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authorTejun Heo <tj@kernel.org>2008-08-25 14:56:10 +0400
committerJens Axboe <jens.axboe@oracle.com>2008-10-09 10:56:07 +0400
commitb7db9956e57c8151b930d5e5fe5c766e6aad3ff7 (patch)
treed663a8687fff481abb1498c2ea0eac01ef81cb26 /block/genhd.c
parente56105214943ce5f0901d20e972a7cfd0d1d0656 (diff)
downloadlinux-b7db9956e57c8151b930d5e5fe5c766e6aad3ff7.tar.xz
block: move policy from disk to part0
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>
Diffstat (limited to 'block/genhd.c')
-rw-r--r--block/genhd.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/block/genhd.c b/block/genhd.c
index c70db35076a0..70358f3c7423 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -757,7 +757,7 @@ static ssize_t disk_ro_show(struct device *dev,
{
struct gendisk *disk = dev_to_disk(dev);
- return sprintf(buf, "%d\n", disk->policy ? 1 : 0);
+ return sprintf(buf, "%d\n", get_disk_ro(disk) ? 1 : 0);
}
static ssize_t disk_capability_show(struct device *dev,
@@ -1090,10 +1090,7 @@ EXPORT_SYMBOL(put_disk);
void set_device_ro(struct block_device *bdev, int flag)
{
- if (bdev->bd_contains != bdev)
- bdev->bd_part->policy = flag;
- else
- bdev->bd_disk->policy = flag;
+ bdev->bd_part->policy = flag;
}
EXPORT_SYMBOL(set_device_ro);
@@ -1103,8 +1100,8 @@ void set_disk_ro(struct gendisk *disk, int flag)
struct disk_part_iter piter;
struct hd_struct *part;
- disk->policy = flag;
- disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
+ disk_part_iter_init(&piter, disk,
+ DISK_PITER_INCL_EMPTY | DISK_PITER_INCL_PART0);
while ((part = disk_part_iter_next(&piter)))
part->policy = flag;
disk_part_iter_exit(&piter);
@@ -1116,10 +1113,7 @@ int bdev_read_only(struct block_device *bdev)
{
if (!bdev)
return 0;
- else if (bdev->bd_contains != bdev)
- return bdev->bd_part->policy;
- else
- return bdev->bd_disk->policy;
+ return bdev->bd_part->policy;
}
EXPORT_SYMBOL(bdev_read_only);