Christoph Lameter wrote:
> On Thu, 10 Oct 2013, Kirill A. Shutemov wrote:
>
> > +static inline bool ptlock_alloc(struct page *page)
> > +{
> > + if (sizeof(spinlock_t) > sizeof(page->ptl))
> > + return __ptlock_alloc(page);
> > + return true;
> > +}
>
> Could you make the check a CONFIG option?
> CONFIG_PTLOCK_DOES_NOT_FIT_IN_PAGE_STRUCT or
> so?
No. We will have to track what affects sizeof(spinlock_t) manually.
Not a fun and error prune.
C sucks. ;)
--
Kirill A. Shutemov
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