[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>

diff --git a/mm/Makefile b/mm/Makefile
index 2fa6d2ca9f28ec0572eded8cf025e727a622440d..74c85ddc91760cc6f0cfd633f7456d637bce4c56 100644 (file)
--- 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 76b092bd0bf7122b7a18dc8061dcd76e23bdb61a..1c46c6383552ffa82921934bb6ce05715dd0fd88 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3052,20 +3052,6 @@ 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 (file)
index 0000000..5f4bb59
--- /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);