diff options
| author | Wei Yang <richardw.yang@linux.intel.com> | 2020-01-31 09:14:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-05 18:42:23 +0300 |
| commit | e1b49dd476cb6742fee960db0f990d73647ef351 (patch) | |
| tree | 0641d722e249ac5c6d0230b76c173e679f840432 /mm | |
| parent | 3155c63955b3b57f36a290b5980b6aa6c0d17afd (diff) | |
| download | linux-e1b49dd476cb6742fee960db0f990d73647ef351.tar.xz | |
mm/huge_memory.c: use head to check huge zero page
commit cb829624867b5ab10bc6a7036d183b1b82bfe9f8 upstream.
The page could be a tail page, if this is the case, this BUG_ON will
never be triggered.
Link: http://lkml.kernel.org/r/20200110032610.26499-1-richardw.yang@linux.intel.com
Fixes: e9b61f19858a ("thp: reintroduce split_huge_page()")
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/huge_memory.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 5bb93cf18009..fba935c5a59a 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2661,7 +2661,7 @@ int split_huge_page_to_list(struct page *page, struct list_head *list) unsigned long flags; pgoff_t end; - VM_BUG_ON_PAGE(is_huge_zero_page(page), page); + VM_BUG_ON_PAGE(is_huge_zero_page(head), head); VM_BUG_ON_PAGE(!PageLocked(page), page); VM_BUG_ON_PAGE(!PageCompound(page), page); |