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Subject[PATCH 0/4] THP: page collapsing vs. poisoning
This patch set will improve system availability by allowing us to
avoid system panic in some special cases during page collapsing:
replacing a chunk of normal pages by a THP(Transparent Huge Page).

Hidetoshi Seto (4):
Lock the new THP when collapsing pages
Free the collapsed pages after the new THP is mapped.
Check whether pages are poisoned before copying
Check whether the new THP is poisoned before it is mapped to APL.

mm/huge_memory.c | 75 ++++++++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 65 insertions(+), 10 deletions(-)




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