path: root/mm
diff options
authorLinus Torvalds <torvalds@linux-foundation.org>2009-05-13 08:29:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-05-13 08:29:12 -0700
commit0f181328287db30671e9997329cff71395d4af8b (patch)
tree0fc4abf67c2b32fee89e3dce8ae2030ba99a54a5 /mm
parentRemove implementation of readpage from the hugetlbfs_aops (diff)
Revert "Ignore madvise(MADV_WILLNEED) for hugetlbfs-backed regions"
This reverts commit a425a638c858fd10370b573bde81df3ba500e271. Now that the previous commit removed the "readpage" actor for hugetlb files, read-ahead will no longer mess up the mapping, and there's no longer any reason to treat hugetlbfs mappings specially. Tested-and-acked-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
1 files changed, 0 insertions, 8 deletions
diff --git a/mm/madvise.c b/mm/madvise.c
index 36d6ea2b6340..b9ce574827c8 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -112,14 +112,6 @@ static long madvise_willneed(struct vm_area_struct * vma,
if (!file)
return -EBADF;
- /*
- * Page cache readahead assumes page cache pages are order-0 which
- * is not the case for hugetlbfs. Do not give a bad return value
- * but ignore the advice.
- */
- if (vma->vm_flags & VM_HUGETLB)
- return 0;
if (file->f_mapping->a_ops->get_xip_mem) {
/* no bad return value, but ignore advice */
return 0;