On Thu, Apr 30, 2020 at 01:38:44PM -0700, ira.weiny@xxxxxxxxx wrote:
> -static inline void *kmap_atomic(struct page *page)
> +static inline void *kmap_atomic_prot(struct page *page, pgprot_t prot)
> {
> preempt_disable();
> pagefault_disable();
> if (!PageHighMem(page))
> return page_address(page);
> - return kmap_atomic_high(page);
> + return kmap_atomic_high_prot(page, prot);
> }
> +#define kmap_atomic(page) kmap_atomic_prot(page, kmap_prot)
OK, so it *was* just a bisect hazard - you return to original semantics
wrt preempt_disable()...
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