Lines Matching refs:inode
3 * NILFS inode operations.
28 * @ino: inode number
31 * @for_gc: inode for GC flag
32 * @for_btnc: inode for B-tree node cache flag
33 * @for_shadow: inode for shadowed page cache flag
44 static int nilfs_iget_test(struct inode *inode, void *opaque);
46 void nilfs_inode_add_blocks(struct inode *inode, int n)
48 struct nilfs_root *root = NILFS_I(inode)->i_root;
50 inode_add_bytes(inode, i_blocksize(inode) * n);
55 void nilfs_inode_sub_blocks(struct inode *inode, int n)
57 struct nilfs_root *root = NILFS_I(inode)->i_root;
59 inode_sub_bytes(inode, i_blocksize(inode) * n);
66 * @inode: inode struct of the target file
75 int nilfs_get_block(struct inode *inode, sector_t blkoff,
78 struct nilfs_inode_info *ii = NILFS_I(inode);
79 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
82 unsigned int maxblocks = bh_result->b_size >> inode->i_blkbits;
88 map_bh(bh_result, inode->i_sb, blknum);
90 bh_result->b_size = (ret << inode->i_blkbits);
98 err = nilfs_transaction_begin(inode->i_sb, &ti, 1);
107 * from multiple callers for an inode.
111 nilfs_warn(inode->i_sb,
113 __func__, inode->i_ino,
117 nilfs_transaction_abort(inode->i_sb);
120 nilfs_mark_inode_dirty_sync(inode);
121 nilfs_transaction_commit(inode->i_sb); /* never fails */
125 map_bh(bh_result, inode->i_sb, 0);
161 struct inode *inode = mapping->host;
164 if (sb_rdonly(inode->i_sb)) {
170 err = nilfs_construct_dsync_segment(inode->i_sb, inode,
178 struct inode *inode = page->mapping->host;
181 if (sb_rdonly(inode->i_sb)) {
197 err = nilfs_construct_segment(inode->i_sb);
201 nilfs_flush_segment(inode->i_sb, inode->i_ino);
209 struct inode *inode = mapping->host;
231 nr_dirty = 1 << (folio_shift(folio) - inode->i_blkbits);
236 nilfs_set_file_dirty(inode, nr_dirty);
242 struct inode *inode = mapping->host;
244 if (to > inode->i_size) {
245 truncate_pagecache(inode, inode->i_size);
246 nilfs_truncate(inode);
255 struct inode *inode = mapping->host;
256 int err = nilfs_transaction_begin(inode->i_sb, NULL, 1);
264 nilfs_transaction_abort(inode->i_sb);
273 struct inode *inode = mapping->host;
282 nilfs_set_file_dirty(inode, nr_dirty);
283 err = nilfs_transaction_commit(inode->i_sb);
290 struct inode *inode = file_inode(iocb->ki_filp);
296 return blockdev_direct_IO(iocb, inode, iter, nilfs_get_block);
312 static int nilfs_insert_inode_locked(struct inode *inode,
321 return insert_inode_locked4(inode, ino, nilfs_iget_test, &args);
324 struct inode *nilfs_new_inode(struct inode *dir, umode_t mode)
328 struct inode *inode;
335 inode = new_inode(sb);
336 if (unlikely(!inode))
339 mapping_set_gfp_mask(inode->i_mapping,
340 mapping_gfp_constraint(inode->i_mapping, ~__GFP_FS));
343 ii = NILFS_I(inode);
354 "inode bitmap is inconsistent for reserved inodes");
362 nilfs_info(sb, "repaired inode bitmap for reserved inodes");
367 inode_init_owner(&nop_mnt_idmap, inode, dir, mode);
368 inode->i_ino = ino;
369 inode->i_mtime = inode->i_atime = inode_set_ctime_current(inode);
386 nilfs_set_inode_flags(inode);
388 inode->i_generation = nilfs->ns_next_generation++;
390 if (nilfs_insert_inode_locked(inode, root, ino) < 0) {
395 err = nilfs_init_acl(inode, dir);
403 return inode;
406 clear_nlink(inode);
407 if (inode->i_state & I_NEW)
408 unlock_new_inode(inode);
409 iput(inode); /*
416 make_bad_inode(inode);
417 iput(inode);
422 void nilfs_set_inode_flags(struct inode *inode)
424 unsigned int flags = NILFS_I(inode)->i_flags;
437 inode_set_flags(inode, new_fl, S_SYNC | S_APPEND | S_IMMUTABLE |
441 int nilfs_read_inode_common(struct inode *inode,
444 struct nilfs_inode_info *ii = NILFS_I(inode);
447 inode->i_mode = le16_to_cpu(raw_inode->i_mode);
448 i_uid_write(inode, le32_to_cpu(raw_inode->i_uid));
449 i_gid_write(inode, le32_to_cpu(raw_inode->i_gid));
450 set_nlink(inode, le16_to_cpu(raw_inode->i_links_count));
451 inode->i_size = le64_to_cpu(raw_inode->i_size);
452 inode->i_atime.tv_sec = le64_to_cpu(raw_inode->i_mtime);
453 inode_set_ctime(inode, le64_to_cpu(raw_inode->i_ctime),
455 inode->i_mtime.tv_sec = le64_to_cpu(raw_inode->i_mtime);
456 inode->i_atime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
457 inode->i_mtime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
458 if (nilfs_is_metadata_file_inode(inode) && !S_ISREG(inode->i_mode))
459 return -EIO; /* this inode is for metadata and corrupted */
460 if (inode->i_nlink == 0)
461 return -ESTALE; /* this inode is deleted */
463 inode->i_blocks = le64_to_cpu(raw_inode->i_blocks);
467 ii->i_dir_acl = S_ISREG(inode->i_mode) ?
471 inode->i_generation = le32_to_cpu(raw_inode->i_generation);
473 if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
474 S_ISLNK(inode->i_mode)) {
486 struct inode *inode)
500 err = nilfs_read_inode_common(inode, raw_inode);
504 if (S_ISREG(inode->i_mode)) {
505 inode->i_op = &nilfs_file_inode_operations;
506 inode->i_fop = &nilfs_file_operations;
507 inode->i_mapping->a_ops = &nilfs_aops;
508 } else if (S_ISDIR(inode->i_mode)) {
509 inode->i_op = &nilfs_dir_inode_operations;
510 inode->i_fop = &nilfs_dir_operations;
511 inode->i_mapping->a_ops = &nilfs_aops;
512 } else if (S_ISLNK(inode->i_mode)) {
513 inode->i_op = &nilfs_symlink_inode_operations;
514 inode_nohighmem(inode);
515 inode->i_mapping->a_ops = &nilfs_aops;
517 inode->i_op = &nilfs_special_inode_operations;
519 inode, inode->i_mode,
525 nilfs_set_inode_flags(inode);
526 mapping_set_gfp_mask(inode->i_mapping,
527 mapping_gfp_constraint(inode->i_mapping, ~__GFP_FS));
539 static int nilfs_iget_test(struct inode *inode, void *opaque)
544 if (args->ino != inode->i_ino || args->root != NILFS_I(inode)->i_root)
547 ii = NILFS_I(inode);
567 static int nilfs_iget_set(struct inode *inode, void *opaque)
571 inode->i_ino = args->ino;
572 NILFS_I(inode)->i_cno = args->cno;
573 NILFS_I(inode)->i_root = args->root;
578 NILFS_I(inode)->i_state = BIT(NILFS_I_GCINODE);
580 NILFS_I(inode)->i_state |= BIT(NILFS_I_BTNC);
582 NILFS_I(inode)->i_state |= BIT(NILFS_I_SHADOW);
586 struct inode *nilfs_ilookup(struct super_block *sb, struct nilfs_root *root,
597 struct inode *nilfs_iget_locked(struct super_block *sb, struct nilfs_root *root,
608 struct inode *nilfs_iget(struct super_block *sb, struct nilfs_root *root,
611 struct inode *inode;
614 inode = nilfs_iget_locked(sb, root, ino);
615 if (unlikely(!inode))
617 if (!(inode->i_state & I_NEW))
618 return inode;
620 err = __nilfs_read_inode(sb, root, ino, inode);
622 iget_failed(inode);
625 unlock_new_inode(inode);
626 return inode;
629 struct inode *nilfs_iget_for_gc(struct super_block *sb, unsigned long ino,
636 struct inode *inode;
639 inode = iget5_locked(sb, ino, nilfs_iget_test, nilfs_iget_set, &args);
640 if (unlikely(!inode))
642 if (!(inode->i_state & I_NEW))
643 return inode;
645 err = nilfs_init_gcinode(inode);
647 iget_failed(inode);
650 unlock_new_inode(inode);
651 return inode;
655 * nilfs_attach_btree_node_cache - attach a B-tree node cache to the inode
656 * @inode: inode object
658 * nilfs_attach_btree_node_cache() attaches a B-tree node cache to @inode,
659 * or does nothing if the inode already has it. This function allocates
660 * an additional inode to maintain page cache of B-tree nodes one-on-one.
667 int nilfs_attach_btree_node_cache(struct inode *inode)
669 struct nilfs_inode_info *ii = NILFS_I(inode);
670 struct inode *btnc_inode;
676 args.ino = inode->i_ino;
683 btnc_inode = iget5_locked(inode->i_sb, inode->i_ino, nilfs_iget_test,
691 NILFS_I(btnc_inode)->i_assoc_inode = inode;
699 * nilfs_detach_btree_node_cache - detach the B-tree node cache from the inode
700 * @inode: inode object
703 * holder inode bound to @inode, or does nothing if @inode doesn't have it.
705 void nilfs_detach_btree_node_cache(struct inode *inode)
707 struct nilfs_inode_info *ii = NILFS_I(inode);
708 struct inode *btnc_inode = ii->i_assoc_inode;
718 * nilfs_iget_for_shadow - obtain inode for shadow mapping
719 * @inode: inode object that uses shadow mapping
723 * in one inode and the one for b-tree node pages is set up in the
724 * other inode, which is attached to the former inode.
726 * Return Value: On success, a pointer to the inode for data pages is
732 struct inode *nilfs_iget_for_shadow(struct inode *inode)
735 .ino = inode->i_ino, .root = NULL, .cno = 0, .for_gc = false,
738 struct inode *s_inode;
741 s_inode = iget5_locked(inode->i_sb, inode->i_ino, nilfs_iget_test,
746 return inode;
761 void nilfs_write_inode_common(struct inode *inode,
764 struct nilfs_inode_info *ii = NILFS_I(inode);
766 raw_inode->i_mode = cpu_to_le16(inode->i_mode);
767 raw_inode->i_uid = cpu_to_le32(i_uid_read(inode));
768 raw_inode->i_gid = cpu_to_le32(i_gid_read(inode));
769 raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
770 raw_inode->i_size = cpu_to_le64(inode->i_size);
771 raw_inode->i_ctime = cpu_to_le64(inode_get_ctime(inode).tv_sec);
772 raw_inode->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
773 raw_inode->i_ctime_nsec = cpu_to_le32(inode_get_ctime(inode).tv_nsec);
774 raw_inode->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
775 raw_inode->i_blocks = cpu_to_le64(inode->i_blocks);
778 raw_inode->i_generation = cpu_to_le32(inode->i_generation);
780 if (NILFS_ROOT_METADATA_FILE(inode->i_ino)) {
781 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
792 else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
794 cpu_to_le64(huge_encode_dev(inode->i_rdev));
796 * When extending inode, nilfs->ns_inode_size should be checked
801 void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh, int flags)
803 ino_t ino = inode->i_ino;
804 struct nilfs_inode_info *ii = NILFS_I(inode);
805 struct inode *ifile = ii->i_root->ifile;
815 nilfs_write_inode_common(inode, raw_inode, 0);
857 void nilfs_truncate(struct inode *inode)
862 struct super_block *sb = inode->i_sb;
863 struct nilfs_inode_info *ii = NILFS_I(inode);
867 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
871 blkoff = (inode->i_size + blocksize - 1) >> sb->s_blocksize_bits;
874 block_truncate_page(inode->i_mapping, inode->i_size, nilfs_get_block);
878 inode->i_mtime = inode_set_ctime_current(inode);
879 if (IS_SYNC(inode))
882 nilfs_mark_inode_dirty(inode);
883 nilfs_set_file_dirty(inode, 0);
891 static void nilfs_clear_inode(struct inode *inode)
893 struct nilfs_inode_info *ii = NILFS_I(inode);
902 if (nilfs_is_metadata_file_inode(inode))
903 nilfs_mdt_clear(inode);
909 nilfs_detach_btree_node_cache(inode);
911 if (ii->i_root && inode->i_ino == NILFS_ROOT_INO)
915 void nilfs_evict_inode(struct inode *inode)
918 struct super_block *sb = inode->i_sb;
919 struct nilfs_inode_info *ii = NILFS_I(inode);
923 if (inode->i_nlink || !ii->i_root || unlikely(is_bad_inode(inode))) {
924 truncate_inode_pages_final(&inode->i_data);
925 clear_inode(inode);
926 nilfs_clear_inode(inode);
931 truncate_inode_pages_final(&inode->i_data);
936 * If this inode is about to be disposed after the file system
944 clear_inode(inode);
945 nilfs_clear_inode(inode);
952 nilfs_mark_inode_dirty(inode);
953 clear_inode(inode);
955 ret = nilfs_ifile_delete_inode(ii->i_root->ifile, inode->i_ino);
959 nilfs_clear_inode(inode);
961 if (IS_SYNC(inode))
974 struct inode *inode = d_inode(dentry);
975 struct super_block *sb = inode->i_sb;
987 iattr->ia_size != i_size_read(inode)) {
988 inode_dio_wait(inode);
989 truncate_setsize(inode, iattr->ia_size);
990 nilfs_truncate(inode);
993 setattr_copy(&nop_mnt_idmap, inode, iattr);
994 mark_inode_dirty(inode);
997 err = nilfs_acl_chmod(inode);
1009 int nilfs_permission(struct mnt_idmap *idmap, struct inode *inode,
1012 struct nilfs_root *root = NILFS_I(inode)->i_root;
1018 return generic_permission(&nop_mnt_idmap, inode, mask);
1021 int nilfs_load_inode_block(struct inode *inode, struct buffer_head **pbh)
1023 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1024 struct nilfs_inode_info *ii = NILFS_I(inode);
1031 inode->i_ino, pbh);
1052 int nilfs_inode_dirty(struct inode *inode)
1054 struct nilfs_inode_info *ii = NILFS_I(inode);
1055 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1067 int nilfs_set_file_dirty(struct inode *inode, unsigned int nr_dirty)
1069 struct nilfs_inode_info *ii = NILFS_I(inode);
1070 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1084 if (list_empty(&ii->i_dirty) && igrab(inode) == NULL) {
1087 * this inode.
1089 nilfs_warn(inode->i_sb,
1091 inode->i_ino);
1095 * freeing inode.
1105 int __nilfs_mark_inode_dirty(struct inode *inode, int flags)
1107 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1118 err = nilfs_load_inode_block(inode, &ibh);
1120 nilfs_warn(inode->i_sb,
1121 "cannot mark inode dirty (ino=%lu): error %d loading inode block",
1122 inode->i_ino, err);
1125 nilfs_update_inode(inode, ibh, flags);
1127 nilfs_mdt_mark_dirty(NILFS_I(inode)->i_root->ifile);
1133 * nilfs_dirty_inode - reflect changes on given inode to an inode block.
1134 * @inode: inode of the file to be registered.
1135 * @flags: flags to determine the dirty state of the inode
1137 * nilfs_dirty_inode() loads a inode block containing the specified
1138 * @inode and copies data from a nilfs_inode to a corresponding inode
1139 * entry in the inode block. This operation is excluded from the segment
1143 void nilfs_dirty_inode(struct inode *inode, int flags)
1146 struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
1148 if (is_bad_inode(inode)) {
1149 nilfs_warn(inode->i_sb,
1155 nilfs_mdt_mark_dirty(inode);
1158 nilfs_transaction_begin(inode->i_sb, &ti, 0);
1159 __nilfs_mark_inode_dirty(inode, flags);
1160 nilfs_transaction_commit(inode->i_sb); /* never fails */
1163 int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
1166 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1173 unsigned int blkbits = inode->i_blkbits;
1176 ret = fiemap_prep(inode, fieinfo, start, &len, 0);
1180 inode_lock(inode);
1182 isize = i_size_read(inode);
1187 delalloc_blklen = nilfs_find_uncommitted_extent(inode, blkoff,
1212 inode, blkoff, &delalloc_blkoff);
1228 NILFS_I(inode)->i_bmap, blkoff, &blkphy, maxblocks);
1290 inode_unlock(inode);