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That example was added in 2008. In 2015, we restricted access to the PFNs in the pagemap to CAP_SYS_ADMIN, making that approach quite less usable. It's 2024 now, and using that racy and low-lewel mechanism to calculate the USS should not be considered a good example anymore. /proc/$pid/smaps and /proc/$pid/smaps_rollup can do a much better job without any of that low-level handling. Let's just drop that example. Link: https://lkml.kernel.org/r/20240607122357.115423-7-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Lance Yang <ioworker0@gmail.com> Cc: Oscar Salvador <osalvador@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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| .. | ||
| damon | ||
| cma_debugfs.rst | ||
| concepts.rst | ||
| hugetlbpage.rst | ||
| idle_page_tracking.rst | ||
| index.rst | ||
| ksm.rst | ||
| memory-hotplug.rst | ||
| multigen_lru.rst | ||
| nommu-mmap.rst | ||
| numa_memory_policy.rst | ||
| numaperf.rst | ||
| pagemap.rst | ||
| shrinker_debugfs.rst | ||
| soft-dirty.rst | ||
| swap_numa.rst | ||
| transhuge.rst | ||
| userfaultfd.rst | ||
| zswap.rst | ||