On 2020/11/6 22:08, Christoph Hellwig wrote: > > When setting the whole device read-only (or clearing the read-only > state), also update the policy for all partitions. The s390 dasd > driver has awlways been doing this and it makes a lot of sense. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> Acked-by: Coly Li <colyli@xxxxxxx> Thanks. Coly Li > --- > block/ioctl.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/block/ioctl.c b/block/ioctl.c > index 6b785181344fe1..22f394d118c302 100644 > --- a/block/ioctl.c > +++ b/block/ioctl.c > @@ -354,7 +354,10 @@ static int blkdev_roset(struct block_device *bdev, fmode_t mode, > if (ret) > return ret; > } > - bdev->bd_part->policy = n; > + if (bdev_is_partition(bdev)) > + bdev->bd_part->policy = n; > + else > + set_disk_ro(bdev->bd_disk, n); > return 0; > } > >
