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Re: [Qemu-devel] [PATCH for-2.10 5/9] block: introduce bdrv_try_set_read
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH for-2.10 5/9] block: introduce bdrv_try_set_read_only() |
Date: |
Fri, 7 Apr 2017 10:18:22 +0100 |
User-agent: |
Mutt/1.8.0 (2017-02-23) |
On Wed, Apr 05, 2017 at 08:23:12PM -0400, Jeff Cody wrote:
> On Wed, Apr 05, 2017 at 04:28:44PM -0400, John Snow wrote:
> > On 04/05/2017 02:28 PM, Jeff Cody wrote:
> > > diff --git a/include/block/block.h b/include/block/block.h
> > > index beb563a..0049b57 100644
> > > --- a/include/block/block.h
> > > +++ b/include/block/block.h
> > > @@ -426,6 +426,7 @@ int bdrv_is_allocated_above(BlockDriverState *top,
> > > BlockDriverState *base,
> > > int64_t sector_num, int nb_sectors, int
> > > *pnum);
> > >
> > > bool bdrv_is_read_only(BlockDriverState *bs);
> > > +int bdrv_try_set_read_only(BlockDriverState *bs, bool read_only, Error
> > > **errp);
> > > int bdrv_set_read_only(BlockDriverState *bs, bool read_only, Error
> > > **errp);
> > > bool bdrv_is_sg(BlockDriverState *bs);
> > > bool bdrv_is_inserted(BlockDriverState *bs);
> > >
> >
> > Maybe I'm just green, but I find it weird that the function is named
> > try_x when we aren't actually trying to do anything, we're checking to
> > see if we can.
>
> Yeah, not a good name. Maybe bdrv_set_read_only_test() or
> bdrv_test_set_read_only()?
This one reads nicely:
if (bdrv_can_set_read_only(...)) {
...
}
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