On 25/10/2018 17:43, Dave Hansen wrote:
+static bool is_address_protected(void *p)
+{
+ struct page *page;
+ struct vmap_area *area;
+
+ if (unlikely(!is_vmalloc_addr(p)))
+ return false;
+ page = vmalloc_to_page(p);
+ if (unlikely(!page))
+
> +static bool is_address_protected(void *p)
> +{
> + struct page *page;
> + struct vmap_area *area;
> +
> + if (unlikely(!is_vmalloc_addr(p)))
> + return false;
> + page = vmalloc_to_page(p);
> + if (unlikely(!page))
> + return false;
> + wmb(); /* F
Hi,
On 24/10/18 06:27, Randy Dunlap wrote:
a. It seems backwards (or upside down) to have a test case select a feature
(PRMEM)
instead of depending on that feature.
b. Since PRMEM depends on MMU (in patch 04/17), the "select" here could try to
enabled PRMEM even when MMU is not enabled.
Chan
On 10/23/18 2:34 PM, Igor Stoppa wrote:
> diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
> index 9a7b8b049d04..57de5b3c0bae 100644
> --- a/mm/Kconfig.debug
> +++ b/mm/Kconfig.debug
> @@ -94,3 +94,12 @@ config DEBUG_RODATA_TEST
> depends on STRICT_KERNEL_RWX
> ---help---
>This op
The test cases verify the various interfaces offered by both prmem.h and
prmemextra.h
The tests avoid triggering crashes, by not performing actions that would
be treated as illegal. That part is handled in the lkdtm patch.
Signed-off-by: Igor Stoppa
CC: Michal Hocko
CC: Vlastimil Babka
CC: "Ki
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