[PATCH] slob: introduce mm/util.c for shared functions

Add mm/util.c for functions common between SLAB and SLOB.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 40 insertions, 38 deletions

diff --git a/mm/Makefile b/mm/Makefile
index 2fa6d2ca9f28..74c85ddc9176 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -10,7 +10,7 @@ mmu-$(CONFIG_MMU)	:= fremap.o highmem.o madvise.o memory.o mincore.o \
 obj-y                   := bootmem.o filemap.o mempool.o oom_kill.o fadvise.o \
                            page_alloc.o page-writeback.o pdflush.o \
                            readahead.o slab.o swap.o truncate.o vmscan.o \
-                           prio_tree.o $(mmu-y)
+                           prio_tree.o util.o $(mmu-y)
 
 obj-$(CONFIG_SWAP)      += page_io.o swap_state.o swapfile.o thrash.o
 obj-$(CONFIG_HUGETLBFS) += hugetlb.o
diff --git a/mm/slab.c b/mm/slab.c
index 76b092bd0bf7..1c46c6383552 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3053,20 +3053,6 @@ void kmem_cache_free(kmem_cache_t *cachep, void *objp)
 EXPORT_SYMBOL(kmem_cache_free);
 
 /**
- * kzalloc - allocate memory. The memory is set to zero.
- * @size: how many bytes of memory are required.
- * @flags: the type of memory to allocate.
- */
-void *kzalloc(size_t size, gfp_t flags)
-{
-        void *ret = kmalloc(size, flags);
-        if (ret)
-                memset(ret, 0, size);
-        return ret;
-}
-EXPORT_SYMBOL(kzalloc);
-
-/**
  * kfree - free previously allocated memory
  * @objp: pointer returned by kmalloc.
  *
@@ -3659,26 +3645,3 @@ unsigned int ksize(const void *objp)
 
         return obj_reallen(page_get_cache(virt_to_page(objp)));
 }
-
-
-/*
- * kstrdup - allocate space for and copy an existing string
- *
- * @s: the string to duplicate
- * @gfp: the GFP mask used in the kmalloc() call when allocating memory
- */
-char *kstrdup(const char *s, gfp_t gfp)
-{
-        size_t len;
-        char *buf;
-
-        if (!s)
-                return NULL;
-
-        len = strlen(s) + 1;
-        buf = kmalloc(len, gfp);
-        if (buf)
-                memcpy(buf, s, len);
-        return buf;
-}
-EXPORT_SYMBOL(kstrdup);
diff --git a/mm/util.c b/mm/util.c
new file mode 100644
index 000000000000..5f4bb59da63c
--- /dev/null
+++ b/mm/util.c
@@ -0,0 +1,39 @@
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/module.h>
+
+/**
+ * kzalloc - allocate memory. The memory is set to zero.
+ * @size: how many bytes of memory are required.
+ * @flags: the type of memory to allocate.
+ */
+void *kzalloc(size_t size, gfp_t flags)
+{
+        void *ret = kmalloc(size, flags);
+        if (ret)
+                memset(ret, 0, size);
+        return ret;
+}
+EXPORT_SYMBOL(kzalloc);
+
+/*
+ * kstrdup - allocate space for and copy an existing string
+ *
+ * @s: the string to duplicate
+ * @gfp: the GFP mask used in the kmalloc() call when allocating memory
+ */
+char *kstrdup(const char *s, gfp_t gfp)
+{
+        size_t len;
+        char *buf;
+
+        if (!s)
+                return NULL;
+
+        len = strlen(s) + 1;
+        buf = kmalloc(len, gfp);
+        if (buf)
+                memcpy(buf, s, len);
+        return buf;
+}
+EXPORT_SYMBOL(kstrdup);