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-rw-r--r--mm/filemap.c3
-rw-r--r--mm/hugetlb.c7
-rw-r--r--mm/migrate.c3
3 files changed, 9 insertions, 4 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index e373692..698ea80 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2232,6 +2232,9 @@ again:
if (unlikely(status))
break;
+ if (mapping_writably_mapped(mapping))
+ flush_dcache_page(page);
+
pagefault_disable();
copied = iov_iter_copy_from_user_atomic(page, i, offset, bytes);
pagefault_enable();
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index e91b81b..2d16fa6 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1515,10 +1515,9 @@ static struct attribute_group hstate_attr_group = {
.attrs = hstate_attrs,
};
-static int __init hugetlb_sysfs_add_hstate(struct hstate *h,
- struct kobject *parent,
- struct kobject **hstate_kobjs,
- struct attribute_group *hstate_attr_group)
+static int hugetlb_sysfs_add_hstate(struct hstate *h, struct kobject *parent,
+ struct kobject **hstate_kobjs,
+ struct attribute_group *hstate_attr_group)
{
int retval;
int hi = h - hstates;
diff --git a/mm/migrate.c b/mm/migrate.c
index efddbf0..9a0db5b 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -912,6 +912,9 @@ static int do_pages_move(struct mm_struct *mm, struct task_struct *task,
goto out_pm;
err = -ENODEV;
+ if (node < 0 || node >= MAX_NUMNODES)
+ goto out_pm;
+
if (!node_state(node, N_HIGH_MEMORY))
goto out_pm;
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