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block: move policy from disk to part0

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Move disk->policy to part0->policy.  Implement and use get_disk_ro().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Tejun Heo
2008-08-25 19:56:10 +09:00
committed by Jens Axboe
parent e561052149
commit b7db9956e5
5 changed files with 13 additions and 15 deletions
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6
include/linux/genhd.h
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@@ -145,7 +145,6 @@ struct gendisk {
struct kobject *slave_dir;
struct timer_rand_state *random;
int policy;
atomic_t sync_io; /* RAID */
unsigned long stamp;
@@ -403,6 +402,11 @@ extern struct block_device *bdget_disk(struct gendisk *disk, int partno);
extern void set_device_ro(struct block_device *bdev, int flag);
extern void set_disk_ro(struct gendisk *disk, int flag);
static inline int get_disk_ro(struct gendisk *disk)
{
return disk->part0.policy;
}
/* drivers/char/random.c */
extern void add_disk_randomness(struct gendisk *disk);
extern void rand_initialize_disk(struct gendisk *disk);