4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <linux/bio.h>
13 #include <linux/mpage.h>
14 #include <linux/writeback.h>
15 #include <linux/blkdev.h>
16 #include <linux/f2fs_fs.h>
17 #include <linux/pagevec.h>
18 #include <linux/swap.h>
23 #include <trace/events/f2fs.h>
25 static struct kmem_cache *orphan_entry_slab;
26 static struct kmem_cache *inode_entry_slab;
29 * We guarantee no failure on the returned page.
31 struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index)
33 struct address_space *mapping = sbi->meta_inode->i_mapping;
34 struct page *page = NULL;
36 page = grab_cache_page(mapping, index);
42 /* We wait writeback only inside grab_meta_page() */
43 wait_on_page_writeback(page);
44 SetPageUptodate(page);
49 * We guarantee no failure on the returned page.
51 struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index)
53 struct address_space *mapping = sbi->meta_inode->i_mapping;
56 page = grab_cache_page(mapping, index);
61 if (PageUptodate(page))
64 if (f2fs_readpage(sbi, page, index, READ_SYNC))
68 if (page->mapping != mapping) {
69 f2fs_put_page(page, 1);
73 mark_page_accessed(page);
77 static int f2fs_write_meta_page(struct page *page,
78 struct writeback_control *wbc)
80 struct inode *inode = page->mapping->host;
81 struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
83 /* Should not write any meta pages, if any IO error was occurred */
84 if (wbc->for_reclaim || sbi->por_doing ||
85 is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)) {
86 dec_page_count(sbi, F2FS_DIRTY_META);
89 return AOP_WRITEPAGE_ACTIVATE;
92 wait_on_page_writeback(page);
94 write_meta_page(sbi, page);
95 dec_page_count(sbi, F2FS_DIRTY_META);
100 static int f2fs_write_meta_pages(struct address_space *mapping,
101 struct writeback_control *wbc)
103 struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
104 struct block_device *bdev = sbi->sb->s_bdev;
107 if (wbc->for_kupdate)
110 if (get_pages(sbi, F2FS_DIRTY_META) == 0)
113 /* if mounting is failed, skip writing node pages */
114 mutex_lock(&sbi->cp_mutex);
115 written = sync_meta_pages(sbi, META, bio_get_nr_vecs(bdev));
116 mutex_unlock(&sbi->cp_mutex);
117 wbc->nr_to_write -= written;
121 long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
124 struct address_space *mapping = sbi->meta_inode->i_mapping;
125 pgoff_t index = 0, end = LONG_MAX;
128 struct writeback_control wbc = {
132 pagevec_init(&pvec, 0);
134 while (index <= end) {
136 nr_pages = pagevec_lookup_tag(&pvec, mapping, &index,
138 min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1);
142 for (i = 0; i < nr_pages; i++) {
143 struct page *page = pvec.pages[i];
145 BUG_ON(page->mapping != mapping);
146 BUG_ON(!PageDirty(page));
147 clear_page_dirty_for_io(page);
148 if (f2fs_write_meta_page(page, &wbc)) {
152 if (nwritten++ >= nr_to_write)
155 pagevec_release(&pvec);
160 f2fs_submit_bio(sbi, type, nr_to_write == LONG_MAX);
165 static int f2fs_set_meta_page_dirty(struct page *page)
167 struct address_space *mapping = page->mapping;
168 struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
170 SetPageUptodate(page);
171 if (!PageDirty(page)) {
172 __set_page_dirty_nobuffers(page);
173 inc_page_count(sbi, F2FS_DIRTY_META);
179 const struct address_space_operations f2fs_meta_aops = {
180 .writepage = f2fs_write_meta_page,
181 .writepages = f2fs_write_meta_pages,
182 .set_page_dirty = f2fs_set_meta_page_dirty,
185 int acquire_orphan_inode(struct f2fs_sb_info *sbi)
187 unsigned int max_orphans;
191 * considering 512 blocks in a segment 5 blocks are needed for cp
192 * and log segment summaries. Remaining blocks are used to keep
193 * orphan entries with the limitation one reserved segment
194 * for cp pack we can have max 1020*507 orphan entries
196 max_orphans = (sbi->blocks_per_seg - 5) * F2FS_ORPHANS_PER_BLOCK;
197 mutex_lock(&sbi->orphan_inode_mutex);
198 if (sbi->n_orphans >= max_orphans)
202 mutex_unlock(&sbi->orphan_inode_mutex);
206 void release_orphan_inode(struct f2fs_sb_info *sbi)
208 mutex_lock(&sbi->orphan_inode_mutex);
209 BUG_ON(sbi->n_orphans == 0);
211 mutex_unlock(&sbi->orphan_inode_mutex);
214 void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
216 struct list_head *head, *this;
217 struct orphan_inode_entry *new = NULL, *orphan = NULL;
219 mutex_lock(&sbi->orphan_inode_mutex);
220 head = &sbi->orphan_inode_list;
221 list_for_each(this, head) {
222 orphan = list_entry(this, struct orphan_inode_entry, list);
223 if (orphan->ino == ino)
225 if (orphan->ino > ino)
230 new = kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
237 /* add new_oentry into list which is sorted by inode number */
239 list_add(&new->list, this->prev);
241 list_add_tail(&new->list, head);
243 mutex_unlock(&sbi->orphan_inode_mutex);
246 void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
248 struct list_head *head;
249 struct orphan_inode_entry *orphan;
251 mutex_lock(&sbi->orphan_inode_mutex);
252 head = &sbi->orphan_inode_list;
253 list_for_each_entry(orphan, head, list) {
254 if (orphan->ino == ino) {
255 list_del(&orphan->list);
256 kmem_cache_free(orphan_entry_slab, orphan);
257 BUG_ON(sbi->n_orphans == 0);
262 mutex_unlock(&sbi->orphan_inode_mutex);
265 static void recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
267 struct inode *inode = f2fs_iget(sbi->sb, ino);
268 BUG_ON(IS_ERR(inode));
271 /* truncate all the data during iput */
275 int recover_orphan_inodes(struct f2fs_sb_info *sbi)
277 block_t start_blk, orphan_blkaddr, i, j;
279 if (!is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG))
283 start_blk = __start_cp_addr(sbi) + 1;
284 orphan_blkaddr = __start_sum_addr(sbi) - 1;
286 for (i = 0; i < orphan_blkaddr; i++) {
287 struct page *page = get_meta_page(sbi, start_blk + i);
288 struct f2fs_orphan_block *orphan_blk;
290 orphan_blk = (struct f2fs_orphan_block *)page_address(page);
291 for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) {
292 nid_t ino = le32_to_cpu(orphan_blk->ino[j]);
293 recover_orphan_inode(sbi, ino);
295 f2fs_put_page(page, 1);
297 /* clear Orphan Flag */
298 clear_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG);
303 static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk)
305 struct list_head *head, *this, *next;
306 struct f2fs_orphan_block *orphan_blk = NULL;
307 struct page *page = NULL;
308 unsigned int nentries = 0;
309 unsigned short index = 1;
310 unsigned short orphan_blocks;
312 orphan_blocks = (unsigned short)((sbi->n_orphans +
313 (F2FS_ORPHANS_PER_BLOCK - 1)) / F2FS_ORPHANS_PER_BLOCK);
315 mutex_lock(&sbi->orphan_inode_mutex);
316 head = &sbi->orphan_inode_list;
318 /* loop for each orphan inode entry and write them in Jornal block */
319 list_for_each_safe(this, next, head) {
320 struct orphan_inode_entry *orphan;
322 orphan = list_entry(this, struct orphan_inode_entry, list);
324 if (nentries == F2FS_ORPHANS_PER_BLOCK) {
326 * an orphan block is full of 1020 entries,
327 * then we need to flush current orphan blocks
328 * and bring another one in memory
330 orphan_blk->blk_addr = cpu_to_le16(index);
331 orphan_blk->blk_count = cpu_to_le16(orphan_blocks);
332 orphan_blk->entry_count = cpu_to_le32(nentries);
333 set_page_dirty(page);
334 f2fs_put_page(page, 1);
343 page = grab_meta_page(sbi, start_blk);
344 orphan_blk = (struct f2fs_orphan_block *)page_address(page);
345 memset(orphan_blk, 0, sizeof(*orphan_blk));
347 orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino);
352 orphan_blk->blk_addr = cpu_to_le16(index);
353 orphan_blk->blk_count = cpu_to_le16(orphan_blocks);
354 orphan_blk->entry_count = cpu_to_le32(nentries);
355 set_page_dirty(page);
356 f2fs_put_page(page, 1);
358 mutex_unlock(&sbi->orphan_inode_mutex);
361 static struct page *validate_checkpoint(struct f2fs_sb_info *sbi,
362 block_t cp_addr, unsigned long long *version)
364 struct page *cp_page_1, *cp_page_2 = NULL;
365 unsigned long blk_size = sbi->blocksize;
366 struct f2fs_checkpoint *cp_block;
367 unsigned long long cur_version = 0, pre_version = 0;
371 /* Read the 1st cp block in this CP pack */
372 cp_page_1 = get_meta_page(sbi, cp_addr);
374 /* get the version number */
375 cp_block = (struct f2fs_checkpoint *)page_address(cp_page_1);
376 crc_offset = le32_to_cpu(cp_block->checksum_offset);
377 if (crc_offset >= blk_size)
380 crc = le32_to_cpu(*((__u32 *)((unsigned char *)cp_block + crc_offset)));
381 if (!f2fs_crc_valid(crc, cp_block, crc_offset))
384 pre_version = cur_cp_version(cp_block);
386 /* Read the 2nd cp block in this CP pack */
387 cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1;
388 cp_page_2 = get_meta_page(sbi, cp_addr);
390 cp_block = (struct f2fs_checkpoint *)page_address(cp_page_2);
391 crc_offset = le32_to_cpu(cp_block->checksum_offset);
392 if (crc_offset >= blk_size)
395 crc = le32_to_cpu(*((__u32 *)((unsigned char *)cp_block + crc_offset)));
396 if (!f2fs_crc_valid(crc, cp_block, crc_offset))
399 cur_version = cur_cp_version(cp_block);
401 if (cur_version == pre_version) {
402 *version = cur_version;
403 f2fs_put_page(cp_page_2, 1);
407 f2fs_put_page(cp_page_2, 1);
409 f2fs_put_page(cp_page_1, 1);
413 int get_valid_checkpoint(struct f2fs_sb_info *sbi)
415 struct f2fs_checkpoint *cp_block;
416 struct f2fs_super_block *fsb = sbi->raw_super;
417 struct page *cp1, *cp2, *cur_page;
418 unsigned long blk_size = sbi->blocksize;
419 unsigned long long cp1_version = 0, cp2_version = 0;
420 unsigned long long cp_start_blk_no;
422 sbi->ckpt = kzalloc(blk_size, GFP_KERNEL);
426 * Finding out valid cp block involves read both
427 * sets( cp pack1 and cp pack 2)
429 cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr);
430 cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version);
432 /* The second checkpoint pack should start at the next segment */
433 cp_start_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg);
434 cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version);
437 if (ver_after(cp2_version, cp1_version))
449 cp_block = (struct f2fs_checkpoint *)page_address(cur_page);
450 memcpy(sbi->ckpt, cp_block, blk_size);
452 f2fs_put_page(cp1, 1);
453 f2fs_put_page(cp2, 1);
461 static int __add_dirty_inode(struct inode *inode, struct dir_inode_entry *new)
463 struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
464 struct list_head *head = &sbi->dir_inode_list;
465 struct list_head *this;
467 list_for_each(this, head) {
468 struct dir_inode_entry *entry;
469 entry = list_entry(this, struct dir_inode_entry, list);
470 if (entry->inode == inode)
473 list_add_tail(&new->list, head);
474 #ifdef CONFIG_F2FS_STAT_FS
480 void set_dirty_dir_page(struct inode *inode, struct page *page)
482 struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
483 struct dir_inode_entry *new;
485 if (!S_ISDIR(inode->i_mode))
488 new = kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
494 INIT_LIST_HEAD(&new->list);
496 spin_lock(&sbi->dir_inode_lock);
497 if (__add_dirty_inode(inode, new))
498 kmem_cache_free(inode_entry_slab, new);
500 inc_page_count(sbi, F2FS_DIRTY_DENTS);
501 inode_inc_dirty_dents(inode);
502 SetPagePrivate(page);
503 spin_unlock(&sbi->dir_inode_lock);
506 void add_dirty_dir_inode(struct inode *inode)
508 struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
509 struct dir_inode_entry *new;
511 new = kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
517 INIT_LIST_HEAD(&new->list);
519 spin_lock(&sbi->dir_inode_lock);
520 if (__add_dirty_inode(inode, new))
521 kmem_cache_free(inode_entry_slab, new);
522 spin_unlock(&sbi->dir_inode_lock);
525 void remove_dirty_dir_inode(struct inode *inode)
527 struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
528 struct list_head *head = &sbi->dir_inode_list;
529 struct list_head *this;
531 if (!S_ISDIR(inode->i_mode))
534 spin_lock(&sbi->dir_inode_lock);
535 if (atomic_read(&F2FS_I(inode)->dirty_dents)) {
536 spin_unlock(&sbi->dir_inode_lock);
540 list_for_each(this, head) {
541 struct dir_inode_entry *entry;
542 entry = list_entry(this, struct dir_inode_entry, list);
543 if (entry->inode == inode) {
544 list_del(&entry->list);
545 kmem_cache_free(inode_entry_slab, entry);
546 #ifdef CONFIG_F2FS_STAT_FS
552 spin_unlock(&sbi->dir_inode_lock);
554 /* Only from the recovery routine */
555 if (is_inode_flag_set(F2FS_I(inode), FI_DELAY_IPUT)) {
556 clear_inode_flag(F2FS_I(inode), FI_DELAY_IPUT);
561 struct inode *check_dirty_dir_inode(struct f2fs_sb_info *sbi, nid_t ino)
563 struct list_head *head = &sbi->dir_inode_list;
564 struct list_head *this;
565 struct inode *inode = NULL;
567 spin_lock(&sbi->dir_inode_lock);
568 list_for_each(this, head) {
569 struct dir_inode_entry *entry;
570 entry = list_entry(this, struct dir_inode_entry, list);
571 if (entry->inode->i_ino == ino) {
572 inode = entry->inode;
576 spin_unlock(&sbi->dir_inode_lock);
580 void sync_dirty_dir_inodes(struct f2fs_sb_info *sbi)
582 struct list_head *head = &sbi->dir_inode_list;
583 struct dir_inode_entry *entry;
586 spin_lock(&sbi->dir_inode_lock);
587 if (list_empty(head)) {
588 spin_unlock(&sbi->dir_inode_lock);
591 entry = list_entry(head->next, struct dir_inode_entry, list);
592 inode = igrab(entry->inode);
593 spin_unlock(&sbi->dir_inode_lock);
595 filemap_flush(inode->i_mapping);
599 * We should submit bio, since it exists several
600 * wribacking dentry pages in the freeing inode.
602 f2fs_submit_bio(sbi, DATA, true);
608 * Freeze all the FS-operations for checkpoint.
610 static void block_operations(struct f2fs_sb_info *sbi)
612 struct writeback_control wbc = {
613 .sync_mode = WB_SYNC_ALL,
614 .nr_to_write = LONG_MAX,
617 struct blk_plug plug;
619 blk_start_plug(&plug);
623 /* write all the dirty dentry pages */
624 if (get_pages(sbi, F2FS_DIRTY_DENTS)) {
625 f2fs_unlock_all(sbi);
626 sync_dirty_dir_inodes(sbi);
627 goto retry_flush_dents;
631 * POR: we should ensure that there is no dirty node pages
632 * until finishing nat/sit flush.
635 mutex_lock(&sbi->node_write);
637 if (get_pages(sbi, F2FS_DIRTY_NODES)) {
638 mutex_unlock(&sbi->node_write);
639 sync_node_pages(sbi, 0, &wbc);
640 goto retry_flush_nodes;
642 blk_finish_plug(&plug);
645 static void unblock_operations(struct f2fs_sb_info *sbi)
647 mutex_unlock(&sbi->node_write);
648 f2fs_unlock_all(sbi);
651 static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
653 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
656 struct page *cp_page;
657 unsigned int data_sum_blocks, orphan_blocks;
662 /* Flush all the NAT/SIT pages */
663 while (get_pages(sbi, F2FS_DIRTY_META))
664 sync_meta_pages(sbi, META, LONG_MAX);
666 next_free_nid(sbi, &last_nid);
670 * version number is already updated
672 ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi));
673 ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi));
674 ckpt->free_segment_count = cpu_to_le32(free_segments(sbi));
675 for (i = 0; i < 3; i++) {
676 ckpt->cur_node_segno[i] =
677 cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE));
678 ckpt->cur_node_blkoff[i] =
679 cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE));
680 ckpt->alloc_type[i + CURSEG_HOT_NODE] =
681 curseg_alloc_type(sbi, i + CURSEG_HOT_NODE);
683 for (i = 0; i < 3; i++) {
684 ckpt->cur_data_segno[i] =
685 cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA));
686 ckpt->cur_data_blkoff[i] =
687 cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA));
688 ckpt->alloc_type[i + CURSEG_HOT_DATA] =
689 curseg_alloc_type(sbi, i + CURSEG_HOT_DATA);
692 ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi));
693 ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi));
694 ckpt->next_free_nid = cpu_to_le32(last_nid);
696 /* 2 cp + n data seg summary + orphan inode blocks */
697 data_sum_blocks = npages_for_summary_flush(sbi);
698 if (data_sum_blocks < 3)
699 set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG);
701 clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG);
703 orphan_blocks = (sbi->n_orphans + F2FS_ORPHANS_PER_BLOCK - 1)
704 / F2FS_ORPHANS_PER_BLOCK;
705 ckpt->cp_pack_start_sum = cpu_to_le32(1 + orphan_blocks);
708 set_ckpt_flags(ckpt, CP_UMOUNT_FLAG);
709 ckpt->cp_pack_total_block_count = cpu_to_le32(2 +
710 data_sum_blocks + orphan_blocks + NR_CURSEG_NODE_TYPE);
712 clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG);
713 ckpt->cp_pack_total_block_count = cpu_to_le32(2 +
714 data_sum_blocks + orphan_blocks);
718 set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG);
720 clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG);
722 /* update SIT/NAT bitmap */
723 get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP));
724 get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP));
726 crc32 = f2fs_crc32(ckpt, le32_to_cpu(ckpt->checksum_offset));
727 *((__le32 *)((unsigned char *)ckpt +
728 le32_to_cpu(ckpt->checksum_offset)))
729 = cpu_to_le32(crc32);
731 start_blk = __start_cp_addr(sbi);
733 /* write out checkpoint buffer at block 0 */
734 cp_page = grab_meta_page(sbi, start_blk++);
735 kaddr = page_address(cp_page);
736 memcpy(kaddr, ckpt, (1 << sbi->log_blocksize));
737 set_page_dirty(cp_page);
738 f2fs_put_page(cp_page, 1);
740 if (sbi->n_orphans) {
741 write_orphan_inodes(sbi, start_blk);
742 start_blk += orphan_blocks;
745 write_data_summaries(sbi, start_blk);
746 start_blk += data_sum_blocks;
748 write_node_summaries(sbi, start_blk);
749 start_blk += NR_CURSEG_NODE_TYPE;
752 /* writeout checkpoint block */
753 cp_page = grab_meta_page(sbi, start_blk);
754 kaddr = page_address(cp_page);
755 memcpy(kaddr, ckpt, (1 << sbi->log_blocksize));
756 set_page_dirty(cp_page);
757 f2fs_put_page(cp_page, 1);
759 /* wait for previous submitted node/meta pages writeback */
760 sbi->cp_task = current;
761 while (get_pages(sbi, F2FS_WRITEBACK)) {
762 set_current_state(TASK_UNINTERRUPTIBLE);
763 if (!get_pages(sbi, F2FS_WRITEBACK))
767 __set_current_state(TASK_RUNNING);
770 filemap_fdatawait_range(sbi->node_inode->i_mapping, 0, LONG_MAX);
771 filemap_fdatawait_range(sbi->meta_inode->i_mapping, 0, LONG_MAX);
773 /* update user_block_counts */
774 sbi->last_valid_block_count = sbi->total_valid_block_count;
775 sbi->alloc_valid_block_count = 0;
777 /* Here, we only have one bio having CP pack */
778 sync_meta_pages(sbi, META_FLUSH, LONG_MAX);
780 if (!is_set_ckpt_flags(ckpt, CP_ERROR_FLAG)) {
781 clear_prefree_segments(sbi);
782 F2FS_RESET_SB_DIRT(sbi);
787 * We guarantee that this checkpoint procedure should not fail.
789 void write_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
791 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
792 unsigned long long ckpt_ver;
794 trace_f2fs_write_checkpoint(sbi->sb, is_umount, "start block_ops");
796 mutex_lock(&sbi->cp_mutex);
797 block_operations(sbi);
799 trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish block_ops");
801 f2fs_submit_bio(sbi, DATA, true);
802 f2fs_submit_bio(sbi, NODE, true);
803 f2fs_submit_bio(sbi, META, true);
806 * update checkpoint pack index
807 * Increase the version number so that
808 * SIT entries and seg summaries are written at correct place
810 ckpt_ver = cur_cp_version(ckpt);
811 ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver);
813 /* write cached NAT/SIT entries to NAT/SIT area */
814 flush_nat_entries(sbi);
815 flush_sit_entries(sbi);
817 /* unlock all the fs_lock[] in do_checkpoint() */
818 do_checkpoint(sbi, is_umount);
820 unblock_operations(sbi);
821 mutex_unlock(&sbi->cp_mutex);
823 trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish checkpoint");
826 void init_orphan_info(struct f2fs_sb_info *sbi)
828 mutex_init(&sbi->orphan_inode_mutex);
829 INIT_LIST_HEAD(&sbi->orphan_inode_list);
833 int __init create_checkpoint_caches(void)
835 orphan_entry_slab = f2fs_kmem_cache_create("f2fs_orphan_entry",
836 sizeof(struct orphan_inode_entry), NULL);
837 if (unlikely(!orphan_entry_slab))
839 inode_entry_slab = f2fs_kmem_cache_create("f2fs_dirty_dir_entry",
840 sizeof(struct dir_inode_entry), NULL);
841 if (unlikely(!inode_entry_slab)) {
842 kmem_cache_destroy(orphan_entry_slab);
848 void destroy_checkpoint_caches(void)
850 kmem_cache_destroy(orphan_entry_slab);
851 kmem_cache_destroy(inode_entry_slab);