Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #include <linux/mm.h> |
| 2 | #include <linux/hugetlb.h> |
| 3 | #include <linux/mount.h> |
| 4 | #include <linux/seq_file.h> |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 5 | #include <linux/highmem.h> |
Christoph Lameter | 6e21c8f | 2005-09-03 15:54:45 -0700 | [diff] [blame] | 6 | #include <linux/pagemap.h> |
| 7 | #include <linux/mempolicy.h> |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 8 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #include <asm/elf.h> |
| 10 | #include <asm/uaccess.h> |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 11 | #include <asm/tlbflush.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include "internal.h" |
| 13 | |
| 14 | char *task_mem(struct mm_struct *mm, char *buffer) |
| 15 | { |
| 16 | unsigned long data, text, lib; |
Hugh Dickins | 365e9c87 | 2005-10-29 18:16:18 -0700 | [diff] [blame] | 17 | unsigned long hiwater_vm, total_vm, hiwater_rss, total_rss; |
| 18 | |
| 19 | /* |
| 20 | * Note: to minimize their overhead, mm maintains hiwater_vm and |
| 21 | * hiwater_rss only when about to *lower* total_vm or rss. Any |
| 22 | * collector of these hiwater stats must therefore get total_vm |
| 23 | * and rss too, which will usually be the higher. Barriers? not |
| 24 | * worth the effort, such snapshots can always be inconsistent. |
| 25 | */ |
| 26 | hiwater_vm = total_vm = mm->total_vm; |
| 27 | if (hiwater_vm < mm->hiwater_vm) |
| 28 | hiwater_vm = mm->hiwater_vm; |
| 29 | hiwater_rss = total_rss = get_mm_rss(mm); |
| 30 | if (hiwater_rss < mm->hiwater_rss) |
| 31 | hiwater_rss = mm->hiwater_rss; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
| 33 | data = mm->total_vm - mm->shared_vm - mm->stack_vm; |
| 34 | text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK)) >> 10; |
| 35 | lib = (mm->exec_vm << (PAGE_SHIFT-10)) - text; |
| 36 | buffer += sprintf(buffer, |
Hugh Dickins | 365e9c87 | 2005-10-29 18:16:18 -0700 | [diff] [blame] | 37 | "VmPeak:\t%8lu kB\n" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | "VmSize:\t%8lu kB\n" |
| 39 | "VmLck:\t%8lu kB\n" |
Hugh Dickins | 365e9c87 | 2005-10-29 18:16:18 -0700 | [diff] [blame] | 40 | "VmHWM:\t%8lu kB\n" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | "VmRSS:\t%8lu kB\n" |
| 42 | "VmData:\t%8lu kB\n" |
| 43 | "VmStk:\t%8lu kB\n" |
| 44 | "VmExe:\t%8lu kB\n" |
| 45 | "VmLib:\t%8lu kB\n" |
| 46 | "VmPTE:\t%8lu kB\n", |
Hugh Dickins | 365e9c87 | 2005-10-29 18:16:18 -0700 | [diff] [blame] | 47 | hiwater_vm << (PAGE_SHIFT-10), |
| 48 | (total_vm - mm->reserved_vm) << (PAGE_SHIFT-10), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | mm->locked_vm << (PAGE_SHIFT-10), |
Hugh Dickins | 365e9c87 | 2005-10-29 18:16:18 -0700 | [diff] [blame] | 50 | hiwater_rss << (PAGE_SHIFT-10), |
| 51 | total_rss << (PAGE_SHIFT-10), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | data << (PAGE_SHIFT-10), |
| 53 | mm->stack_vm << (PAGE_SHIFT-10), text, lib, |
| 54 | (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10); |
| 55 | return buffer; |
| 56 | } |
| 57 | |
| 58 | unsigned long task_vsize(struct mm_struct *mm) |
| 59 | { |
| 60 | return PAGE_SIZE * mm->total_vm; |
| 61 | } |
| 62 | |
| 63 | int task_statm(struct mm_struct *mm, int *shared, int *text, |
| 64 | int *data, int *resident) |
| 65 | { |
Hugh Dickins | 4294621 | 2005-10-29 18:16:05 -0700 | [diff] [blame] | 66 | *shared = get_mm_counter(mm, file_rss); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | *text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK)) |
| 68 | >> PAGE_SHIFT; |
| 69 | *data = mm->total_vm - mm->shared_vm; |
Hugh Dickins | 4294621 | 2005-10-29 18:16:05 -0700 | [diff] [blame] | 70 | *resident = *shared + get_mm_counter(mm, anon_rss); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | return mm->total_vm; |
| 72 | } |
| 73 | |
| 74 | int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt) |
| 75 | { |
| 76 | struct vm_area_struct * vma; |
| 77 | int result = -ENOENT; |
| 78 | struct task_struct *task = proc_task(inode); |
| 79 | struct mm_struct * mm = get_task_mm(task); |
| 80 | |
| 81 | if (!mm) |
| 82 | goto out; |
| 83 | down_read(&mm->mmap_sem); |
| 84 | |
| 85 | vma = mm->mmap; |
| 86 | while (vma) { |
| 87 | if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file) |
| 88 | break; |
| 89 | vma = vma->vm_next; |
| 90 | } |
| 91 | |
| 92 | if (vma) { |
| 93 | *mnt = mntget(vma->vm_file->f_vfsmnt); |
| 94 | *dentry = dget(vma->vm_file->f_dentry); |
| 95 | result = 0; |
| 96 | } |
| 97 | |
| 98 | up_read(&mm->mmap_sem); |
| 99 | mmput(mm); |
| 100 | out: |
| 101 | return result; |
| 102 | } |
| 103 | |
| 104 | static void pad_len_spaces(struct seq_file *m, int len) |
| 105 | { |
| 106 | len = 25 + sizeof(void*) * 6 - len; |
| 107 | if (len < 1) |
| 108 | len = 1; |
| 109 | seq_printf(m, "%*c", len, ' '); |
| 110 | } |
| 111 | |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 112 | struct mem_size_stats |
| 113 | { |
| 114 | unsigned long resident; |
| 115 | unsigned long shared_clean; |
| 116 | unsigned long shared_dirty; |
| 117 | unsigned long private_clean; |
| 118 | unsigned long private_dirty; |
| 119 | }; |
| 120 | |
| 121 | static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats *mss) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | { |
| 123 | struct task_struct *task = m->private; |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 124 | struct vm_area_struct *vma = v; |
| 125 | struct mm_struct *mm = vma->vm_mm; |
| 126 | struct file *file = vma->vm_file; |
| 127 | int flags = vma->vm_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | unsigned long ino = 0; |
| 129 | dev_t dev = 0; |
| 130 | int len; |
| 131 | |
| 132 | if (file) { |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 133 | struct inode *inode = vma->vm_file->f_dentry->d_inode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | dev = inode->i_sb->s_dev; |
| 135 | ino = inode->i_ino; |
| 136 | } |
| 137 | |
| 138 | seq_printf(m, "%08lx-%08lx %c%c%c%c %08lx %02x:%02x %lu %n", |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 139 | vma->vm_start, |
| 140 | vma->vm_end, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | flags & VM_READ ? 'r' : '-', |
| 142 | flags & VM_WRITE ? 'w' : '-', |
| 143 | flags & VM_EXEC ? 'x' : '-', |
| 144 | flags & VM_MAYSHARE ? 's' : 'p', |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 145 | vma->vm_pgoff << PAGE_SHIFT, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | MAJOR(dev), MINOR(dev), ino, &len); |
| 147 | |
| 148 | /* |
| 149 | * Print the dentry name for named mappings, and a |
| 150 | * special [heap] marker for the heap: |
| 151 | */ |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 152 | if (file) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | pad_len_spaces(m, len); |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 154 | seq_path(m, file->f_vfsmnt, file->f_dentry, "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | } else { |
| 156 | if (mm) { |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 157 | if (vma->vm_start <= mm->start_brk && |
| 158 | vma->vm_end >= mm->brk) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | pad_len_spaces(m, len); |
| 160 | seq_puts(m, "[heap]"); |
| 161 | } else { |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 162 | if (vma->vm_start <= mm->start_stack && |
| 163 | vma->vm_end >= mm->start_stack) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | |
| 165 | pad_len_spaces(m, len); |
| 166 | seq_puts(m, "[stack]"); |
| 167 | } |
| 168 | } |
| 169 | } else { |
| 170 | pad_len_spaces(m, len); |
| 171 | seq_puts(m, "[vdso]"); |
| 172 | } |
| 173 | } |
| 174 | seq_putc(m, '\n'); |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 175 | |
| 176 | if (mss) |
| 177 | seq_printf(m, |
| 178 | "Size: %8lu kB\n" |
| 179 | "Rss: %8lu kB\n" |
| 180 | "Shared_Clean: %8lu kB\n" |
| 181 | "Shared_Dirty: %8lu kB\n" |
| 182 | "Private_Clean: %8lu kB\n" |
| 183 | "Private_Dirty: %8lu kB\n", |
| 184 | (vma->vm_end - vma->vm_start) >> 10, |
| 185 | mss->resident >> 10, |
| 186 | mss->shared_clean >> 10, |
| 187 | mss->shared_dirty >> 10, |
| 188 | mss->private_clean >> 10, |
| 189 | mss->private_dirty >> 10); |
| 190 | |
| 191 | if (m->count < m->size) /* vma is copied successfully */ |
| 192 | m->version = (vma != get_gate_vma(task))? vma->vm_start: 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | return 0; |
| 194 | } |
| 195 | |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 196 | static int show_map(struct seq_file *m, void *v) |
| 197 | { |
Luiz Fernando Capitulino | 0f5c79f | 2005-11-13 16:07:20 -0800 | [diff] [blame] | 198 | return show_map_internal(m, v, NULL); |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 199 | } |
| 200 | |
| 201 | static void smaps_pte_range(struct vm_area_struct *vma, pmd_t *pmd, |
| 202 | unsigned long addr, unsigned long end, |
| 203 | struct mem_size_stats *mss) |
| 204 | { |
| 205 | pte_t *pte, ptent; |
Hugh Dickins | 705e87c | 2005-10-29 18:16:27 -0700 | [diff] [blame] | 206 | spinlock_t *ptl; |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 207 | struct page *page; |
| 208 | |
Hugh Dickins | 705e87c | 2005-10-29 18:16:27 -0700 | [diff] [blame] | 209 | pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl); |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 210 | do { |
| 211 | ptent = *pte; |
Hugh Dickins | 705e87c | 2005-10-29 18:16:27 -0700 | [diff] [blame] | 212 | if (!pte_present(ptent)) |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 213 | continue; |
| 214 | |
| 215 | mss->resident += PAGE_SIZE; |
Nick Piggin | ad820c5 | 2006-03-06 15:42:58 -0800 | [diff] [blame] | 216 | |
| 217 | page = vm_normal_page(vma, addr, ptent); |
| 218 | if (!page) |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 219 | continue; |
| 220 | |
Nick Piggin | ad820c5 | 2006-03-06 15:42:58 -0800 | [diff] [blame] | 221 | if (page_mapcount(page) >= 2) { |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 222 | if (pte_dirty(ptent)) |
| 223 | mss->shared_dirty += PAGE_SIZE; |
| 224 | else |
| 225 | mss->shared_clean += PAGE_SIZE; |
| 226 | } else { |
| 227 | if (pte_dirty(ptent)) |
| 228 | mss->private_dirty += PAGE_SIZE; |
| 229 | else |
| 230 | mss->private_clean += PAGE_SIZE; |
| 231 | } |
| 232 | } while (pte++, addr += PAGE_SIZE, addr != end); |
Hugh Dickins | 705e87c | 2005-10-29 18:16:27 -0700 | [diff] [blame] | 233 | pte_unmap_unlock(pte - 1, ptl); |
| 234 | cond_resched(); |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 235 | } |
| 236 | |
| 237 | static inline void smaps_pmd_range(struct vm_area_struct *vma, pud_t *pud, |
| 238 | unsigned long addr, unsigned long end, |
| 239 | struct mem_size_stats *mss) |
| 240 | { |
| 241 | pmd_t *pmd; |
| 242 | unsigned long next; |
| 243 | |
| 244 | pmd = pmd_offset(pud, addr); |
| 245 | do { |
| 246 | next = pmd_addr_end(addr, end); |
| 247 | if (pmd_none_or_clear_bad(pmd)) |
| 248 | continue; |
| 249 | smaps_pte_range(vma, pmd, addr, next, mss); |
| 250 | } while (pmd++, addr = next, addr != end); |
| 251 | } |
| 252 | |
| 253 | static inline void smaps_pud_range(struct vm_area_struct *vma, pgd_t *pgd, |
| 254 | unsigned long addr, unsigned long end, |
| 255 | struct mem_size_stats *mss) |
| 256 | { |
| 257 | pud_t *pud; |
| 258 | unsigned long next; |
| 259 | |
| 260 | pud = pud_offset(pgd, addr); |
| 261 | do { |
| 262 | next = pud_addr_end(addr, end); |
| 263 | if (pud_none_or_clear_bad(pud)) |
| 264 | continue; |
| 265 | smaps_pmd_range(vma, pud, addr, next, mss); |
| 266 | } while (pud++, addr = next, addr != end); |
| 267 | } |
| 268 | |
| 269 | static inline void smaps_pgd_range(struct vm_area_struct *vma, |
| 270 | unsigned long addr, unsigned long end, |
| 271 | struct mem_size_stats *mss) |
| 272 | { |
| 273 | pgd_t *pgd; |
| 274 | unsigned long next; |
| 275 | |
| 276 | pgd = pgd_offset(vma->vm_mm, addr); |
| 277 | do { |
| 278 | next = pgd_addr_end(addr, end); |
| 279 | if (pgd_none_or_clear_bad(pgd)) |
| 280 | continue; |
| 281 | smaps_pud_range(vma, pgd, addr, next, mss); |
| 282 | } while (pgd++, addr = next, addr != end); |
| 283 | } |
| 284 | |
| 285 | static int show_smap(struct seq_file *m, void *v) |
| 286 | { |
| 287 | struct vm_area_struct *vma = v; |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 288 | struct mem_size_stats mss; |
| 289 | |
| 290 | memset(&mss, 0, sizeof mss); |
Nick Piggin | 5ddfae1 | 2006-03-06 15:42:57 -0800 | [diff] [blame] | 291 | if (vma->vm_mm && !is_vm_hugetlb_page(vma)) |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 292 | smaps_pgd_range(vma, vma->vm_start, vma->vm_end, &mss); |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 293 | return show_map_internal(m, v, &mss); |
| 294 | } |
| 295 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | static void *m_start(struct seq_file *m, loff_t *pos) |
| 297 | { |
| 298 | struct task_struct *task = m->private; |
| 299 | unsigned long last_addr = m->version; |
| 300 | struct mm_struct *mm; |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 301 | struct vm_area_struct *vma, *tail_vma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | loff_t l = *pos; |
| 303 | |
| 304 | /* |
| 305 | * We remember last_addr rather than next_addr to hit with |
| 306 | * mmap_cache most of the time. We have zero last_addr at |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 307 | * the beginning and also after lseek. We will have -1 last_addr |
| 308 | * after the end of the vmas. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | */ |
| 310 | |
| 311 | if (last_addr == -1UL) |
| 312 | return NULL; |
| 313 | |
| 314 | mm = get_task_mm(task); |
| 315 | if (!mm) |
| 316 | return NULL; |
| 317 | |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 318 | tail_vma = get_gate_vma(task); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | down_read(&mm->mmap_sem); |
| 320 | |
| 321 | /* Start with last addr hint */ |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 322 | if (last_addr && (vma = find_vma(mm, last_addr))) { |
| 323 | vma = vma->vm_next; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | goto out; |
| 325 | } |
| 326 | |
| 327 | /* |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 328 | * Check the vma index is within the range and do |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | * sequential scan until m_index. |
| 330 | */ |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 331 | vma = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | if ((unsigned long)l < mm->map_count) { |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 333 | vma = mm->mmap; |
| 334 | while (l-- && vma) |
| 335 | vma = vma->vm_next; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | goto out; |
| 337 | } |
| 338 | |
| 339 | if (l != mm->map_count) |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 340 | tail_vma = NULL; /* After gate vma */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | |
| 342 | out: |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 343 | if (vma) |
| 344 | return vma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 346 | /* End of vmas has been reached */ |
| 347 | m->version = (tail_vma != NULL)? 0: -1UL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | up_read(&mm->mmap_sem); |
| 349 | mmput(mm); |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 350 | return tail_vma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | } |
| 352 | |
| 353 | static void m_stop(struct seq_file *m, void *v) |
| 354 | { |
| 355 | struct task_struct *task = m->private; |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 356 | struct vm_area_struct *vma = v; |
| 357 | if (vma && vma != get_gate_vma(task)) { |
| 358 | struct mm_struct *mm = vma->vm_mm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | up_read(&mm->mmap_sem); |
| 360 | mmput(mm); |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | static void *m_next(struct seq_file *m, void *v, loff_t *pos) |
| 365 | { |
| 366 | struct task_struct *task = m->private; |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 367 | struct vm_area_struct *vma = v; |
| 368 | struct vm_area_struct *tail_vma = get_gate_vma(task); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | |
| 370 | (*pos)++; |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 371 | if (vma && (vma != tail_vma) && vma->vm_next) |
| 372 | return vma->vm_next; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | m_stop(m, v); |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 374 | return (vma != tail_vma)? tail_vma: NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | } |
| 376 | |
| 377 | struct seq_operations proc_pid_maps_op = { |
| 378 | .start = m_start, |
| 379 | .next = m_next, |
| 380 | .stop = m_stop, |
| 381 | .show = show_map |
| 382 | }; |
Christoph Lameter | 6e21c8f | 2005-09-03 15:54:45 -0700 | [diff] [blame] | 383 | |
Mauricio Lin | e070ad4 | 2005-09-03 15:55:10 -0700 | [diff] [blame] | 384 | struct seq_operations proc_pid_smaps_op = { |
| 385 | .start = m_start, |
| 386 | .next = m_next, |
| 387 | .stop = m_stop, |
| 388 | .show = show_smap |
| 389 | }; |
| 390 | |
Christoph Lameter | 6e21c8f | 2005-09-03 15:54:45 -0700 | [diff] [blame] | 391 | #ifdef CONFIG_NUMA |
Christoph Lameter | 1a75a6c | 2006-01-08 01:01:02 -0800 | [diff] [blame] | 392 | extern int show_numa_map(struct seq_file *m, void *v); |
Christoph Lameter | 6e21c8f | 2005-09-03 15:54:45 -0700 | [diff] [blame] | 393 | |
| 394 | struct seq_operations proc_pid_numa_maps_op = { |
Christoph Lameter | 1a75a6c | 2006-01-08 01:01:02 -0800 | [diff] [blame] | 395 | .start = m_start, |
| 396 | .next = m_next, |
| 397 | .stop = m_stop, |
| 398 | .show = show_numa_map |
Christoph Lameter | 6e21c8f | 2005-09-03 15:54:45 -0700 | [diff] [blame] | 399 | }; |
| 400 | #endif |