From: Julia Lawall <[EMAIL PROTECTED]> The functions time_before, time_before_eq, time_after, and time_after_eq are more robust for comparing jiffies against other values.
A simplified version of the semantic patch making this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @ change_compare_np @ expression E; @@ ( - jiffies <= E + time_before_eq(jiffies,E) | - jiffies >= E + time_after_eq(jiffies,E) | - jiffies < E + time_before(jiffies,E) | - jiffies > E + time_after(jiffies,E) ) @ include depends on change_compare_np @ @@ #include <linux/jiffies.h> @ no_include depends on !include && change_compare_np @ @@ #include <linux/...> + #include <linux/jiffies.h> // </smpl> Signed-off-by: Julia Lawall <[EMAIL PROTECTED]> --- diff -r -u -p a/init/calibrate.c b/init/calibrate.c --- a/init/calibrate.c 2007-10-22 11:25:44.000000000 +0200 +++ b/init/calibrate.c 2007-12-23 20:44:00.000000000 +0100 @@ -65,7 +65,7 @@ static unsigned long __devinit calibrate pre_start = 0; read_current_timer(&start); start_jiffies = jiffies; - while (jiffies <= (start_jiffies + 1)) { + while (time_after_eq(jiffies, start_jiffies + 1)) { pre_start = start; read_current_timer(&start); } @@ -73,8 +73,9 @@ static unsigned long __devinit calibrate pre_end = 0; end = post_start; - while (jiffies <= - (start_jiffies + 1 + DELAY_CALIBRATION_TICKS)) { + while (time_after_eq(jiffies, + start_jiffies + + 1 + DELAY_CALIBRATION_TICKS)) { pre_end = end; read_current_timer(&end); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
