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| author | Hugh Dickins <hugh@veritas.com> | 2005-10-20 16:24:28 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-20 09:02:07 -0700 |
| commit | ac9b9c667c2e1194e22ebe0a441ae1c37aaa9b90 (patch) | |
| tree | 3903d87d0b56a49ead39c0460b5bc0b86b040775 /mm/memory.c | |
| parent | 93918e9afc76717176e9e114e79cdbb602a45ae8 (diff) | |
| download | lwn-ac9b9c667c2e1194e22ebe0a441ae1c37aaa9b90.tar.gz lwn-ac9b9c667c2e1194e22ebe0a441ae1c37aaa9b90.zip | |
[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.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/mm/memory.c b/mm/memory.c index 8c88b973abc5..1db40e935e55 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 |