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authorKefeng Wang <[email protected]>2024-09-06 10:42:01 +0800
committerAndrew Morton <[email protected]>2024-09-17 01:07:00 -0700
commit658be46520ce480a44fe405730a1725166298f27 (patch)
tree00abecaf0c8366e9d310f9d8cc22befe835ca152 /tools/perf/scripts/python
parentaa549f923f5e037a459dcd588932db9abfa8c158 (diff)
mm: support poison recovery from copy_present_page()
Similar to other poison recovery, use copy_mc_user_highpage() to avoid potentially kernel panic during copy page in copy_present_page() from fork, once copy failed due to hwpoison in source page, we need to break out of copy in copy_pte_range() and release prealloc folio, so copy_mc_user_highpage() is moved ahead before set *prealloc to NULL. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Kefeng Wang <[email protected]> Reviewed-by: Jane Chu <[email protected]> Reviewed-by: Miaohe Lin <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: Jiaqi Yan <[email protected]> Cc: Naoya Horiguchi <[email protected]> Cc: Tony Luck <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
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