kshmem modifications to actually use kshmem

Index: linux-2.6/fs/exec.c
===================================================================
@@ -58,6 +58,10 @@
  #include <linux/kmod.h>
  #endif
 
+#ifdef CONFIG_KSHMEM
+#include <linux/kshmem.h>
+#endif
+
  int core_uses_pid;
  char core_pattern[128] = "core";
  int suid_dumpable = 0;

@@ -1183,6 +1187,12 @@
  	if (retval < 0)
  		goto out;
 
+#ifdef CONFIG_KSHMEM
+	retval = kshmem_prepare(bprm->mm);
+	if (retval < 0)
+		goto out;
+#endif
+
  	retval = search_binary_handler(bprm,regs);
  	if (retval >= 0) {
  		free_arg_pages(bprm);

Index: linux-2.6/init/main.c
===================================================================
@@ -54,6 +54,7 @@
  #include <linux/lockdep.h>
  #include <linux/pid_namespace.h>
  #include <linux/device.h>
+#include <linux/kshmem.h>
 
  #include <asm/io.h>
  #include <asm/bugs.h>

@@ -615,6 +616,8 @@
  	if (efi_enabled)
  		efi_enter_virtual_mode();
  #endif
+
+	kshmem_init();
  	fork_init(num_physpages);
  	proc_caches_init();
  	buffer_init();

Index: linux-2.6/kernel/fork.c
===================================================================
@@ -57,6 +57,10 @@
  #include <asm/cacheflush.h>
  #include <asm/tlbflush.h>
 
+#ifdef CONFIG_KSHMEM
+#include <linux/kshmem.h>
+#endif
+
  /*
   * Protected counters by write_lock_irq(&tasklist_lock)
   */

@@ -221,6 +225,12 @@
  	rb_parent = NULL;
  	pprev = &mm->mmap;
 
+#ifdef CONFIG_KSHMEM
+	retval = kshmem_prepare(mm);
+	if (retval < 0)
+		goto out;
+#endif
+
  	for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) {
  		struct file *file;