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...@linux.intel.com> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Andi Kleen <a...@linux.intel.com> Cc: Tim Chen <tim.c.c...@linux.intel.com> Cc: Dave Hansen <dave.han...@intel.com> Cc: Arjan van de Ven <ar...@linux.intel.com> --- 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 9d428d5a0ac8..ea7a981f289c 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 d0e1f1522a78..1de9ba1b064f 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -73,6 +73,8 @@ struct proc_dir_entry *proc_create_net_single_write(const char *name, umode_t mo int (*show)(struct seq_file *, void *), proc_write_t write, void *data); +/* Add support for architecture specific output in /proc/pid/status */ +extern void arch_proc_pid_status(struct seq_file *m, struct task_struct *task); #else /* CONFIG_PROC_FS */ -- 2.17.1