Messages in this thread Patch in this message | | | From | Aubrey Li <> | Subject | [PATCH v14 1/3] /proc/pid/status: Add support for architecture specific output | Date | Wed, 10 Apr 2019 09:53:23 +0800 |
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The architecture specific information of the running processes could be useful to the userland. Add support to examine process architecture specific information externally.
Signed-off-by: Aubrey Li <aubrey.li@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Linux API <linux-api@vger.kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> --- fs/proc/array.c | 5 +++++ include/linux/proc_fs.h | 2 ++ 2 files changed, 7 insertions(+)
diff --git a/fs/proc/array.c b/fs/proc/array.c index 2edbb657f859..331592a61718 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -401,6 +401,10 @@ static inline void task_thp_status(struct seq_file *m, struct mm_struct *mm) seq_printf(m, "THP_enabled:\t%d\n", thp_enabled); } +void __weak arch_proc_pid_status(struct seq_file *m, struct task_struct *task) +{ +} + int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, struct pid *pid, struct task_struct *task) { @@ -424,6 +428,7 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, task_cpus_allowed(m, task); cpuset_task_status_allowed(m, task); task_context_switch_counts(m, task); + arch_proc_pid_status(m, task); return 0; } diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 52a283ba0465..bf4328cb58ed 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -74,6 +74,8 @@ struct proc_dir_entry *proc_create_net_single_write(const char *name, umode_t mo proc_write_t write, void *data); extern struct pid *tgid_pidfd_to_pid(const struct file *file); +/* Add support for architecture specific output in /proc/pid/status */ +void arch_proc_pid_status(struct seq_file *m, struct task_struct *task); #else /* CONFIG_PROC_FS */ -- 2.21.0
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