diff options
| author | Dimitri Sivanich <sivanich@sgi.com> | 2012-06-05 13:44:36 -0500 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-06-19 23:18:06 +0100 |
| commit | dcbf047fc060c9cfea0c4bb16ac322e4e6a08500 (patch) | |
| tree | 625092607d67d7c0b41e0f66fbddc90128d53fbf /kernel | |
| parent | b39d6032d8c17e4f2f2074793bc99a114ac841f5 (diff) | |
sched: Fix the relax_domain_level boot parameter
commit a841f8cef4bb124f0f5563314d0beaf2e1249d72 upstream.
It does not get processed because sched_domain_level_max is 0 at the
time that setup_relax_domain_level() is run.
Simply accept the value as it is, as we don't know the value of
sched_domain_level_max until sched domain construction is completed.
Fix sched_relax_domain_level in cpuset. The build_sched_domain() routine calls
the set_domain_attribute() routine prior to setting the sd->level, however,
the set_domain_attribute() routine relies on the sd->level to decide whether
idle load balancing will be off/on.
Signed-off-by: Dimitri Sivanich <sivanich@sgi.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20120605184436.GA15668@sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
[bwh: Backported to 3.2: adjust the filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 299f55ce4e1e..576a27fa5efc 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -7429,11 +7429,8 @@ int sched_domain_level_max; static int __init setup_relax_domain_level(char *str) { - unsigned long val; - - val = simple_strtoul(str, NULL, 0); - if (val < sched_domain_level_max) - default_relax_domain_level = val; + if (kstrtoint(str, 0, &default_relax_domain_level)) + pr_warn("Unable to set relax_domain_level\n"); return 1; } @@ -7636,7 +7633,6 @@ struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl, if (!sd) return child; - set_domain_attribute(sd, attr); cpumask_and(sched_domain_span(sd), cpu_map, tl->mask(cpu)); if (child) { sd->level = child->level + 1; @@ -7644,6 +7640,7 @@ struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl, child->parent = sd; } sd->child = child; + set_domain_attribute(sd, attr); return sd; } |