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authorHugh Dickins <hugh@veritas.com>2005-10-20 16:24:28 +0100
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-20 09:02:07 -0700
commitac9b9c667c2e1194e22ebe0a441ae1c37aaa9b90 (patch)
tree3903d87d0b56a49ead39c0460b5bc0b86b040775 /mm/memory.c
parent93918e9afc76717176e9e114e79cdbb602a45ae8 (diff)
[PATCH] Fix handling spurious page fault for hugetlb region
This reverts commit 3359b54c8c07338f3a863d1109b42eebccdcf379 and replaces it with a cleaner version that is purely based on page table operations, so that the synchronization between inode size and hugetlb mappings becomes moot. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/memory.c')
-rw-r--r--mm/memory.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 8c88b973abc..1db40e935e5 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2045,18 +2045,8 @@ int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct * vma,
inc_page_state(pgfault);
- if (unlikely(is_vm_hugetlb_page(vma))) {
- if (valid_hugetlb_file_off(vma, address))
- /* We get here only if there was a stale(zero) TLB entry
- * (because of HW prefetching).
- * Low-level arch code (if needed) should have already
- * purged the stale entry as part of this fault handling.
- * Here we just return.
- */
- return VM_FAULT_MINOR;
- else
- return VM_FAULT_SIGBUS; /* mapping truncation does this. */
- }
+ if (unlikely(is_vm_hugetlb_page(vma)))
+ return hugetlb_fault(mm, vma, address, write_access);
/*
* We need the page table lock to synchronize with kswapd