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>
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@ -482,7 +482,8 @@ static int proc_pid_limits(struct seq_file *m, struct pid_namespace *ns,
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}
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#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
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static int proc_pid_syscall(struct task_struct *task, char *buffer)
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static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns,
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struct pid *pid, struct task_struct *task)
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{
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long nr;
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unsigned long args[6], sp, pc;
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@ -491,11 +492,11 @@ static int proc_pid_syscall(struct task_struct *task, char *buffer)
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return res;
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if (task_current_syscall(task, &nr, args, 6, &sp, &pc))
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res = sprintf(buffer, "running\n");
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seq_puts(m, "running\n");
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else if (nr < 0)
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res = sprintf(buffer, "%ld 0x%lx 0x%lx\n", nr, sp, pc);
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seq_printf(m, "%ld 0x%lx 0x%lx\n", nr, sp, pc);
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else
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res = sprintf(buffer,
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seq_printf(m,
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"%ld 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx\n",
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nr,
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args[0], args[1], args[2], args[3], args[4], args[5],
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@ -2564,7 +2565,7 @@ static const struct pid_entry tgid_base_stuff[] = {
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#endif
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REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
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#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
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INF("syscall", S_IRUSR, proc_pid_syscall),
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ONE("syscall", S_IRUSR, proc_pid_syscall),
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#endif
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INF("cmdline", S_IRUGO, proc_pid_cmdline),
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ONE("stat", S_IRUGO, proc_tgid_stat),
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@ -2900,7 +2901,7 @@ static const struct pid_entry tid_base_stuff[] = {
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#endif
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REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
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#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
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INF("syscall", S_IRUSR, proc_pid_syscall),
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ONE("syscall", S_IRUSR, proc_pid_syscall),
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#endif
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INF("cmdline", S_IRUGO, proc_pid_cmdline),
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ONE("stat", S_IRUGO, proc_tid_stat),
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