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authorAndi Kleen <ak@linux.intel.com>2010-10-11 10:03:21 -0400
committerAndi Kleen <ak@linux.intel.com>2010-10-11 10:57:39 -0400
commit3ef8fd7f720fc4f462fcdcae2fcde6f1c0536bfe (patch)
tree05d6f2c62c9c00c0ab717f6a14a449684f3441d3
parentf672b49b07a4a152fc4251f2aec6b4d05164c4cd (diff)
Fix migration.c compilation on s390
31bit s390 doesn't have huge pages and failed with: > mm/migrate.c: In function 'remove_migration_pte': > mm/migrate.c:143:3: error: implicit declaration of function 'pte_mkhuge' > mm/migrate.c:143:7: error: incompatible types when assigning to type 'pte_t' from type 'int' Put that code into a ifdef. Reported by Heiko Carstens Signed-off-by: Andi Kleen <ak@linux.intel.com>
-rw-r--r--mm/migrate.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index 55dbc45880c6..f8c9bccf2520 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -139,8 +139,10 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
139 pte = pte_mkold(mk_pte(new, vma->vm_page_prot)); 139 pte = pte_mkold(mk_pte(new, vma->vm_page_prot));
140 if (is_write_migration_entry(entry)) 140 if (is_write_migration_entry(entry))
141 pte = pte_mkwrite(pte); 141 pte = pte_mkwrite(pte);
142#ifdef CONFIG_HUGETLB_PAGE
142 if (PageHuge(new)) 143 if (PageHuge(new))
143 pte = pte_mkhuge(pte); 144 pte = pte_mkhuge(pte);
145#endif
144 flush_cache_page(vma, addr, pte_pfn(pte)); 146 flush_cache_page(vma, addr, pte_pfn(pte));
145 set_pte_at(mm, addr, ptep, pte); 147 set_pte_at(mm, addr, ptep, pte);
146 148