disk_part_tbl {
+ struct rcu_head rcu_head;
+ int len;
+ struct hd_struct *part[];
+};
+
struct gendisk {
/* major, first_minor, minors and ext_minors are input
* parameters only, don't use directly. Use disk_devt() and
@@ -131,7 +146,7 @@ struct gendisk {
* non-critical accesses use RCU. Always access through
* helpers.
*/
- struct hd_struct **__part;
+ struct disk_part_tbl *part_tbl;
struct hd_struct part0;
struct block_device_operations *fops;
@@ -149,6 +164,7 @@ struct gendisk {
#ifdef CONFIG_BLK_DEV_INTEGRITY
struct blk_integrity *integrity;
#endif
+ int node_id;
};
static inline struct gendisk *part_to_disk(struct hd_struct *part)
@@ -503,6 +519,7 @@ extern void blk_free_devt(dev_t devt);
extern dev_t blk_lookup_devt(const char *name, int partno);
extern char *disk_name (struct gendisk *hd, int partno, char *buf);
+extern int disk_expand_part_tbl(struct gendisk *disk, int target);
extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev);
extern int __must_check add_partition(struct gendisk *, int, sector_t, sector_t, int);
extern void delete_partition(struct gendisk *, int);