xfs_qm_stats.c 2.9 KB

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  1. /*
  2. * Copyright (c) 2000-2003 Silicon Graphics, Inc.
  3. * All Rights Reserved.
  4. *
  5. * This program is free software; you can redistribute it and/or
  6. * modify it under the terms of the GNU General Public License as
  7. * published by the Free Software Foundation.
  8. *
  9. * This program is distributed in the hope that it would be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. * GNU General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU General Public License
  15. * along with this program; if not, write the Free Software Foundation,
  16. * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  17. */
  18. #include "xfs.h"
  19. #include "xfs_fs.h"
  20. #include "xfs_bit.h"
  21. #include "xfs_log.h"
  22. #include "xfs_inum.h"
  23. #include "xfs_trans.h"
  24. #include "xfs_sb.h"
  25. #include "xfs_ag.h"
  26. #include "xfs_dir2.h"
  27. #include "xfs_alloc.h"
  28. #include "xfs_dmapi.h"
  29. #include "xfs_quota.h"
  30. #include "xfs_mount.h"
  31. #include "xfs_bmap_btree.h"
  32. #include "xfs_alloc_btree.h"
  33. #include "xfs_ialloc_btree.h"
  34. #include "xfs_dir2_sf.h"
  35. #include "xfs_attr_sf.h"
  36. #include "xfs_dinode.h"
  37. #include "xfs_inode.h"
  38. #include "xfs_ialloc.h"
  39. #include "xfs_itable.h"
  40. #include "xfs_bmap.h"
  41. #include "xfs_btree.h"
  42. #include "xfs_rtalloc.h"
  43. #include "xfs_error.h"
  44. #include "xfs_rw.h"
  45. #include "xfs_acl.h"
  46. #include "xfs_attr.h"
  47. #include "xfs_buf_item.h"
  48. #include "xfs_qm.h"
  49. struct xqmstats xqmstats;
  50. STATIC int
  51. xfs_qm_read_xfsquota(
  52. char *buffer,
  53. char **start,
  54. off_t offset,
  55. int count,
  56. int *eof,
  57. void *data)
  58. {
  59. int len;
  60. /* maximum; incore; ratio free to inuse; freelist */
  61. len = sprintf(buffer, "%d\t%d\t%d\t%u\n",
  62. ndquot,
  63. xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0,
  64. xfs_Gqm? xfs_Gqm->qm_dqfree_ratio : 0,
  65. xfs_Gqm? xfs_Gqm->qm_dqfreelist.qh_nelems : 0);
  66. if (offset >= len) {
  67. *start = buffer;
  68. *eof = 1;
  69. return 0;
  70. }
  71. *start = buffer + offset;
  72. if ((len -= offset) > count)
  73. return count;
  74. *eof = 1;
  75. return len;
  76. }
  77. STATIC int
  78. xfs_qm_read_stats(
  79. char *buffer,
  80. char **start,
  81. off_t offset,
  82. int count,
  83. int *eof,
  84. void *data)
  85. {
  86. int len;
  87. /* quota performance statistics */
  88. len = sprintf(buffer, "qm %u %u %u %u %u %u %u %u\n",
  89. xqmstats.xs_qm_dqreclaims,
  90. xqmstats.xs_qm_dqreclaim_misses,
  91. xqmstats.xs_qm_dquot_dups,
  92. xqmstats.xs_qm_dqcachemisses,
  93. xqmstats.xs_qm_dqcachehits,
  94. xqmstats.xs_qm_dqwants,
  95. xqmstats.xs_qm_dqshake_reclaims,
  96. xqmstats.xs_qm_dqinact_reclaims);
  97. if (offset >= len) {
  98. *start = buffer;
  99. *eof = 1;
  100. return 0;
  101. }
  102. *start = buffer + offset;
  103. if ((len -= offset) > count)
  104. return count;
  105. *eof = 1;
  106. return len;
  107. }
  108. void
  109. xfs_qm_init_procfs(void)
  110. {
  111. create_proc_read_entry("fs/xfs/xqmstat", 0, NULL, xfs_qm_read_stats, NULL);
  112. create_proc_read_entry("fs/xfs/xqm", 0, NULL, xfs_qm_read_xfsquota, NULL);
  113. }
  114. void
  115. xfs_qm_cleanup_procfs(void)
  116. {
  117. remove_proc_entry("fs/xfs/xqm", NULL);
  118. remove_proc_entry("fs/xfs/xqmstat", NULL);
  119. }