get_unmapped_area handles MAP_FIXED on sparc64

Handle MAP_FIXED in hugetlb_get_unmapped_area on sparc64 by just using
prepare_hugepage_range()

Signed-off-by: Benjamin Herrenschmidt <[email protected]>
Acked-by: William Irwin <[email protected]>
Cc: "David S. Miller" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c
index 00677b5e1d7d0c15f0e82eec83e18ac07d900400..e224a94e6a1b609916f4ad3aa589f7a934f4fff1 100644 (file)
--- a/arch/sparc64/mm/hugetlbpage.c
+++ b/arch/sparc64/mm/hugetlbpage.c
@@ -175,6 +175,12 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
        if (len > task_size)
                return -ENOMEM;
 
+       if (flags & MAP_FIXED) {
+               if (prepare_hugepage_range(addr, len, pgoff))
+                       return -EINVAL;
+               return addr;
+       }
+
        if (addr) {
                addr = ALIGN(addr, HPAGE_SIZE);
                vma = find_vma(mm, addr);