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hugetlb: ensure hugepage access is denied if hugepages are not supported
[platform/adaptation/renesas_rcar/renesas_kernel.git]
/
fs
/
hugetlbfs
/
inode.c
diff --git
a/fs/hugetlbfs/inode.c
b/fs/hugetlbfs/inode.c
index
d19b30a
..
a4a8ed5
100644
(file)
--- a/
fs/hugetlbfs/inode.c
+++ b/
fs/hugetlbfs/inode.c
@@
-1017,6
+1017,11
@@
static int __init init_hugetlbfs_fs(void)
int error;
int i;
+ if (!hugepages_supported()) {
+ pr_info("hugetlbfs: disabling because there are no supported hugepage sizes\n");
+ return -ENOTSUPP;
+ }
+
error = bdi_init(&hugetlbfs_backing_dev_info);
if (error)
return error;