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author | James Morris <jmorris@namei.org> | 2009-05-08 11:56:47 +0400 |
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committer | James Morris <jmorris@namei.org> | 2009-05-08 11:56:47 +0400 |
commit | d254117099d711f215e62427f55dfb8ebd5ad011 (patch) | |
tree | 0848ff8dd74314fec14a86497f8d288c86ba7c65 /mm/madvise.c | |
parent | 07ff7a0b187f3951788f64ae1f30e8109bc8e9eb (diff) | |
parent | 8c9ed899b44c19e81859fbb0e9d659fe2f8630fc (diff) | |
download | linux-d254117099d711f215e62427f55dfb8ebd5ad011.tar.xz |
Merge branch 'master' into next
Diffstat (limited to 'mm/madvise.c')
-rw-r--r-- | mm/madvise.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index b9ce574827c8..36d6ea2b6340 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -112,6 +112,14 @@ 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; |