Lines Matching +full:page +full:- +full:level
1 // SPDX-License-Identifier: GPL-2.0
25 return ((unsigned long long) (i_size_read(inode) + PAGE_SIZE - 1)) in dir_blocks()
29 static unsigned int dir_buckets(unsigned int level, int dir_level) in dir_buckets() argument
31 if (level + dir_level < MAX_DIR_HASH_DEPTH / 2) in dir_buckets()
32 return BIT(level + dir_level); in dir_buckets()
37 static unsigned int bucket_blocks(unsigned int level) in bucket_blocks() argument
39 if (level < MAX_DIR_HASH_DEPTH / 2) in bucket_blocks()
45 /* If @dir is casefolded, initialize @fname->cf_name from @fname->usr_fname. */
50 struct super_block *sb = dir->i_sb; in f2fs_init_casefolded_name()
53 !is_dot_dotdot(fname->usr_fname->name, fname->usr_fname->len)) { in f2fs_init_casefolded_name()
54 fname->cf_name.name = f2fs_kmem_cache_alloc(f2fs_cf_name_slab, in f2fs_init_casefolded_name()
56 if (!fname->cf_name.name) in f2fs_init_casefolded_name()
57 return -ENOMEM; in f2fs_init_casefolded_name()
58 fname->cf_name.len = utf8_casefold(sb->s_encoding, in f2fs_init_casefolded_name()
59 fname->usr_fname, in f2fs_init_casefolded_name()
60 fname->cf_name.name, in f2fs_init_casefolded_name()
62 if ((int)fname->cf_name.len <= 0) { in f2fs_init_casefolded_name()
63 kmem_cache_free(f2fs_cf_name_slab, fname->cf_name.name); in f2fs_init_casefolded_name()
64 fname->cf_name.name = NULL; in f2fs_init_casefolded_name()
66 return -EINVAL; in f2fs_init_casefolded_name()
82 fname->usr_fname = crypt_name->usr_fname; in __f2fs_setup_filename()
83 fname->disk_name = crypt_name->disk_name; in __f2fs_setup_filename()
85 fname->crypto_buf = crypt_name->crypto_buf; in __f2fs_setup_filename()
87 if (crypt_name->is_nokey_name) { in __f2fs_setup_filename()
88 /* hash was decoded from the no-key name */ in __f2fs_setup_filename()
89 fname->hash = cpu_to_le32(crypt_name->hash); in __f2fs_setup_filename()
142 kfree(fname->crypto_buf.name); in f2fs_free_filename()
143 fname->crypto_buf.name = NULL; in f2fs_free_filename()
146 if (fname->cf_name.name) { in f2fs_free_filename()
147 kmem_cache_free(f2fs_cf_name_slab, fname->cf_name.name); in f2fs_free_filename()
148 fname->cf_name.name = NULL; in f2fs_free_filename()
153 static unsigned long dir_block_index(unsigned int level, in dir_block_index() argument
159 for (i = 0; i < level; i++) in dir_block_index()
161 bidx += idx * bucket_blocks(level); in dir_block_index()
166 struct page *dentry_page, in find_in_block()
181 * Test whether a case-insensitive directory entry matches the filename
184 * Returns 1 for a match, 0 for no match, and -errno on an error.
189 const struct super_block *sb = dir->i_sb; in f2fs_match_ci_name()
190 const struct unicode_map *um = sb->s_encoding; in f2fs_match_ci_name()
200 return -EINVAL; in f2fs_match_ci_name()
204 return -ENOMEM; in f2fs_match_ci_name()
215 * In strict mode, ignore invalid names. In non-strict mode, in f2fs_match_ci_name()
219 res = name->len == entry.len && in f2fs_match_ci_name()
220 memcmp(name->name, entry.name, name->len) == 0; in f2fs_match_ci_name()
238 if (fname->cf_name.name) { in f2fs_match_name()
239 struct qstr cf = FSTR_TO_QSTR(&fname->cf_name); in f2fs_match_name()
244 f.usr_fname = fname->usr_fname; in f2fs_match_name()
245 f.disk_name = fname->disk_name; in f2fs_match_name()
247 f.crypto_buf = fname->crypto_buf; in f2fs_match_name()
262 while (bit_pos < d->max) { in f2fs_find_target_dentry()
263 if (!test_bit_le(bit_pos, d->bitmap)) { in f2fs_find_target_dentry()
269 de = &d->dentry[bit_pos]; in f2fs_find_target_dentry()
271 if (unlikely(!de->name_len)) { in f2fs_find_target_dentry()
276 if (de->hash_code == fname->hash) { in f2fs_find_target_dentry()
277 res = f2fs_match_name(d->inode, fname, in f2fs_find_target_dentry()
278 d->filename[bit_pos], in f2fs_find_target_dentry()
279 le16_to_cpu(de->name_len)); in f2fs_find_target_dentry()
290 bit_pos += GET_DENTRY_SLOTS(le16_to_cpu(de->name_len)); in f2fs_find_target_dentry()
301 unsigned int level, in find_in_level() argument
303 struct page **res_page) in find_in_level()
305 int s = GET_DENTRY_SLOTS(fname->disk_name.len); in find_in_level()
308 struct page *dentry_page; in find_in_level()
314 nbucket = dir_buckets(level, F2FS_I(dir)->i_dir_level); in find_in_level()
315 nblock = bucket_blocks(level); in find_in_level()
317 bidx = dir_block_index(level, F2FS_I(dir)->i_dir_level, in find_in_level()
318 le32_to_cpu(fname->hash) % nbucket); in find_in_level()
325 if (PTR_ERR(dentry_page) == -ENOENT) { in find_in_level()
352 if (!de && room && F2FS_I(dir)->chash != fname->hash) { in find_in_level()
353 F2FS_I(dir)->chash = fname->hash; in find_in_level()
354 F2FS_I(dir)->clevel = level; in find_in_level()
362 struct page **res_page) in __f2fs_find_entry()
367 unsigned int level; in __f2fs_find_entry() local
379 max_depth = F2FS_I(dir)->i_current_depth; in __f2fs_find_entry()
382 dir->i_ino, max_depth); in __f2fs_find_entry()
387 for (level = 0; level < max_depth; level++) { in __f2fs_find_entry()
388 de = find_in_level(dir, level, fname, res_page); in __f2fs_find_entry()
395 F2FS_I(dir)->task = current; in __f2fs_find_entry()
401 * It returns the page where the entry was found (as a parameter - res_page),
402 * and the entry itself. Page is returned mapped and unlocked.
406 const struct qstr *child, struct page **res_page) in f2fs_find_entry()
414 if (err == -ENOENT) in f2fs_find_entry()
427 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p) in f2fs_parent_dir()
433 struct page **page) in f2fs_inode_by_name() argument
438 de = f2fs_find_entry(dir, qstr, page); in f2fs_inode_by_name()
440 res = le32_to_cpu(de->ino); in f2fs_inode_by_name()
441 f2fs_put_page(*page, 0); in f2fs_inode_by_name()
448 struct page *page, struct inode *inode) in f2fs_set_link() argument
452 lock_page(page); in f2fs_set_link()
453 f2fs_wait_on_page_writeback(page, type, true, true); in f2fs_set_link()
454 de->ino = cpu_to_le32(inode->i_ino); in f2fs_set_link()
455 de->file_type = fs_umode_to_ftype(inode->i_mode); in f2fs_set_link()
456 set_page_dirty(page); in f2fs_set_link()
460 f2fs_put_page(page, 1); in f2fs_set_link()
465 struct page *ipage) in init_dent_inode()
474 /* copy name info. to this inode page */ in init_dent_inode()
476 ri->i_namelen = cpu_to_le32(fname->disk_name.len); in init_dent_inode()
477 memcpy(ri->i_name, fname->disk_name.name, fname->disk_name.len); in init_dent_inode()
481 * Roll-forward recovery doesn't have encryption keys available, in init_dent_inode()
484 * roll-forward recovery of the dentry (i.e., make fsync'ing the in init_dent_inode()
488 if (fname->disk_name.len + sizeof(f2fs_hash_t) <= in init_dent_inode()
490 put_unaligned(fname->hash, (f2fs_hash_t *) in init_dent_inode()
491 &ri->i_name[fname->disk_name.len]); in init_dent_inode()
506 f2fs_update_dentry(inode->i_ino, inode->i_mode, d, &dot, 0, 0); in f2fs_do_make_empty_dir()
509 f2fs_update_dentry(parent->i_ino, parent->i_mode, d, &dotdot, 0, 1); in f2fs_do_make_empty_dir()
513 struct inode *parent, struct page *page) in make_empty_dir() argument
515 struct page *dentry_page; in make_empty_dir()
520 return f2fs_make_empty_inline_dir(inode, parent, page); in make_empty_dir()
522 dentry_page = f2fs_get_new_data_page(inode, page, 0, true); in make_empty_dir()
536 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, in f2fs_init_inode_metadata()
537 const struct f2fs_filename *fname, struct page *dpage) in f2fs_init_inode_metadata()
539 struct page *page; in f2fs_init_inode_metadata() local
543 page = f2fs_new_inode_page(inode); in f2fs_init_inode_metadata()
544 if (IS_ERR(page)) in f2fs_init_inode_metadata()
545 return page; in f2fs_init_inode_metadata()
547 if (S_ISDIR(inode->i_mode)) { in f2fs_init_inode_metadata()
549 get_page(page); in f2fs_init_inode_metadata()
550 err = make_empty_dir(inode, dir, page); in f2fs_init_inode_metadata()
552 lock_page(page); in f2fs_init_inode_metadata()
555 put_page(page); in f2fs_init_inode_metadata()
558 err = f2fs_init_acl(inode, dir, page, dpage); in f2fs_init_inode_metadata()
563 fname ? fname->usr_fname : NULL, page); in f2fs_init_inode_metadata()
568 err = fscrypt_set_context(inode, page); in f2fs_init_inode_metadata()
573 page = f2fs_get_node_page(F2FS_I_SB(dir), inode->i_ino); in f2fs_init_inode_metadata()
574 if (IS_ERR(page)) in f2fs_init_inode_metadata()
575 return page; in f2fs_init_inode_metadata()
578 init_dent_inode(dir, inode, fname, page); in f2fs_init_inode_metadata()
585 if (!S_ISDIR(inode->i_mode)) in f2fs_init_inode_metadata()
591 if (inode->i_nlink == 0) in f2fs_init_inode_metadata()
592 f2fs_remove_orphan_inode(F2FS_I_SB(dir), inode->i_ino); in f2fs_init_inode_metadata()
595 return page; in f2fs_init_inode_metadata()
599 f2fs_update_inode(inode, page); in f2fs_init_inode_metadata()
600 f2fs_put_page(page, 1); in f2fs_init_inode_metadata()
608 if (S_ISDIR(inode->i_mode)) in f2fs_update_parent_metadata()
615 if (F2FS_I(dir)->i_current_depth != current_depth) in f2fs_update_parent_metadata()
632 if (zero_end - zero_start >= slots) in f2fs_room_for_filename()
642 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage, in f2fs_has_enough_room()
647 int slots = GET_DENTRY_SLOTS(fname->disk_name.len); in f2fs_has_enough_room()
661 int slots = GET_DENTRY_SLOTS(name->len); in f2fs_update_dentry()
664 de = &d->dentry[bit_pos]; in f2fs_update_dentry()
665 de->hash_code = name_hash; in f2fs_update_dentry()
666 de->name_len = cpu_to_le16(name->len); in f2fs_update_dentry()
667 memcpy(d->filename[bit_pos], name->name, name->len); in f2fs_update_dentry()
668 de->ino = cpu_to_le32(ino); in f2fs_update_dentry()
669 de->file_type = fs_umode_to_ftype(mode); in f2fs_update_dentry()
671 __set_bit_le(bit_pos + i, (void *)d->bitmap); in f2fs_update_dentry()
674 (de + i)->name_len = 0; in f2fs_update_dentry()
682 unsigned int level; in f2fs_add_regular_entry() local
686 struct page *dentry_page = NULL; in f2fs_add_regular_entry()
689 struct page *page = NULL; in f2fs_add_regular_entry() local
692 level = 0; in f2fs_add_regular_entry()
693 slots = GET_DENTRY_SLOTS(fname->disk_name.len); in f2fs_add_regular_entry()
695 current_depth = F2FS_I(dir)->i_current_depth; in f2fs_add_regular_entry()
696 if (F2FS_I(dir)->chash == fname->hash) { in f2fs_add_regular_entry()
697 level = F2FS_I(dir)->clevel; in f2fs_add_regular_entry()
698 F2FS_I(dir)->chash = 0; in f2fs_add_regular_entry()
703 return -ENOSPC; in f2fs_add_regular_entry()
706 return -ENOSPC; in f2fs_add_regular_entry()
709 if (level == current_depth) in f2fs_add_regular_entry()
712 nbucket = dir_buckets(level, F2FS_I(dir)->i_dir_level); in f2fs_add_regular_entry()
713 nblock = bucket_blocks(level); in f2fs_add_regular_entry()
715 bidx = dir_block_index(level, F2FS_I(dir)->i_dir_level, in f2fs_add_regular_entry()
716 (le32_to_cpu(fname->hash) % nbucket)); in f2fs_add_regular_entry()
718 for (block = bidx; block <= (bidx + nblock - 1); block++) { in f2fs_add_regular_entry()
724 bit_pos = f2fs_room_for_filename(&dentry_blk->dentry_bitmap, in f2fs_add_regular_entry()
732 /* Move to next level to find the empty slot for new dentry */ in f2fs_add_regular_entry()
733 ++level; in f2fs_add_regular_entry()
739 f2fs_down_write(&F2FS_I(inode)->i_sem); in f2fs_add_regular_entry()
740 page = f2fs_init_inode_metadata(inode, dir, fname, NULL); in f2fs_add_regular_entry()
741 if (IS_ERR(page)) { in f2fs_add_regular_entry()
742 err = PTR_ERR(page); in f2fs_add_regular_entry()
748 f2fs_update_dentry(ino, mode, &d, &fname->disk_name, fname->hash, in f2fs_add_regular_entry()
754 f2fs_i_pino_write(inode, dir->i_ino); in f2fs_add_regular_entry()
756 /* synchronize inode page's data from inode cache */ in f2fs_add_regular_entry()
758 f2fs_update_inode(inode, page); in f2fs_add_regular_entry()
760 f2fs_put_page(page, 1); in f2fs_add_regular_entry()
766 f2fs_up_write(&F2FS_I(inode)->i_sem); in f2fs_add_regular_entry()
776 int err = -EAGAIN; in f2fs_add_dentry()
781 * i_xattr_sem -> inode_page lock used by f2fs_setxattr. in f2fs_add_dentry()
783 f2fs_down_read(&F2FS_I(dir)->i_xattr_sem); in f2fs_add_dentry()
785 f2fs_up_read(&F2FS_I(dir)->i_xattr_sem); in f2fs_add_dentry()
787 if (err == -EAGAIN) in f2fs_add_dentry()
802 struct page *page = NULL; in f2fs_do_add_link() local
814 * verify on-disk dentry one more time, which guarantees filesystem in f2fs_do_add_link()
817 if (current != F2FS_I(dir)->task) { in f2fs_do_add_link()
818 de = __f2fs_find_entry(dir, &fname, &page); in f2fs_do_add_link()
819 F2FS_I(dir)->task = NULL; in f2fs_do_add_link()
822 f2fs_put_page(page, 0); in f2fs_do_add_link()
823 err = -EEXIST; in f2fs_do_add_link()
824 } else if (IS_ERR(page)) { in f2fs_do_add_link()
825 err = PTR_ERR(page); in f2fs_do_add_link()
835 struct page *page; in f2fs_do_tmpfile() local
838 f2fs_down_write(&F2FS_I(inode)->i_sem); in f2fs_do_tmpfile()
839 page = f2fs_init_inode_metadata(inode, dir, NULL, NULL); in f2fs_do_tmpfile()
840 if (IS_ERR(page)) { in f2fs_do_tmpfile()
841 err = PTR_ERR(page); in f2fs_do_tmpfile()
844 f2fs_put_page(page, 1); in f2fs_do_tmpfile()
849 f2fs_up_write(&F2FS_I(inode)->i_sem); in f2fs_do_tmpfile()
857 f2fs_down_write(&F2FS_I(inode)->i_sem); in f2fs_drop_nlink()
859 if (S_ISDIR(inode->i_mode)) in f2fs_drop_nlink()
864 if (S_ISDIR(inode->i_mode)) { in f2fs_drop_nlink()
868 f2fs_up_write(&F2FS_I(inode)->i_sem); in f2fs_drop_nlink()
870 if (inode->i_nlink == 0) in f2fs_drop_nlink()
877 * It only removes the dentry from the dentry page, corresponding name
878 * entry in name page does not need to be touched during deletion.
880 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, in f2fs_delete_entry() argument
885 int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len)); in f2fs_delete_entry()
891 f2fs_add_ino_entry(F2FS_I_SB(dir), dir->i_ino, TRANS_DIR_INO); in f2fs_delete_entry()
894 return f2fs_delete_inline_entry(dentry, page, dir, inode); in f2fs_delete_entry()
896 lock_page(page); in f2fs_delete_entry()
897 f2fs_wait_on_page_writeback(page, DATA, true, true); in f2fs_delete_entry()
899 dentry_blk = page_address(page); in f2fs_delete_entry()
900 bit_pos = dentry - dentry_blk->dentry; in f2fs_delete_entry()
902 __clear_bit_le(bit_pos + i, &dentry_blk->dentry_bitmap); in f2fs_delete_entry()
904 /* Let's check and deallocate this dentry page */ in f2fs_delete_entry()
905 bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap, in f2fs_delete_entry()
908 set_page_dirty(page); in f2fs_delete_entry()
911 !f2fs_truncate_hole(dir, page->index, page->index + 1)) { in f2fs_delete_entry()
912 f2fs_clear_page_cache_dirty_tag(page); in f2fs_delete_entry()
913 clear_page_dirty_for_io(page); in f2fs_delete_entry()
914 ClearPageUptodate(page); in f2fs_delete_entry()
915 clear_page_private_all(page); in f2fs_delete_entry()
920 f2fs_put_page(page, 1); in f2fs_delete_entry()
932 struct page *dentry_page; in f2fs_empty_dir()
945 if (PTR_ERR(dentry_page) == -ENOENT) { in f2fs_empty_dir()
958 bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap, in f2fs_empty_dir()
979 struct f2fs_sb_info *sbi = F2FS_I_SB(d->inode); in f2fs_fill_dentries()
981 bool readdir_ra = sbi->readdir_ra; in f2fs_fill_dentries()
985 bit_pos = ((unsigned long)ctx->pos % d->max); in f2fs_fill_dentries()
990 while (bit_pos < d->max) { in f2fs_fill_dentries()
991 bit_pos = find_next_bit_le(d->bitmap, d->max, bit_pos); in f2fs_fill_dentries()
992 if (bit_pos >= d->max) in f2fs_fill_dentries()
995 de = &d->dentry[bit_pos]; in f2fs_fill_dentries()
996 if (de->name_len == 0) { in f2fs_fill_dentries()
999 "%sF2FS-fs (%s): invalid namelen(0), ino:%u, run fsck to fix.", in f2fs_fill_dentries()
1000 KERN_WARNING, sbi->sb->s_id, in f2fs_fill_dentries()
1001 le32_to_cpu(de->ino)); in f2fs_fill_dentries()
1005 ctx->pos = start_pos + bit_pos; in f2fs_fill_dentries()
1009 d_type = fs_ftype_to_dtype(de->file_type); in f2fs_fill_dentries()
1011 de_name.name = d->filename[bit_pos]; in f2fs_fill_dentries()
1012 de_name.len = le16_to_cpu(de->name_len); in f2fs_fill_dentries()
1015 bit_pos += GET_DENTRY_SLOTS(le16_to_cpu(de->name_len)); in f2fs_fill_dentries()
1016 if (unlikely(bit_pos > d->max || in f2fs_fill_dentries()
1017 le16_to_cpu(de->name_len) > F2FS_NAME_LEN)) { in f2fs_fill_dentries()
1019 __func__, le16_to_cpu(de->name_len)); in f2fs_fill_dentries()
1021 err = -EFSCORRUPTED; in f2fs_fill_dentries()
1026 if (IS_ENCRYPTED(d->inode)) { in f2fs_fill_dentries()
1027 int save_len = fstr->len; in f2fs_fill_dentries()
1029 err = fscrypt_fname_disk_to_usr(d->inode, in f2fs_fill_dentries()
1030 (u32)le32_to_cpu(de->hash_code), in f2fs_fill_dentries()
1036 fstr->len = save_len; in f2fs_fill_dentries()
1040 le32_to_cpu(de->ino), d_type)) { in f2fs_fill_dentries()
1046 f2fs_ra_node_page(sbi, le32_to_cpu(de->ino)); in f2fs_fill_dentries()
1048 ctx->pos = start_pos + bit_pos; in f2fs_fill_dentries()
1062 struct page *dentry_page = NULL; in f2fs_readdir()
1063 struct file_ra_state *ra = &file->f_ra; in f2fs_readdir()
1064 loff_t start_pos = ctx->pos; in f2fs_readdir()
1065 unsigned int n = ((unsigned long)ctx->pos / NR_DENTRY_IN_BLOCK); in f2fs_readdir()
1085 for (; n < npages; ctx->pos = n * NR_DENTRY_IN_BLOCK) { in f2fs_readdir()
1090 err = -ERESTARTSYS; in f2fs_readdir()
1096 if (npages - n > 1 && !ra_has_index(ra, n)) in f2fs_readdir()
1097 page_cache_sync_readahead(inode->i_mapping, ra, file, n, in f2fs_readdir()
1098 min(npages - n, (pgoff_t)MAX_DIR_RA_PAGES)); in f2fs_readdir()
1103 if (err == -ENOENT) { in f2fs_readdir()
1130 trace_f2fs_readdir(inode, start_pos, ctx->pos, err); in f2fs_readdir()