Messages in this thread Patch in this message | | | Date | Mon, 21 Sep 2009 11:06:27 +0200 | From | Heiko Carstens <> | Subject | [PATCH] Always show Cpus_allowed field in /proc/<pid>/status. |
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Subject: [PATCH] Always show Cpus_allowed fields in /proc/<pid>/status.
From: Heiko Carstens <heiko.carstens@de.ibm.com>
The Cpus_allowed fields in /proc/<pid>/status is currently only shown in case of CONFIG_CPUSETS. However their contents are also useful for the !CONFIG_CPUSETS case. So change the current behaviour and always show these fields.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> --- fs/proc/array.c | 11 +++++++++++ kernel/cpuset.c | 8 +------- 2 files changed, 12 insertions(+), 7 deletions(-)
Index: linux-2.6/fs/proc/array.c =================================================================== --- linux-2.6.orig/fs/proc/array.c +++ linux-2.6/fs/proc/array.c @@ -321,6 +321,16 @@ static inline void task_context_switch_c p->nivcsw); } +void task_cpus_allowed(struct seq_file *m, struct task_struct *task) +{ + seq_printf(m, "Cpus_allowed:\t"); + seq_cpumask(m, &task->cpus_allowed); + seq_printf(m, "\n"); + seq_printf(m, "Cpus_allowed_list:\t"); + seq_cpumask_list(m, &task->cpus_allowed); + seq_printf(m, "\n"); +} + int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, struct pid *pid, struct task_struct *task) { @@ -335,6 +345,7 @@ int proc_pid_status(struct seq_file *m, } task_sig(m, task); task_cap(m, task); + task_cpus_allowed(m, task); cpuset_task_status_allowed(m, task); #if defined(CONFIG_S390) task_show_regs(m, task); Index: linux-2.6/kernel/cpuset.c =================================================================== --- linux-2.6.orig/kernel/cpuset.c +++ linux-2.6/kernel/cpuset.c @@ -2499,15 +2499,9 @@ const struct file_operations proc_cpuset }; #endif /* CONFIG_PROC_PID_CPUSET */ -/* Display task cpus_allowed, mems_allowed in /proc/<pid>/status file. */ +/* Display task mems_allowed in /proc/<pid>/status file. */ void cpuset_task_status_allowed(struct seq_file *m, struct task_struct *task) { - seq_printf(m, "Cpus_allowed:\t"); - seq_cpumask(m, &task->cpus_allowed); - seq_printf(m, "\n"); - seq_printf(m, "Cpus_allowed_list:\t"); - seq_cpumask_list(m, &task->cpus_allowed); - seq_printf(m, "\n"); seq_printf(m, "Mems_allowed:\t"); seq_nodemask(m, &task->mems_allowed); seq_printf(m, "\n");
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