• Tony Luck's avatar
    mm, page_alloc: Add missing check for memory holes · b4fb8f66
    Tony Luck authored
    Commit 13ad59df ("mm, page_alloc: avoid page_to_pfn() when merging
    buddies") moved the check for memory holes out of page_is_buddy() and
    had the callers do the check.
    
    But this wasn't done correctly in one place which caused ia64 to crash
    very early in boot.
    
    Update to fix that and make ia64 boot again.
    
    [ v2: Vlastimil pointed out we don't need to call page_to_pfn()
          since we already have the result of that in "buddy_pfn" ]
    
    Fixes: 13ad59df ("avoid page_to_pfn() when merging buddies")
    Cc: Mel Gorman <mgorman@techsingularity.net>
    Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
    Cc: Michal Hocko <mhocko@kernel.org>
    Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
    Cc: Johannes Weiner <hannes@cmpxchg.org>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    b4fb8f66
page_alloc.c 208 KB