| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20090111144305.GA7154@elte.hu>
Date: Sun, 11 Jan 2009 15:43:05 +0100
From: Ingo Molnar <mingo@...e.hu>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: [git pull] scheduler fixes
Linus,
Please pull the latest sched-fixes-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git sched-fixes-for-linus
Thanks,
Ingo
------------------>
Li Zefan (1):
sched: partly revert "sched debug: remove NULL checking in print_cfs_rt_rq()"
Rusty Russell (1):
cpumask: fix CONFIG_NUMA=y sched.c
Steven Noonan (1):
kernel/sched.c: add missing forward declaration for 'double_rq_lock'
kernel/sched.c | 13 ++++++++-----
kernel/sched_debug.c | 21 +++++++++++++++++----
2 files changed, 25 insertions(+), 9 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index deb5ac8..8be2c13 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -125,6 +125,9 @@ DEFINE_TRACE(sched_switch);
DEFINE_TRACE(sched_migrate_task);
#ifdef CONFIG_SMP
+
+static void double_rq_lock(struct rq *rq1, struct rq *rq2);
+
/*
* Divide a load by a sched group cpu_power : (load / sg->__cpu_power)
* Since cpu_power is a 'constant', we can use a reciprocal divide.
@@ -7282,10 +7285,10 @@ cpu_to_phys_group(int cpu, const struct cpumask *cpu_map,
* groups, so roll our own. Now each node has its own list of groups which
* gets dynamically allocated.
*/
-static DEFINE_PER_CPU(struct sched_domain, node_domains);
+static DEFINE_PER_CPU(struct static_sched_domain, node_domains);
static struct sched_group ***sched_group_nodes_bycpu;
-static DEFINE_PER_CPU(struct sched_domain, allnodes_domains);
+static DEFINE_PER_CPU(struct static_sched_domain, allnodes_domains);
static DEFINE_PER_CPU(struct static_sched_group, sched_group_allnodes);
static int cpu_to_allnodes_group(int cpu, const struct cpumask *cpu_map,
@@ -7560,7 +7563,7 @@ static int __build_sched_domains(const struct cpumask *cpu_map,
#ifdef CONFIG_NUMA
if (cpumask_weight(cpu_map) >
SD_NODES_PER_DOMAIN*cpumask_weight(nodemask)) {
- sd = &per_cpu(allnodes_domains, i);
+ sd = &per_cpu(allnodes_domains, i).sd;
SD_INIT(sd, ALLNODES);
set_domain_attribute(sd, attr);
cpumask_copy(sched_domain_span(sd), cpu_map);
@@ -7570,7 +7573,7 @@ static int __build_sched_domains(const struct cpumask *cpu_map,
} else
p = NULL;
- sd = &per_cpu(node_domains, i);
+ sd = &per_cpu(node_domains, i).sd;
SD_INIT(sd, NODE);
set_domain_attribute(sd, attr);
sched_domain_node_span(cpu_to_node(i), sched_domain_span(sd));
@@ -7688,7 +7691,7 @@ static int __build_sched_domains(const struct cpumask *cpu_map,
for_each_cpu(j, nodemask) {
struct sched_domain *sd;
- sd = &per_cpu(node_domains, j);
+ sd = &per_cpu(node_domains, j).sd;
sd->groups = sg;
}
sg->__cpu_power = 0;
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 4293cfa..16eeba4 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -145,6 +145,19 @@ static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
read_unlock_irqrestore(&tasklist_lock, flags);
}
+#if defined(CONFIG_CGROUP_SCHED) && \
+ (defined(CONFIG_FAIR_GROUP_SCHED) || defined(CONFIG_RT_GROUP_SCHED))
+static void task_group_path(struct task_group *tg, char *buf, int buflen)
+{
+ /* may be NULL if the underlying cgroup isn't fully-created yet */
+ if (!tg->css.cgroup) {
+ buf[0] = '\0';
+ return;
+ }
+ cgroup_path(tg->css.cgroup, buf, buflen);
+}
+#endif
+
void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
{
s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1,
@@ -154,10 +167,10 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
unsigned long flags;
#if defined(CONFIG_CGROUP_SCHED) && defined(CONFIG_FAIR_GROUP_SCHED)
- char path[128] = "";
+ char path[128];
struct task_group *tg = cfs_rq->tg;
- cgroup_path(tg->css.cgroup, path, sizeof(path));
+ task_group_path(tg, path, sizeof(path));
SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, path);
#elif defined(CONFIG_USER_SCHED) && defined(CONFIG_FAIR_GROUP_SCHED)
@@ -208,10 +221,10 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq)
{
#if defined(CONFIG_CGROUP_SCHED) && defined(CONFIG_RT_GROUP_SCHED)
- char path[128] = "";
+ char path[128];
struct task_group *tg = rt_rq->tg;
- cgroup_path(tg->css.cgroup, path, sizeof(path));
+ task_group_path(tg, path, sizeof(path));
SEQ_printf(m, "\nrt_rq[%d]:%s\n", cpu, path);
#else
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists