[RFC][PATCH 10/11] add checkpoint/restart compile helper

Dave Hansen
2009-03-05T16:42:12Z

This is to aid the compiler a little bit so that we
don't have to add as many #ifdefs. Gets used in the
next patch.

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
---

linux-2.6.git-dave/include/linux/checkpoint.h | 11 +++++++++++
1 file changed, 11 insertions(+)

diff -puN include/linux/checkpoint.h~cr-compile-helper include/linux/checkpoint.h
--- linux-2.6.git/include/linux/checkpoint.h~cr-compile-helper 2009-03-05 08:37:04.000000000 -0800
+++ linux-2.6.git-dave/include/linux/checkpoint.h 2009-03-05 08:37:04.000000000 -0800
@@ -115,6 +115,10 @@ static inline void __files_deny_checkpoi

int cr_explain_file(struct file *file, char *explain, int left);
int cr_file_supported(struct file *file);
+static inline int cr_enabled(void)
+{
+ return 1;
+}

#else /* !CONFIG_CHECKPOINT_RESTART */

@@ -128,6 +132,13 @@ static inline int cr_file_supported(stru
{
return 0;
}
+/*
+ * Use this when you can in lieu of an #ifdef
+ */
+static inline int cr_enabled(void)
+{
+ return 0;
+}

#endif /* CONFIG_CHECKPOINT_RESTART */
#endif /* _CHECKPOINT_CKPT_H_ */
_