sched: use show_regs() to improve __schedule_bug() output

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

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 142e1c1..a47b802 100644 (file)
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -9,13 +9,9 @@
  *             <drew@colorado.edu>
  */
 
-#include <linux/config.h>
 #include <linux/types.h>
-#include <linux/major.h>
-#include <linux/device.h>
-#include <linux/smp.h>
-#include <linux/string.h>
-#include <linux/fs.h>
+
+#ifdef CONFIG_BLOCK
 
 enum {
 /* These three have identical behaviour; use the second one if DOS FDISK gets
@@ -24,7 +20,11 @@ enum {
        LINUX_EXTENDED_PARTITION = 0x85,
        WIN98_EXTENDED_PARTITION = 0x0f,
 
+       SUN_WHOLE_DISK = DOS_EXTENDED_PARTITION,
+
        LINUX_SWAP_PARTITION = 0x82,
+       LINUX_DATA_PARTITION = 0x83,
+       LINUX_LVM_PARTITION = 0x8e,
        LINUX_RAID_PARTITION = 0xfd,    /* autodetect RAID partition */
 
        SOLARIS_X86_PARTITION = LINUX_SWAP_PARTITION,
@@ -61,6 +61,13 @@ struct partition {
 #endif
 
 #ifdef __KERNEL__
+#include <linux/major.h>
+#include <linux/device.h>
+#include <linux/smp.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/workqueue.h>
+
 struct partition {
        unsigned char boot_ind;         /* 0x80 - active */
        unsigned char head;             /* starting head */
@@ -78,23 +85,29 @@ struct hd_struct {
        sector_t start_sect;
        sector_t nr_sects;
        struct kobject kobj;
-       unsigned reads, read_sectors, writes, write_sectors;
+       struct kobject *holder_dir;
+       unsigned ios[2], sectors[2];    /* READs and WRITEs */
        int policy, partno;
+#ifdef CONFIG_FAIL_MAKE_REQUEST
+       int make_it_fail;
+#endif
 };
 
 #define GENHD_FL_REMOVABLE                     1
 #define GENHD_FL_DRIVERFS                      2
+#define GENHD_FL_MEDIA_CHANGE_NOTIFY           4
 #define GENHD_FL_CD                            8
 #define GENHD_FL_UP                            16
 #define GENHD_FL_SUPPRESS_PARTITION_INFO       32
+#define GENHD_FL_FAIL                          64
 
 struct disk_stats {
-       unsigned read_sectors, write_sectors;
-       unsigned reads, writes;
-       unsigned read_merges, write_merges;
-       unsigned read_ticks, write_ticks;
-       unsigned io_ticks;
-       unsigned time_in_queue;
+       unsigned long sectors[2];       /* READs and WRITEs */
+       unsigned long ios[2];
+       unsigned long merges[2];
+       unsigned long ticks[2];
+       unsigned long io_ticks;
+       unsigned long time_in_queue;
 };
        
 struct gendisk {
@@ -104,16 +117,17 @@ struct gendisk {
                                          * disks that can't be partitioned. */
        char disk_name[32];             /* name of major driver */
        struct hd_struct **part;        /* [indexed by minor] */
+       int part_uevent_suppress;
        struct block_device_operations *fops;
        struct request_queue *queue;
        void *private_data;
        sector_t capacity;
 
        int flags;
-       char devfs_name[64];            /* devfs crap */
-       int number;                     /* more of the same */
        struct device *driverfs_dev;
        struct kobject kobj;
+       struct kobject *holder_dir;
+       struct kobject *slave_dir;
 
        struct timer_rand_state *random;
        int policy;
@@ -126,12 +140,14 @@ struct gendisk {
 #else
        struct disk_stats dkstats;
 #endif
+       struct work_struct async_notify;
 };
 
 /* Structure for sysfs attributes on block devices */
 struct disk_attribute {
        struct attribute attr;
        ssize_t (*show)(struct gendisk *, char *);
+       ssize_t (*store)(struct gendisk *, const char *, size_t);
 };
 
 /* 
@@ -148,22 +164,16 @@ struct disk_attribute {
 ({                                                                     \
        typeof(gendiskp->dkstats->field) res = 0;                       \
        int i;                                                          \
-       for (i=0; i < NR_CPUS; i++) {                                   \
-               if (!cpu_possible(i))                                   \
-                       continue;                                       \
+       for_each_possible_cpu(i)                                        \
                res += per_cpu_ptr(gendiskp->dkstats, i)->field;        \
-       }                                                               \
        res;                                                            \
 })
 
 static inline void disk_stat_set_all(struct gendisk *gendiskp, int value)      {
        int i;
-       for (i=0; i < NR_CPUS; i++) {
-               if (cpu_possible(i)) {
-                       memset(per_cpu_ptr(gendiskp->dkstats, i), value,        
-                                       sizeof (struct disk_stats));
-               }
-       }
+       for_each_possible_cpu(i)
+               memset(per_cpu_ptr(gendiskp->dkstats, i), value,
+                               sizeof (struct disk_stats));
 }              
                                
 #else
@@ -254,7 +264,7 @@ static inline void set_capacity(struct gendisk *disk, sector_t size)
 
 #ifdef CONFIG_SOLARIS_X86_PARTITION
 
-#define SOLARIS_X86_NUMSLICE   8
+#define SOLARIS_X86_NUMSLICE   16
 #define SOLARIS_X86_VTOC_SANE  (0x600DDEEEUL)
 
 struct solaris_x86_slice {
@@ -397,17 +407,22 @@ struct unixware_disklabel {
 
 #ifdef __KERNEL__
 
+#define ADDPART_FLAG_NONE      0
+#define ADDPART_FLAG_RAID      1
+#define ADDPART_FLAG_WHOLEDISK 2
+
 char *disk_name (struct gendisk *hd, int part, char *buf);
 
 extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev);
-extern void add_partition(struct gendisk *, int, sector_t, sector_t);
+extern void add_partition(struct gendisk *, int, sector_t, sector_t, int);
 extern void delete_partition(struct gendisk *, int);
+extern void printk_all_partitions(void);
 
 extern struct gendisk *alloc_disk_node(int minors, int node_id);
 extern struct gendisk *alloc_disk(int minors);
 extern struct kobject *get_disk(struct gendisk *disk);
 extern void put_disk(struct gendisk *disk);
-
+extern void genhd_media_change_notify(struct gendisk *disk);
 extern void blk_register_region(dev_t dev, unsigned long range,
                        struct module *module,
                        struct kobject *(*probe)(dev_t, int *, void *),
@@ -422,4 +437,10 @@ static inline struct block_device *bdget_disk(struct gendisk *disk, int index)
 
 #endif
 
+#else /* CONFIG_BLOCK */
+
+static inline void printk_all_partitions(void) { }
+
+#endif /* CONFIG_BLOCK */
+
 #endif