[patch 15/31] fix MTIME_SEC_MAX on 32-bit

Greg KH
2007-03-19T21:42:28Z

[-- Attachment #1: fix-mtime_sec_max-on-32-bit.patch --]
[-- Type: text/plain, Size: 843 bytes --]

-stable review patch. If anyone has any objections, please let us know.

------------------

From: Thomas Gleixner <tglx@linutronix.de>

The maximum seconds value we can handle on 32bit is LONG_MAX.

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
include/linux/ktime.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -57,7 +57,11 @@ typedef union {
} ktime_t;

#define KTIME_MAX ((s64)~((u64)1 << 63))
-#define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC)
+#if (BITS_PER_LONG == 64)
+# define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC)
+#else
+# define KTIME_SEC_MAX LONG_MAX
+#endif

/*
* ktime_t definitions when using the 64-bit scalar representation:

--