* : base.c too.
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/time.h>
#include <linux/highmem.h>
#include <linux/file.h>
#include <linux/times.h>
-#include <linux/vs_base.h>
+#include <linux/cpuset.h>
+#include <linux/tracehook.h>
+#include <linux/rcupdate.h>
+#include <linux/delayacct.h>
#include <linux/vs_context.h>
#include <linux/vs_network.h>
-#include <linux/vs_cvirt.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/io.h>
#include <asm/processor.h>
+#include "internal.h"
/* Gcc optimizes away "strlen(x)" for constant x */
#define ADDBUF(buffer, string) \
"D (disk sleep)", /* 2 */
"T (stopped)", /* 4 */
"T (tracing stop)", /* 8 */
- "Z (zombie)", /* 16 */
- "X (dead)", /* 32 */
- "H (on hold)" /* 64 */
+ "H (on hold)", /* 16 */
+ "Z (zombie)", /* 32 */
+ "X (dead)", /* 64 */
};
static inline const char * get_task_state(struct task_struct *tsk)
TASK_INTERRUPTIBLE |
TASK_UNINTERRUPTIBLE |
TASK_STOPPED |
- TASK_TRACED |
- TASK_ONHOLD)) |
+ TASK_TRACED |
+ TASK_ONHOLD)) |
(tsk->exit_state & (EXIT_ZOMBIE |
EXIT_DEAD));
const char **p = &task_state_array[0];
static inline char * task_state(struct task_struct *p, char *buffer)
{
+ struct task_struct *tracer;
+ pid_t pid, ptgid, tracer_pid, tgid;
struct group_info *group_info;
int g;
- pid_t pid, ppid, tppid, tgid;
+ struct fdtable *fdt = NULL;
- read_lock(&tasklist_lock);
+ rcu_read_lock();
+ tracer = tracehook_tracer_task(p);
+ tracer_pid = tracer == NULL ? 0 : tracer->pid;
tgid = vx_map_tgid(p->tgid);
pid = vx_map_pid(p->pid);
- ppid = vx_map_pid(p->real_parent->pid);
- tppid = vx_map_pid(p->parent->pid);
+ ptgid = vx_map_pid(pid_alive(p) ?
+ rcu_dereference(p->parent)->tgid : 0);
+
buffer += sprintf(buffer,
"State:\t%s\n"
"SleepAVG:\t%lu%%\n"
"Gid:\t%d\t%d\t%d\t%d\n",
get_task_state(p),
(p->sleep_avg/1024)*100/(1020000000/1024),
- tgid, pid, (pid > 1) ? ppid : 0,
- p->pid && p->ptrace ? tppid : 0,
+ tgid, pid, (pid > 1) ? ptgid : 0,
+ tracer_pid,
p->uid, p->euid, p->suid, p->fsuid,
p->gid, p->egid, p->sgid, p->fsgid);
- read_unlock(&tasklist_lock);
+
task_lock(p);
+ if (p->files)
+ fdt = files_fdtable(p->files);
buffer += sprintf(buffer,
"FDSize:\t%d\n"
"Groups:\t",
- p->files ? p->files->max_fds : 0);
+ fdt ? fdt->max_fds : 0);
+ rcu_read_unlock();
group_info = p->group_info;
get_group_info(group_info);
static inline char * task_sig(struct task_struct *p, char *buffer)
{
+ unsigned long flags;
sigset_t pending, shpending, blocked, ignored, caught;
int num_threads = 0;
+ unsigned long qsize = 0;
+ unsigned long qlim = 0;
sigemptyset(&pending);
sigemptyset(&shpending);
sigemptyset(&ignored);
sigemptyset(&caught);
- /* Gather all the data with the appropriate locks held */
- read_lock(&tasklist_lock);
- if (p->sighand) {
- spin_lock_irq(&p->sighand->siglock);
+ rcu_read_lock();
+ if (lock_task_sighand(p, &flags)) {
pending = p->pending.signal;
shpending = p->signal->shared_pending.signal;
blocked = p->blocked;
collect_sigign_sigcatch(p, &ignored, &caught);
num_threads = atomic_read(&p->signal->count);
- spin_unlock_irq(&p->sighand->siglock);
+ qsize = atomic_read(&p->user->sigpending);
+ qlim = p->signal->rlim[RLIMIT_SIGPENDING].rlim_cur;
+ unlock_task_sighand(p, &flags);
}
- read_unlock(&tasklist_lock);
+ rcu_read_unlock();
buffer += sprintf(buffer, "Threads:\t%d\n", num_threads);
+ buffer += sprintf(buffer, "SigQ:\t%lu/%lu\n", qsize, qlim);
/* render them all */
buffer = render_sigset_t("SigPnd:\t", &pending, buffer);
static inline char *task_cap(struct task_struct *p, char *buffer)
{
- return buffer + sprintf(buffer, "CapInh:\t%016x\n"
- "CapPrm:\t%016x\n"
- "CapEff:\t%016x\n",
- cap_t(p->cap_inheritable),
- cap_t(p->cap_permitted),
- cap_t(p->cap_effective));
+ struct vx_info *vxi = p->vx_info;
+
+ return buffer + sprintf(buffer,
+ "CapInh:\t%016x\n"
+ "CapPrm:\t%016x\n"
+ "CapEff:\t%016x\n",
+ (unsigned)vx_info_mbcap(vxi, p->cap_inheritable),
+ (unsigned)vx_info_mbcap(vxi, p->cap_permitted),
+ (unsigned)vx_info_mbcap(vxi, p->cap_effective));
}
int proc_pid_status(struct task_struct *task, char * buffer)
char * orig = buffer;
#ifdef CONFIG_VSERVER_LEGACY
struct vx_info *vxi;
+#endif
+#ifdef CONFIG_VSERVER_LEGACYNET
struct nx_info *nxi;
#endif
struct mm_struct *mm = get_task_mm(task);
}
buffer = task_sig(task, buffer);
buffer = task_cap(task, buffer);
+ buffer = cpuset_task_status_allowed(task, buffer);
+ if (task_vx_flags(task, VXF_HIDE_VINFO, 0))
+ goto skip;
#ifdef CONFIG_VSERVER_LEGACY
buffer += sprintf (buffer,"s_context: %d\n", vx_task_xid(task));
vxi = task_get_vx_info(task);
buffer += sprintf (buffer,"initpid: none\n");
}
put_vx_info(vxi);
+#else
+ buffer += sprintf (buffer,"VxID: %d\n", vx_task_xid(task));
+#endif
+#ifdef CONFIG_VSERVER_LEGACYNET
nxi = task_get_nx_info(task);
if (nxi) {
int i;
}
put_nx_info(nxi);
#endif
-#if defined(CONFIG_ARCH_S390)
+skip:
+#if defined(CONFIG_S390)
buffer = task_show_regs(task, buffer);
#endif
return buffer - orig;
}
-int proc_pid_stat(struct task_struct *task, char * buffer)
+static int do_task_stat(struct task_struct *task, char * buffer, int whole)
{
- unsigned long vsize, eip, esp, wchan;
+ unsigned long vsize, eip, esp, wchan = ~0UL;
long priority, nice;
- unsigned long long bias_uptime = 0;
int tty_pgrp = -1, tty_nr = 0;
sigset_t sigign, sigcatch;
char state;
int res;
- pid_t pid, ppid, pgid = -1, sid = -1;
+ pid_t pid = 0, ppid = 0, pgid = -1, sid = -1;
int num_threads = 0;
struct mm_struct *mm;
unsigned long long start_time;
- unsigned long cmin_flt = 0, cmaj_flt = 0, cutime = 0, cstime = 0;
+ unsigned long cmin_flt = 0, cmaj_flt = 0;
+ unsigned long min_flt = 0, maj_flt = 0;
+ cputime_t cutime, cstime, utime, stime;
+ unsigned long rsslim = 0;
char tcomm[sizeof(task->comm)];
+ unsigned long flags;
state = *get_task_state(task);
vsize = eip = esp = 0;
}
get_task_comm(tcomm, task);
- wchan = 0;
- if (current->uid == task->uid || current->euid == task->uid ||
- capable(CAP_SYS_NICE))
- wchan = get_wchan(task);
sigemptyset(&sigign);
sigemptyset(&sigcatch);
- read_lock(&tasklist_lock);
- if (task->sighand) {
- spin_lock_irq(&task->sighand->siglock);
- num_threads = atomic_read(&task->signal->count);
+ cutime = cstime = utime = stime = cputime_zero;
+
+ rcu_read_lock();
+ if (lock_task_sighand(task, &flags)) {
+ struct signal_struct *sig = task->signal;
+
+ if (sig->tty) {
+ tty_pgrp = sig->tty->pgrp;
+ tty_nr = new_encode_dev(tty_devnum(sig->tty));
+ }
+
+ num_threads = atomic_read(&sig->count);
collect_sigign_sigcatch(task, &sigign, &sigcatch);
- spin_unlock_irq(&task->sighand->siglock);
- }
- if (task->signal) {
- if (task->signal->tty) {
- tty_pgrp = task->signal->tty->pgrp;
- tty_nr = new_encode_dev(tty_devnum(task->signal->tty));
+
+ cmin_flt = sig->cmin_flt;
+ cmaj_flt = sig->cmaj_flt;
+ cutime = sig->cutime;
+ cstime = sig->cstime;
+ rsslim = sig->rlim[RLIMIT_RSS].rlim_cur;
+
+ /* add up live thread stats at the group level */
+ if (whole) {
+ struct task_struct *t = task;
+ do {
+ min_flt += t->min_flt;
+ maj_flt += t->maj_flt;
+ utime = cputime_add(utime, t->utime);
+ stime = cputime_add(stime, t->stime);
+ t = next_thread(t);
+ } while (t != task);
+
+ min_flt += sig->min_flt;
+ maj_flt += sig->maj_flt;
+ utime = cputime_add(utime, sig->utime);
+ stime = cputime_add(stime, sig->stime);
}
- pgid = process_group(task);
- sid = task->signal->session;
- cmin_flt = task->signal->cmin_flt;
- cmaj_flt = task->signal->cmaj_flt;
- cutime = task->signal->cutime;
- cstime = task->signal->cstime;
+
+ sid = signal_session(sig);
+ pid = vx_info_map_pid(task->vx_info, task->pid);
+ pgid = vx_info_map_pid(task->vx_info, process_group(task));
+ ppid = (pid > 1) ? vx_info_map_tgid(task->vx_info,
+ rcu_dereference(task->parent)->tgid) : 0;
+
+ unlock_task_sighand(task, &flags);
}
- if (task_vx_flags(task, VXF_VIRT_UPTIME, 0)) {
- bias_uptime = task->vx_info->cvirt.bias_uptime.tv_sec * NSEC_PER_SEC
- + task->vx_info->cvirt.bias_uptime.tv_nsec;
+ rcu_read_unlock();
+
+ if (!whole || num_threads<2) {
+ wchan = 0;
+ if (current->uid == task->uid || current->euid == task->uid ||
+ capable(CAP_SYS_NICE))
+ wchan = get_wchan(task);
+ }
+ if (!whole) {
+ min_flt = task->min_flt;
+ maj_flt = task->maj_flt;
+ utime = task->utime;
+ stime = task->stime;
}
- read_unlock(&tasklist_lock);
/* scale priority and nice values from timeslices to -20..20 */
/* to make it look like a "normal" Unix priority/nice value */
priority = task_prio(task);
nice = task_nice(task);
- read_lock(&tasklist_lock);
- pid = vx_info_map_pid(task->vx_info, task->pid);
- ppid = (!(pid > 1)) ? 0 :
- vx_info_map_pid(task->vx_info, task->real_parent->pid);
- pgid = vx_info_map_pid(task->vx_info, pgid);
- read_unlock(&tasklist_lock);
-
/* Temporary variable needed for gcc-2.96 */
/* convert timespec -> nsec*/
start_time = (unsigned long long)task->start_time.tv_sec * NSEC_PER_SEC
+ task->start_time.tv_nsec;
/* convert nsec -> ticks */
- start_time = nsec_to_clock_t(start_time - bias_uptime);
+ start_time = nsec_to_clock_t(start_time);
+
+ /* fixup start time for virt uptime */
+ if (vx_flags(VXF_VIRT_UPTIME, 0)) {
+ unsigned long long bias =
+ current->vx_info->cvirt.bias_clock;
+
+ if (start_time > bias)
+ start_time -= bias;
+ else
+ start_time = 0;
+ }
res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
-%lu %lu %lu %lu %lu %ld %ld %ld %ld %d %ld %llu %lu %ld %lu %lu %lu %lu %lu \
-%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n",
+%lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
+%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu %llu\n",
pid,
tcomm,
state,
tty_nr,
tty_pgrp,
task->flags,
- task->min_flt,
+ min_flt,
cmin_flt,
- task->maj_flt,
+ maj_flt,
cmaj_flt,
- jiffies_to_clock_t(task->utime),
- jiffies_to_clock_t(task->stime),
- jiffies_to_clock_t(cutime),
- jiffies_to_clock_t(cstime),
+ cputime_to_clock_t(utime),
+ cputime_to_clock_t(stime),
+ cputime_to_clock_t(cutime),
+ cputime_to_clock_t(cstime),
priority,
nice,
num_threads,
- jiffies_to_clock_t(task->it_real_value),
start_time,
vsize,
- mm ? mm->rss : 0, /* you might want to shift this left 3 */
- task->rlim[RLIMIT_RSS].rlim_cur,
+ mm ? get_mm_rss(mm) : 0,
+ rsslim,
mm ? mm->start_code : 0,
mm ? mm->end_code : 0,
mm ? mm->start_stack : 0,
task->exit_signal,
task_cpu(task),
task->rt_priority,
- task->policy);
+ task->policy,
+ (unsigned long long)delayacct_blkio_ticks(task));
if(mm)
mmput(mm);
return res;
}
+int proc_tid_stat(struct task_struct *task, char * buffer)
+{
+ return do_task_stat(task, buffer, 0);
+}
+
+int proc_tgid_stat(struct task_struct *task, char * buffer)
+{
+ return do_task_stat(task, buffer, 1);
+}
+
int proc_pid_statm(struct task_struct *task, char *buffer)
{
int size = 0, resident = 0, shared = 0, text = 0, lib = 0, data = 0;
return sprintf(buffer,"%d %d %d %d %d %d %d\n",
size, resident, shared, text, lib, data, 0);
}
-
-
-int proc_pid_delay(struct task_struct *task, char * buffer)
-{
- int res;
-
- res = sprintf(buffer,"%u %llu %llu %u %llu %u %llu\n",
- get_delay(task,runs),
- (unsigned long long)get_delay(task,runcpu_total),
- (unsigned long long)get_delay(task,waitcpu_total),
- get_delay(task,num_iowaits),
- (unsigned long long)get_delay(task,iowait_total),
- get_delay(task,num_memwaits),
- (unsigned long long)get_delay(task,mem_iowait_total)
- );
- return res;
-}
-
git://git.onelab.eu / linux-2.6.git / blobdiff