diff options
Diffstat (limited to 'fs/inode.c')
-rw-r--r-- | fs/inode.c | 77 |
1 files changed, 59 insertions, 18 deletions
diff --git a/fs/inode.c b/fs/inode.c index 826fb0b9d1c3..d06d6d268de9 100644 --- a/fs/inode.c +++ b/fs/inode.c | |||
@@ -17,6 +17,7 @@ | |||
17 | #include <linux/hash.h> | 17 | #include <linux/hash.h> |
18 | #include <linux/swap.h> | 18 | #include <linux/swap.h> |
19 | #include <linux/security.h> | 19 | #include <linux/security.h> |
20 | #include <linux/ima.h> | ||
20 | #include <linux/pagemap.h> | 21 | #include <linux/pagemap.h> |
21 | #include <linux/cdev.h> | 22 | #include <linux/cdev.h> |
22 | #include <linux/bootmem.h> | 23 | #include <linux/bootmem.h> |
@@ -147,13 +148,13 @@ struct inode *inode_init_always(struct super_block *sb, struct inode *inode) | |||
147 | inode->i_cdev = NULL; | 148 | inode->i_cdev = NULL; |
148 | inode->i_rdev = 0; | 149 | inode->i_rdev = 0; |
149 | inode->dirtied_when = 0; | 150 | inode->dirtied_when = 0; |
150 | if (security_inode_alloc(inode)) { | 151 | |
151 | if (inode->i_sb->s_op->destroy_inode) | 152 | if (security_inode_alloc(inode)) |
152 | inode->i_sb->s_op->destroy_inode(inode); | 153 | goto out_free_inode; |
153 | else | 154 | |
154 | kmem_cache_free(inode_cachep, (inode)); | 155 | /* allocate and initialize an i_integrity */ |
155 | return NULL; | 156 | if (ima_inode_alloc(inode)) |
156 | } | 157 | goto out_free_security; |
157 | 158 | ||
158 | spin_lock_init(&inode->i_lock); | 159 | spin_lock_init(&inode->i_lock); |
159 | lockdep_set_class(&inode->i_lock, &sb->s_type->i_lock_key); | 160 | lockdep_set_class(&inode->i_lock, &sb->s_type->i_lock_key); |
@@ -189,6 +190,15 @@ struct inode *inode_init_always(struct super_block *sb, struct inode *inode) | |||
189 | inode->i_mapping = mapping; | 190 | inode->i_mapping = mapping; |
190 | 191 | ||
191 | return inode; | 192 | return inode; |
193 | |||
194 | out_free_security: | ||
195 | security_inode_free(inode); | ||
196 | out_free_inode: | ||
197 | if (inode->i_sb->s_op->destroy_inode) | ||
198 | inode->i_sb->s_op->destroy_inode(inode); | ||
199 | else | ||
200 | kmem_cache_free(inode_cachep, (inode)); | ||
201 | return NULL; | ||
192 | } | 202 | } |
193 | EXPORT_SYMBOL(inode_init_always); | 203 | EXPORT_SYMBOL(inode_init_always); |
194 | 204 | ||
@@ -284,7 +294,7 @@ void clear_inode(struct inode *inode) | |||
284 | BUG_ON(!(inode->i_state & I_FREEING)); | 294 | BUG_ON(!(inode->i_state & I_FREEING)); |
285 | BUG_ON(inode->i_state & I_CLEAR); | 295 | BUG_ON(inode->i_state & I_CLEAR); |
286 | inode_sync_wait(inode); | 296 | inode_sync_wait(inode); |
287 | DQUOT_DROP(inode); | 297 | vfs_dq_drop(inode); |
288 | if (inode->i_sb->s_op->clear_inode) | 298 | if (inode->i_sb->s_op->clear_inode) |
289 | inode->i_sb->s_op->clear_inode(inode); | 299 | inode->i_sb->s_op->clear_inode(inode); |
290 | if (S_ISBLK(inode->i_mode) && inode->i_bdev) | 300 | if (S_ISBLK(inode->i_mode) && inode->i_bdev) |
@@ -356,6 +366,8 @@ static int invalidate_list(struct list_head *head, struct list_head *dispose) | |||
356 | if (tmp == head) | 366 | if (tmp == head) |
357 | break; | 367 | break; |
358 | inode = list_entry(tmp, struct inode, i_sb_list); | 368 | inode = list_entry(tmp, struct inode, i_sb_list); |
369 | if (inode->i_state & I_NEW) | ||
370 | continue; | ||
359 | invalidate_inode_buffers(inode); | 371 | invalidate_inode_buffers(inode); |
360 | if (!atomic_read(&inode->i_count)) { | 372 | if (!atomic_read(&inode->i_count)) { |
361 | list_move(&inode->i_list, dispose); | 373 | list_move(&inode->i_list, dispose); |
@@ -1158,7 +1170,7 @@ void generic_delete_inode(struct inode *inode) | |||
1158 | if (op->delete_inode) { | 1170 | if (op->delete_inode) { |
1159 | void (*delete)(struct inode *) = op->delete_inode; | 1171 | void (*delete)(struct inode *) = op->delete_inode; |
1160 | if (!is_bad_inode(inode)) | 1172 | if (!is_bad_inode(inode)) |
1161 | DQUOT_INIT(inode); | 1173 | vfs_dq_init(inode); |
1162 | /* Filesystems implementing their own | 1174 | /* Filesystems implementing their own |
1163 | * s_op->delete_inode are required to call | 1175 | * s_op->delete_inode are required to call |
1164 | * truncate_inode_pages and clear_inode() | 1176 | * truncate_inode_pages and clear_inode() |
@@ -1290,6 +1302,40 @@ sector_t bmap(struct inode * inode, sector_t block) | |||
1290 | } | 1302 | } |
1291 | EXPORT_SYMBOL(bmap); | 1303 | EXPORT_SYMBOL(bmap); |
1292 | 1304 | ||
1305 | /* | ||
1306 | * With relative atime, only update atime if the previous atime is | ||
1307 | * earlier than either the ctime or mtime or if at least a day has | ||
1308 | * passed since the last atime update. | ||
1309 | */ | ||
1310 | static int relatime_need_update(struct vfsmount *mnt, struct inode *inode, | ||
1311 | struct timespec now) | ||
1312 | { | ||
1313 | |||
1314 | if (!(mnt->mnt_flags & MNT_RELATIME)) | ||
1315 | return 1; | ||
1316 | /* | ||
1317 | * Is mtime younger than atime? If yes, update atime: | ||
1318 | */ | ||
1319 | if (timespec_compare(&inode->i_mtime, &inode->i_atime) >= 0) | ||
1320 | return 1; | ||
1321 | /* | ||
1322 | * Is ctime younger than atime? If yes, update atime: | ||
1323 | */ | ||
1324 | if (timespec_compare(&inode->i_ctime, &inode->i_atime) >= 0) | ||
1325 | return 1; | ||
1326 | |||
1327 | /* | ||
1328 | * Is the previous atime value older than a day? If yes, | ||
1329 | * update atime: | ||
1330 | */ | ||
1331 | if ((long)(now.tv_sec - inode->i_atime.tv_sec) >= 24*60*60) | ||
1332 | return 1; | ||
1333 | /* | ||
1334 | * Good, we can skip the atime update: | ||
1335 | */ | ||
1336 | return 0; | ||
1337 | } | ||
1338 | |||
1293 | /** | 1339 | /** |
1294 | * touch_atime - update the access time | 1340 | * touch_atime - update the access time |
1295 | * @mnt: mount the inode is accessed on | 1341 | * @mnt: mount the inode is accessed on |
@@ -1317,17 +1363,12 @@ void touch_atime(struct vfsmount *mnt, struct dentry *dentry) | |||
1317 | goto out; | 1363 | goto out; |
1318 | if ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)) | 1364 | if ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)) |
1319 | goto out; | 1365 | goto out; |
1320 | if (mnt->mnt_flags & MNT_RELATIME) { | ||
1321 | /* | ||
1322 | * With relative atime, only update atime if the previous | ||
1323 | * atime is earlier than either the ctime or mtime. | ||
1324 | */ | ||
1325 | if (timespec_compare(&inode->i_mtime, &inode->i_atime) < 0 && | ||
1326 | timespec_compare(&inode->i_ctime, &inode->i_atime) < 0) | ||
1327 | goto out; | ||
1328 | } | ||
1329 | 1366 | ||
1330 | now = current_fs_time(inode->i_sb); | 1367 | now = current_fs_time(inode->i_sb); |
1368 | |||
1369 | if (!relatime_need_update(mnt, inode, now)) | ||
1370 | goto out; | ||
1371 | |||
1331 | if (timespec_equal(&inode->i_atime, &now)) | 1372 | if (timespec_equal(&inode->i_atime, &now)) |
1332 | goto out; | 1373 | goto out; |
1333 | 1374 | ||