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proc: convert /proc/$PID/syscall 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>
This commit is contained in:
Alexey Dobriyan 2014-08-08 14:21:39 -07:00 committed by Linus Torvalds
parent 1c963eb135
commit 09d93bd627
1 changed files with 7 additions and 6 deletions
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13
fs/proc/base.c
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@ -482,7 +482,8 @@ static int proc_pid_limits(struct seq_file *m, struct pid_namespace *ns,
}
#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
static int proc_pid_syscall(struct task_struct *task, char *buffer)
static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *task)
{
long nr;
unsigned long args[6], sp, pc;
@ -491,11 +492,11 @@ static int proc_pid_syscall(struct task_struct *task, char *buffer)
return res;
if (task_current_syscall(task, &nr, args, 6, &sp, &pc))
res = sprintf(buffer, "running\n");
seq_puts(m, "running\n");
else if (nr < 0)
res = sprintf(buffer, "%ld 0x%lx 0x%lx\n", nr, sp, pc);
seq_printf(m, "%ld 0x%lx 0x%lx\n", nr, sp, pc);
else
res = sprintf(buffer,
seq_printf(m,
"%ld 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx\n",
nr,
args[0], args[1], args[2], args[3], args[4], args[5],
@ -2564,7 +2565,7 @@ static const struct pid_entry tgid_base_stuff[] = {
#endif
REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
INF("syscall", S_IRUSR, proc_pid_syscall),
ONE("syscall", S_IRUSR, proc_pid_syscall),
#endif
INF("cmdline", S_IRUGO, proc_pid_cmdline),
ONE("stat", S_IRUGO, proc_tgid_stat),
@ -2900,7 +2901,7 @@ static const struct pid_entry tid_base_stuff[] = {
#endif
REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
INF("syscall", S_IRUSR, proc_pid_syscall),
ONE("syscall", S_IRUSR, proc_pid_syscall),
#endif
INF("cmdline", S_IRUGO, proc_pid_cmdline),
ONE("stat", S_IRUGO, proc_tid_stat),