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-rw-r--r--fs/ext4/acl.c188
-rw-r--r--fs/ext4/extents.c2
-rw-r--r--fs/ext4/inode.c5
-rw-r--r--fs/ext4/resize.c79
-rw-r--r--fs/ext4/super.c283
-rw-r--r--fs/ext4/xattr.c2
6 files changed, 277 insertions, 282 deletions
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index c7d04e165446..694ed6fadcc8 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -40,34 +40,35 @@ ext4_acl_from_disk(const void *value, size_t size)
40 acl = posix_acl_alloc(count, GFP_NOFS); 40 acl = posix_acl_alloc(count, GFP_NOFS);
41 if (!acl) 41 if (!acl)
42 return ERR_PTR(-ENOMEM); 42 return ERR_PTR(-ENOMEM);
43 for (n=0; n < count; n++) { 43 for (n = 0; n < count; n++) {
44 ext4_acl_entry *entry = 44 ext4_acl_entry *entry =
45 (ext4_acl_entry *)value; 45 (ext4_acl_entry *)value;
46 if ((char *)value + sizeof(ext4_acl_entry_short) > end) 46 if ((char *)value + sizeof(ext4_acl_entry_short) > end)
47 goto fail; 47 goto fail;
48 acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag); 48 acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag);
49 acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm); 49 acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
50 switch(acl->a_entries[n].e_tag) { 50
51 case ACL_USER_OBJ: 51 switch (acl->a_entries[n].e_tag) {
52 case ACL_GROUP_OBJ: 52 case ACL_USER_OBJ:
53 case ACL_MASK: 53 case ACL_GROUP_OBJ:
54 case ACL_OTHER: 54 case ACL_MASK:
55 value = (char *)value + 55 case ACL_OTHER:
56 sizeof(ext4_acl_entry_short); 56 value = (char *)value +
57 acl->a_entries[n].e_id = ACL_UNDEFINED_ID; 57 sizeof(ext4_acl_entry_short);
58 break; 58 acl->a_entries[n].e_id = ACL_UNDEFINED_ID;
59 59 break;
60 case ACL_USER: 60
61 case ACL_GROUP: 61 case ACL_USER:
62 value = (char *)value + sizeof(ext4_acl_entry); 62 case ACL_GROUP:
63 if ((char *)value > end) 63 value = (char *)value + sizeof(ext4_acl_entry);
64 goto fail; 64 if ((char *)value > end)
65 acl->a_entries[n].e_id =
66 le32_to_cpu(entry->e_id);
67 break;
68
69 default:
70 goto fail; 65 goto fail;
66 acl->a_entries[n].e_id =
67 le32_to_cpu(entry->e_id);
68 break;
69
70 default:
71 goto fail;
71 } 72 }
72 } 73 }
73 if (value != end) 74 if (value != end)
@@ -96,27 +97,26 @@ ext4_acl_to_disk(const struct posix_acl *acl, size_t *size)
96 return ERR_PTR(-ENOMEM); 97 return ERR_PTR(-ENOMEM);
97 ext_acl->a_version = cpu_to_le32(EXT4_ACL_VERSION); 98 ext_acl->a_version = cpu_to_le32(EXT4_ACL_VERSION);
98 e = (char *)ext_acl + sizeof(ext4_acl_header); 99 e = (char *)ext_acl + sizeof(ext4_acl_header);
99 for (n=0; n < acl->a_count; n++) { 100 for (n = 0; n < acl->a_count; n++) {
100 ext4_acl_entry *entry = (ext4_acl_entry *)e; 101 ext4_acl_entry *entry = (ext4_acl_entry *)e;
101 entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag); 102 entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag);
102 entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm); 103 entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm);
103 switch(acl->a_entries[n].e_tag) { 104 switch (acl->a_entries[n].e_tag) {
104 case ACL_USER: 105 case ACL_USER:
105 case ACL_GROUP: 106 case ACL_GROUP:
106 entry->e_id = 107 entry->e_id = cpu_to_le32(acl->a_entries[n].e_id);
107 cpu_to_le32(acl->a_entries[n].e_id); 108 e += sizeof(ext4_acl_entry);
108 e += sizeof(ext4_acl_entry); 109 break;
109 break; 110
110 111 case ACL_USER_OBJ:
111 case ACL_USER_OBJ: 112 case ACL_GROUP_OBJ:
112 case ACL_GROUP_OBJ: 113 case ACL_MASK:
113 case ACL_MASK: 114 case ACL_OTHER:
114 case ACL_OTHER: 115 e += sizeof(ext4_acl_entry_short);
115 e += sizeof(ext4_acl_entry_short); 116 break;
116 break; 117
117 118 default:
118 default: 119 goto fail;
119 goto fail;
120 } 120 }
121 } 121 }
122 return (char *)ext_acl; 122 return (char *)ext_acl;
@@ -167,23 +167,23 @@ ext4_get_acl(struct inode *inode, int type)
167 if (!test_opt(inode->i_sb, POSIX_ACL)) 167 if (!test_opt(inode->i_sb, POSIX_ACL))
168 return NULL; 168 return NULL;
169 169
170 switch(type) { 170 switch (type) {
171 case ACL_TYPE_ACCESS: 171 case ACL_TYPE_ACCESS:
172 acl = ext4_iget_acl(inode, &ei->i_acl); 172 acl = ext4_iget_acl(inode, &ei->i_acl);
173 if (acl != EXT4_ACL_NOT_CACHED) 173 if (acl != EXT4_ACL_NOT_CACHED)
174 return acl; 174 return acl;
175 name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS; 175 name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
176 break; 176 break;
177 177
178 case ACL_TYPE_DEFAULT: 178 case ACL_TYPE_DEFAULT:
179 acl = ext4_iget_acl(inode, &ei->i_default_acl); 179 acl = ext4_iget_acl(inode, &ei->i_default_acl);
180 if (acl != EXT4_ACL_NOT_CACHED) 180 if (acl != EXT4_ACL_NOT_CACHED)
181 return acl; 181 return acl;
182 name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT; 182 name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
183 break; 183 break;
184 184
185 default: 185 default:
186 return ERR_PTR(-EINVAL); 186 return ERR_PTR(-EINVAL);
187 } 187 }
188 retval = ext4_xattr_get(inode, name_index, "", NULL, 0); 188 retval = ext4_xattr_get(inode, name_index, "", NULL, 0);
189 if (retval > 0) { 189 if (retval > 0) {
@@ -201,14 +201,14 @@ ext4_get_acl(struct inode *inode, int type)
201 kfree(value); 201 kfree(value);
202 202
203 if (!IS_ERR(acl)) { 203 if (!IS_ERR(acl)) {
204 switch(type) { 204 switch (type) {
205 case ACL_TYPE_ACCESS: 205 case ACL_TYPE_ACCESS:
206 ext4_iset_acl(inode, &ei->i_acl, acl); 206 ext4_iset_acl(inode, &ei->i_acl, acl);
207 break; 207 break;
208 208
209 case ACL_TYPE_DEFAULT: 209 case ACL_TYPE_DEFAULT:
210 ext4_iset_acl(inode, &ei->i_default_acl, acl); 210 ext4_iset_acl(inode, &ei->i_default_acl, acl);
211 break; 211 break;
212 } 212 }
213 } 213 }
214 return acl; 214 return acl;
@@ -232,31 +232,31 @@ ext4_set_acl(handle_t *handle, struct inode *inode, int type,
232 if (S_ISLNK(inode->i_mode)) 232 if (S_ISLNK(inode->i_mode))
233 return -EOPNOTSUPP; 233 return -EOPNOTSUPP;
234 234
235 switch(type) { 235 switch (type) {
236 case ACL_TYPE_ACCESS: 236 case ACL_TYPE_ACCESS:
237 name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS; 237 name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
238 if (acl) { 238 if (acl) {
239 mode_t mode = inode->i_mode; 239 mode_t mode = inode->i_mode;
240 error = posix_acl_equiv_mode(acl, &mode); 240 error = posix_acl_equiv_mode(acl, &mode);
241 if (error < 0) 241 if (error < 0)
242 return error; 242 return error;
243 else { 243 else {
244 inode->i_mode = mode; 244 inode->i_mode = mode;
245 ext4_mark_inode_dirty(handle, inode); 245 ext4_mark_inode_dirty(handle, inode);
246 if (error == 0) 246 if (error == 0)
247 acl = NULL; 247 acl = NULL;
248 }
249 } 248 }
250 break; 249 }
250 break;
251 251
252 case ACL_TYPE_DEFAULT: 252 case ACL_TYPE_DEFAULT:
253 name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT; 253 name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
254 if (!S_ISDIR(inode->i_mode)) 254 if (!S_ISDIR(inode->i_mode))
255 return acl ? -EACCES : 0; 255 return acl ? -EACCES : 0;
256 break; 256 break;
257 257
258 default: 258 default:
259 return -EINVAL; 259 return -EINVAL;
260 } 260 }
261 if (acl) { 261 if (acl) {
262 value = ext4_acl_to_disk(acl, &size); 262 value = ext4_acl_to_disk(acl, &size);
@@ -269,14 +269,14 @@ ext4_set_acl(handle_t *handle, struct inode *inode, int type,
269 269
270 kfree(value); 270 kfree(value);
271 if (!error) { 271 if (!error) {
272 switch(type) { 272 switch (type) {
273 case ACL_TYPE_ACCESS: 273 case ACL_TYPE_ACCESS:
274 ext4_iset_acl(inode, &ei->i_acl, acl); 274 ext4_iset_acl(inode, &ei->i_acl, acl);
275 break; 275 break;
276 276
277 case ACL_TYPE_DEFAULT: 277 case ACL_TYPE_DEFAULT:
278 ext4_iset_acl(inode, &ei->i_default_acl, acl); 278 ext4_iset_acl(inode, &ei->i_default_acl, acl);
279 break; 279 break;
280 } 280 }
281 } 281 }
282 return error; 282 return error;
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index f7529e27d791..612c3d2c3824 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1441,7 +1441,7 @@ unsigned int ext4_ext_check_overlap(struct inode *inode,
1441 1441
1442 /* 1442 /*
1443 * get the next allocated block if the extent in the path 1443 * get the next allocated block if the extent in the path
1444 * is before the requested block(s) 1444 * is before the requested block(s)
1445 */ 1445 */
1446 if (b2 < b1) { 1446 if (b2 < b1) {
1447 b2 = ext4_ext_next_allocated_block(path); 1447 b2 = ext4_ext_next_allocated_block(path);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 85a862c9c4cc..0080999d2cd4 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1054,10 +1054,9 @@ static void ext4_da_update_reserve_space(struct inode *inode, int used)
1054 1054
1055 1055
1056/* 1056/*
1057 * The ext4_get_blocks_wrap() function try to look up the requested blocks,
1058 * and returns if the blocks are already mapped.
1057 * 1059 *
1058 *
1059 * ext4_ext4 get_block() wrapper function
1060 * It will do a look up first, and returns if the blocks already mapped.
1061 * Otherwise it takes the write lock of the i_data_sem and allocate blocks 1060 * Otherwise it takes the write lock of the i_data_sem and allocate blocks
1062 * and store the allocated blocks in the result buffer head and mark it 1061 * and store the allocated blocks in the result buffer head and mark it
1063 * mapped. 1062 * mapped.
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index f000fbe2cd93..0a9265164265 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -73,7 +73,7 @@ static int verify_group_input(struct super_block *sb,
73 "Inode bitmap not in group (block %llu)", 73 "Inode bitmap not in group (block %llu)",
74 (unsigned long long)input->inode_bitmap); 74 (unsigned long long)input->inode_bitmap);
75 else if (outside(input->inode_table, start, end) || 75 else if (outside(input->inode_table, start, end) ||
76 outside(itend - 1, start, end)) 76 outside(itend - 1, start, end))
77 ext4_warning(sb, __func__, 77 ext4_warning(sb, __func__,
78 "Inode table not in group (blocks %llu-%llu)", 78 "Inode table not in group (blocks %llu-%llu)",
79 (unsigned long long)input->inode_table, itend - 1); 79 (unsigned long long)input->inode_table, itend - 1);
@@ -104,7 +104,7 @@ static int verify_group_input(struct super_block *sb,
104 (unsigned long long)input->inode_bitmap, 104 (unsigned long long)input->inode_bitmap,
105 start, metaend - 1); 105 start, metaend - 1);
106 else if (inside(input->inode_table, start, metaend) || 106 else if (inside(input->inode_table, start, metaend) ||
107 inside(itend - 1, start, metaend)) 107 inside(itend - 1, start, metaend))
108 ext4_warning(sb, __func__, 108 ext4_warning(sb, __func__,
109 "Inode table (%llu-%llu) overlaps" 109 "Inode table (%llu-%llu) overlaps"
110 "GDT table (%llu-%llu)", 110 "GDT table (%llu-%llu)",
@@ -158,9 +158,9 @@ static int extend_or_restart_transaction(handle_t *handle, int thresh,
158 if (err) { 158 if (err) {
159 if ((err = ext4_journal_restart(handle, EXT4_MAX_TRANS_DATA))) 159 if ((err = ext4_journal_restart(handle, EXT4_MAX_TRANS_DATA)))
160 return err; 160 return err;
161 if ((err = ext4_journal_get_write_access(handle, bh))) 161 if ((err = ext4_journal_get_write_access(handle, bh)))
162 return err; 162 return err;
163 } 163 }
164 164
165 return 0; 165 return 0;
166} 166}
@@ -416,11 +416,11 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
416 "EXT4-fs: ext4_add_new_gdb: adding group block %lu\n", 416 "EXT4-fs: ext4_add_new_gdb: adding group block %lu\n",
417 gdb_num); 417 gdb_num);
418 418
419 /* 419 /*
420 * If we are not using the primary superblock/GDT copy don't resize, 420 * If we are not using the primary superblock/GDT copy don't resize,
421 * because the user tools have no way of handling this. Probably a 421 * because the user tools have no way of handling this. Probably a
422 * bad time to do it anyways. 422 * bad time to do it anyways.
423 */ 423 */
424 if (EXT4_SB(sb)->s_sbh->b_blocknr != 424 if (EXT4_SB(sb)->s_sbh->b_blocknr !=
425 le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) { 425 le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
426 ext4_warning(sb, __func__, 426 ext4_warning(sb, __func__,
@@ -507,14 +507,14 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
507 return 0; 507 return 0;
508 508
509exit_inode: 509exit_inode:
510 //ext4_journal_release_buffer(handle, iloc.bh); 510 /* ext4_journal_release_buffer(handle, iloc.bh); */
511 brelse(iloc.bh); 511 brelse(iloc.bh);
512exit_dindj: 512exit_dindj:
513 //ext4_journal_release_buffer(handle, dind); 513 /* ext4_journal_release_buffer(handle, dind); */
514exit_primary: 514exit_primary:
515 //ext4_journal_release_buffer(handle, *primary); 515 /* ext4_journal_release_buffer(handle, *primary); */
516exit_sbh: 516exit_sbh:
517 //ext4_journal_release_buffer(handle, *primary); 517 /* ext4_journal_release_buffer(handle, *primary); */
518exit_dind: 518exit_dind:
519 brelse(dind); 519 brelse(dind);
520exit_bh: 520exit_bh:
@@ -818,12 +818,12 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
818 if ((err = ext4_journal_get_write_access(handle, sbi->s_sbh))) 818 if ((err = ext4_journal_get_write_access(handle, sbi->s_sbh)))
819 goto exit_journal; 819 goto exit_journal;
820 820
821 /* 821 /*
822 * We will only either add reserved group blocks to a backup group 822 * We will only either add reserved group blocks to a backup group
823 * or remove reserved blocks for the first group in a new group block. 823 * or remove reserved blocks for the first group in a new group block.
824 * Doing both would be mean more complex code, and sane people don't 824 * Doing both would be mean more complex code, and sane people don't
825 * use non-sparse filesystems anymore. This is already checked above. 825 * use non-sparse filesystems anymore. This is already checked above.
826 */ 826 */
827 if (gdb_off) { 827 if (gdb_off) {
828 primary = sbi->s_group_desc[gdb_num]; 828 primary = sbi->s_group_desc[gdb_num];
829 if ((err = ext4_journal_get_write_access(handle, primary))) 829 if ((err = ext4_journal_get_write_access(handle, primary)))
@@ -835,24 +835,24 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
835 } else if ((err = add_new_gdb(handle, inode, input, &primary))) 835 } else if ((err = add_new_gdb(handle, inode, input, &primary)))
836 goto exit_journal; 836 goto exit_journal;
837 837
838 /* 838 /*
839 * OK, now we've set up the new group. Time to make it active. 839 * OK, now we've set up the new group. Time to make it active.
840 * 840 *
841 * Current kernels don't lock all allocations via lock_super(), 841 * Current kernels don't lock all allocations via lock_super(),
842 * so we have to be safe wrt. concurrent accesses the group 842 * so we have to be safe wrt. concurrent accesses the group
843 * data. So we need to be careful to set all of the relevant 843 * data. So we need to be careful to set all of the relevant
844 * group descriptor data etc. *before* we enable the group. 844 * group descriptor data etc. *before* we enable the group.
845 * 845 *
846 * The key field here is sbi->s_groups_count: as long as 846 * The key field here is sbi->s_groups_count: as long as
847 * that retains its old value, nobody is going to access the new 847 * that retains its old value, nobody is going to access the new
848 * group. 848 * group.
849 * 849 *
850 * So first we update all the descriptor metadata for the new 850 * So first we update all the descriptor metadata for the new
851 * group; then we update the total disk blocks count; then we 851 * group; then we update the total disk blocks count; then we
852 * update the groups count to enable the group; then finally we 852 * update the groups count to enable the group; then finally we
853 * update the free space counts so that the system can start 853 * update the free space counts so that the system can start
854 * using the new disk blocks. 854 * using the new disk blocks.
855 */ 855 */
856 856
857 /* Update group descriptor block for new group */ 857 /* Update group descriptor block for new group */
858 gdp = (struct ext4_group_desc *)((char *)primary->b_data + 858 gdp = (struct ext4_group_desc *)((char *)primary->b_data +
@@ -946,7 +946,8 @@ exit_put:
946 return err; 946 return err;
947} /* ext4_group_add */ 947} /* ext4_group_add */
948 948
949/* Extend the filesystem to the new number of blocks specified. This entry 949/*
950 * Extend the filesystem to the new number of blocks specified. This entry
950 * point is only used to extend the current filesystem to the end of the last 951 * point is only used to extend the current filesystem to the end of the last
951 * existing group. It can be accessed via ioctl, or by "remount,resize=<size>" 952 * existing group. It can be accessed via ioctl, or by "remount,resize=<size>"
952 * for emergencies (because it has no dependencies on reserved blocks). 953 * for emergencies (because it has no dependencies on reserved blocks).
@@ -1024,7 +1025,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
1024 o_blocks_count + add, add); 1025 o_blocks_count + add, add);
1025 1026
1026 /* See if the device is actually as big as what was requested */ 1027 /* See if the device is actually as big as what was requested */
1027 bh = sb_bread(sb, o_blocks_count + add -1); 1028 bh = sb_bread(sb, o_blocks_count + add - 1);
1028 if (!bh) { 1029 if (!bh) {
1029 ext4_warning(sb, __func__, 1030 ext4_warning(sb, __func__,
1030 "can't read last block, resize aborted"); 1031 "can't read last block, resize aborted");
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e34fc2d6dbf5..09e3c56782a7 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -49,20 +49,19 @@ static int ext4_load_journal(struct super_block *, struct ext4_super_block *,
49 unsigned long journal_devnum); 49 unsigned long journal_devnum);
50static int ext4_create_journal(struct super_block *, struct ext4_super_block *, 50static int ext4_create_journal(struct super_block *, struct ext4_super_block *,
51 unsigned int); 51 unsigned int);
52static void ext4_commit_super (struct super_block * sb, 52static void ext4_commit_super(struct super_block *sb,
53 struct ext4_super_block * es, 53 struct ext4_super_block *es, int sync);
54 int sync); 54static void ext4_mark_recovery_complete(struct super_block *sb,
55static void ext4_mark_recovery_complete(struct super_block * sb, 55 struct ext4_super_block *es);
56 struct ext4_super_block * es); 56static void ext4_clear_journal_err(struct super_block *sb,
57static void ext4_clear_journal_err(struct super_block * sb, 57 struct ext4_super_block *es);
58 struct ext4_super_block * es);
59static int ext4_sync_fs(struct super_block *sb, int wait); 58static int ext4_sync_fs(struct super_block *sb, int wait);
60static const char *ext4_decode_error(struct super_block * sb, int errno, 59static const char *ext4_decode_error(struct super_block *sb, int errno,
61 char nbuf[16]); 60 char nbuf[16]);
62static int ext4_remount (struct super_block * sb, int * flags, char * data); 61static int ext4_remount(struct super_block *sb, int *flags, char *data);
63static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf); 62static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf);
64static void ext4_unlockfs(struct super_block *sb); 63static void ext4_unlockfs(struct super_block *sb);
65static void ext4_write_super (struct super_block * sb); 64static void ext4_write_super(struct super_block *sb);
66static void ext4_write_super_lockfs(struct super_block *sb); 65static void ext4_write_super_lockfs(struct super_block *sb);
67 66
68 67
@@ -211,15 +210,15 @@ static void ext4_handle_error(struct super_block *sb)
211 if (sb->s_flags & MS_RDONLY) 210 if (sb->s_flags & MS_RDONLY)
212 return; 211 return;
213 212
214 if (!test_opt (sb, ERRORS_CONT)) { 213 if (!test_opt(sb, ERRORS_CONT)) {
215 journal_t *journal = EXT4_SB(sb)->s_journal; 214 journal_t *journal = EXT4_SB(sb)->s_journal;
216 215
217 EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT; 216 EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT;
218 if (journal) 217 if (journal)
219 jbd2_journal_abort(journal, -EIO); 218 jbd2_journal_abort(journal, -EIO);
220 } 219 }
221 if (test_opt (sb, ERRORS_RO)) { 220 if (test_opt(sb, ERRORS_RO)) {
222 printk (KERN_CRIT "Remounting filesystem read-only\n"); 221 printk(KERN_CRIT "Remounting filesystem read-only\n");
223 sb->s_flags |= MS_RDONLY; 222 sb->s_flags |= MS_RDONLY;
224 } 223 }
225 ext4_commit_super(sb, es, 1); 224 ext4_commit_super(sb, es, 1);
@@ -228,13 +227,13 @@ static void ext4_handle_error(struct super_block *sb)
228 sb->s_id); 227 sb->s_id);
229} 228}
230 229
231void ext4_error (struct super_block * sb, const char * function, 230void ext4_error(struct super_block *sb, const char *function,
232 const char * fmt, ...) 231 const char *fmt, ...)
233{ 232{
234 va_list args; 233 va_list args;
235 234
236 va_start(args, fmt); 235 va_start(args, fmt);
237 printk(KERN_CRIT "EXT4-fs error (device %s): %s: ",sb->s_id, function); 236 printk(KERN_CRIT "EXT4-fs error (device %s): %s: ", sb->s_id, function);
238 vprintk(fmt, args); 237 vprintk(fmt, args);
239 printk("\n"); 238 printk("\n");
240 va_end(args); 239 va_end(args);
@@ -242,7 +241,7 @@ void ext4_error (struct super_block * sb, const char * function,
242 ext4_handle_error(sb); 241 ext4_handle_error(sb);
243} 242}
244 243
245static const char *ext4_decode_error(struct super_block * sb, int errno, 244static const char *ext4_decode_error(struct super_block *sb, int errno,
246 char nbuf[16]) 245 char nbuf[16])
247{ 246{
248 char *errstr = NULL; 247 char *errstr = NULL;
@@ -278,8 +277,7 @@ static const char *ext4_decode_error(struct super_block * sb, int errno,
278/* __ext4_std_error decodes expected errors from journaling functions 277/* __ext4_std_error decodes expected errors from journaling functions
279 * automatically and invokes the appropriate error response. */ 278 * automatically and invokes the appropriate error response. */
280 279
281void __ext4_std_error (struct super_block * sb, const char * function, 280void __ext4_std_error(struct super_block *sb, const char *function, int errno)
282 int errno)
283{ 281{
284 char nbuf[16]; 282 char nbuf[16];
285 const char *errstr; 283 const char *errstr;
@@ -292,8 +290,8 @@ void __ext4_std_error (struct super_block * sb, const char * function,
292 return; 290 return;
293 291
294 errstr = ext4_decode_error(sb, errno, nbuf); 292 errstr = ext4_decode_error(sb, errno, nbuf);
295 printk (KERN_CRIT "EXT4-fs error (device %s) in %s: %s\n", 293 printk(KERN_CRIT "EXT4-fs error (device %s) in %s: %s\n",
296 sb->s_id, function, errstr); 294 sb->s_id, function, errstr);
297 295
298 ext4_handle_error(sb); 296 ext4_handle_error(sb);
299} 297}
@@ -308,15 +306,15 @@ void __ext4_std_error (struct super_block * sb, const char * function,
308 * case we take the easy way out and panic immediately. 306 * case we take the easy way out and panic immediately.
309 */ 307 */
310 308
311void ext4_abort (struct super_block * sb, const char * function, 309void ext4_abort(struct super_block *sb, const char *function,
312 const char * fmt, ...) 310 const char *fmt, ...)
313{ 311{
314 va_list args; 312 va_list args;
315 313
316 printk (KERN_CRIT "ext4_abort called.\n"); 314 printk(KERN_CRIT "ext4_abort called.\n");
317 315
318 va_start(args, fmt); 316 va_start(args, fmt);
319 printk(KERN_CRIT "EXT4-fs error (device %s): %s: ",sb->s_id, function); 317 printk(KERN_CRIT "EXT4-fs error (device %s): %s: ", sb->s_id, function);
320 vprintk(fmt, args); 318 vprintk(fmt, args);
321 printk("\n"); 319 printk("\n");
322 va_end(args); 320 va_end(args);
@@ -334,8 +332,8 @@ void ext4_abort (struct super_block * sb, const char * function,
334 jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO); 332 jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
335} 333}
336 334
337void ext4_warning (struct super_block * sb, const char * function, 335void ext4_warning(struct super_block *sb, const char *function,
338 const char * fmt, ...) 336 const char *fmt, ...)
339{ 337{
340 va_list args; 338 va_list args;
341 339
@@ -496,7 +494,7 @@ static void dump_orphan_list(struct super_block *sb, struct ext4_sb_info *sbi)
496 } 494 }
497} 495}
498 496
499static void ext4_put_super (struct super_block * sb) 497static void ext4_put_super(struct super_block *sb)
500{ 498{
501 struct ext4_sb_info *sbi = EXT4_SB(sb); 499 struct ext4_sb_info *sbi = EXT4_SB(sb);
502 struct ext4_super_block *es = sbi->s_es; 500 struct ext4_super_block *es = sbi->s_es;
@@ -647,7 +645,8 @@ static void ext4_clear_inode(struct inode *inode)
647 &EXT4_I(inode)->jinode); 645 &EXT4_I(inode)->jinode);
648} 646}
649 647
650static inline void ext4_show_quota_options(struct seq_file *seq, struct super_block *sb) 648static inline void ext4_show_quota_options(struct seq_file *seq,
649 struct super_block *sb)
651{ 650{
652#if defined(CONFIG_QUOTA) 651#if defined(CONFIG_QUOTA)
653 struct ext4_sb_info *sbi = EXT4_SB(sb); 652 struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -822,8 +821,8 @@ static struct dentry *ext4_fh_to_parent(struct super_block *sb, struct fid *fid,
822} 821}
823 822
824#ifdef CONFIG_QUOTA 823#ifdef CONFIG_QUOTA
825#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group") 824#define QTYPE2NAME(t) ((t) == USRQUOTA?"user":"group")
826#define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA)) 825#define QTYPE2MOPT(on, t) ((t) == USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
827 826
828static int ext4_dquot_initialize(struct inode *inode, int type); 827static int ext4_dquot_initialize(struct inode *inode, int type);
829static int ext4_dquot_drop(struct inode *inode); 828static int ext4_dquot_drop(struct inode *inode);
@@ -991,12 +990,12 @@ static ext4_fsblk_t get_sb_block(void **data)
991 return sb_block; 990 return sb_block;
992} 991}
993 992
994static int parse_options (char *options, struct super_block *sb, 993static int parse_options(char *options, struct super_block *sb,
995 unsigned int *inum, unsigned long *journal_devnum, 994 unsigned int *inum, unsigned long *journal_devnum,
996 ext4_fsblk_t *n_blocks_count, int is_remount) 995 ext4_fsblk_t *n_blocks_count, int is_remount)
997{ 996{
998 struct ext4_sb_info *sbi = EXT4_SB(sb); 997 struct ext4_sb_info *sbi = EXT4_SB(sb);
999 char * p; 998 char *p;
1000 substring_t args[MAX_OPT_ARGS]; 999 substring_t args[MAX_OPT_ARGS];
1001 int data_opt = 0; 1000 int data_opt = 0;
1002 int option; 1001 int option;
@@ -1009,7 +1008,7 @@ static int parse_options (char *options, struct super_block *sb,
1009 if (!options) 1008 if (!options)
1010 return 1; 1009 return 1;
1011 1010
1012 while ((p = strsep (&options, ",")) != NULL) { 1011 while ((p = strsep(&options, ",")) != NULL) {
1013 int token; 1012 int token;
1014 if (!*p) 1013 if (!*p)
1015 continue; 1014 continue;
@@ -1017,16 +1016,16 @@ static int parse_options (char *options, struct super_block *sb,
1017 token = match_token(p, tokens, args); 1016 token = match_token(p, tokens, args);
1018 switch (token) { 1017 switch (token) {
1019 case Opt_bsd_df: 1018 case Opt_bsd_df:
1020 clear_opt (sbi->s_mount_opt, MINIX_DF); 1019 clear_opt(sbi->s_mount_opt, MINIX_DF);
1021 break; 1020 break;
1022 case Opt_minix_df: 1021 case Opt_minix_df:
1023 set_opt (sbi->s_mount_opt, MINIX_DF); 1022 set_opt(sbi->s_mount_opt, MINIX_DF);
1024 break; 1023 break;
1025 case Opt_grpid: 1024 case Opt_grpid:
1026 set_opt (sbi->s_mount_opt, GRPID); 1025 set_opt(sbi->s_mount_opt, GRPID);
1027 break; 1026 break;
1028 case Opt_nogrpid: 1027 case Opt_nogrpid:
1029 clear_opt (sbi->s_mount_opt, GRPID); 1028 clear_opt(sbi->s_mount_opt, GRPID);
1030 break; 1029 break;
1031 case Opt_resuid: 1030 case Opt_resuid:
1032 if (match_int(&args[0], &option)) 1031 if (match_int(&args[0], &option))
@@ -1043,41 +1042,41 @@ static int parse_options (char *options, struct super_block *sb,
1043 /* *sb_block = match_int(&args[0]); */ 1042 /* *sb_block = match_int(&args[0]); */
1044 break; 1043 break;
1045 case Opt_err_panic: 1044 case Opt_err_panic:
1046 clear_opt (sbi->s_mount_opt, ERRORS_CONT); 1045 clear_opt(sbi->s_mount_opt, ERRORS_CONT);
1047 clear_opt (sbi->s_mount_opt, ERRORS_RO); 1046 clear_opt(sbi->s_mount_opt, ERRORS_RO);
1048 set_opt (sbi->s_mount_opt, ERRORS_PANIC); 1047 set_opt(sbi->s_mount_opt, ERRORS_PANIC);
1049 break; 1048 break;
1050 case Opt_err_ro: 1049 case Opt_err_ro:
1051 clear_opt (sbi->s_mount_opt, ERRORS_CONT); 1050 clear_opt(sbi->s_mount_opt, ERRORS_CONT);
1052 clear_opt (sbi->s_mount_opt, ERRORS_PANIC); 1051 clear_opt(sbi->s_mount_opt, ERRORS_PANIC);
1053 set_opt (sbi->s_mount_opt, ERRORS_RO); 1052 set_opt(sbi->s_mount_opt, ERRORS_RO);
1054 break; 1053 break;
1055 case Opt_err_cont: 1054 case Opt_err_cont:
1056 clear_opt (sbi->s_mount_opt, ERRORS_RO); 1055 clear_opt(sbi->s_mount_opt, ERRORS_RO);
1057 clear_opt (sbi->s_mount_opt, ERRORS_PANIC); 1056 clear_opt(sbi->s_mount_opt, ERRORS_PANIC);
1058 set_opt (sbi->s_mount_opt, ERRORS_CONT); 1057 set_opt(sbi->s_mount_opt, ERRORS_CONT);
1059 break; 1058 break;
1060 case Opt_nouid32: 1059 case Opt_nouid32:
1061 set_opt (sbi->s_mount_opt, NO_UID32); 1060 set_opt(sbi->s_mount_opt, NO_UID32);
1062 break; 1061 break;
1063 case Opt_nocheck: 1062 case Opt_nocheck:
1064 clear_opt (sbi->s_mount_opt, CHECK); 1063 clear_opt(sbi->s_mount_opt, CHECK);
1065 break; 1064 break;
1066 case Opt_debug: 1065 case Opt_debug:
1067 set_opt (sbi->s_mount_opt, DEBUG); 1066 set_opt(sbi->s_mount_opt, DEBUG);
1068 break; 1067 break;
1069 case Opt_oldalloc: 1068 case Opt_oldalloc:
1070 set_opt (sbi->s_mount_opt, OLDALLOC); 1069 set_opt(sbi->s_mount_opt, OLDALLOC);
1071 break; 1070 break;
1072 case Opt_orlov: 1071 case Opt_orlov:
1073 clear_opt (sbi->s_mount_opt, OLDALLOC); 1072 clear_opt(sbi->s_mount_opt, OLDALLOC);
1074 break; 1073 break;
1075#ifdef CONFIG_EXT4DEV_FS_XATTR 1074#ifdef CONFIG_EXT4DEV_FS_XATTR
1076 case Opt_user_xattr: 1075 case Opt_user_xattr:
1077 set_opt (sbi->s_mount_opt, XATTR_USER); 1076 set_opt(sbi->s_mount_opt, XATTR_USER);
1078 break; 1077 break;
1079 case Opt_nouser_xattr: 1078 case Opt_nouser_xattr:
1080 clear_opt (sbi->s_mount_opt, XATTR_USER); 1079 clear_opt(sbi->s_mount_opt, XATTR_USER);
1081 break; 1080 break;
1082#else 1081#else
1083 case Opt_user_xattr: 1082 case Opt_user_xattr:
@@ -1115,7 +1114,7 @@ static int parse_options (char *options, struct super_block *sb,
1115 "journal on remount\n"); 1114 "journal on remount\n");
1116 return 0; 1115 return 0;
1117 } 1116 }
1118 set_opt (sbi->s_mount_opt, UPDATE_JOURNAL); 1117 set_opt(sbi->s_mount_opt, UPDATE_JOURNAL);
1119 break; 1118 break;
1120 case Opt_journal_inum: 1119 case Opt_journal_inum:
1121 if (is_remount) { 1120 if (is_remount) {
@@ -1145,7 +1144,7 @@ static int parse_options (char *options, struct super_block *sb,
1145 set_opt(sbi->s_mount_opt, JOURNAL_CHECKSUM); 1144 set_opt(sbi->s_mount_opt, JOURNAL_CHECKSUM);
1146 break; 1145 break;
1147 case Opt_noload: 1146 case Opt_noload:
1148 set_opt (sbi->s_mount_opt, NOLOAD); 1147 set_opt(sbi->s_mount_opt, NOLOAD);
1149 break; 1148 break;
1150 case Opt_commit: 1149 case Opt_commit:
1151 if (match_int(&args[0], &option)) 1150 if (match_int(&args[0], &option))
@@ -1331,7 +1330,7 @@ set_qf_format:
1331 "on this filesystem, use tune2fs\n"); 1330 "on this filesystem, use tune2fs\n");
1332 return 0; 1331 return 0;
1333 } 1332 }
1334 set_opt (sbi->s_mount_opt, EXTENTS); 1333 set_opt(sbi->s_mount_opt, EXTENTS);
1335 break; 1334 break;
1336 case Opt_noextents: 1335 case Opt_noextents:
1337 /* 1336 /*
@@ -1348,7 +1347,7 @@ set_qf_format:
1348 "-o noextents options\n"); 1347 "-o noextents options\n");
1349 return 0; 1348 return 0;
1350 } 1349 }
1351 clear_opt (sbi->s_mount_opt, EXTENTS); 1350 clear_opt(sbi->s_mount_opt, EXTENTS);
1352 break; 1351 break;
1353 case Opt_i_version: 1352 case Opt_i_version:
1354 set_opt(sbi->s_mount_opt, I_VERSION); 1353 set_opt(sbi->s_mount_opt, I_VERSION);
@@ -1374,9 +1373,9 @@ set_qf_format:
1374 set_opt(sbi->s_mount_opt, DELALLOC); 1373 set_opt(sbi->s_mount_opt, DELALLOC);
1375 break; 1374 break;
1376 default: 1375 default:
1377 printk (KERN_ERR 1376 printk(KERN_ERR
1378 "EXT4-fs: Unrecognized mount option \"%s\" " 1377 "EXT4-fs: Unrecognized mount option \"%s\" "
1379 "or missing value\n", p); 1378 "or missing value\n", p);
1380 return 0; 1379 return 0;
1381 } 1380 }
1382 } 1381 }
@@ -1423,31 +1422,31 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
1423 int res = 0; 1422 int res = 0;
1424 1423
1425 if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) { 1424 if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) {
1426 printk (KERN_ERR "EXT4-fs warning: revision level too high, " 1425 printk(KERN_ERR "EXT4-fs warning: revision level too high, "
1427 "forcing read-only mode\n"); 1426 "forcing read-only mode\n");
1428 res = MS_RDONLY; 1427 res = MS_RDONLY;
1429 } 1428 }
1430 if (read_only) 1429 if (read_only)
1431 return res; 1430 return res;
1432 if (!(sbi->s_mount_state & EXT4_VALID_FS)) 1431 if (!(sbi->s_mount_state & EXT4_VALID_FS))
1433 printk (KERN_WARNING "EXT4-fs warning: mounting unchecked fs, " 1432 printk(KERN_WARNING "EXT4-fs warning: mounting unchecked fs, "
1434 "running e2fsck is recommended\n"); 1433 "running e2fsck is recommended\n");
1435 else if ((sbi->s_mount_state & EXT4_ERROR_FS)) 1434 else if ((sbi->s_mount_state & EXT4_ERROR_FS))
1436 printk (KERN_WARNING 1435 printk(KERN_WARNING
1437 "EXT4-fs warning: mounting fs with errors, " 1436 "EXT4-fs warning: mounting fs with errors, "
1438 "running e2fsck is recommended\n"); 1437 "running e2fsck is recommended\n");
1439 else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 && 1438 else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
1440 le16_to_cpu(es->s_mnt_count) >= 1439 le16_to_cpu(es->s_mnt_count) >=
1441 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count)) 1440 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
1442 printk (KERN_WARNING 1441 printk(KERN_WARNING
1443 "EXT4-fs warning: maximal mount count reached, " 1442 "EXT4-fs warning: maximal mount count reached, "
1444 "running e2fsck is recommended\n"); 1443 "running e2fsck is recommended\n");
1445 else if (le32_to_cpu(es->s_checkinterval) && 1444 else if (le32_to_cpu(es->s_checkinterval) &&
1446 (le32_to_cpu(es->s_lastcheck) + 1445 (le32_to_cpu(es->s_lastcheck) +
1447 le32_to_cpu(es->s_checkinterval) <= get_seconds())) 1446 le32_to_cpu(es->s_checkinterval) <= get_seconds()))
1448 printk (KERN_WARNING 1447 printk(KERN_WARNING
1449 "EXT4-fs warning: checktime reached, " 1448 "EXT4-fs warning: checktime reached, "
1450 "running e2fsck is recommended\n"); 1449 "running e2fsck is recommended\n");
1451#if 0 1450#if 0
1452 /* @@@ We _will_ want to clear the valid bit if we find 1451 /* @@@ We _will_ want to clear the valid bit if we find
1453 * inconsistencies, to force a fsck at reboot. But for 1452 * inconsistencies, to force a fsck at reboot. But for
@@ -1596,16 +1595,14 @@ static int ext4_check_descriptors(struct super_block *sb)
1596 (EXT4_BLOCKS_PER_GROUP(sb) - 1); 1595 (EXT4_BLOCKS_PER_GROUP(sb) - 1);
1597 1596
1598 block_bitmap = ext4_block_bitmap(sb, gdp); 1597 block_bitmap = ext4_block_bitmap(sb, gdp);
1599 if (block_bitmap < first_block || block_bitmap > last_block) 1598 if (block_bitmap < first_block || block_bitmap > last_block) {
1600 {
1601 printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: " 1599 printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
1602 "Block bitmap for group %lu not in group " 1600 "Block bitmap for group %lu not in group "
1603 "(block %llu)!", i, block_bitmap); 1601 "(block %llu)!", i, block_bitmap);
1604 return 0; 1602 return 0;
1605 } 1603 }
1606 inode_bitmap = ext4_inode_bitmap(sb, gdp); 1604 inode_bitmap = ext4_inode_bitmap(sb, gdp);
1607 if (inode_bitmap < first_block || inode_bitmap > last_block) 1605 if (inode_bitmap < first_block || inode_bitmap > last_block) {
1608 {
1609 printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: " 1606 printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
1610 "Inode bitmap for group %lu not in group " 1607 "Inode bitmap for group %lu not in group "
1611 "(block %llu)!", i, inode_bitmap); 1608 "(block %llu)!", i, inode_bitmap);
@@ -1613,8 +1610,7 @@ static int ext4_check_descriptors(struct super_block *sb)
1613 } 1610 }
1614 inode_table = ext4_inode_table(sb, gdp); 1611 inode_table = ext4_inode_table(sb, gdp);
1615 if (inode_table < first_block || 1612 if (inode_table < first_block ||
1616 inode_table + sbi->s_itb_per_group - 1 > last_block) 1613 inode_table + sbi->s_itb_per_group - 1 > last_block) {
1617 {
1618 printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: " 1614 printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
1619 "Inode table for group %lu not in group " 1615 "Inode table for group %lu not in group "
1620 "(block %llu)!", i, inode_table); 1616 "(block %llu)!", i, inode_table);
@@ -1635,7 +1631,7 @@ static int ext4_check_descriptors(struct super_block *sb)
1635 } 1631 }
1636 1632
1637 ext4_free_blocks_count_set(sbi->s_es, ext4_count_free_blocks(sb)); 1633 ext4_free_blocks_count_set(sbi->s_es, ext4_count_free_blocks(sb));
1638 sbi->s_es->s_free_inodes_count=cpu_to_le32(ext4_count_free_inodes(sb)); 1634 sbi->s_es->s_free_inodes_count = cpu_to_le32(ext4_count_free_inodes(sb));
1639 return 1; 1635 return 1;
1640} 1636}
1641 1637
@@ -1656,8 +1652,8 @@ static int ext4_check_descriptors(struct super_block *sb)
1656 * e2fsck was run on this filesystem, and it must have already done the orphan 1652 * e2fsck was run on this filesystem, and it must have already done the orphan
1657 * inode cleanup for us, so we can safely abort without any further action. 1653 * inode cleanup for us, so we can safely abort without any further action.
1658 */ 1654 */
1659static void ext4_orphan_cleanup (struct super_block * sb, 1655static void ext4_orphan_cleanup(struct super_block *sb,
1660 struct ext4_super_block * es) 1656 struct ext4_super_block *es)
1661{ 1657{
1662 unsigned int s_flags = sb->s_flags; 1658 unsigned int s_flags = sb->s_flags;
1663 int nr_orphans = 0, nr_truncates = 0; 1659 int nr_orphans = 0, nr_truncates = 0;
@@ -1734,7 +1730,7 @@ static void ext4_orphan_cleanup (struct super_block * sb,
1734 iput(inode); /* The delete magic happens here! */ 1730 iput(inode); /* The delete magic happens here! */
1735 } 1731 }
1736 1732
1737#define PLURAL(x) (x), ((x)==1) ? "" : "s" 1733#define PLURAL(x) (x), ((x) == 1) ? "" : "s"
1738 1734
1739 if (nr_orphans) 1735 if (nr_orphans)
1740 printk(KERN_INFO "EXT4-fs: %s: %d orphan inode%s deleted\n", 1736 printk(KERN_INFO "EXT4-fs: %s: %d orphan inode%s deleted\n",
@@ -1901,12 +1897,12 @@ static unsigned long ext4_get_stripe_size(struct ext4_sb_info *sbi)
1901 return 0; 1897 return 0;
1902} 1898}
1903 1899
1904static int ext4_fill_super (struct super_block *sb, void *data, int silent) 1900static int ext4_fill_super(struct super_block *sb, void *data, int silent)
1905 __releases(kernel_lock) 1901 __releases(kernel_lock)
1906 __acquires(kernel_lock) 1902 __acquires(kernel_lock)
1907 1903
1908{ 1904{
1909 struct buffer_head * bh; 1905 struct buffer_head *bh;
1910 struct ext4_super_block *es = NULL; 1906 struct ext4_super_block *es = NULL;
1911 struct ext4_sb_info *sbi; 1907 struct ext4_sb_info *sbi;
1912 ext4_fsblk_t block; 1908 ext4_fsblk_t block;
@@ -1955,7 +1951,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
1955 } 1951 }
1956 1952
1957 if (!(bh = sb_bread(sb, logical_sb_block))) { 1953 if (!(bh = sb_bread(sb, logical_sb_block))) {
1958 printk (KERN_ERR "EXT4-fs: unable to read superblock\n"); 1954 printk(KERN_ERR "EXT4-fs: unable to read superblock\n");
1959 goto out_fail; 1955 goto out_fail;
1960 } 1956 }
1961 /* 1957 /*
@@ -2028,8 +2024,8 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2028 set_opt(sbi->s_mount_opt, DELALLOC); 2024 set_opt(sbi->s_mount_opt, DELALLOC);
2029 2025
2030 2026
2031 if (!parse_options ((char *) data, sb, &journal_inum, &journal_devnum, 2027 if (!parse_options((char *) data, sb, &journal_inum, &journal_devnum,
2032 NULL, 0)) 2028 NULL, 0))
2033 goto failed_mount; 2029 goto failed_mount;
2034 2030
2035 sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 2031 sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
@@ -2104,7 +2100,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2104 goto failed_mount; 2100 goto failed_mount;
2105 } 2101 }
2106 2102
2107 brelse (bh); 2103 brelse(bh);
2108 logical_sb_block = sb_block * EXT4_MIN_BLOCK_SIZE; 2104 logical_sb_block = sb_block * EXT4_MIN_BLOCK_SIZE;
2109 offset = do_div(logical_sb_block, blocksize); 2105 offset = do_div(logical_sb_block, blocksize);
2110 bh = sb_bread(sb, logical_sb_block); 2106 bh = sb_bread(sb, logical_sb_block);
@@ -2116,8 +2112,8 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2116 es = (struct ext4_super_block *)(((char *)bh->b_data) + offset); 2112 es = (struct ext4_super_block *)(((char *)bh->b_data) + offset);
2117 sbi->s_es = es; 2113 sbi->s_es = es;
2118 if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) { 2114 if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) {
2119 printk (KERN_ERR 2115 printk(KERN_ERR
2120 "EXT4-fs: Magic mismatch, very weird !\n"); 2116 "EXT4-fs: Magic mismatch, very weird !\n");
2121 goto failed_mount; 2117 goto failed_mount;
2122 } 2118 }
2123 } 2119 }
@@ -2134,9 +2130,9 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2134 if ((sbi->s_inode_size < EXT4_GOOD_OLD_INODE_SIZE) || 2130 if ((sbi->s_inode_size < EXT4_GOOD_OLD_INODE_SIZE) ||
2135 (!is_power_of_2(sbi->s_inode_size)) || 2131 (!is_power_of_2(sbi->s_inode_size)) ||
2136 (sbi->s_inode_size > blocksize)) { 2132 (sbi->s_inode_size > blocksize)) {
2137 printk (KERN_ERR 2133 printk(KERN_ERR
2138 "EXT4-fs: unsupported inode size: %d\n", 2134 "EXT4-fs: unsupported inode size: %d\n",
2139 sbi->s_inode_size); 2135 sbi->s_inode_size);
2140 goto failed_mount; 2136 goto failed_mount;
2141 } 2137 }
2142 if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE) 2138 if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE)
@@ -2168,20 +2164,20 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2168 sbi->s_mount_state = le16_to_cpu(es->s_state); 2164 sbi->s_mount_state = le16_to_cpu(es->s_state);
2169 sbi->s_addr_per_block_bits = ilog2(EXT4_ADDR_PER_BLOCK(sb)); 2165 sbi->s_addr_per_block_bits = ilog2(EXT4_ADDR_PER_BLOCK(sb));
2170 sbi->s_desc_per_block_bits = ilog2(EXT4_DESC_PER_BLOCK(sb)); 2166 sbi->s_desc_per_block_bits = ilog2(EXT4_DESC_PER_BLOCK(sb));
2171 for (i=0; i < 4; i++) 2167 for (i = 0; i < 4; i++)
2172 sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]); 2168 sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);
2173 sbi->s_def_hash_version = es->s_def_hash_version; 2169 sbi->s_def_hash_version = es->s_def_hash_version;
2174 2170
2175 if (sbi->s_blocks_per_group > blocksize * 8) { 2171 if (sbi->s_blocks_per_group > blocksize * 8) {
2176 printk (KERN_ERR 2172 printk(KERN_ERR
2177 "EXT4-fs: #blocks per group too big: %lu\n", 2173 "EXT4-fs: #blocks per group too big: %lu\n",
2178 sbi->s_blocks_per_group); 2174 sbi->s_blocks_per_group);
2179 goto failed_mount; 2175 goto failed_mount;
2180 } 2176 }
2181 if (sbi->s_inodes_per_group > blocksize * 8) { 2177 if (sbi->s_inodes_per_group > blocksize * 8) {
2182 printk (KERN_ERR 2178 printk(KERN_ERR
2183 "EXT4-fs: #inodes per group too big: %lu\n", 2179 "EXT4-fs: #inodes per group too big: %lu\n",
2184 sbi->s_inodes_per_group); 2180 sbi->s_inodes_per_group);
2185 goto failed_mount; 2181 goto failed_mount;
2186 } 2182 }
2187 2183
@@ -2215,10 +2211,10 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2215 sbi->s_groups_count = blocks_count; 2211 sbi->s_groups_count = blocks_count;
2216 db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) / 2212 db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
2217 EXT4_DESC_PER_BLOCK(sb); 2213 EXT4_DESC_PER_BLOCK(sb);
2218 sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *), 2214 sbi->s_group_desc = kmalloc(db_count * sizeof(struct buffer_head *),
2219 GFP_KERNEL); 2215 GFP_KERNEL);
2220 if (sbi->s_group_desc == NULL) { 2216 if (sbi->s_group_desc == NULL) {
2221 printk (KERN_ERR "EXT4-fs: not enough memory\n"); 2217 printk(KERN_ERR "EXT4-fs: not enough memory\n");
2222 goto failed_mount; 2218 goto failed_mount;
2223 } 2219 }
2224 2220
@@ -2228,13 +2224,13 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2228 block = descriptor_loc(sb, logical_sb_block, i); 2224 block = descriptor_loc(sb, logical_sb_block, i);
2229 sbi->s_group_desc[i] = sb_bread(sb, block); 2225 sbi->s_group_desc[i] = sb_bread(sb, block);
2230 if (!sbi->s_group_desc[i]) { 2226 if (!sbi->s_group_desc[i]) {
2231 printk (KERN_ERR "EXT4-fs: " 2227 printk(KERN_ERR "EXT4-fs: "
2232 "can't read group descriptor %d\n", i); 2228 "can't read group descriptor %d\n", i);
2233 db_count = i; 2229 db_count = i;
2234 goto failed_mount2; 2230 goto failed_mount2;
2235 } 2231 }
2236 } 2232 }
2237 if (!ext4_check_descriptors (sb)) { 2233 if (!ext4_check_descriptors(sb)) {
2238 printk(KERN_ERR "EXT4-fs: group descriptors corrupted!\n"); 2234 printk(KERN_ERR "EXT4-fs: group descriptors corrupted!\n");
2239 goto failed_mount2; 2235 goto failed_mount2;
2240 } 2236 }
@@ -2310,11 +2306,11 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2310 EXT4_SB(sb)->s_journal->j_failed_commit) { 2306 EXT4_SB(sb)->s_journal->j_failed_commit) {
2311 printk(KERN_CRIT "EXT4-fs error (device %s): " 2307 printk(KERN_CRIT "EXT4-fs error (device %s): "
2312 "ext4_fill_super: Journal transaction " 2308 "ext4_fill_super: Journal transaction "
2313 "%u is corrupt\n", sb->s_id, 2309 "%u is corrupt\n", sb->s_id,
2314 EXT4_SB(sb)->s_journal->j_failed_commit); 2310 EXT4_SB(sb)->s_journal->j_failed_commit);
2315 if (test_opt (sb, ERRORS_RO)) { 2311 if (test_opt(sb, ERRORS_RO)) {
2316 printk (KERN_CRIT 2312 printk(KERN_CRIT
2317 "Mounting filesystem read-only\n"); 2313 "Mounting filesystem read-only\n");
2318 sb->s_flags |= MS_RDONLY; 2314 sb->s_flags |= MS_RDONLY;
2319 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; 2315 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
2320 es->s_state |= cpu_to_le16(EXT4_ERROR_FS); 2316 es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
@@ -2334,9 +2330,9 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2334 goto failed_mount3; 2330 goto failed_mount3;
2335 } else { 2331 } else {
2336 if (!silent) 2332 if (!silent)
2337 printk (KERN_ERR 2333 printk(KERN_ERR
2338 "ext4: No journal on filesystem on %s\n", 2334 "ext4: No journal on filesystem on %s\n",
2339 sb->s_id); 2335 sb->s_id);
2340 goto failed_mount3; 2336 goto failed_mount3;
2341 } 2337 }
2342 2338
@@ -2420,7 +2416,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2420 goto failed_mount4; 2416 goto failed_mount4;
2421 } 2417 }
2422 2418
2423 ext4_setup_super (sb, es, sb->s_flags & MS_RDONLY); 2419 ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY);
2424 2420
2425 /* determine the minimum size of new large inodes, if present */ 2421 /* determine the minimum size of new large inodes, if present */
2426 if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE) { 2422 if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE) {
@@ -2459,12 +2455,12 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
2459 ext4_orphan_cleanup(sb, es); 2455 ext4_orphan_cleanup(sb, es);
2460 EXT4_SB(sb)->s_mount_state &= ~EXT4_ORPHAN_FS; 2456 EXT4_SB(sb)->s_mount_state &= ~EXT4_ORPHAN_FS;
2461 if (needs_recovery) 2457 if (needs_recovery)
2462 printk (KERN_INFO "EXT4-fs: recovery complete.\n"); 2458 printk(KERN_INFO "EXT4-fs: recovery complete.\n");
2463 ext4_mark_recovery_complete(sb, es); 2459 ext4_mark_recovery_complete(sb, es);
2464 printk (KERN_INFO "EXT4-fs: mounted filesystem with %s data mode.\n", 2460 printk(KERN_INFO "EXT4-fs: mounted filesystem with %s data mode.\n",
2465 test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ? "journal": 2461 test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ? "journal":
2466 test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA ? "ordered": 2462 test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA ? "ordered":
2467 "writeback"); 2463 "writeback");
2468 2464
2469 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) { 2465 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
2470 printk(KERN_WARNING "EXT4-fs: Ignoring delalloc option - " 2466 printk(KERN_WARNING "EXT4-fs: Ignoring delalloc option - "
@@ -2577,14 +2573,14 @@ static journal_t *ext4_get_journal(struct super_block *sb,
2577static journal_t *ext4_get_dev_journal(struct super_block *sb, 2573static journal_t *ext4_get_dev_journal(struct super_block *sb,
2578 dev_t j_dev) 2574 dev_t j_dev)
2579{ 2575{
2580 struct buffer_head * bh; 2576 struct buffer_head *bh;
2581 journal_t *journal; 2577 journal_t *journal;
2582 ext4_fsblk_t start; 2578 ext4_fsblk_t start;
2583 ext4_fsblk_t len; 2579 ext4_fsblk_t len;
2584 int hblock, blocksize; 2580 int hblock, blocksize;
2585 ext4_fsblk_t sb_block; 2581 ext4_fsblk_t sb_block;
2586 unsigned long offset; 2582 unsigned long offset;
2587 struct ext4_super_block * es; 2583 struct ext4_super_block *es;
2588 struct block_device *bdev; 2584 struct block_device *bdev;
2589 2585
2590 bdev = ext4_blkdev_get(j_dev); 2586 bdev = ext4_blkdev_get(j_dev);
@@ -2699,8 +2695,8 @@ static int ext4_load_journal(struct super_block *sb,
2699 "unavailable, cannot proceed.\n"); 2695 "unavailable, cannot proceed.\n");
2700 return -EROFS; 2696 return -EROFS;
2701 } 2697 }
2702 printk (KERN_INFO "EXT4-fs: write access will " 2698 printk(KERN_INFO "EXT4-fs: write access will "
2703 "be enabled during recovery.\n"); 2699 "be enabled during recovery.\n");
2704 } 2700 }
2705 } 2701 }
2706 2702
@@ -2753,8 +2749,8 @@ static int ext4_load_journal(struct super_block *sb,
2753 return 0; 2749 return 0;
2754} 2750}
2755 2751
2756static int ext4_create_journal(struct super_block * sb, 2752static int ext4_create_journal(struct super_block *sb,
2757 struct ext4_super_block * es, 2753 struct ext4_super_block *es,
2758 unsigned int journal_inum) 2754 unsigned int journal_inum)
2759{ 2755{
2760 journal_t *journal; 2756 journal_t *journal;
@@ -2795,9 +2791,8 @@ static int ext4_create_journal(struct super_block * sb,
2795 return 0; 2791 return 0;
2796} 2792}
2797 2793
2798static void ext4_commit_super (struct super_block * sb, 2794static void ext4_commit_super(struct super_block *sb,
2799 struct ext4_super_block * es, 2795 struct ext4_super_block *es, int sync)
2800 int sync)
2801{ 2796{
2802 struct buffer_head *sbh = EXT4_SB(sb)->s_sbh; 2797 struct buffer_head *sbh = EXT4_SB(sb)->s_sbh;
2803 2798
@@ -2818,8 +2813,8 @@ static void ext4_commit_super (struct super_block * sb,
2818 * remounting) the filesystem readonly, then we will end up with a 2813 * remounting) the filesystem readonly, then we will end up with a
2819 * consistent fs on disk. Record that fact. 2814 * consistent fs on disk. Record that fact.
2820 */ 2815 */
2821static void ext4_mark_recovery_complete(struct super_block * sb, 2816static void ext4_mark_recovery_complete(struct super_block *sb,
2822 struct ext4_super_block * es) 2817 struct ext4_super_block *es)
2823{ 2818{
2824 journal_t *journal = EXT4_SB(sb)->s_journal; 2819 journal_t *journal = EXT4_SB(sb)->s_journal;
2825 2820
@@ -2841,8 +2836,8 @@ static void ext4_mark_recovery_complete(struct super_block * sb,
2841 * has recorded an error from a previous lifetime, move that error to the 2836 * has recorded an error from a previous lifetime, move that error to the
2842 * main filesystem now. 2837 * main filesystem now.
2843 */ 2838 */
2844static void ext4_clear_journal_err(struct super_block * sb, 2839static void ext4_clear_journal_err(struct super_block *sb,
2845 struct ext4_super_block * es) 2840 struct ext4_super_block *es)
2846{ 2841{
2847 journal_t *journal; 2842 journal_t *journal;
2848 int j_errno; 2843 int j_errno;
@@ -2867,7 +2862,7 @@ static void ext4_clear_journal_err(struct super_block * sb,
2867 2862
2868 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; 2863 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
2869 es->s_state |= cpu_to_le16(EXT4_ERROR_FS); 2864 es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
2870 ext4_commit_super (sb, es, 1); 2865 ext4_commit_super(sb, es, 1);
2871 2866
2872 jbd2_journal_clear_err(journal); 2867 jbd2_journal_clear_err(journal);
2873 } 2868 }
@@ -2900,7 +2895,7 @@ int ext4_force_commit(struct super_block *sb)
2900 * This implicitly triggers the writebehind on sync(). 2895 * This implicitly triggers the writebehind on sync().
2901 */ 2896 */
2902 2897
2903static void ext4_write_super (struct super_block * sb) 2898static void ext4_write_super(struct super_block *sb)
2904{ 2899{
2905 if (mutex_trylock(&sb->s_lock) != 0) 2900 if (mutex_trylock(&sb->s_lock) != 0)
2906 BUG(); 2901 BUG();
@@ -2956,9 +2951,9 @@ static void ext4_unlockfs(struct super_block *sb)
2956 } 2951 }
2957} 2952}
2958 2953
2959static int ext4_remount (struct super_block * sb, int * flags, char * data) 2954static int ext4_remount(struct super_block *sb, int *flags, char *data)
2960{ 2955{
2961 struct ext4_super_block * es; 2956 struct ext4_super_block *es;
2962 struct ext4_sb_info *sbi = EXT4_SB(sb); 2957 struct ext4_sb_info *sbi = EXT4_SB(sb);
2963 ext4_fsblk_t n_blocks_count = 0; 2958 ext4_fsblk_t n_blocks_count = 0;
2964 unsigned long old_sb_flags; 2959 unsigned long old_sb_flags;
@@ -3086,7 +3081,7 @@ static int ext4_remount (struct super_block * sb, int * flags, char * data)
3086 sbi->s_mount_state = le16_to_cpu(es->s_state); 3081 sbi->s_mount_state = le16_to_cpu(es->s_state);
3087 if ((err = ext4_group_extend(sb, es, n_blocks_count))) 3082 if ((err = ext4_group_extend(sb, es, n_blocks_count)))
3088 goto restore_opts; 3083 goto restore_opts;
3089 if (!ext4_setup_super (sb, es, 0)) 3084 if (!ext4_setup_super(sb, es, 0))
3090 sb->s_flags &= ~MS_RDONLY; 3085 sb->s_flags &= ~MS_RDONLY;
3091 } 3086 }
3092 } 3087 }
@@ -3116,7 +3111,7 @@ restore_opts:
3116 return err; 3111 return err;
3117} 3112}
3118 3113
3119static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf) 3114static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf)
3120{ 3115{
3121 struct super_block *sb = dentry->d_sb; 3116 struct super_block *sb = dentry->d_sb;
3122 struct ext4_sb_info *sbi = EXT4_SB(sb); 3117 struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -3354,12 +3349,12 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
3354 } 3349 }
3355 /* Journaling quota? */ 3350 /* Journaling quota? */
3356 if (EXT4_SB(sb)->s_qf_names[type]) { 3351 if (EXT4_SB(sb)->s_qf_names[type]) {
3357 /* Quotafile not of fs root? */ 3352 /* Quotafile not in fs root? */
3358 if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode) 3353 if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
3359 printk(KERN_WARNING 3354 printk(KERN_WARNING
3360 "EXT4-fs: Quota file not on filesystem root. " 3355 "EXT4-fs: Quota file not on filesystem root. "
3361 "Journaled quota will not work.\n"); 3356 "Journaled quota will not work.\n");
3362 } 3357 }
3363 3358
3364 /* 3359 /*
3365 * When we journal data on quota file, we have to flush journal to see 3360 * When we journal data on quota file, we have to flush journal to see
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 93c5fdcdad2e..8954208b4893 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1512,7 +1512,7 @@ static inline void ext4_xattr_hash_entry(struct ext4_xattr_header *header,
1512 char *name = entry->e_name; 1512 char *name = entry->e_name;
1513 int n; 1513 int n;
1514 1514
1515 for (n=0; n < entry->e_name_len; n++) { 1515 for (n = 0; n < entry->e_name_len; n++) {
1516 hash = (hash << NAME_HASH_SHIFT) ^ 1516 hash = (hash << NAME_HASH_SHIFT) ^
1517 (hash >> (8*sizeof(hash) - NAME_HASH_SHIFT)) ^ 1517 (hash >> (8*sizeof(hash) - NAME_HASH_SHIFT)) ^
1518 *name++; 1518 *name++;
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-22 11:34:35 -0500