plus on i386 the fix below is needed as well.
Ingo
---
include/asm-i386/highmem.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
Index: linux/include/asm-i386/highmem.h
===================================================================
--- linux.orig/include/asm-i386/highmem.h
+++ linux/include/asm-i386/highmem.h
@@ -81,9 +81,9 @@ struct page *__kmap_atomic_to_page(void
* on PREEMPT_RT kmap_atomic() is a wrapper that uses kmap():
*/
#ifdef CONFIG_PREEMPT_RT
-# define kmap_atomic(page, type) kmap(page)
-# define kmap_atomic_pfn(pfn, type) kmap(pfn_to_page(pfn))
-# define kunmap_atomic(kvaddr, type) kunmap_virt(kvaddr)
+# define kmap_atomic(page, type) ({ pagefault_disable(); kmap(page); })
+# define kmap_atomic_pfn(pfn, type) kmap_atomic(pfn_to_page(pfn), type)
+# define kunmap_atomic(kvaddr, type) do { pagefault_enable();
kunmap_virt(kvaddr); } while (0)
# define kmap_atomic_to_page(kvaddr) kmap_to_page(kvaddr)
#else
# define kmap_atomic(page, type) __kmap_atomic(page, type)
-
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