mm/slab.c: proper prototypes

Add proper prototypes in include/linux/slab.h.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 2f8f60f..f9ed934 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -219,6 +219,9 @@
 
 #endif /* DEBUG_SLAB */
 
+extern const struct seq_operations slabinfo_op;
+ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *);
+
 #endif	/* __KERNEL__ */
 #endif	/* _LINUX_SLAB_H */