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proc: convert /proc/$PID/io to seq_file interface 

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Alexey Dobriyan 2014-08-08 14:21:50 -07:00 committed by Linus Torvalds
parent 6ba51e3751
commit 19aadc98d6
1 changed files with 10 additions and 8 deletions
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18
fs/proc/base.c
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@ -2398,7 +2398,7 @@ static const struct file_operations proc_coredump_filter_operations = {
#endif
#ifdef CONFIG_TASK_IO_ACCOUNTING
static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
static int do_io_accounting(struct task_struct *task, struct seq_file *m, int whole)
{
struct task_io_accounting acct = task->ioac;
unsigned long flags;
@ -2422,7 +2422,7 @@ static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
unlock_task_sighand(task, &flags);
}
result = sprintf(buffer,
result = seq_printf(m,
"rchar: %llu\n"
"wchar: %llu\n"
"syscr: %llu\n"
@ -2442,14 +2442,16 @@ out_unlock:
return result;
}
static int proc_tid_io_accounting(struct task_struct *task, char *buffer)
static int proc_tid_io_accounting(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *task)
{
return do_io_accounting(task, buffer, 0);
return do_io_accounting(task, m, 0);
}
static int proc_tgid_io_accounting(struct task_struct *task, char *buffer)
static int proc_tgid_io_accounting(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *task)
{
return do_io_accounting(task, buffer, 1);
return do_io_accounting(task, m, 1);
}
#endif /* CONFIG_TASK_IO_ACCOUNTING */
@ -2631,7 +2633,7 @@ static const struct pid_entry tgid_base_stuff[] = {
REG("coredump_filter", S_IRUGO|S_IWUSR, proc_coredump_filter_operations),
#endif
#ifdef CONFIG_TASK_IO_ACCOUNTING
INF("io", S_IRUSR, proc_tgid_io_accounting),
ONE("io", S_IRUSR, proc_tgid_io_accounting),
#endif
#ifdef CONFIG_HARDWALL
INF("hardwall", S_IRUGO, proc_pid_hardwall),
@ -2966,7 +2968,7 @@ static const struct pid_entry tid_base_stuff[] = {
REG("make-it-fail", S_IRUGO|S_IWUSR, proc_fault_inject_operations),
#endif
#ifdef CONFIG_TASK_IO_ACCOUNTING
INF("io", S_IRUSR, proc_tid_io_accounting),
ONE("io", S_IRUSR, proc_tid_io_accounting),
#endif
#ifdef CONFIG_HARDWALL
INF("hardwall", S_IRUGO, proc_pid_hardwall),