| From | Josh Poimboeuf <> | Subject | [RFC PATCH 7/9] proc: add /proc/<pid>/universe to show livepatch status | Date | Mon, 9 Feb 2015 11:31:19 -0600 |
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Expose the per-task klp_universe value so users can determine which tasks are holding up completion of a patching operation.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> --- fs/proc/base.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/fs/proc/base.c b/fs/proc/base.c index 3f3d7ae..b9fe6b5 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2528,6 +2528,14 @@ static int proc_pid_personality(struct seq_file *m, struct pid_namespace *ns, return err; } +#ifdef CONFIG_LIVEPATCH +static int proc_pid_klp_universe(struct seq_file *m, struct pid_namespace *ns, + struct pid *pid, struct task_struct *task) +{ + return seq_printf(m, "%d\n", task->klp_universe); +} +#endif /* CONFIG_LIVEPATCH */ + /* * Thread groups */ @@ -2628,6 +2636,9 @@ static const struct pid_entry tgid_base_stuff[] = { #ifdef CONFIG_CHECKPOINT_RESTORE REG("timers", S_IRUGO, proc_timers_operations), #endif +#ifdef CONFIG_LIVEPATCH + ONE("universe", S_IRUGO, proc_pid_klp_universe), +#endif }; static int proc_tgid_base_readdir(struct file *file, struct dir_context *ctx) -- 2.1.0
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