xfs_qmops.c 3.4 KB

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  1. /*
  2. * Copyright (c) 2000-2005 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_types.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_dmapi.h"
  28. #include "xfs_mount.h"
  29. #include "xfs_quota.h"
  30. #include "xfs_error.h"
  31. STATIC struct xfs_dquot *
  32. xfs_dqvopchown_default(
  33. struct xfs_trans *tp,
  34. struct xfs_inode *ip,
  35. struct xfs_dquot **dqp,
  36. struct xfs_dquot *dq)
  37. {
  38. return NULL;
  39. }
  40. /*
  41. * Clear the quotaflags in memory and in the superblock.
  42. */
  43. int
  44. xfs_mount_reset_sbqflags(xfs_mount_t *mp)
  45. {
  46. int error;
  47. xfs_trans_t *tp;
  48. unsigned long s;
  49. mp->m_qflags = 0;
  50. /*
  51. * It is OK to look at sb_qflags here in mount path,
  52. * without SB_LOCK.
  53. */
  54. if (mp->m_sb.sb_qflags == 0)
  55. return 0;
  56. s = XFS_SB_LOCK(mp);
  57. mp->m_sb.sb_qflags = 0;
  58. XFS_SB_UNLOCK(mp, s);
  59. /*
  60. * if the fs is readonly, let the incore superblock run
  61. * with quotas off but don't flush the update out to disk
  62. */
  63. if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
  64. return 0;
  65. #ifdef QUOTADEBUG
  66. xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes");
  67. #endif
  68. tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
  69. if ((error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
  70. XFS_DEFAULT_LOG_COUNT))) {
  71. xfs_trans_cancel(tp, 0);
  72. xfs_fs_cmn_err(CE_ALERT, mp,
  73. "xfs_mount_reset_sbqflags: Superblock update failed!");
  74. return error;
  75. }
  76. xfs_mod_sb(tp, XFS_SB_QFLAGS);
  77. error = xfs_trans_commit(tp, 0, NULL);
  78. return error;
  79. }
  80. STATIC int
  81. xfs_noquota_init(
  82. xfs_mount_t *mp,
  83. uint *needquotamount,
  84. uint *quotaflags)
  85. {
  86. int error = 0;
  87. *quotaflags = 0;
  88. *needquotamount = B_FALSE;
  89. ASSERT(!XFS_IS_QUOTA_ON(mp));
  90. /*
  91. * If a file system had quotas running earlier, but decided to
  92. * mount without -o uquota/pquota/gquota options, revoke the
  93. * quotachecked license.
  94. */
  95. if (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT) {
  96. cmn_err(CE_NOTE,
  97. "XFS resetting qflags for filesystem %s",
  98. mp->m_fsname);
  99. error = xfs_mount_reset_sbqflags(mp);
  100. }
  101. return error;
  102. }
  103. xfs_qmops_t xfs_qmcore_stub = {
  104. .xfs_qminit = (xfs_qminit_t) xfs_noquota_init,
  105. .xfs_qmdone = (xfs_qmdone_t) fs_noerr,
  106. .xfs_qmmount = (xfs_qmmount_t) fs_noerr,
  107. .xfs_qmunmount = (xfs_qmunmount_t) fs_noerr,
  108. .xfs_dqrele = (xfs_dqrele_t) fs_noerr,
  109. .xfs_dqattach = (xfs_dqattach_t) fs_noerr,
  110. .xfs_dqdetach = (xfs_dqdetach_t) fs_noerr,
  111. .xfs_dqpurgeall = (xfs_dqpurgeall_t) fs_noerr,
  112. .xfs_dqvopalloc = (xfs_dqvopalloc_t) fs_noerr,
  113. .xfs_dqvopcreate = (xfs_dqvopcreate_t) fs_noerr,
  114. .xfs_dqvoprename = (xfs_dqvoprename_t) fs_noerr,
  115. .xfs_dqvopchown = xfs_dqvopchown_default,
  116. .xfs_dqvopchownresv = (xfs_dqvopchownresv_t) fs_noerr,
  117. };