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| author | Miaohe Lin <[email protected]> | 2022-03-22 21:44:50 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2022-03-22 22:57:07 +0000 |
| commit | bf6445bc8f778590ac754b06a8fe82ce5a9f818a (patch) | |
| tree | 82281f9f7d16d986d8ddf9a926d52455ecedb5d9 /mm/sparse-vmemmap.c | |
| parent | mm/memory-failure.c: avoid calling invalidate_inode_page() with unexpected pages (diff) | |
| download | kernel-bf6445bc8f778590ac754b06a8fe82ce5a9f818a.tar.gz kernel-bf6445bc8f778590ac754b06a8fe82ce5a9f818a.zip | |
mm/memory-failure.c: make non-LRU movable pages unhandlable
We can not really handle non-LRU movable pages in memory failure.
Typically they are balloon, zsmalloc, etc.
Assuming we run into a base (4K) non-LRU movable page, we could reach as
far as identify_page_state(), it should not fall into any category
except me_unknown.
For the non-LRU compound movable pages, they could be taken for
transhuge pages but it's unexpected to split non-LRU movable pages using
split_huge_page_to_list in memory_failure. So we could just simply make
non-LRU movable pages unhandlable to avoid these possible nasty cases.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Miaohe Lin <[email protected]>
Suggested-by: Yang Shi <[email protected]>
Reviewed-by: Yang Shi <[email protected]>
Acked-by: Naoya Horiguchi <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Tony Luck <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'mm/sparse-vmemmap.c')
0 files changed, 0 insertions, 0 deletions