summaryrefslogtreecommitdiffstats
path: root/arch/sparc64/mm/hugetlbpage.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@g5.osdl.org>2006-04-02 12:48:07 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-02 12:48:07 -0700
commit23344cb341902f4e3431d8137dca93d6e186d054 (patch)
tree2a0e443ade173b80cb0df261f4b2d66f79b9270e /arch/sparc64/mm/hugetlbpage.c
parentbacd3add087770333bdce65cd3dd25e3b2cd67ac (diff)
parent289eee6fa78e999208120c856ef3ae5a817fd59c (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC]: Wire up sys_sync_file_range() into syscall tables. [SPARC]: Wire up sys_splice() into the syscall tables. [SPARC64]: Update defconfig. [SPARC64]: Align address in huge_pte_alloc(). [SPARC64]: Document the instruction checks we do in do_sparc64_fault(). [SPARC64]: Make tsb_sync() mm comparison more precise.
Diffstat (limited to 'arch/sparc64/mm/hugetlbpage.c')
-rw-r--r--arch/sparc64/mm/hugetlbpage.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c
index 074620d413d..fbbbebbad8a 100644
--- a/arch/sparc64/mm/hugetlbpage.c
+++ b/arch/sparc64/mm/hugetlbpage.c
@@ -198,6 +198,13 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
pmd_t *pmd;
pte_t *pte = NULL;
+ /* We must align the address, because our caller will run
+ * set_huge_pte_at() on whatever we return, which writes out
+ * all of the sub-ptes for the hugepage range. So we have
+ * to give it the first such sub-pte.
+ */
+ addr &= HPAGE_MASK;
+
pgd = pgd_offset(mm, addr);
pud = pud_alloc(mm, pgd, addr);
if (pud) {