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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-07-12 16:32:07 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-12 11:30:56 -0700 |
| commit | 79789db03fdd77510cfb35cb4b3bd52b6c50c901 (patch) | |
| tree | 44e6aba4c3735b180392437ef0d71f08a47337ee /fs/configfs | |
| parent | efdb6720b44b2f016d2a04b2c84e577e57ed84bd (diff) | |
| download | linux-79789db03fdd77510cfb35cb4b3bd52b6c50c901.tar.bz2 | |
mm: Make copy_huge_page() always available
Rewrite copy_huge_page() and move it into mm/util.c so it's always
available. Fixes an exposure of uninitialised memory on configurations
with HUGETLB and UFFD enabled and MIGRATION disabled.
Fixes: 8cc5fcbb5be8 ("mm, hugetlb: fix racy resv_huge_pages underflow on UFFDIO_COPY")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/configfs')
0 files changed, 0 insertions, 0 deletions