get_unmapped_area handles MAP_FIXED on i386
Handle MAP_FIXED in i386 hugetlb_get_unmapped_area(), just call
prepare_hugepage_range.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: William Irwin <bill.irwin@oracle.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Adam Litke <agl@us.ibm.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/i386/mm/hugetlbpage.c b/arch/i386/mm/hugetlbpage.c
index 34728e4..6272a4f 100644
--- a/arch/i386/mm/hugetlbpage.c
+++ b/arch/i386/mm/hugetlbpage.c
@@ -367,6 +367,12 @@
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);