uml: Eliminate kernel allocator wrappers

UML had two wrapper procedures for kmalloc, um_kmalloc and um_kmalloc_atomic
because the flag constants weren't available in userspace code.
kern_constants.h had made kernel constants available for a long time, so there
is no need for these wrappers any more.  Rather, userspace code calls kmalloc
directly with the userspace versions of the gfp flags.

kmalloc isn't a real procedure, so I had to essentially copy the inline
wrapper around __kmalloc.

vmalloc also had its own wrapper for no good reason.  This is now gone.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 12 insertions, 3 deletions

diff --git a/arch/um/include/common-offsets.h b/arch/um/include/common-offsets.h
index 7376ee44e330..6eee343e53eb 100644
--- a/arch/um/include/common-offsets.h
+++ b/arch/um/include/common-offsets.h
@@ -27,6 +27,9 @@ DEFINE(UM_ELFCLASS64, ELFCLASS64);
 
 DEFINE(UM_NR_CPUS, NR_CPUS);
 
+DEFINE(UM_GFP_KERNEL, GFP_KERNEL);
+DEFINE(UM_GFP_ATOMIC, GFP_ATOMIC);
+
 /* For crypto assembler code. */
 DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
 
diff --git a/arch/um/include/um_malloc.h b/arch/um/include/um_malloc.h
index e6d7c5aa3f4e..0ad17cb83d96 100644
--- a/arch/um/include/um_malloc.h
+++ b/arch/um/include/um_malloc.h
@@ -6,11 +6,17 @@
 #ifndef __UM_MALLOC_H__
 #define __UM_MALLOC_H__
 
-extern void *um_kmalloc(int size);
-extern void *um_kmalloc_atomic(int size);
+#include "kern_constants.h"
+
+extern void *__kmalloc(int size, int flags);
+static inline void *kmalloc(int size, int flags)
+{
+        return __kmalloc(size, flags);
+}
+
 extern void kfree(const void *ptr);
 
-extern void *um_vmalloc(int size);
+extern void *vmalloc(unsigned long size);
 extern void vfree(void *ptr);
 
 #endif /* __UM_MALLOC_H__ */