Re: [PATCH] sched: Make nr_uninterruptible count a signed value

From: Peter Zijlstra
Date: Thu May 10 2012 - 05:46:16 EST


Or something like the below.. I recently changed nr_running to int (see
c82513e51) so P(nr_running) would also benefit.

---
kernel/sched/debug.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 31e4f61..954fabf 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -260,8 +260,14 @@ static void print_cpu(struct seq_file *m, int cpu)
SEQ_printf(m, "\ncpu#%d\n", cpu);
#endif

-#define P(x) \
- SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x))
+#define P(x) \
+do { \
+ if (sizeof(rq->x) == 4) \
+ SEQ_printf(m, " .%-30s: %ld\n", #x, (long)(rq->x)); \
+ else \
+ SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x));\
+} while (0)
+
#define PN(x) \
SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x))


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