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authorAl Viro <viro@zeniv.linux.org.uk>2014-05-06 14:02:53 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-05-06 14:02:53 -0400
commit39f1f78d53b9bcbca91967380c5f0f2305a5c55f (patch)
tree83020c0da45781d7b205193dd7327952133f2194
parent50c6e282bdf5e8dabf8d7cf7b162545a55645fd9 (diff)
downloadop-kernel-dev-39f1f78d53b9bcbca91967380c5f0f2305a5c55f.zip
op-kernel-dev-39f1f78d53b9bcbca91967380c5f0f2305a5c55f.tar.gz
nick kvfree() from apparmor
too many places open-code it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--include/linux/mm.h2
-rw-r--r--mm/util.c10
-rw-r--r--security/apparmor/include/apparmor.h1
-rw-r--r--security/apparmor/lib.c14
4 files changed, 12 insertions, 15 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index bf9811e..d677706 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -370,6 +370,8 @@ static inline int is_vmalloc_or_module_addr(const void *x)
}
#endif
+extern void kvfree(const void *addr);
+
static inline void compound_lock(struct page *page)
{
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
diff --git a/mm/util.c b/mm/util.c
index f380af7..d5ea733 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -10,6 +10,7 @@
#include <linux/swapops.h>
#include <linux/mman.h>
#include <linux/hugetlb.h>
+#include <linux/vmalloc.h>
#include <asm/uaccess.h>
@@ -387,6 +388,15 @@ unsigned long vm_mmap(struct file *file, unsigned long addr,
}
EXPORT_SYMBOL(vm_mmap);
+void kvfree(const void *addr)
+{
+ if (is_vmalloc_addr(addr))
+ vfree(addr);
+ else
+ kfree(addr);
+}
+EXPORT_SYMBOL(kvfree);
+
struct address_space *page_mapping(struct page *page)
{
struct address_space *mapping = page->mapping;
diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h
index 8fb1488..97130f8 100644
--- a/security/apparmor/include/apparmor.h
+++ b/security/apparmor/include/apparmor.h
@@ -66,7 +66,6 @@ extern int apparmor_initialized __initdata;
char *aa_split_fqname(char *args, char **ns_name);
void aa_info_message(const char *str);
void *__aa_kvmalloc(size_t size, gfp_t flags);
-void kvfree(void *buffer);
static inline void *kvmalloc(size_t size)
{
diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c
index 6968992..c1827e0 100644
--- a/security/apparmor/lib.c
+++ b/security/apparmor/lib.c
@@ -104,17 +104,3 @@ void *__aa_kvmalloc(size_t size, gfp_t flags)
}
return buffer;
}
-
-/**
- * kvfree - free an allocation do by kvmalloc
- * @buffer: buffer to free (MAYBE_NULL)
- *
- * Free a buffer allocated by kvmalloc
- */
-void kvfree(void *buffer)
-{
- if (is_vmalloc_addr(buffer))
- vfree(buffer);
- else
- kfree(buffer);
-}
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