Messages in this thread | | | From | Xin Hao <> | Subject | Re: [PATCH] proc: export page young and skip_kasan_poison flag via kpageflags | Date | Sun, 5 Jun 2022 13:25:00 +0800 |
| |
Hi, Matthew:
On 6/4/22 11:08 PM, Matthew Wilcox wrote: > On Sat, Jun 04, 2022 at 05:50:31PM +0800, Xin Hao wrote: >> On 6/3/22 2:28 AM, Matthew Wilcox wrote: >>> On Thu, Jun 02, 2022 at 11:43:02PM +0800, Xin Hao wrote: >>>> Now the young and skip_kasan_poison flag are supported in >>> Why do we want userspace to know about whether skip_kasan_poison is set? >>> That seems like a kernel-internal detail to me. >> the skip_kasan_poison also a page flags, we use page_types tool to display >> them not only include user-internal, >> >> but also kernel-internal, add them, the page-types tool can more detail >> display the kernel-internal page flags, >> >> just in case we don't miss some page flags when check the whole memory. > So you're just being completist? You don't have a reason to expose this > information?
Yes, about the skip_kasan_poison, i just want the kpageflags to support it, i think it should be included,
the mainly region is i want get the page node info from the kpageflags in my next patch, when i check these
codes, i see there lost some info about the skip_kasan_poison and young flags, the page_types tool also check
the kasan pages, so i think it should be included.
Thanks.
-- Best Regards! Xin Hao
| |