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    SubjectRe: [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/ |
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