>>> On 03.11.15 at 18:58, <malcolm.cross...@citrix.com> wrote:
> --- a/xen/common/grant_table.c
> +++ b/xen/common/grant_table.c
> @@ -178,6 +178,10 @@ struct active_grant_entry {
> #define _active_entry(t, e) \
> ((t)->active[(e)/ACGNT_PER_PAGE][(e)%ACGNT_PER_PAGE])
>
> +bool_t grant_rwlock_barrier;
> +
> +DEFINE_PER_CPU(rwlock_t *, grant_rwlock);
Shouldn't these be per grant table? And wouldn't doing so eliminate
the main limitation of the per-CPU rwlocks?
Jan
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