On Thu, Mar 05, 2009 at 01:12:32PM +0100, Joerg Roedel wrote:
> The function uses kmap_atomic. Calling it with preemption enabled is
> racy.
kmap_atomic disables preemption?
void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
{
enum fixed_addresses idx;
unsigned long vaddr;
/* even !CONFIG_PREEMPT needs this, for in_atomic in * do_page_fault */
pagefault_disable();
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