Messages in this thread Patch in this message | | | From | S.Çağlar Onur <> | Subject | [PATCH 02/14] arch/ia64/kernel/: Use time_* macros | Date | Thu, 14 Feb 2008 17:36:40 +0200 |
| |
The functions time_before, time_before_eq, time_after, and time_after_eq are more robust for comparing jiffies against other values.
So following patch implements usage of the time_after() & time_before() macros, defined at linux/jiffies.h, which deals with wrapping correctly
Cc: linux-ia64@vger.kernel.org Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr> --- arch/ia64/kernel/irq_ia64.c | 2 +- arch/ia64/kernel/mca.c | 3 ++- arch/ia64/kernel/unaligned.c | 3 ++- 3 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 0b52f19..5017a2d 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -405,7 +405,7 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs) static unsigned char count; static long last_time; - if (jiffies - last_time > 5*HZ) + if (time_after(jiffies, last_time + 5 * HZ)) count = 0; if (++count < 5) { last_time = jiffies; diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 6e17aed..9b03e32 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -69,6 +69,7 @@ * 2007-04-27 Russ Anderson <rja@sgi.com> * Support multiple cpus going through OS_MCA in the same event. */ +#include <linux/jiffies.h> #include <linux/types.h> #include <linux/init.h> #include <linux/sched.h> @@ -293,7 +294,7 @@ static void ia64_mlogbuf_dump_from_init(void) if (mlogbuf_finished) return; - if (mlogbuf_timestamp && (mlogbuf_timestamp + 30*HZ > jiffies)) { + if (mlogbuf_timestamp && time_before(jiffies, mlogbuf_timestamp + 30 * HZ)) { printk(KERN_ERR "INIT: mlogbuf_dump is interrupted by INIT " " and the system seems to be messed up.\n"); ia64_mlogbuf_finish(0); diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c index 52f70bb..0bd0f46 100644 --- a/arch/ia64/kernel/unaligned.c +++ b/arch/ia64/kernel/unaligned.c @@ -13,6 +13,7 @@ * 2001/08/13 Correct size of extended floats (float_fsz) from 16 to 10 bytes. * 2001/01/17 Add support emulation of unaligned kernel accesses. */ +#include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/tty.h> @@ -1290,7 +1291,7 @@ within_logging_rate_limit (void) { static unsigned long count, last_time; - if (jiffies - last_time > 5*HZ) + if (time_after(jiffies, last_time + 5 * HZ)) count = 0; if (count < 5) { last_time = jiffies; -- 1.5.3.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |