The patch titled
Subject: sched-proc-sched_stat-fails-on-very-very-large-machines-v2
has been added to the -mm tree. Its filename is
sched-proc-sched_stat-fails-on-very-very-large-machines-v2.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Nathan Zimmer <nzimmer@xxxxxxx>
Subject: sched-proc-sched_stat-fails-on-very-very-large-machines-v2
v2: Took Andrew's suggestion to add comments, fix memleak
Signed-off-by: Nathan Zimmer <nzimmer@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Dave Jones <davej@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/sched/stats.c | 7 +++++++
1 file changed, 7 insertions(+)
diff -puN kernel/sched/stats.c~sched-proc-sched_stat-fails-on-very-very-large-machines-v2 kernel/sched/stats.c
--- a/kernel/sched/stats.c~sched-proc-sched_stat-fails-on-very-very-large-machines-v2
+++ a/kernel/sched/stats.c
@@ -81,6 +81,13 @@ static int show_schedstat(struct seq_fil
return 0;
}
+/*
+ * This itererator needs some explination.
+ * It returns 1 for the header position.
+ * This means 2 is cpu 0.
+ * In a hotplugged system some cpus, including cpu 0, may be missing so we have
+ * to use cpumask_* to iterate over the cpus.
+ */
static void *schedstat_start(struct seq_file *file, loff_t *offset)
{
unsigned long n = *offset;
_
Patches currently in -mm which might be from nzimmer@xxxxxxx are
timer_list-split-timer_list_show_tickdevices.patch
timer_list-convert-timer-list-to-be-a-proper-seq_file.patch
timer_list-convert-timer-list-to-be-a-proper-seq_file-fix.patch
sched-proc-sched_stat-fails-on-very-very-large-machines.patch
sched-proc-sched_stat-fails-on-very-very-large-machines-fix.patch
sched-proc-sched_stat-fails-on-very-very-large-machines-v2.patch
sched-proc-sched_debug-fails-on-very-very-large-machines.patch
sched-proc-sched_debug-fails-on-very-very-large-machines-fix.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
