Re: [PATCH 3/4] Do not allow umounting of frozen filesystems

[Fernando Luis Vazquez Cao]

Eric Sandeen ãããæãããã:
> Al Viro wrote:
> ...
>
>   
> > IOW, I'd rather add two new ioctls (check if frozen/thaw), both by
> > bdev.  On top of the first two patches in this set.
> >     
>
>   
> > Comments?
> >     
>
> The check ioctls would be very very useful, IMHO.  Many filesystem tools
> refuse to operate on a mounted filesystem, but in some cases it'd be
> safe to do readonly operations on a frozen, mounted fs.
>   

Yep, and HA software would benefit from the check ioctls too.

- Fernando
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