diff options
| author | Wei Yang <richardw.yang@linux.intel.com> | 2020-01-30 22:14:29 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-11 07:53:08 +0100 |
| commit | b259672e3ae1699b3b91423505afa19ebd98c59d (patch) | |
| tree | dc604d28bc2ec4184671f1f239357e301b505e77 /mm | |
| parent | c628c4674d5912946aa2af6f68dcab52a9de49cd (diff) | |
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 f32f73fa5d3a..5fbd77d52602 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2095,7 +2095,7 @@ 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(!PageSwapBacked(page), page); VM_BUG_ON_PAGE(!PageCompound(page), page); |