Messages in this thread | | | Date | Fri, 7 Aug 2009 22:54:11 +0200 | From | Uwe Kleine-König <> | Subject | Re: [PATCH 6/6] [ARM] Use atomic_spin_lock/atomic_spin_unlock for irqdesc lock |
| |
Hello,
> diff --git a/mm/highmem.c b/mm/highmem.c > index 66e915a..214eefd 100644 > --- a/mm/highmem.c > +++ b/mm/highmem.c > @@ -372,8 +372,8 @@ void *kmap_high_get(struct page *page) > lock_kmap_any(flags); > vaddr = (unsigned long)page_address(page); > if (vaddr) { > - BUG_ON(pkmap_count[PKMAP_NR(vaddr)] < 1); > - pkmap_count[PKMAP_NR(vaddr)]++; > + BUG_ON(atomic_read(&pkmap_count[PKMAP_NR(vaddr)]) < 1); > + atomic_add(1, pkmap_count[PKMAP_NR(vaddr)]); > } > unlock_kmap_any(flags); > return (void*) vaddr; ups, this hunk doesn't belong here. I will follow up with a corrected patch.
Sorry Uwe
-- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |