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authorAndrii Nakryiko <andriin@fb.com>2019-11-24 01:08:35 +0300
committerAlexei Starovoitov <ast@kernel.org>2019-11-26 00:49:59 +0300
commited81745a4c96841937f1da35c0eb66ac312e1480 (patch)
treef17dbf8a881bb81cde966507c7c62f9385308b5a
parentc431047c4efe7903fb1c5a23e0f3f8eb1efc89f9 (diff)
downloadlinux-ed81745a4c96841937f1da35c0eb66ac312e1480.tar.xz
mm: Implement no-MMU variant of vmalloc_user_node_flags
To fix build with !CONFIG_MMU, implement it for no-MMU configurations as well. Fixes: fc9702273e2e ("bpf: Add mmap() support for BPF_MAP_TYPE_ARRAY") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20191123220835.1237773-1-andriin@fb.com
-rw-r--r--mm/nommu.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/mm/nommu.c b/mm/nommu.c
index 99b7ec318824..7de592058ab4 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -155,11 +155,11 @@ void *__vmalloc_node_flags(unsigned long size, int node, gfp_t flags)
return __vmalloc(size, flags, PAGE_KERNEL);
}
-void *vmalloc_user(unsigned long size)
+static void *__vmalloc_user_flags(unsigned long size, gfp_t flags)
{
void *ret;
- ret = __vmalloc(size, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL);
+ ret = __vmalloc(size, flags, PAGE_KERNEL);
if (ret) {
struct vm_area_struct *vma;
@@ -172,8 +172,19 @@ void *vmalloc_user(unsigned long size)
return ret;
}
+
+void *vmalloc_user(unsigned long size)
+{
+ return __vmalloc_user_flags(size, GFP_KERNEL | __GFP_ZERO);
+}
EXPORT_SYMBOL(vmalloc_user);
+void *vmalloc_user_node_flags(unsigned long size, int node, gfp_t flags)
+{
+ return __vmalloc_user_flags(size, flags | __GFP_ZERO);
+}
+EXPORT_SYMBOL(vmalloc_user_node_flags);
+
struct page *vmalloc_to_page(const void *addr)
{
return virt_to_page(addr);