Lines Matching refs:inode
3 * inode.c - 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);
208 struct inode *inode = page->mapping->host;
233 nilfs_set_file_dirty(inode, nr_dirty);
235 unsigned int nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
237 nilfs_set_file_dirty(inode, nr_dirty);
244 struct inode *inode = mapping->host;
246 if (to > inode->i_size) {
247 truncate_pagecache(inode, inode->i_size);
248 nilfs_truncate(inode);
257 struct inode *inode = mapping->host;
258 int err = nilfs_transaction_begin(inode->i_sb, NULL, 1);
267 nilfs_transaction_abort(inode->i_sb);
276 struct inode *inode = mapping->host;
285 nilfs_set_file_dirty(inode, nr_dirty);
286 err = nilfs_transaction_commit(inode->i_sb);
293 struct inode *inode = file_inode(iocb->ki_filp);
299 return blockdev_direct_IO(iocb, inode, iter, nilfs_get_block);
316 static int nilfs_insert_inode_locked(struct inode *inode,
325 return insert_inode_locked4(inode, ino, nilfs_iget_test, &args);
328 struct inode *nilfs_new_inode(struct inode *dir, umode_t mode)
332 struct inode *inode;
339 inode = new_inode(sb);
340 if (unlikely(!inode))
343 mapping_set_gfp_mask(inode->i_mapping,
344 mapping_gfp_constraint(inode->i_mapping, ~__GFP_FS));
347 ii = NILFS_I(inode);
358 "inode bitmap is inconsistent for reserved inodes");
366 nilfs_info(sb, "repaired inode bitmap for reserved inodes");
371 inode_init_owner(inode, dir, mode);
372 inode->i_ino = ino;
373 inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
390 nilfs_set_inode_flags(inode);
392 inode->i_generation = nilfs->ns_next_generation++;
394 if (nilfs_insert_inode_locked(inode, root, ino) < 0) {
399 err = nilfs_init_acl(inode, dir);
407 return inode;
410 clear_nlink(inode);
411 if (inode->i_state & I_NEW)
412 unlock_new_inode(inode);
413 iput(inode); /*
420 make_bad_inode(inode);
421 iput(inode);
426 void nilfs_set_inode_flags(struct inode *inode)
428 unsigned int flags = NILFS_I(inode)->i_flags;
441 inode_set_flags(inode, new_fl, S_SYNC | S_APPEND | S_IMMUTABLE |
445 int nilfs_read_inode_common(struct inode *inode,
448 struct nilfs_inode_info *ii = NILFS_I(inode);
451 inode->i_mode = le16_to_cpu(raw_inode->i_mode);
452 i_uid_write(inode, le32_to_cpu(raw_inode->i_uid));
453 i_gid_write(inode, le32_to_cpu(raw_inode->i_gid));
454 set_nlink(inode, le16_to_cpu(raw_inode->i_links_count));
455 inode->i_size = le64_to_cpu(raw_inode->i_size);
456 inode->i_atime.tv_sec = le64_to_cpu(raw_inode->i_mtime);
457 inode->i_ctime.tv_sec = le64_to_cpu(raw_inode->i_ctime);
458 inode->i_mtime.tv_sec = le64_to_cpu(raw_inode->i_mtime);
459 inode->i_atime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
460 inode->i_ctime.tv_nsec = le32_to_cpu(raw_inode->i_ctime_nsec);
461 inode->i_mtime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
462 if (nilfs_is_metadata_file_inode(inode) && !S_ISREG(inode->i_mode))
463 return -EIO; /* this inode is for metadata and corrupted */
464 if (inode->i_nlink == 0)
465 return -ESTALE; /* this inode is deleted */
467 inode->i_blocks = le64_to_cpu(raw_inode->i_blocks);
471 ii->i_dir_acl = S_ISREG(inode->i_mode) ?
475 inode->i_generation = le32_to_cpu(raw_inode->i_generation);
477 if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
478 S_ISLNK(inode->i_mode)) {
490 struct inode *inode)
504 err = nilfs_read_inode_common(inode, raw_inode);
508 if (S_ISREG(inode->i_mode)) {
509 inode->i_op = &nilfs_file_inode_operations;
510 inode->i_fop = &nilfs_file_operations;
511 inode->i_mapping->a_ops = &nilfs_aops;
512 } else if (S_ISDIR(inode->i_mode)) {
513 inode->i_op = &nilfs_dir_inode_operations;
514 inode->i_fop = &nilfs_dir_operations;
515 inode->i_mapping->a_ops = &nilfs_aops;
516 } else if (S_ISLNK(inode->i_mode)) {
517 inode->i_op = &nilfs_symlink_inode_operations;
518 inode_nohighmem(inode);
519 inode->i_mapping->a_ops = &nilfs_aops;
521 inode->i_op = &nilfs_special_inode_operations;
523 inode, inode->i_mode,
529 nilfs_set_inode_flags(inode);
530 mapping_set_gfp_mask(inode->i_mapping,
531 mapping_gfp_constraint(inode->i_mapping, ~__GFP_FS));
543 static int nilfs_iget_test(struct inode *inode, void *opaque)
548 if (args->ino != inode->i_ino || args->root != NILFS_I(inode)->i_root)
551 ii = NILFS_I(inode);
571 static int nilfs_iget_set(struct inode *inode, void *opaque)
575 inode->i_ino = args->ino;
576 NILFS_I(inode)->i_cno = args->cno;
577 NILFS_I(inode)->i_root = args->root;
582 NILFS_I(inode)->i_state = BIT(NILFS_I_GCINODE);
584 NILFS_I(inode)->i_state |= BIT(NILFS_I_BTNC);
586 NILFS_I(inode)->i_state |= BIT(NILFS_I_SHADOW);
590 struct inode *nilfs_ilookup(struct super_block *sb, struct nilfs_root *root,
601 struct inode *nilfs_iget_locked(struct super_block *sb, struct nilfs_root *root,
612 struct inode *nilfs_iget(struct super_block *sb, struct nilfs_root *root,
615 struct inode *inode;
618 inode = nilfs_iget_locked(sb, root, ino);
619 if (unlikely(!inode))
621 if (!(inode->i_state & I_NEW))
622 return inode;
624 err = __nilfs_read_inode(sb, root, ino, inode);
626 iget_failed(inode);
629 unlock_new_inode(inode);
630 return inode;
633 struct inode *nilfs_iget_for_gc(struct super_block *sb, unsigned long ino,
640 struct inode *inode;
643 inode = iget5_locked(sb, ino, nilfs_iget_test, nilfs_iget_set, &args);
644 if (unlikely(!inode))
646 if (!(inode->i_state & I_NEW))
647 return inode;
649 err = nilfs_init_gcinode(inode);
651 iget_failed(inode);
654 unlock_new_inode(inode);
655 return inode;
659 * nilfs_attach_btree_node_cache - attach a B-tree node cache to the inode
660 * @inode: inode object
662 * nilfs_attach_btree_node_cache() attaches a B-tree node cache to @inode,
663 * or does nothing if the inode already has it. This function allocates
664 * an additional inode to maintain page cache of B-tree nodes one-on-one.
671 int nilfs_attach_btree_node_cache(struct inode *inode)
673 struct nilfs_inode_info *ii = NILFS_I(inode);
674 struct inode *btnc_inode;
680 args.ino = inode->i_ino;
687 btnc_inode = iget5_locked(inode->i_sb, inode->i_ino, nilfs_iget_test,
695 NILFS_I(btnc_inode)->i_assoc_inode = inode;
703 * nilfs_detach_btree_node_cache - detach the B-tree node cache from the inode
704 * @inode: inode object
707 * holder inode bound to @inode, or does nothing if @inode doesn't have it.
709 void nilfs_detach_btree_node_cache(struct inode *inode)
711 struct nilfs_inode_info *ii = NILFS_I(inode);
712 struct inode *btnc_inode = ii->i_assoc_inode;
722 * nilfs_iget_for_shadow - obtain inode for shadow mapping
723 * @inode: inode object that uses shadow mapping
727 * in one inode and the one for b-tree node pages is set up in the
728 * other inode, which is attached to the former inode.
730 * Return Value: On success, a pointer to the inode for data pages is
736 struct inode *nilfs_iget_for_shadow(struct inode *inode)
739 .ino = inode->i_ino, .root = NULL, .cno = 0, .for_gc = false,
742 struct inode *s_inode;
745 s_inode = iget5_locked(inode->i_sb, inode->i_ino, nilfs_iget_test,
750 return inode;
765 void nilfs_write_inode_common(struct inode *inode,
768 struct nilfs_inode_info *ii = NILFS_I(inode);
770 raw_inode->i_mode = cpu_to_le16(inode->i_mode);
771 raw_inode->i_uid = cpu_to_le32(i_uid_read(inode));
772 raw_inode->i_gid = cpu_to_le32(i_gid_read(inode));
773 raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
774 raw_inode->i_size = cpu_to_le64(inode->i_size);
775 raw_inode->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
776 raw_inode->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
777 raw_inode->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
778 raw_inode->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
779 raw_inode->i_blocks = cpu_to_le64(inode->i_blocks);
782 raw_inode->i_generation = cpu_to_le32(inode->i_generation);
784 if (NILFS_ROOT_METADATA_FILE(inode->i_ino)) {
785 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
796 else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
798 cpu_to_le64(huge_encode_dev(inode->i_rdev));
800 * When extending inode, nilfs->ns_inode_size should be checked
805 void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh, int flags)
807 ino_t ino = inode->i_ino;
808 struct nilfs_inode_info *ii = NILFS_I(inode);
809 struct inode *ifile = ii->i_root->ifile;
819 nilfs_write_inode_common(inode, raw_inode, 0);
861 void nilfs_truncate(struct inode *inode)
866 struct super_block *sb = inode->i_sb;
867 struct nilfs_inode_info *ii = NILFS_I(inode);
871 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
875 blkoff = (inode->i_size + blocksize - 1) >> sb->s_blocksize_bits;
878 block_truncate_page(inode->i_mapping, inode->i_size, nilfs_get_block);
882 inode->i_mtime = inode->i_ctime = current_time(inode);
883 if (IS_SYNC(inode))
886 nilfs_mark_inode_dirty(inode);
887 nilfs_set_file_dirty(inode, 0);
895 static void nilfs_clear_inode(struct inode *inode)
897 struct nilfs_inode_info *ii = NILFS_I(inode);
906 if (nilfs_is_metadata_file_inode(inode))
907 nilfs_mdt_clear(inode);
913 nilfs_detach_btree_node_cache(inode);
915 if (ii->i_root && inode->i_ino == NILFS_ROOT_INO)
919 void nilfs_evict_inode(struct inode *inode)
922 struct super_block *sb = inode->i_sb;
923 struct nilfs_inode_info *ii = NILFS_I(inode);
927 if (inode->i_nlink || !ii->i_root || unlikely(is_bad_inode(inode))) {
928 truncate_inode_pages_final(&inode->i_data);
929 clear_inode(inode);
930 nilfs_clear_inode(inode);
935 truncate_inode_pages_final(&inode->i_data);
940 * If this inode is about to be disposed after the file system
948 clear_inode(inode);
949 nilfs_clear_inode(inode);
956 nilfs_mark_inode_dirty(inode);
957 clear_inode(inode);
959 ret = nilfs_ifile_delete_inode(ii->i_root->ifile, inode->i_ino);
963 nilfs_clear_inode(inode);
965 if (IS_SYNC(inode))
977 struct inode *inode = d_inode(dentry);
978 struct super_block *sb = inode->i_sb;
990 iattr->ia_size != i_size_read(inode)) {
991 inode_dio_wait(inode);
992 truncate_setsize(inode, iattr->ia_size);
993 nilfs_truncate(inode);
996 setattr_copy(inode, iattr);
997 mark_inode_dirty(inode);
1000 err = nilfs_acl_chmod(inode);
1012 int nilfs_permission(struct inode *inode, int mask)
1014 struct nilfs_root *root = NILFS_I(inode)->i_root;
1020 return generic_permission(inode, mask);
1023 int nilfs_load_inode_block(struct inode *inode, struct buffer_head **pbh)
1025 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1026 struct nilfs_inode_info *ii = NILFS_I(inode);
1033 inode->i_ino, pbh);
1054 int nilfs_inode_dirty(struct inode *inode)
1056 struct nilfs_inode_info *ii = NILFS_I(inode);
1057 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1069 int nilfs_set_file_dirty(struct inode *inode, unsigned int nr_dirty)
1071 struct nilfs_inode_info *ii = NILFS_I(inode);
1072 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1086 if (list_empty(&ii->i_dirty) && igrab(inode) == NULL) {
1089 * this inode.
1091 nilfs_warn(inode->i_sb,
1093 inode->i_ino);
1097 * freeing inode.
1107 int __nilfs_mark_inode_dirty(struct inode *inode, int flags)
1109 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1120 err = nilfs_load_inode_block(inode, &ibh);
1122 nilfs_warn(inode->i_sb,
1123 "cannot mark inode dirty (ino=%lu): error %d loading inode block",
1124 inode->i_ino, err);
1127 nilfs_update_inode(inode, ibh, flags);
1129 nilfs_mdt_mark_dirty(NILFS_I(inode)->i_root->ifile);
1135 * nilfs_dirty_inode - reflect changes on given inode to an inode block.
1136 * @inode: inode of the file to be registered.
1138 * nilfs_dirty_inode() loads a inode block containing the specified
1139 * @inode and copies data from a nilfs_inode to a corresponding inode
1140 * entry in the inode block. This operation is excluded from the segment
1144 void nilfs_dirty_inode(struct inode *inode, int flags)
1147 struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
1149 if (is_bad_inode(inode)) {
1150 nilfs_warn(inode->i_sb,
1156 nilfs_mdt_mark_dirty(inode);
1159 nilfs_transaction_begin(inode->i_sb, &ti, 0);
1160 __nilfs_mark_inode_dirty(inode, flags);
1161 nilfs_transaction_commit(inode->i_sb); /* never fails */
1164 int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
1167 struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
1174 unsigned int blkbits = inode->i_blkbits;
1177 ret = fiemap_prep(inode, fieinfo, start, &len, 0);
1181 inode_lock(inode);
1183 isize = i_size_read(inode);
1188 delalloc_blklen = nilfs_find_uncommitted_extent(inode, blkoff,
1213 inode, blkoff, &delalloc_blkoff);
1229 NILFS_I(inode)->i_bmap, blkoff, &blkphy, maxblocks);
1291 inode_unlock(inode);