[IA64] Add API for allocating Dynamic TR resource.

[safe/jmp/linux-2.6] / arch / ia64 / mm / hugetlbpage.c

diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index c7c90f4..d3ce8f3 100644 (file)
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -13,9 +13,9 @@
 #include <linux/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/pagemap.h>
-#include <linux/smp_lock.h>
 #include <linux/slab.h>
 #include <linux/sysctl.h>
+#include <linux/log2.h>
 #include <asm/mman.h>
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
@@ -75,10 +75,8 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep)
  * Don't actually need to do any preparation, but need to make sure
  * the address is in the right region.
  */
-int prepare_hugepage_range(unsigned long addr, unsigned long len, pgoff_t pgoff)
+int prepare_hugepage_range(unsigned long addr, unsigned long len)
 {
-       if (pgoff & (~HPAGE_MASK >> PAGE_SHIFT))
-               return -EINVAL;
        if (len & ~HPAGE_MASK)
                return -EINVAL;
        if (addr & ~HPAGE_MASK)
@@ -151,7 +149,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
 
        /* Handle MAP_FIXED */
        if (flags & MAP_FIXED) {
-               if (prepare_hugepage_range(addr, len, pgoff))
+               if (prepare_hugepage_range(addr, len))
                        return -EINVAL;
                return addr;
        }
@@ -183,7 +181,7 @@ static int __init hugetlb_setup_sz(char *str)
                tr_pages = 0x15557000UL;
 
        size = memparse(str, &str);
-       if (*str || (size & (size-1)) || !(tr_pages & size) ||
+       if (*str || !is_power_of_2(size) || !(tr_pages & size) ||
                size <= PAGE_SIZE ||
                size >= (1UL << PAGE_SHIFT << MAX_ORDER)) {
                printk(KERN_WARNING "Invalid huge page size specified\n");
@@ -196,6 +194,6 @@ static int __init hugetlb_setup_sz(char *str)
         * override here with new page shift.
         */
        ia64_set_rr(HPAGE_REGION_BASE, hpage_shift << 2);
-       return 1;
+       return 0;
 }
-__setup("hugepagesz=", hugetlb_setup_sz);
+early_param("hugepagesz", hugetlb_setup_sz);