jfs_inode.c 2.8 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Copyright (C) International Business Machines Corp., 2000-2004
  4. */
  5. #include <linux/fs.h>
  6. #include <linux/quotaops.h>
  7. #include "jfs_incore.h"
  8. #include "jfs_inode.h"
  9. #include "jfs_filsys.h"
  10. #include "jfs_imap.h"
  11. #include "jfs_dinode.h"
  12. #include "jfs_debug.h"
  13. void jfs_set_inode_flags(struct inode *inode)
  14. {
  15. unsigned int flags = JFS_IP(inode)->mode2;
  16. unsigned int new_fl = 0;
  17. if (flags & JFS_IMMUTABLE_FL)
  18. new_fl |= S_IMMUTABLE;
  19. if (flags & JFS_APPEND_FL)
  20. new_fl |= S_APPEND;
  21. if (flags & JFS_NOATIME_FL)
  22. new_fl |= S_NOATIME;
  23. if (flags & JFS_DIRSYNC_FL)
  24. new_fl |= S_DIRSYNC;
  25. if (flags & JFS_SYNC_FL)
  26. new_fl |= S_SYNC;
  27. inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND | S_NOATIME |
  28. S_DIRSYNC | S_SYNC);
  29. }
  30. /*
  31. * NAME: ialloc()
  32. *
  33. * FUNCTION: Allocate a new inode
  34. *
  35. */
  36. struct inode *ialloc(struct inode *parent, umode_t mode)
  37. {
  38. struct super_block *sb = parent->i_sb;
  39. struct inode *inode;
  40. struct jfs_inode_info *jfs_inode;
  41. int rc;
  42. inode = new_inode(sb);
  43. if (!inode) {
  44. jfs_warn("ialloc: new_inode returned NULL!");
  45. return ERR_PTR(-ENOMEM);
  46. }
  47. jfs_inode = JFS_IP(inode);
  48. rc = diAlloc(parent, S_ISDIR(mode), inode);
  49. if (rc) {
  50. jfs_warn("ialloc: diAlloc returned %d!", rc);
  51. goto fail_put;
  52. }
  53. if (insert_inode_locked(inode) < 0) {
  54. rc = -EINVAL;
  55. goto fail_put;
  56. }
  57. inode_init_owner(inode, parent, mode);
  58. /*
  59. * New inodes need to save sane values on disk when
  60. * uid & gid mount options are used
  61. */
  62. jfs_inode->saved_uid = inode->i_uid;
  63. jfs_inode->saved_gid = inode->i_gid;
  64. /*
  65. * Allocate inode to quota.
  66. */
  67. rc = dquot_initialize(inode);
  68. if (rc)
  69. goto fail_drop;
  70. rc = dquot_alloc_inode(inode);
  71. if (rc)
  72. goto fail_drop;
  73. /* inherit flags from parent */
  74. jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT;
  75. if (S_ISDIR(mode)) {
  76. jfs_inode->mode2 |= IDIRECTORY;
  77. jfs_inode->mode2 &= ~JFS_DIRSYNC_FL;
  78. }
  79. else {
  80. jfs_inode->mode2 |= INLINEEA | ISPARSE;
  81. if (S_ISLNK(mode))
  82. jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL);
  83. }
  84. jfs_inode->mode2 |= inode->i_mode;
  85. inode->i_blocks = 0;
  86. inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
  87. jfs_inode->otime = inode->i_ctime.tv_sec;
  88. inode->i_generation = JFS_SBI(sb)->gengen++;
  89. jfs_inode->cflag = 0;
  90. /* Zero remaining fields */
  91. memset(&jfs_inode->acl, 0, sizeof(dxd_t));
  92. memset(&jfs_inode->ea, 0, sizeof(dxd_t));
  93. jfs_inode->next_index = 0;
  94. jfs_inode->acltype = 0;
  95. jfs_inode->btorder = 0;
  96. jfs_inode->btindex = 0;
  97. jfs_inode->bxflag = 0;
  98. jfs_inode->blid = 0;
  99. jfs_inode->atlhead = 0;
  100. jfs_inode->atltail = 0;
  101. jfs_inode->xtlid = 0;
  102. jfs_set_inode_flags(inode);
  103. jfs_info("ialloc returns inode = 0x%p", inode);
  104. return inode;
  105. fail_drop:
  106. dquot_drop(inode);
  107. inode->i_flags |= S_NOQUOTA;
  108. clear_nlink(inode);
  109. discard_new_inode(inode);
  110. return ERR_PTR(rc);
  111. fail_put:
  112. iput(inode);
  113. return ERR_PTR(rc);
  114. }