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-rw-r--r--fs/proc/array.c51
1 files changed, 25 insertions, 26 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c
index c6977796fafd..4cb81776a7ff 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -62,6 +62,8 @@
62#include <linux/mman.h> 62#include <linux/mman.h>
63#include <linux/proc_fs.h> 63#include <linux/proc_fs.h>
64#include <linux/ioport.h> 64#include <linux/ioport.h>
65#include <linux/uaccess.h>
66#include <linux/io.h>
65#include <linux/mm.h> 67#include <linux/mm.h>
66#include <linux/hugetlb.h> 68#include <linux/hugetlb.h>
67#include <linux/pagemap.h> 69#include <linux/pagemap.h>
@@ -76,9 +78,7 @@
76#include <linux/rcupdate.h> 78#include <linux/rcupdate.h>
77#include <linux/delayacct.h> 79#include <linux/delayacct.h>
78 80
79#include <asm/uaccess.h>
80#include <asm/pgtable.h> 81#include <asm/pgtable.h>
81#include <asm/io.h>
82#include <asm/processor.h> 82#include <asm/processor.h>
83#include "internal.h" 83#include "internal.h"
84 84
@@ -87,10 +87,10 @@
87do { memcpy(buffer, string, strlen(string)); \ 87do { memcpy(buffer, string, strlen(string)); \
88 buffer += strlen(string); } while (0) 88 buffer += strlen(string); } while (0)
89 89
90static inline char * task_name(struct task_struct *p, char * buf) 90static inline char *task_name(struct task_struct *p, char *buf)
91{ 91{
92 int i; 92 int i;
93 char * name; 93 char *name;
94 char tcomm[sizeof(p->comm)]; 94 char tcomm[sizeof(p->comm)];
95 95
96 get_task_comm(tcomm, p); 96 get_task_comm(tcomm, p);
@@ -138,7 +138,7 @@ static const char *task_state_array[] = {
138 "X (dead)" /* 32 */ 138 "X (dead)" /* 32 */
139}; 139};
140 140
141static inline const char * get_task_state(struct task_struct *tsk) 141static inline const char *get_task_state(struct task_struct *tsk)
142{ 142{
143 unsigned int state = (tsk->state & (TASK_RUNNING | 143 unsigned int state = (tsk->state & (TASK_RUNNING |
144 TASK_INTERRUPTIBLE | 144 TASK_INTERRUPTIBLE |
@@ -156,7 +156,7 @@ static inline const char * get_task_state(struct task_struct *tsk)
156 return *p; 156 return *p;
157} 157}
158 158
159static inline char * task_state(struct task_struct *p, char *buffer) 159static inline char *task_state(struct task_struct *p, char *buffer)
160{ 160{
161 struct group_info *group_info; 161 struct group_info *group_info;
162 int g; 162 int g;
@@ -172,8 +172,8 @@ static inline char * task_state(struct task_struct *p, char *buffer)
172 "Uid:\t%d\t%d\t%d\t%d\n" 172 "Uid:\t%d\t%d\t%d\t%d\n"
173 "Gid:\t%d\t%d\t%d\t%d\n", 173 "Gid:\t%d\t%d\t%d\t%d\n",
174 get_task_state(p), 174 get_task_state(p),
175 p->tgid, p->pid, 175 p->tgid, p->pid,
176 pid_alive(p) ? rcu_dereference(p->real_parent)->tgid : 0, 176 pid_alive(p) ? rcu_dereference(p->real_parent)->tgid : 0,
177 pid_alive(p) && p->ptrace ? rcu_dereference(p->parent)->pid : 0, 177 pid_alive(p) && p->ptrace ? rcu_dereference(p->parent)->pid : 0,
178 p->uid, p->euid, p->suid, p->fsuid, 178 p->uid, p->euid, p->suid, p->fsuid,
179 p->gid, p->egid, p->sgid, p->fsgid); 179 p->gid, p->egid, p->sgid, p->fsgid);
@@ -191,15 +191,15 @@ static inline char * task_state(struct task_struct *p, char *buffer)
191 get_group_info(group_info); 191 get_group_info(group_info);
192 task_unlock(p); 192 task_unlock(p);
193 193
194 for (g = 0; g < min(group_info->ngroups,NGROUPS_SMALL); g++) 194 for (g = 0; g < min(group_info->ngroups, NGROUPS_SMALL); g++)
195 buffer += sprintf(buffer, "%d ", GROUP_AT(group_info,g)); 195 buffer += sprintf(buffer, "%d ", GROUP_AT(group_info, g));
196 put_group_info(group_info); 196 put_group_info(group_info);
197 197
198 buffer += sprintf(buffer, "\n"); 198 buffer += sprintf(buffer, "\n");
199 return buffer; 199 return buffer;
200} 200}
201 201
202static char * render_sigset_t(const char *header, sigset_t *set, char *buffer) 202static char *render_sigset_t(const char *header, sigset_t *set, char *buffer)
203{ 203{
204 int i, len; 204 int i, len;
205 205
@@ -239,7 +239,7 @@ static void collect_sigign_sigcatch(struct task_struct *p, sigset_t *ign,
239 } 239 }
240} 240}
241 241
242static inline char * task_sig(struct task_struct *p, char *buffer) 242static inline char *task_sig(struct task_struct *p, char *buffer)
243{ 243{
244 unsigned long flags; 244 unsigned long flags;
245 sigset_t pending, shpending, blocked, ignored, caught; 245 sigset_t pending, shpending, blocked, ignored, caught;
@@ -289,14 +289,14 @@ static inline char *task_cap(struct task_struct *p, char *buffer)
289 cap_t(p->cap_effective)); 289 cap_t(p->cap_effective));
290} 290}
291 291
292int proc_pid_status(struct task_struct *task, char * buffer) 292int proc_pid_status(struct task_struct *task, char *buffer)
293{ 293{
294 char * orig = buffer; 294 char *orig = buffer;
295 struct mm_struct *mm = get_task_mm(task); 295 struct mm_struct *mm = get_task_mm(task);
296 296
297 buffer = task_name(task, buffer); 297 buffer = task_name(task, buffer);
298 buffer = task_state(task, buffer); 298 buffer = task_state(task, buffer);
299 299
300 if (mm) { 300 if (mm) {
301 buffer = task_mem(mm, buffer); 301 buffer = task_mem(mm, buffer);
302 mmput(mm); 302 mmput(mm);
@@ -344,8 +344,7 @@ static clock_t task_stime(struct task_struct *p)
344 return stime; 344 return stime;
345} 345}
346 346
347 347static int do_task_stat(struct task_struct *task, char *buffer, int whole)
348static int do_task_stat(struct task_struct *task, char * buffer, int whole)
349{ 348{
350 unsigned long vsize, eip, esp, wchan = ~0UL; 349 unsigned long vsize, eip, esp, wchan = ~0UL;
351 long priority, nice; 350 long priority, nice;
@@ -353,7 +352,7 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
353 sigset_t sigign, sigcatch; 352 sigset_t sigign, sigcatch;
354 char state; 353 char state;
355 int res; 354 int res;
356 pid_t ppid = 0, pgid = -1, sid = -1; 355 pid_t ppid = 0, pgid = -1, sid = -1;
357 int num_threads = 0; 356 int num_threads = 0;
358 struct mm_struct *mm; 357 struct mm_struct *mm;
359 unsigned long long start_time; 358 unsigned long long start_time;
@@ -424,7 +423,7 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
424 } 423 }
425 rcu_read_unlock(); 424 rcu_read_unlock();
426 425
427 if (!whole || num_threads<2) 426 if (!whole || num_threads < 2)
428 wchan = get_wchan(task); 427 wchan = get_wchan(task);
429 if (!whole) { 428 if (!whole) {
430 min_flt = task->min_flt; 429 min_flt = task->min_flt;
@@ -445,7 +444,7 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
445 /* convert nsec -> ticks */ 444 /* convert nsec -> ticks */
446 start_time = nsec_to_clock_t(start_time); 445 start_time = nsec_to_clock_t(start_time);
447 446
448 res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %u %lu \ 447 res = sprintf(buffer, "%d (%s) %c %d %d %d %d %d %u %lu \
449%lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \ 448%lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
450%lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu\n", 449%lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu\n",
451 task->pid, 450 task->pid,
@@ -471,7 +470,7 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
471 start_time, 470 start_time,
472 vsize, 471 vsize,
473 mm ? get_mm_rss(mm) : 0, 472 mm ? get_mm_rss(mm) : 0,
474 rsslim, 473 rsslim,
475 mm ? mm->start_code : 0, 474 mm ? mm->start_code : 0,
476 mm ? mm->end_code : 0, 475 mm ? mm->end_code : 0,
477 mm ? mm->start_stack : 0, 476 mm ? mm->start_stack : 0,
@@ -493,17 +492,17 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
493 task->rt_priority, 492 task->rt_priority,
494 task->policy, 493 task->policy,
495 (unsigned long long)delayacct_blkio_ticks(task)); 494 (unsigned long long)delayacct_blkio_ticks(task));
496 if(mm) 495 if (mm)
497 mmput(mm); 496 mmput(mm);
498 return res; 497 return res;
499} 498}
500 499
501int proc_tid_stat(struct task_struct *task, char * buffer) 500int proc_tid_stat(struct task_struct *task, char *buffer)
502{ 501{
503 return do_task_stat(task, buffer, 0); 502 return do_task_stat(task, buffer, 0);
504} 503}
505 504
506int proc_tgid_stat(struct task_struct *task, char * buffer) 505int proc_tgid_stat(struct task_struct *task, char *buffer)
507{ 506{
508 return do_task_stat(task, buffer, 1); 507 return do_task_stat(task, buffer, 1);
509} 508}
@@ -512,12 +511,12 @@ int proc_pid_statm(struct task_struct *task, char *buffer)
512{ 511{
513 int size = 0, resident = 0, shared = 0, text = 0, lib = 0, data = 0; 512 int size = 0, resident = 0, shared = 0, text = 0, lib = 0, data = 0;
514 struct mm_struct *mm = get_task_mm(task); 513 struct mm_struct *mm = get_task_mm(task);
515 514
516 if (mm) { 515 if (mm) {
517 size = task_statm(mm, &shared, &text, &data, &resident); 516 size = task_statm(mm, &shared, &text, &data, &resident);
518 mmput(mm); 517 mmput(mm);
519 } 518 }
520 519
521 return sprintf(buffer,"%d %d %d %d %d %d %d\n", 520 return sprintf(buffer, "%d %d %d %d %d %d %d\n",
522 size, resident, shared, text, lib, data, 0); 521 size, resident, shared, text, lib, data, 0);
523} 522}