aboutsummaryrefslogtreecommitdiffstats
path: root/mm/mempolicy.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/mempolicy.c')
-rw-r--r--mm/mempolicy.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index f969da5dd8a2..81a127643aea 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -924,15 +924,21 @@ static int migrate_to_node(struct mm_struct *mm, int source, int dest,
924 nodemask_t nmask; 924 nodemask_t nmask;
925 LIST_HEAD(pagelist); 925 LIST_HEAD(pagelist);
926 int err = 0; 926 int err = 0;
927 struct vm_area_struct *vma;
927 928
928 nodes_clear(nmask); 929 nodes_clear(nmask);
929 node_set(source, nmask); 930 node_set(source, nmask);
930 931
931 check_range(mm, mm->mmap->vm_start, mm->task_size, &nmask, 932 vma = check_range(mm, mm->mmap->vm_start, mm->task_size, &nmask,
932 flags | MPOL_MF_DISCONTIG_OK, &pagelist); 933 flags | MPOL_MF_DISCONTIG_OK, &pagelist);
934 if (IS_ERR(vma))
935 return PTR_ERR(vma);
933 936
934 if (!list_empty(&pagelist)) 937 if (!list_empty(&pagelist)) {
935 err = migrate_pages(&pagelist, new_node_page, dest, 0); 938 err = migrate_pages(&pagelist, new_node_page, dest, 0);
939 if (err)
940 putback_lru_pages(&pagelist);
941 }
936 942
937 return err; 943 return err;
938} 944}
@@ -1147,9 +1153,12 @@ static long do_mbind(unsigned long start, unsigned long len,
1147 1153
1148 err = mbind_range(mm, start, end, new); 1154 err = mbind_range(mm, start, end, new);
1149 1155
1150 if (!list_empty(&pagelist)) 1156 if (!list_empty(&pagelist)) {
1151 nr_failed = migrate_pages(&pagelist, new_vma_page, 1157 nr_failed = migrate_pages(&pagelist, new_vma_page,
1152 (unsigned long)vma, 0); 1158 (unsigned long)vma, 0);
1159 if (nr_failed)
1160 putback_lru_pages(&pagelist);
1161 }
1153 1162
1154 if (!err && nr_failed && (flags & MPOL_MF_STRICT)) 1163 if (!err && nr_failed && (flags & MPOL_MF_STRICT))
1155 err = -EIO; 1164 err = -EIO;