Re: [PATCH v13 1/3] /proc/pid/status: Add support for architecture specific output
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From: Thomas Gleixner <hidden>
Date: 2019-04-05 19:32:48
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On Sun, 24 Feb 2019, Aubrey Li wrote:
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 <redacted> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andi Kleen <redacted> Cc: Tim Chen <redacted> Cc: Dave Hansen <redacted> Cc: Arjan van de Ven <redacted>
This really lacks Cc: Linux API <redacted> Cc: Alexey Dobriyan <redacted> Cc: Andrew Morton <akpm@linux-foundation.org> Cc'ed now.
quoted hunk
--- 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