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bdev: move ->bd_read_only to ->__bd_flags

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2024-04-12 01:15:55 -04:00
parent 1116b9fa15
commit 01e198f01d
3 changed files with 7 additions and 4 deletions
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5
block/ioctl.c
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@ -402,7 +402,10 @@ static int blkdev_roset(struct block_device *bdev, unsigned cmd,
if (ret)
return ret;
}
bdev->bd_read_only = n;
if (n)
bdev_set_flag(bdev, BD_READ_ONLY);
else
bdev_clear_flag(bdev, BD_READ_ONLY);
return 0;
}

2
include/linux/blk_types.h
View file

@ -47,7 +47,7 @@ struct block_device {
unsigned long bd_stamp;
atomic_t __bd_flags; // partition number + flags
#define BD_PARTNO 255 // lower 8 bits; assign-once
bool bd_read_only; /* read-only policy */
#define BD_READ_ONLY (1u<<8) // read-only policy
bool bd_write_holder;
bool bd_has_submit_bio;
dev_t bd_dev;

4
include/linux/blkdev.h
View file

@ -742,13 +742,13 @@ static inline void bdev_clear_flag(struct block_device *bdev, unsigned flag)
static inline int get_disk_ro(struct gendisk *disk)
{
return disk->part0->bd_read_only ||
return bdev_test_flag(disk->part0, BD_READ_ONLY) ||
test_bit(GD_READ_ONLY, &disk->state);
}
static inline int bdev_read_only(struct block_device *bdev)
{
return bdev->bd_read_only || get_disk_ro(bdev->bd_disk);
return bdev_test_flag(bdev, BD_READ_ONLY) || get_disk_ro(bdev->bd_disk);
}
bool set_capacity_and_notify(struct gendisk *disk, sector_t size);