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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-13 08:29:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-13 08:29:12 -0700 |
| commit | 0f181328287db30671e9997329cff71395d4af8b (patch) | |
| tree | 0fc4abf67c2b32fee89e3dce8ae2030ba99a54a5 /mm/madvise.c | |
| parent | f2deae9d4e70793568ef9e85d227abb7bef5b622 (diff) | |
| download | op-kernel-dev-0f181328287db30671e9997329cff71395d4af8b.zip op-kernel-dev-0f181328287db30671e9997329cff71395d4af8b.tar.gz | |
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/madvise.c')
| -rw-r--r-- | mm/madvise.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index 36d6ea2..b9ce574 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; |
