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authorDavid S. Miller <davem@davemloft.net>2011-06-21 05:29:08 (GMT)
committerDavid S. Miller <davem@davemloft.net>2011-06-21 05:29:08 (GMT)
commit9f6ec8d697c08963d83880ccd35c13c5ace716ea (patch)
treead8d93cf6fcdd09b86ade09f5fcbbc66cdb1cca2 /mm/hugetlb.c
parent4aa3a715551c93eda32d79bd52042ce500bd5383 (diff)
parent56299378726d5f2ba8d3c8cbbd13cb280ba45e4f (diff)
downloadlinux-fsl-qoriq-9f6ec8d697c08963d83880ccd35c13c5ace716ea.tar.xz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/wireless/iwlwifi/iwl-agn-rxon.c drivers/net/wireless/rtlwifi/pci.c net/netfilter/ipvs/ip_vs_core.c
Diffstat (limited to 'mm/hugetlb.c')
-rw-r--r--mm/hugetlb.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index f33bb31..bfcf153 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1033,10 +1033,10 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma,
*/
chg = vma_needs_reservation(h, vma, addr);
if (chg < 0)
- return ERR_PTR(chg);
+ return ERR_PTR(-VM_FAULT_OOM);
if (chg)
if (hugetlb_get_quota(inode->i_mapping, chg))
- return ERR_PTR(-ENOSPC);
+ return ERR_PTR(-VM_FAULT_SIGBUS);
spin_lock(&hugetlb_lock);
page = dequeue_huge_page_vma(h, vma, addr, avoid_reserve);
@@ -1111,6 +1111,14 @@ static void __init gather_bootmem_prealloc(void)
WARN_ON(page_count(page) != 1);
prep_compound_huge_page(page, h->order);
prep_new_huge_page(h, page, page_to_nid(page));
+ /*
+ * If we had gigantic hugepages allocated at boot time, we need
+ * to restore the 'stolen' pages to totalram_pages in order to
+ * fix confusing memory reports from free(1) and another
+ * side-effects, like CommitLimit going negative.
+ */
+ if (h->order > (MAX_ORDER - 1))
+ totalram_pages += 1 << h->order;
}
}