Lines Matching refs:inode
143 static int no_open(struct inode *inode, struct file *file) in no_open() argument
158 int inode_init_always_gfp(struct super_block *sb, struct inode *inode, gfp_t gfp) in inode_init_always_gfp() argument
162 struct address_space *const mapping = &inode->i_data; in inode_init_always_gfp()
164 inode->i_sb = sb; in inode_init_always_gfp()
165 inode->i_blkbits = sb->s_blocksize_bits; in inode_init_always_gfp()
166 inode->i_flags = 0; in inode_init_always_gfp()
167 inode->i_state = 0; in inode_init_always_gfp()
168 atomic64_set(&inode->i_sequence, 0); in inode_init_always_gfp()
169 atomic_set(&inode->i_count, 1); in inode_init_always_gfp()
170 inode->i_op = &empty_iops; in inode_init_always_gfp()
171 inode->i_fop = &no_open_fops; in inode_init_always_gfp()
172 inode->i_ino = 0; in inode_init_always_gfp()
173 inode->__i_nlink = 1; in inode_init_always_gfp()
174 inode->i_opflags = 0; in inode_init_always_gfp()
176 inode->i_opflags |= IOP_XATTR; in inode_init_always_gfp()
177 i_uid_write(inode, 0); in inode_init_always_gfp()
178 i_gid_write(inode, 0); in inode_init_always_gfp()
179 atomic_set(&inode->i_writecount, 0); in inode_init_always_gfp()
180 inode->i_size = 0; in inode_init_always_gfp()
181 inode->i_write_hint = WRITE_LIFE_NOT_SET; in inode_init_always_gfp()
182 inode->i_blocks = 0; in inode_init_always_gfp()
183 inode->i_bytes = 0; in inode_init_always_gfp()
184 inode->i_generation = 0; in inode_init_always_gfp()
185 inode->i_pipe = NULL; in inode_init_always_gfp()
186 inode->i_cdev = NULL; in inode_init_always_gfp()
187 inode->i_link = NULL; in inode_init_always_gfp()
188 inode->i_dir_seq = 0; in inode_init_always_gfp()
189 inode->i_rdev = 0; in inode_init_always_gfp()
190 inode->dirtied_when = 0; in inode_init_always_gfp()
193 inode->i_wb_frn_winner = 0; in inode_init_always_gfp()
194 inode->i_wb_frn_avg_time = 0; in inode_init_always_gfp()
195 inode->i_wb_frn_history = 0; in inode_init_always_gfp()
198 spin_lock_init(&inode->i_lock); in inode_init_always_gfp()
199 lockdep_set_class(&inode->i_lock, &sb->s_type->i_lock_key); in inode_init_always_gfp()
201 init_rwsem(&inode->i_rwsem); in inode_init_always_gfp()
202 lockdep_set_class(&inode->i_rwsem, &sb->s_type->i_mutex_key); in inode_init_always_gfp()
204 atomic_set(&inode->i_dio_count, 0); in inode_init_always_gfp()
207 mapping->host = inode; in inode_init_always_gfp()
223 inode->i_private = NULL; in inode_init_always_gfp()
224 inode->i_mapping = mapping; in inode_init_always_gfp()
225 INIT_HLIST_HEAD(&inode->i_dentry); /* buggered by rcu freeing */ in inode_init_always_gfp()
227 inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED; in inode_init_always_gfp()
231 inode->i_fsnotify_mask = 0; in inode_init_always_gfp()
233 inode->i_flctx = NULL; in inode_init_always_gfp()
235 if (unlikely(security_inode_alloc(inode, gfp))) in inode_init_always_gfp()
244 void free_inode_nonrcu(struct inode *inode) in free_inode_nonrcu() argument
246 kmem_cache_free(inode_cachep, inode); in free_inode_nonrcu()
252 struct inode *inode = container_of(head, struct inode, i_rcu); in i_callback() local
253 if (inode->free_inode) in i_callback()
254 inode->free_inode(inode); in i_callback()
256 free_inode_nonrcu(inode); in i_callback()
259 static struct inode *alloc_inode(struct super_block *sb) in alloc_inode()
262 struct inode *inode; in alloc_inode() local
265 inode = ops->alloc_inode(sb); in alloc_inode()
267 inode = alloc_inode_sb(sb, inode_cachep, GFP_KERNEL); in alloc_inode()
269 if (!inode) in alloc_inode()
272 if (unlikely(inode_init_always(sb, inode))) { in alloc_inode()
274 ops->destroy_inode(inode); in alloc_inode()
278 inode->free_inode = ops->free_inode; in alloc_inode()
279 i_callback(&inode->i_rcu); in alloc_inode()
283 return inode; in alloc_inode()
286 void __destroy_inode(struct inode *inode) in __destroy_inode() argument
288 BUG_ON(inode_has_buffers(inode)); in __destroy_inode()
289 inode_detach_wb(inode); in __destroy_inode()
290 security_inode_free(inode); in __destroy_inode()
291 fsnotify_inode_delete(inode); in __destroy_inode()
292 locks_free_lock_context(inode); in __destroy_inode()
293 if (!inode->i_nlink) { in __destroy_inode()
294 WARN_ON(atomic_long_read(&inode->i_sb->s_remove_count) == 0); in __destroy_inode()
295 atomic_long_dec(&inode->i_sb->s_remove_count); in __destroy_inode()
299 if (inode->i_acl && !is_uncached_acl(inode->i_acl)) in __destroy_inode()
300 posix_acl_release(inode->i_acl); in __destroy_inode()
301 if (inode->i_default_acl && !is_uncached_acl(inode->i_default_acl)) in __destroy_inode()
302 posix_acl_release(inode->i_default_acl); in __destroy_inode()
308 static void destroy_inode(struct inode *inode) in destroy_inode() argument
310 const struct super_operations *ops = inode->i_sb->s_op; in destroy_inode()
312 BUG_ON(!list_empty(&inode->i_lru)); in destroy_inode()
313 __destroy_inode(inode); in destroy_inode()
315 ops->destroy_inode(inode); in destroy_inode()
319 inode->free_inode = ops->free_inode; in destroy_inode()
320 call_rcu(&inode->i_rcu, i_callback); in destroy_inode()
334 void drop_nlink(struct inode *inode) in drop_nlink() argument
336 WARN_ON(inode->i_nlink == 0); in drop_nlink()
337 inode->__i_nlink--; in drop_nlink()
338 if (!inode->i_nlink) in drop_nlink()
339 atomic_long_inc(&inode->i_sb->s_remove_count); in drop_nlink()
351 void clear_nlink(struct inode *inode) in clear_nlink() argument
353 if (inode->i_nlink) { in clear_nlink()
354 inode->__i_nlink = 0; in clear_nlink()
355 atomic_long_inc(&inode->i_sb->s_remove_count); in clear_nlink()
368 void set_nlink(struct inode *inode, unsigned int nlink) in set_nlink() argument
371 clear_nlink(inode); in set_nlink()
374 if (inode->i_nlink == 0) in set_nlink()
375 atomic_long_dec(&inode->i_sb->s_remove_count); in set_nlink()
377 inode->__i_nlink = nlink; in set_nlink()
390 void inc_nlink(struct inode *inode) in inc_nlink() argument
392 if (unlikely(inode->i_nlink == 0)) { in inc_nlink()
393 WARN_ON(!(inode->i_state & I_LINKABLE)); in inc_nlink()
394 atomic_long_dec(&inode->i_sb->s_remove_count); in inc_nlink()
397 inode->__i_nlink++; in inc_nlink()
422 void inode_init_once(struct inode *inode) in inode_init_once() argument
424 memset(inode, 0, sizeof(*inode)); in inode_init_once()
425 INIT_HLIST_NODE(&inode->i_hash); in inode_init_once()
426 INIT_LIST_HEAD(&inode->i_devices); in inode_init_once()
427 INIT_LIST_HEAD(&inode->i_io_list); in inode_init_once()
428 INIT_LIST_HEAD(&inode->i_wb_list); in inode_init_once()
429 INIT_LIST_HEAD(&inode->i_lru); in inode_init_once()
430 INIT_LIST_HEAD(&inode->i_sb_list); in inode_init_once()
431 __address_space_init_once(&inode->i_data); in inode_init_once()
432 i_size_ordered_init(inode); in inode_init_once()
438 struct inode *inode = (struct inode *) foo; in init_once() local
440 inode_init_once(inode); in init_once()
446 void ihold(struct inode *inode) in ihold() argument
448 WARN_ON(atomic_inc_return(&inode->i_count) < 2); in ihold()
452 static void __inode_add_lru(struct inode *inode, bool rotate) in __inode_add_lru() argument
454 if (inode->i_state & (I_DIRTY_ALL | I_SYNC | I_FREEING | I_WILL_FREE)) in __inode_add_lru()
456 if (atomic_read(&inode->i_count)) in __inode_add_lru()
458 if (!(inode->i_sb->s_flags & SB_ACTIVE)) in __inode_add_lru()
460 if (!mapping_shrinkable(&inode->i_data)) in __inode_add_lru()
463 if (list_lru_add_obj(&inode->i_sb->s_inode_lru, &inode->i_lru)) in __inode_add_lru()
466 inode->i_state |= I_REFERENCED; in __inode_add_lru()
470 struct inode *inode, u32 bit) in inode_bit_waitqueue() argument
474 bit_address = inode_state_wait_address(inode, bit); in inode_bit_waitqueue()
485 void inode_add_lru(struct inode *inode) in inode_add_lru() argument
487 __inode_add_lru(inode, false); in inode_add_lru()
490 static void inode_lru_list_del(struct inode *inode) in inode_lru_list_del() argument
492 if (list_lru_del_obj(&inode->i_sb->s_inode_lru, &inode->i_lru)) in inode_lru_list_del()
496 static void inode_pin_lru_isolating(struct inode *inode) in inode_pin_lru_isolating() argument
498 lockdep_assert_held(&inode->i_lock); in inode_pin_lru_isolating()
499 WARN_ON(inode->i_state & (I_LRU_ISOLATING | I_FREEING | I_WILL_FREE)); in inode_pin_lru_isolating()
500 inode->i_state |= I_LRU_ISOLATING; in inode_pin_lru_isolating()
503 static void inode_unpin_lru_isolating(struct inode *inode) in inode_unpin_lru_isolating() argument
505 spin_lock(&inode->i_lock); in inode_unpin_lru_isolating()
506 WARN_ON(!(inode->i_state & I_LRU_ISOLATING)); in inode_unpin_lru_isolating()
507 inode->i_state &= ~I_LRU_ISOLATING; in inode_unpin_lru_isolating()
509 inode_wake_up_bit(inode, __I_LRU_ISOLATING); in inode_unpin_lru_isolating()
510 spin_unlock(&inode->i_lock); in inode_unpin_lru_isolating()
513 static void inode_wait_for_lru_isolating(struct inode *inode) in inode_wait_for_lru_isolating() argument
518 lockdep_assert_held(&inode->i_lock); in inode_wait_for_lru_isolating()
519 if (!(inode->i_state & I_LRU_ISOLATING)) in inode_wait_for_lru_isolating()
522 wq_head = inode_bit_waitqueue(&wqe, inode, __I_LRU_ISOLATING); in inode_wait_for_lru_isolating()
529 if (!(inode->i_state & I_LRU_ISOLATING)) in inode_wait_for_lru_isolating()
531 spin_unlock(&inode->i_lock); in inode_wait_for_lru_isolating()
533 spin_lock(&inode->i_lock); in inode_wait_for_lru_isolating()
536 WARN_ON(inode->i_state & I_LRU_ISOLATING); in inode_wait_for_lru_isolating()
543 void inode_sb_list_add(struct inode *inode) in inode_sb_list_add() argument
545 spin_lock(&inode->i_sb->s_inode_list_lock); in inode_sb_list_add()
546 list_add(&inode->i_sb_list, &inode->i_sb->s_inodes); in inode_sb_list_add()
547 spin_unlock(&inode->i_sb->s_inode_list_lock); in inode_sb_list_add()
551 static inline void inode_sb_list_del(struct inode *inode) in inode_sb_list_del() argument
553 if (!list_empty(&inode->i_sb_list)) { in inode_sb_list_del()
554 spin_lock(&inode->i_sb->s_inode_list_lock); in inode_sb_list_del()
555 list_del_init(&inode->i_sb_list); in inode_sb_list_del()
556 spin_unlock(&inode->i_sb->s_inode_list_lock); in inode_sb_list_del()
578 void __insert_inode_hash(struct inode *inode, unsigned long hashval) in __insert_inode_hash() argument
580 struct hlist_head *b = inode_hashtable + hash(inode->i_sb, hashval); in __insert_inode_hash()
583 spin_lock(&inode->i_lock); in __insert_inode_hash()
584 hlist_add_head_rcu(&inode->i_hash, b); in __insert_inode_hash()
585 spin_unlock(&inode->i_lock); in __insert_inode_hash()
596 void __remove_inode_hash(struct inode *inode) in __remove_inode_hash() argument
599 spin_lock(&inode->i_lock); in __remove_inode_hash()
600 hlist_del_init_rcu(&inode->i_hash); in __remove_inode_hash()
601 spin_unlock(&inode->i_lock); in __remove_inode_hash()
608 struct inode *host; in dump_mapping()
660 void clear_inode(struct inode *inode) in clear_inode() argument
667 xa_lock_irq(&inode->i_data.i_pages); in clear_inode()
668 BUG_ON(inode->i_data.nrpages); in clear_inode()
677 xa_unlock_irq(&inode->i_data.i_pages); in clear_inode()
678 BUG_ON(!list_empty(&inode->i_data.i_private_list)); in clear_inode()
679 BUG_ON(!(inode->i_state & I_FREEING)); in clear_inode()
680 BUG_ON(inode->i_state & I_CLEAR); in clear_inode()
681 BUG_ON(!list_empty(&inode->i_wb_list)); in clear_inode()
683 inode->i_state = I_FREEING | I_CLEAR; in clear_inode()
700 static void evict(struct inode *inode) in evict() argument
702 const struct super_operations *op = inode->i_sb->s_op; in evict()
704 BUG_ON(!(inode->i_state & I_FREEING)); in evict()
705 BUG_ON(!list_empty(&inode->i_lru)); in evict()
707 if (!list_empty(&inode->i_io_list)) in evict()
708 inode_io_list_del(inode); in evict()
710 inode_sb_list_del(inode); in evict()
712 spin_lock(&inode->i_lock); in evict()
713 inode_wait_for_lru_isolating(inode); in evict()
721 inode_wait_for_writeback(inode); in evict()
722 spin_unlock(&inode->i_lock); in evict()
725 op->evict_inode(inode); in evict()
727 truncate_inode_pages_final(&inode->i_data); in evict()
728 clear_inode(inode); in evict()
730 if (S_ISCHR(inode->i_mode) && inode->i_cdev) in evict()
731 cd_forget(inode); in evict()
733 remove_inode_hash(inode); in evict()
745 spin_lock(&inode->i_lock); in evict()
752 inode_wake_up_bit(inode, __I_NEW); in evict()
753 BUG_ON(inode->i_state != (I_FREEING | I_CLEAR)); in evict()
754 spin_unlock(&inode->i_lock); in evict()
756 destroy_inode(inode); in evict()
769 struct inode *inode; in dispose_list() local
771 inode = list_first_entry(head, struct inode, i_lru); in dispose_list()
772 list_del_init(&inode->i_lru); in dispose_list()
774 evict(inode); in dispose_list()
790 struct inode *inode, *next; in evict_inodes() local
795 list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) { in evict_inodes()
796 if (atomic_read(&inode->i_count)) in evict_inodes()
799 spin_lock(&inode->i_lock); in evict_inodes()
800 if (atomic_read(&inode->i_count)) { in evict_inodes()
801 spin_unlock(&inode->i_lock); in evict_inodes()
804 if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) { in evict_inodes()
805 spin_unlock(&inode->i_lock); in evict_inodes()
809 inode->i_state |= I_FREEING; in evict_inodes()
810 inode_lru_list_del(inode); in evict_inodes()
811 spin_unlock(&inode->i_lock); in evict_inodes()
812 list_add(&inode->i_lru, &dispose); in evict_inodes()
840 struct inode *inode, *next; in invalidate_inodes() local
845 list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) { in invalidate_inodes()
846 spin_lock(&inode->i_lock); in invalidate_inodes()
847 if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) { in invalidate_inodes()
848 spin_unlock(&inode->i_lock); in invalidate_inodes()
851 if (atomic_read(&inode->i_count)) { in invalidate_inodes()
852 spin_unlock(&inode->i_lock); in invalidate_inodes()
856 inode->i_state |= I_FREEING; in invalidate_inodes()
857 inode_lru_list_del(inode); in invalidate_inodes()
858 spin_unlock(&inode->i_lock); in invalidate_inodes()
859 list_add(&inode->i_lru, &dispose); in invalidate_inodes()
887 struct inode *inode = container_of(item, struct inode, i_lru); in inode_lru_isolate() local
893 if (!spin_trylock(&inode->i_lock)) in inode_lru_isolate()
902 if (atomic_read(&inode->i_count) || in inode_lru_isolate()
903 (inode->i_state & ~I_REFERENCED) || in inode_lru_isolate()
904 !mapping_shrinkable(&inode->i_data)) { in inode_lru_isolate()
905 list_lru_isolate(lru, &inode->i_lru); in inode_lru_isolate()
906 spin_unlock(&inode->i_lock); in inode_lru_isolate()
912 if (inode->i_state & I_REFERENCED) { in inode_lru_isolate()
913 inode->i_state &= ~I_REFERENCED; in inode_lru_isolate()
914 spin_unlock(&inode->i_lock); in inode_lru_isolate()
923 if (inode_has_buffers(inode) || !mapping_empty(&inode->i_data)) { in inode_lru_isolate()
924 inode_pin_lru_isolating(inode); in inode_lru_isolate()
925 spin_unlock(&inode->i_lock); in inode_lru_isolate()
927 if (remove_inode_buffers(inode)) { in inode_lru_isolate()
929 reap = invalidate_mapping_pages(&inode->i_data, 0, -1); in inode_lru_isolate()
936 inode_unpin_lru_isolating(inode); in inode_lru_isolate()
941 WARN_ON(inode->i_state & I_NEW); in inode_lru_isolate()
942 inode->i_state |= I_FREEING; in inode_lru_isolate()
943 list_lru_isolate_move(lru, &inode->i_lru, freeable); in inode_lru_isolate()
944 spin_unlock(&inode->i_lock); in inode_lru_isolate()
967 static void __wait_on_freeing_inode(struct inode *inode, bool is_inode_hash_locked);
971 static struct inode *find_inode(struct super_block *sb, in find_inode()
973 int (*test)(struct inode *, void *), in find_inode() argument
976 struct inode *inode = NULL; in find_inode() local
985 hlist_for_each_entry_rcu(inode, head, i_hash) { in find_inode()
986 if (inode->i_sb != sb) in find_inode()
988 if (!test(inode, data)) in find_inode()
990 spin_lock(&inode->i_lock); in find_inode()
991 if (inode->i_state & (I_FREEING|I_WILL_FREE)) { in find_inode()
992 __wait_on_freeing_inode(inode, is_inode_hash_locked); in find_inode()
995 if (unlikely(inode->i_state & I_CREATING)) { in find_inode()
996 spin_unlock(&inode->i_lock); in find_inode()
1000 __iget(inode); in find_inode()
1001 spin_unlock(&inode->i_lock); in find_inode()
1003 return inode; in find_inode()
1013 static struct inode *find_inode_fast(struct super_block *sb, in find_inode_fast()
1017 struct inode *inode = NULL; in find_inode_fast() local
1026 hlist_for_each_entry_rcu(inode, head, i_hash) { in find_inode_fast()
1027 if (inode->i_ino != ino) in find_inode_fast()
1029 if (inode->i_sb != sb) in find_inode_fast()
1031 spin_lock(&inode->i_lock); in find_inode_fast()
1032 if (inode->i_state & (I_FREEING|I_WILL_FREE)) { in find_inode_fast()
1033 __wait_on_freeing_inode(inode, is_inode_hash_locked); in find_inode_fast()
1036 if (unlikely(inode->i_state & I_CREATING)) { in find_inode_fast()
1037 spin_unlock(&inode->i_lock); in find_inode_fast()
1041 __iget(inode); in find_inode_fast()
1042 spin_unlock(&inode->i_lock); in find_inode_fast()
1044 return inode; in find_inode_fast()
1102 struct inode *new_inode_pseudo(struct super_block *sb) in new_inode_pseudo()
1119 struct inode *new_inode(struct super_block *sb) in new_inode()
1121 struct inode *inode; in new_inode() local
1123 inode = new_inode_pseudo(sb); in new_inode()
1124 if (inode) in new_inode()
1125 inode_sb_list_add(inode); in new_inode()
1126 return inode; in new_inode()
1131 void lockdep_annotate_inode_mutex_key(struct inode *inode) in lockdep_annotate_inode_mutex_key() argument
1133 if (S_ISDIR(inode->i_mode)) { in lockdep_annotate_inode_mutex_key()
1134 struct file_system_type *type = inode->i_sb->s_type; in lockdep_annotate_inode_mutex_key()
1137 if (lockdep_match_class(&inode->i_rwsem, &type->i_mutex_key)) { in lockdep_annotate_inode_mutex_key()
1142 init_rwsem(&inode->i_rwsem); in lockdep_annotate_inode_mutex_key()
1143 lockdep_set_class(&inode->i_rwsem, in lockdep_annotate_inode_mutex_key()
1158 void unlock_new_inode(struct inode *inode) in unlock_new_inode() argument
1160 lockdep_annotate_inode_mutex_key(inode); in unlock_new_inode()
1161 spin_lock(&inode->i_lock); in unlock_new_inode()
1162 WARN_ON(!(inode->i_state & I_NEW)); in unlock_new_inode()
1163 inode->i_state &= ~I_NEW & ~I_CREATING; in unlock_new_inode()
1170 inode_wake_up_bit(inode, __I_NEW); in unlock_new_inode()
1171 spin_unlock(&inode->i_lock); in unlock_new_inode()
1175 void discard_new_inode(struct inode *inode) in discard_new_inode() argument
1177 lockdep_annotate_inode_mutex_key(inode); in discard_new_inode()
1178 spin_lock(&inode->i_lock); in discard_new_inode()
1179 WARN_ON(!(inode->i_state & I_NEW)); in discard_new_inode()
1180 inode->i_state &= ~I_NEW; in discard_new_inode()
1187 inode_wake_up_bit(inode, __I_NEW); in discard_new_inode()
1188 spin_unlock(&inode->i_lock); in discard_new_inode()
1189 iput(inode); in discard_new_inode()
1202 void lock_two_nondirectories(struct inode *inode1, struct inode *inode2) in lock_two_nondirectories()
1222 void unlock_two_nondirectories(struct inode *inode1, struct inode *inode2) in unlock_two_nondirectories()
1255 struct inode *inode_insert5(struct inode *inode, unsigned long hashval, in inode_insert5() argument
1256 int (*test)(struct inode *, void *), in inode_insert5() argument
1257 int (*set)(struct inode *, void *), void *data) in inode_insert5() argument
1259 struct hlist_head *head = inode_hashtable + hash(inode->i_sb, hashval); in inode_insert5()
1260 struct inode *old; in inode_insert5()
1264 old = find_inode(inode->i_sb, head, test, data, true); in inode_insert5()
1281 if (set && unlikely(set(inode, data))) { in inode_insert5()
1282 inode = NULL; in inode_insert5()
1290 spin_lock(&inode->i_lock); in inode_insert5()
1291 inode->i_state |= I_NEW; in inode_insert5()
1292 hlist_add_head_rcu(&inode->i_hash, head); in inode_insert5()
1293 spin_unlock(&inode->i_lock); in inode_insert5()
1299 if (list_empty(&inode->i_sb_list)) in inode_insert5()
1300 inode_sb_list_add(inode); in inode_insert5()
1304 return inode; in inode_insert5()
1328 struct inode *iget5_locked(struct super_block *sb, unsigned long hashval, in iget5_locked()
1329 int (*test)(struct inode *, void *), in iget5_locked() argument
1330 int (*set)(struct inode *, void *), void *data) in iget5_locked() argument
1332 struct inode *inode = ilookup5(sb, hashval, test, data); in iget5_locked() local
1334 if (!inode) { in iget5_locked()
1335 struct inode *new = alloc_inode(sb); in iget5_locked()
1338 inode = inode_insert5(new, hashval, test, set, data); in iget5_locked()
1339 if (unlikely(inode != new)) in iget5_locked()
1343 return inode; in iget5_locked()
1358 struct inode *iget5_locked_rcu(struct super_block *sb, unsigned long hashval, in iget5_locked_rcu()
1359 int (*test)(struct inode *, void *), in iget5_locked_rcu() argument
1360 int (*set)(struct inode *, void *), void *data) in iget5_locked_rcu() argument
1363 struct inode *inode, *new; in iget5_locked_rcu() local
1366 inode = find_inode(sb, head, test, data, false); in iget5_locked_rcu()
1367 if (inode) { in iget5_locked_rcu()
1368 if (IS_ERR(inode)) in iget5_locked_rcu()
1370 wait_on_inode(inode); in iget5_locked_rcu()
1371 if (unlikely(inode_unhashed(inode))) { in iget5_locked_rcu()
1372 iput(inode); in iget5_locked_rcu()
1375 return inode; in iget5_locked_rcu()
1380 inode = inode_insert5(new, hashval, test, set, data); in iget5_locked_rcu()
1381 if (unlikely(inode != new)) in iget5_locked_rcu()
1384 return inode; in iget5_locked_rcu()
1401 struct inode *iget_locked(struct super_block *sb, unsigned long ino) in iget_locked()
1404 struct inode *inode; in iget_locked() local
1406 inode = find_inode_fast(sb, head, ino, false); in iget_locked()
1407 if (inode) { in iget_locked()
1408 if (IS_ERR(inode)) in iget_locked()
1410 wait_on_inode(inode); in iget_locked()
1411 if (unlikely(inode_unhashed(inode))) { in iget_locked()
1412 iput(inode); in iget_locked()
1415 return inode; in iget_locked()
1418 inode = alloc_inode(sb); in iget_locked()
1419 if (inode) { in iget_locked()
1420 struct inode *old; in iget_locked()
1426 inode->i_ino = ino; in iget_locked()
1427 spin_lock(&inode->i_lock); in iget_locked()
1428 inode->i_state = I_NEW; in iget_locked()
1429 hlist_add_head_rcu(&inode->i_hash, head); in iget_locked()
1430 spin_unlock(&inode->i_lock); in iget_locked()
1431 inode_sb_list_add(inode); in iget_locked()
1437 return inode; in iget_locked()
1446 destroy_inode(inode); in iget_locked()
1449 inode = old; in iget_locked()
1450 wait_on_inode(inode); in iget_locked()
1451 if (unlikely(inode_unhashed(inode))) { in iget_locked()
1452 iput(inode); in iget_locked()
1456 return inode; in iget_locked()
1470 struct inode *inode; in test_inode_iunique() local
1472 hlist_for_each_entry_rcu(inode, b, i_hash) { in test_inode_iunique()
1473 if (inode->i_ino == ino && inode->i_sb == sb) in test_inode_iunique()
1518 struct inode *igrab(struct inode *inode) in igrab() argument
1520 spin_lock(&inode->i_lock); in igrab()
1521 if (!(inode->i_state & (I_FREEING|I_WILL_FREE))) { in igrab()
1522 __iget(inode); in igrab()
1523 spin_unlock(&inode->i_lock); in igrab()
1525 spin_unlock(&inode->i_lock); in igrab()
1531 inode = NULL; in igrab()
1533 return inode; in igrab()
1553 struct inode *ilookup5_nowait(struct super_block *sb, unsigned long hashval, in ilookup5_nowait()
1554 int (*test)(struct inode *, void *), void *data) in ilookup5_nowait() argument
1557 struct inode *inode; in ilookup5_nowait() local
1560 inode = find_inode(sb, head, test, data, true); in ilookup5_nowait()
1563 return IS_ERR(inode) ? NULL : inode; in ilookup5_nowait()
1584 struct inode *ilookup5(struct super_block *sb, unsigned long hashval, in ilookup5()
1585 int (*test)(struct inode *, void *), void *data) in ilookup5() argument
1587 struct inode *inode; in ilookup5() local
1589 inode = ilookup5_nowait(sb, hashval, test, data); in ilookup5()
1590 if (inode) { in ilookup5()
1591 wait_on_inode(inode); in ilookup5()
1592 if (unlikely(inode_unhashed(inode))) { in ilookup5()
1593 iput(inode); in ilookup5()
1597 return inode; in ilookup5()
1609 struct inode *ilookup(struct super_block *sb, unsigned long ino) in ilookup()
1612 struct inode *inode; in ilookup() local
1614 inode = find_inode_fast(sb, head, ino, false); in ilookup()
1616 if (inode) { in ilookup()
1617 if (IS_ERR(inode)) in ilookup()
1619 wait_on_inode(inode); in ilookup()
1620 if (unlikely(inode_unhashed(inode))) { in ilookup()
1621 iput(inode); in ilookup()
1625 return inode; in ilookup()
1652 struct inode *find_inode_nowait(struct super_block *sb, in find_inode_nowait()
1654 int (*match)(struct inode *, unsigned long, in find_inode_nowait() argument
1659 struct inode *inode, *ret_inode = NULL; in find_inode_nowait() local
1663 hlist_for_each_entry(inode, head, i_hash) { in find_inode_nowait()
1664 if (inode->i_sb != sb) in find_inode_nowait()
1666 mval = match(inode, hashval, data); in find_inode_nowait()
1670 ret_inode = inode; in find_inode_nowait()
1700 struct inode *find_inode_rcu(struct super_block *sb, unsigned long hashval, in find_inode_rcu()
1701 int (*test)(struct inode *, void *), void *data) in find_inode_rcu() argument
1704 struct inode *inode; in find_inode_rcu() local
1709 hlist_for_each_entry_rcu(inode, head, i_hash) { in find_inode_rcu()
1710 if (inode->i_sb == sb && in find_inode_rcu()
1711 !(READ_ONCE(inode->i_state) & (I_FREEING | I_WILL_FREE)) && in find_inode_rcu()
1712 test(inode, data)) in find_inode_rcu()
1713 return inode; in find_inode_rcu()
1738 struct inode *find_inode_by_ino_rcu(struct super_block *sb, in find_inode_by_ino_rcu()
1742 struct inode *inode; in find_inode_by_ino_rcu() local
1747 hlist_for_each_entry_rcu(inode, head, i_hash) { in find_inode_by_ino_rcu()
1748 if (inode->i_ino == ino && in find_inode_by_ino_rcu()
1749 inode->i_sb == sb && in find_inode_by_ino_rcu()
1750 !(READ_ONCE(inode->i_state) & (I_FREEING | I_WILL_FREE))) in find_inode_by_ino_rcu()
1751 return inode; in find_inode_by_ino_rcu()
1757 int insert_inode_locked(struct inode *inode) in insert_inode_locked() argument
1759 struct super_block *sb = inode->i_sb; in insert_inode_locked()
1760 ino_t ino = inode->i_ino; in insert_inode_locked()
1764 struct inode *old = NULL; in insert_inode_locked()
1779 spin_lock(&inode->i_lock); in insert_inode_locked()
1780 inode->i_state |= I_NEW | I_CREATING; in insert_inode_locked()
1781 hlist_add_head_rcu(&inode->i_hash, head); in insert_inode_locked()
1782 spin_unlock(&inode->i_lock); in insert_inode_locked()
1804 int insert_inode_locked4(struct inode *inode, unsigned long hashval, in insert_inode_locked4() argument
1805 int (*test)(struct inode *, void *), void *data) in insert_inode_locked4() argument
1807 struct inode *old; in insert_inode_locked4()
1809 inode->i_state |= I_CREATING; in insert_inode_locked4()
1810 old = inode_insert5(inode, hashval, test, NULL, data); in insert_inode_locked4()
1812 if (old != inode) { in insert_inode_locked4()
1821 int generic_delete_inode(struct inode *inode) in generic_delete_inode() argument
1837 static void iput_final(struct inode *inode) in iput_final() argument
1839 struct super_block *sb = inode->i_sb; in iput_final()
1840 const struct super_operations *op = inode->i_sb->s_op; in iput_final()
1844 WARN_ON(inode->i_state & I_NEW); in iput_final()
1847 drop = op->drop_inode(inode); in iput_final()
1849 drop = generic_drop_inode(inode); in iput_final()
1852 !(inode->i_state & I_DONTCACHE) && in iput_final()
1854 __inode_add_lru(inode, true); in iput_final()
1855 spin_unlock(&inode->i_lock); in iput_final()
1859 state = inode->i_state; in iput_final()
1861 WRITE_ONCE(inode->i_state, state | I_WILL_FREE); in iput_final()
1862 spin_unlock(&inode->i_lock); in iput_final()
1864 write_inode_now(inode, 1); in iput_final()
1866 spin_lock(&inode->i_lock); in iput_final()
1867 state = inode->i_state; in iput_final()
1872 WRITE_ONCE(inode->i_state, state | I_FREEING); in iput_final()
1873 if (!list_empty(&inode->i_lru)) in iput_final()
1874 inode_lru_list_del(inode); in iput_final()
1875 spin_unlock(&inode->i_lock); in iput_final()
1877 evict(inode); in iput_final()
1889 void iput(struct inode *inode) in iput() argument
1891 if (!inode) in iput()
1893 BUG_ON(inode->i_state & I_CLEAR); in iput()
1895 if (atomic_dec_and_lock(&inode->i_count, &inode->i_lock)) { in iput()
1896 if (inode->i_nlink && (inode->i_state & I_DIRTY_TIME)) { in iput()
1897 atomic_inc(&inode->i_count); in iput()
1898 spin_unlock(&inode->i_lock); in iput()
1899 trace_writeback_lazytime_iput(inode); in iput()
1900 mark_inode_dirty_sync(inode); in iput()
1903 iput_final(inode); in iput()
1923 int bmap(struct inode *inode, sector_t *block) in bmap() argument
1925 if (!inode->i_mapping->a_ops->bmap) in bmap()
1928 *block = inode->i_mapping->a_ops->bmap(inode->i_mapping, *block); in bmap()
1939 static bool relatime_need_update(struct vfsmount *mnt, struct inode *inode, in relatime_need_update() argument
1949 atime = inode_get_atime(inode); in relatime_need_update()
1950 mtime = inode_get_mtime(inode); in relatime_need_update()
1956 ctime = inode_get_ctime(inode); in relatime_need_update()
1988 int inode_update_timestamps(struct inode *inode, int flags) in inode_update_timestamps() argument
1994 struct timespec64 ctime = inode_get_ctime(inode); in inode_update_timestamps()
1995 struct timespec64 mtime = inode_get_mtime(inode); in inode_update_timestamps()
1997 now = inode_set_ctime_current(inode); in inode_update_timestamps()
2001 inode_set_mtime_to_ts(inode, now); in inode_update_timestamps()
2004 if (IS_I_VERSION(inode) && inode_maybe_inc_iversion(inode, updated)) in inode_update_timestamps()
2007 now = current_time(inode); in inode_update_timestamps()
2011 struct timespec64 atime = inode_get_atime(inode); in inode_update_timestamps()
2014 inode_set_atime_to_ts(inode, now); in inode_update_timestamps()
2034 int generic_update_time(struct inode *inode, int flags) in generic_update_time() argument
2036 int updated = inode_update_timestamps(inode, flags); in generic_update_time()
2040 dirty_flags = inode->i_sb->s_flags & SB_LAZYTIME ? I_DIRTY_TIME : I_DIRTY_SYNC; in generic_update_time()
2043 __mark_inode_dirty(inode, dirty_flags); in generic_update_time()
2052 int inode_update_time(struct inode *inode, int flags) in inode_update_time() argument
2054 if (inode->i_op->update_time) in inode_update_time()
2055 return inode->i_op->update_time(inode, flags); in inode_update_time()
2056 generic_update_time(inode, flags); in inode_update_time()
2070 bool atime_needs_update(const struct path *path, struct inode *inode) in atime_needs_update() argument
2075 if (inode->i_flags & S_NOATIME) in atime_needs_update()
2081 if (HAS_UNMAPPED_ID(mnt_idmap(mnt), inode)) in atime_needs_update()
2084 if (IS_NOATIME(inode)) in atime_needs_update()
2086 if ((inode->i_sb->s_flags & SB_NODIRATIME) && S_ISDIR(inode->i_mode)) in atime_needs_update()
2091 if ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)) in atime_needs_update()
2094 now = current_time(inode); in atime_needs_update()
2096 if (!relatime_need_update(mnt, inode, now)) in atime_needs_update()
2099 atime = inode_get_atime(inode); in atime_needs_update()
2109 struct inode *inode = d_inode(path->dentry); in touch_atime() local
2111 if (!atime_needs_update(path, inode)) in touch_atime()
2114 if (!sb_start_write_trylock(inode->i_sb)) in touch_atime()
2128 inode_update_time(inode, S_ATIME); in touch_atime()
2131 sb_end_write(inode->i_sb); in touch_atime()
2143 struct inode *inode = d_inode(dentry); in dentry_needs_remove_privs() local
2147 if (IS_NOSEC(inode)) in dentry_needs_remove_privs()
2150 mask = setattr_should_drop_suidgid(idmap, inode); in dentry_needs_remove_privs()
2175 struct inode *inode = file_inode(file); in file_remove_privs_flags() local
2179 if (IS_NOSEC(inode) || !S_ISREG(inode->i_mode)) in file_remove_privs_flags()
2194 inode_has_no_xattr(inode); in file_remove_privs_flags()
2214 static int inode_needs_update_time(struct inode *inode) in inode_needs_update_time() argument
2217 struct timespec64 now = current_time(inode); in inode_needs_update_time()
2221 if (IS_NOCMTIME(inode)) in inode_needs_update_time()
2224 ts = inode_get_mtime(inode); in inode_needs_update_time()
2228 ts = inode_get_ctime(inode); in inode_needs_update_time()
2232 if (IS_I_VERSION(inode) && inode_iversion_need_inc(inode)) in inode_needs_update_time()
2241 struct inode *inode = file_inode(file); in __file_update_time() local
2245 ret = inode_update_time(inode, sync_mode); in __file_update_time()
2269 struct inode *inode = file_inode(file); in file_update_time() local
2271 ret = inode_needs_update_time(inode); in file_update_time()
2297 struct inode *inode = file_inode(file); in file_modified_flags() local
2310 ret = inode_needs_update_time(inode); in file_modified_flags()
2353 int inode_needs_sync(struct inode *inode) in inode_needs_sync() argument
2355 if (IS_SYNC(inode)) in inode_needs_sync()
2357 if (S_ISDIR(inode->i_mode) && IS_DIRSYNC(inode)) in inode_needs_sync()
2374 static void __wait_on_freeing_inode(struct inode *inode, bool is_inode_hash_locked) in __wait_on_freeing_inode() argument
2382 if (unlikely(inode_unhashed(inode))) { in __wait_on_freeing_inode()
2384 spin_unlock(&inode->i_lock); in __wait_on_freeing_inode()
2388 wq_head = inode_bit_waitqueue(&wqe, inode, __I_NEW); in __wait_on_freeing_inode()
2390 spin_unlock(&inode->i_lock); in __wait_on_freeing_inode()
2438 sizeof(struct inode), in inode_init()
2460 void init_special_inode(struct inode *inode, umode_t mode, dev_t rdev) in init_special_inode() argument
2462 inode->i_mode = mode; in init_special_inode()
2464 inode->i_fop = &def_chr_fops; in init_special_inode()
2465 inode->i_rdev = rdev; in init_special_inode()
2468 inode->i_fop = &def_blk_fops; in init_special_inode()
2469 inode->i_rdev = rdev; in init_special_inode()
2471 inode->i_fop = &pipefifo_fops; in init_special_inode()
2476 " inode %s:%lu\n", mode, inode->i_sb->s_id, in init_special_inode()
2477 inode->i_ino); in init_special_inode()
2494 void inode_init_owner(struct mnt_idmap *idmap, struct inode *inode, in inode_init_owner() argument
2495 const struct inode *dir, umode_t mode) in inode_init_owner()
2497 inode_fsuid_set(inode, idmap); in inode_init_owner()
2499 inode->i_gid = dir->i_gid; in inode_init_owner()
2505 inode_fsgid_set(inode, idmap); in inode_init_owner()
2506 inode->i_mode = mode; in inode_init_owner()
2525 const struct inode *inode) in inode_owner_or_capable() argument
2530 vfsuid = i_uid_into_vfsuid(idmap, inode); in inode_owner_or_capable()
2544 bool inode_dio_finished(const struct inode *inode) in inode_dio_finished() argument
2546 return atomic_read(&inode->i_dio_count) == 0; in inode_dio_finished()
2560 void inode_dio_wait(struct inode *inode) in inode_dio_wait() argument
2562 wait_var_event(&inode->i_dio_count, inode_dio_finished(inode)); in inode_dio_wait()
2566 void inode_dio_wait_interruptible(struct inode *inode) in inode_dio_wait_interruptible() argument
2568 wait_var_event_interruptible(&inode->i_dio_count, in inode_dio_wait_interruptible()
2569 inode_dio_finished(inode)); in inode_dio_wait_interruptible()
2589 void inode_set_flags(struct inode *inode, unsigned int flags, in inode_set_flags() argument
2593 set_mask_bits(&inode->i_flags, mask, flags); in inode_set_flags()
2597 void inode_nohighmem(struct inode *inode) in inode_nohighmem() argument
2599 mapping_set_gfp_mask(inode->i_mapping, GFP_USER); in inode_nohighmem()
2612 struct timespec64 timestamp_truncate(struct timespec64 t, struct inode *inode) in timestamp_truncate() argument
2614 struct super_block *sb = inode->i_sb; in timestamp_truncate()
2644 struct timespec64 current_time(struct inode *inode) in current_time() argument
2649 return timestamp_truncate(now, inode); in current_time()
2660 struct timespec64 inode_set_ctime_current(struct inode *inode) in inode_set_ctime_current() argument
2662 struct timespec64 now = current_time(inode); in inode_set_ctime_current()
2664 inode_set_ctime_to_ts(inode, now); in inode_set_ctime_current()
2682 const struct inode *inode, vfsgid_t vfsgid) in in_group_or_capable() argument
2686 if (capable_wrt_inode_uidgid(idmap, inode, CAP_FSETID)) in in_group_or_capable()
2707 const struct inode *dir, umode_t mode) in mode_strip_sgid()