Re: finding 'struct vfsmount' by given 'struct super_block'

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On 8 May 2000, Trond Myklebust wrote:

> >>>>> " " == Tigran Aivazian <tigran@veritas.com> writes:
>
> > mnt = list_entry(sb->s_mounts, struct vfsmount,
> > mnt_instances);
>
> > then it won't compile because of "cannot convert to a pointer
> > type" error.
>
> That's because s_mounts is the list head. If it is empty, then
> s_mounts.next == s_mounts.prev == &s_mounts
> if not then s_mounts.next points to the first mount instance.
>
> i.e. you need something like
>
> if (!list_empty(&sb->s_mounts))
> mnt = list_entry(sb->s_mounts.next, struct vfsmount, mnt_instances);

Thanks, this worked!

Regards,
Tigran

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