f2fs.h (e5451c8f8330e03ad3cfa16048b4daf961af434f) f2fs.h (4356e48e64374ceac6e4313244eb65158a954b40)
1/*
2 * fs/f2fs/f2fs.h
3 *
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
6 *
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

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178struct fsync_inode_entry {
179 struct list_head list; /* list head */
180 struct inode *inode; /* vfs inode pointer */
181 block_t blkaddr; /* block address locating the last fsync */
182 block_t last_dentry; /* block address locating the last dentry */
183 block_t last_inode; /* block address locating the last inode */
184};
185
1/*
2 * fs/f2fs/f2fs.h
3 *
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
6 *
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

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178struct fsync_inode_entry {
179 struct list_head list; /* list head */
180 struct inode *inode; /* vfs inode pointer */
181 block_t blkaddr; /* block address locating the last fsync */
182 block_t last_dentry; /* block address locating the last dentry */
183 block_t last_inode; /* block address locating the last inode */
184};
185
186#define nats_in_cursum(sum) (le16_to_cpu(sum->n_nats))
187#define sits_in_cursum(sum) (le16_to_cpu(sum->n_sits))
186#define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
187#define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
188
188
189#define nat_in_journal(sum, i) (sum->nat_j.entries[i].ne)
190#define nid_in_journal(sum, i) (sum->nat_j.entries[i].nid)
191#define sit_in_journal(sum, i) (sum->sit_j.entries[i].se)
192#define segno_in_journal(sum, i) (sum->sit_j.entries[i].segno)
189#define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
190#define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
191#define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
192#define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
193
193
194#define MAX_NAT_JENTRIES(sum) (NAT_JOURNAL_ENTRIES - nats_in_cursum(sum))
195#define MAX_SIT_JENTRIES(sum) (SIT_JOURNAL_ENTRIES - sits_in_cursum(sum))
194#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
195#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
196
196
197static inline int update_nats_in_cursum(struct f2fs_summary_block *rs, int i)
197static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
198{
198{
199 int before = nats_in_cursum(rs);
200 rs->n_nats = cpu_to_le16(before + i);
199 int before = nats_in_cursum(journal);
200 journal->n_nats = cpu_to_le16(before + i);
201 return before;
202}
203
201 return before;
202}
203
204static inline int update_sits_in_cursum(struct f2fs_summary_block *rs, int i)
204static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
205{
205{
206 int before = sits_in_cursum(rs);
207 rs->n_sits = cpu_to_le16(before + i);
206 int before = sits_in_cursum(journal);
207 journal->n_sits = cpu_to_le16(before + i);
208 return before;
209}
210
208 return before;
209}
210
211static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size,
212 int type)
211static inline bool __has_cursum_space(struct f2fs_journal *journal,
212 int size, int type)
213{
214 if (type == NAT_JOURNAL)
213{
214 if (type == NAT_JOURNAL)
215 return size <= MAX_NAT_JENTRIES(sum);
216 return size <= MAX_SIT_JENTRIES(sum);
215 return size <= MAX_NAT_JENTRIES(journal);
216 return size <= MAX_SIT_JENTRIES(journal);
217}
218
219/*
220 * ioctl commands
221 */
222#define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
223#define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
224#define F2FS_IOC_GETVERSION FS_IOC_GETVERSION

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349 u32 blk; /* start block address of the extent */
350 unsigned int len; /* length of the extent */
351};
352
353struct extent_node {
354 struct rb_node rb_node; /* rb node located in rb-tree */
355 struct list_head list; /* node in global extent list of sbi */
356 struct extent_info ei; /* extent info */
217}
218
219/*
220 * ioctl commands
221 */
222#define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
223#define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
224#define F2FS_IOC_GETVERSION FS_IOC_GETVERSION

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349 u32 blk; /* start block address of the extent */
350 unsigned int len; /* length of the extent */
351};
352
353struct extent_node {
354 struct rb_node rb_node; /* rb node located in rb-tree */
355 struct list_head list; /* node in global extent list of sbi */
356 struct extent_info ei; /* extent info */
357 struct extent_tree *et; /* extent tree pointer */
357};
358
359struct extent_tree {
360 nid_t ino; /* inode number */
361 struct rb_root root; /* root of extent info rb-tree */
362 struct extent_node *cached_en; /* recently accessed extent node */
363 struct extent_info largest; /* largested extent info */
364 struct list_head list; /* to be used by sbi->zombie_list */

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377#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
378 F2FS_MAP_UNWRITTEN)
379
380struct f2fs_map_blocks {
381 block_t m_pblk;
382 block_t m_lblk;
383 unsigned int m_len;
384 unsigned int m_flags;
358};
359
360struct extent_tree {
361 nid_t ino; /* inode number */
362 struct rb_root root; /* root of extent info rb-tree */
363 struct extent_node *cached_en; /* recently accessed extent node */
364 struct extent_info largest; /* largested extent info */
365 struct list_head list; /* to be used by sbi->zombie_list */

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378#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
379 F2FS_MAP_UNWRITTEN)
380
381struct f2fs_map_blocks {
382 block_t m_pblk;
383 block_t m_lblk;
384 unsigned int m_len;
385 unsigned int m_flags;
386 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
385};
386
387/* for flag in get_data_block */
388#define F2FS_GET_BLOCK_READ 0
389#define F2FS_GET_BLOCK_DIO 1
390#define F2FS_GET_BLOCK_FIEMAP 2
391#define F2FS_GET_BLOCK_BMAP 3
387};
388
389/* for flag in get_data_block */
390#define F2FS_GET_BLOCK_READ 0
391#define F2FS_GET_BLOCK_DIO 1
392#define F2FS_GET_BLOCK_FIEMAP 2
393#define F2FS_GET_BLOCK_BMAP 3
394#define F2FS_GET_BLOCK_PRE_DIO 4
395#define F2FS_GET_BLOCK_PRE_AIO 5
392
393/*
394 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
395 */
396#define FADVISE_COLD_BIT 0x01
397#define FADVISE_LOST_PINO_BIT 0x02
398#define FADVISE_ENCRYPT_BIT 0x04
399#define FADVISE_ENC_NAME_BIT 0x08

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510
511struct f2fs_nm_info {
512 block_t nat_blkaddr; /* base disk address of NAT */
513 nid_t max_nid; /* maximum possible node ids */
514 nid_t available_nids; /* maximum available node ids */
515 nid_t next_scan_nid; /* the next nid to be scanned */
516 unsigned int ram_thresh; /* control the memory footprint */
517 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
396
397/*
398 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
399 */
400#define FADVISE_COLD_BIT 0x01
401#define FADVISE_LOST_PINO_BIT 0x02
402#define FADVISE_ENCRYPT_BIT 0x04
403#define FADVISE_ENC_NAME_BIT 0x08

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514
515struct f2fs_nm_info {
516 block_t nat_blkaddr; /* base disk address of NAT */
517 nid_t max_nid; /* maximum possible node ids */
518 nid_t available_nids; /* maximum available node ids */
519 nid_t next_scan_nid; /* the next nid to be scanned */
520 unsigned int ram_thresh; /* control the memory footprint */
521 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
522 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
518
519 /* NAT cache management */
520 struct radix_tree_root nat_root;/* root of the nat entry cache */
521 struct radix_tree_root nat_set_root;/* root of the nat set cache */
522 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
523 struct list_head nat_entries; /* cached nat entry list (clean) */
524 unsigned int nat_cnt; /* the # of cached nat entries */
525 unsigned int dirty_nat_cnt; /* total num of nat entries in set */

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544struct dnode_of_data {
545 struct inode *inode; /* vfs inode pointer */
546 struct page *inode_page; /* its inode page, NULL is possible */
547 struct page *node_page; /* cached direct node page */
548 nid_t nid; /* node id of the direct node block */
549 unsigned int ofs_in_node; /* data offset in the node page */
550 bool inode_page_locked; /* inode page is locked or not */
551 bool node_changed; /* is node block changed */
523
524 /* NAT cache management */
525 struct radix_tree_root nat_root;/* root of the nat entry cache */
526 struct radix_tree_root nat_set_root;/* root of the nat set cache */
527 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
528 struct list_head nat_entries; /* cached nat entry list (clean) */
529 unsigned int nat_cnt; /* the # of cached nat entries */
530 unsigned int dirty_nat_cnt; /* total num of nat entries in set */

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549struct dnode_of_data {
550 struct inode *inode; /* vfs inode pointer */
551 struct page *inode_page; /* its inode page, NULL is possible */
552 struct page *node_page; /* cached direct node page */
553 nid_t nid; /* node id of the direct node block */
554 unsigned int ofs_in_node; /* data offset in the node page */
555 bool inode_page_locked; /* inode page is locked or not */
556 bool node_changed; /* is node block changed */
557 char cur_level; /* level of hole node page */
558 char max_level; /* level of current page located */
552 block_t data_blkaddr; /* block address of the node block */
553};
554
555static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
556 struct page *ipage, struct page *npage, nid_t nid)
557{
558 memset(dn, 0, sizeof(*dn));
559 dn->inode = inode;

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674enum page_type {
675 DATA,
676 NODE,
677 META,
678 NR_PAGE_TYPE,
679 META_FLUSH,
680 INMEM, /* the below types are used by tracepoints only. */
681 INMEM_DROP,
559 block_t data_blkaddr; /* block address of the node block */
560};
561
562static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
563 struct page *ipage, struct page *npage, nid_t nid)
564{
565 memset(dn, 0, sizeof(*dn));
566 dn->inode = inode;

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681enum page_type {
682 DATA,
683 NODE,
684 META,
685 NR_PAGE_TYPE,
686 META_FLUSH,
687 INMEM, /* the below types are used by tracepoints only. */
688 INMEM_DROP,
689 INMEM_REVOKE,
682 IPU,
683 OPU,
684};
685
686struct f2fs_io_info {
687 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
688 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
689 int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */
690 IPU,
691 OPU,
692};
693
694struct f2fs_io_info {
695 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
696 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
697 int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */
690 block_t blk_addr; /* block address to be written */
698 block_t new_blkaddr; /* new block address to be written */
699 block_t old_blkaddr; /* old block address before Cow */
691 struct page *page; /* page to be written */
692 struct page *encrypted_page; /* encrypted page */
693};
694
695#define is_read_io(rw) (((rw) & 1) == READ)
696struct f2fs_bio_info {
697 struct f2fs_sb_info *sbi; /* f2fs superblock */
698 struct bio *bio; /* bios to merge */

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839 /* For sysfs suppport */
840 struct kobject s_kobj;
841 struct completion s_kobj_unregister;
842
843 /* For shrinker support */
844 struct list_head s_list;
845 struct mutex umount_mutex;
846 unsigned int shrinker_run_no;
700 struct page *page; /* page to be written */
701 struct page *encrypted_page; /* encrypted page */
702};
703
704#define is_read_io(rw) (((rw) & 1) == READ)
705struct f2fs_bio_info {
706 struct f2fs_sb_info *sbi; /* f2fs superblock */
707 struct bio *bio; /* bios to merge */

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848 /* For sysfs suppport */
849 struct kobject s_kobj;
850 struct completion s_kobj_unregister;
851
852 /* For shrinker support */
853 struct list_head s_list;
854 struct mutex umount_mutex;
855 unsigned int shrinker_run_no;
856
857 /* For write statistics */
858 u64 sectors_written_start;
859 u64 kbytes_written;
847};
848
860};
861
862/* For write statistics. Suppose sector size is 512 bytes,
863 * and the return value is in kbytes. s is of struct f2fs_sb_info.
864 */
865#define BD_PART_WRITTEN(s) \
866(((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
867 s->sectors_written_start) >> 1)
868
849static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
850{
851 sbi->last_time[type] = jiffies;
852}
853
854static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
855{
856 struct timespec ts = {sbi->interval_time[type], 0};

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1520 ri->i_inline |= F2FS_INLINE_DOTS;
1521}
1522
1523static inline int f2fs_has_inline_xattr(struct inode *inode)
1524{
1525 return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR);
1526}
1527
869static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
870{
871 sbi->last_time[type] = jiffies;
872}
873
874static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
875{
876 struct timespec ts = {sbi->interval_time[type], 0};

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1540 ri->i_inline |= F2FS_INLINE_DOTS;
1541}
1542
1543static inline int f2fs_has_inline_xattr(struct inode *inode)
1544{
1545 return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR);
1546}
1547
1528static inline unsigned int addrs_per_inode(struct f2fs_inode_info *fi)
1548static inline unsigned int addrs_per_inode(struct inode *inode)
1529{
1549{
1530 if (f2fs_has_inline_xattr(&fi->vfs_inode))
1550 if (f2fs_has_inline_xattr(inode))
1531 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1532 return DEF_ADDRS_PER_INODE;
1533}
1534
1535static inline void *inline_xattr_addr(struct page *page)
1536{
1537 struct f2fs_inode *ri = F2FS_INODE(page);
1538 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -

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1676 return ret;
1677}
1678
1679#define get_inode_mode(i) \
1680 ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \
1681 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
1682
1683/* get offset of first page in next direct node */
1551 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1552 return DEF_ADDRS_PER_INODE;
1553}
1554
1555static inline void *inline_xattr_addr(struct page *page)
1556{
1557 struct f2fs_inode *ri = F2FS_INODE(page);
1558 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -

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1696 return ret;
1697}
1698
1699#define get_inode_mode(i) \
1700 ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \
1701 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
1702
1703/* get offset of first page in next direct node */
1684#define PGOFS_OF_NEXT_DNODE(pgofs, fi) \
1685 ((pgofs < ADDRS_PER_INODE(fi)) ? ADDRS_PER_INODE(fi) : \
1686 (pgofs - ADDRS_PER_INODE(fi) + ADDRS_PER_BLOCK) / \
1687 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(fi))
1704#define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
1705 ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
1706 (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
1707 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
1688
1689/*
1690 * file.c
1691 */
1692int f2fs_sync_file(struct file *, loff_t, loff_t, int);
1693void truncate_data_blocks(struct dnode_of_data *);
1694int truncate_blocks(struct inode *, u64, bool);
1695int f2fs_truncate(struct inode *, bool);

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1758
1759/*
1760 * super.c
1761 */
1762int f2fs_commit_super(struct f2fs_sb_info *, bool);
1763int f2fs_sync_fs(struct super_block *, int);
1764extern __printf(3, 4)
1765void f2fs_msg(struct super_block *, const char *, const char *, ...);
1708
1709/*
1710 * file.c
1711 */
1712int f2fs_sync_file(struct file *, loff_t, loff_t, int);
1713void truncate_data_blocks(struct dnode_of_data *);
1714int truncate_blocks(struct inode *, u64, bool);
1715int f2fs_truncate(struct inode *, bool);

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1778
1779/*
1780 * super.c
1781 */
1782int f2fs_commit_super(struct f2fs_sb_info *, bool);
1783int f2fs_sync_fs(struct super_block *, int);
1784extern __printf(3, 4)
1785void f2fs_msg(struct super_block *, const char *, const char *, ...);
1786int sanity_check_ckpt(struct f2fs_sb_info *sbi);
1766
1767/*
1768 * hash.c
1769 */
1770f2fs_hash_t f2fs_dentry_hash(const struct qstr *);
1771
1772/*
1773 * node.c
1774 */
1775struct dnode_of_data;
1776struct node_info;
1777
1778bool available_free_memory(struct f2fs_sb_info *, int);
1779int need_dentry_mark(struct f2fs_sb_info *, nid_t);
1780bool is_checkpointed_node(struct f2fs_sb_info *, nid_t);
1781bool need_inode_block_update(struct f2fs_sb_info *, nid_t);
1782void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
1787
1788/*
1789 * hash.c
1790 */
1791f2fs_hash_t f2fs_dentry_hash(const struct qstr *);
1792
1793/*
1794 * node.c
1795 */
1796struct dnode_of_data;
1797struct node_info;
1798
1799bool available_free_memory(struct f2fs_sb_info *, int);
1800int need_dentry_mark(struct f2fs_sb_info *, nid_t);
1801bool is_checkpointed_node(struct f2fs_sb_info *, nid_t);
1802bool need_inode_block_update(struct f2fs_sb_info *, nid_t);
1803void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
1804pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t);
1783int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
1784int truncate_inode_blocks(struct inode *, pgoff_t);
1785int truncate_xattr_node(struct inode *, struct page *);
1786int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t);
1787int remove_inode_page(struct inode *);
1788struct page *new_inode_page(struct inode *);
1789struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *);
1790void ra_node_page(struct f2fs_sb_info *, nid_t);

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1806void destroy_node_manager(struct f2fs_sb_info *);
1807int __init create_node_manager_caches(void);
1808void destroy_node_manager_caches(void);
1809
1810/*
1811 * segment.c
1812 */
1813void register_inmem_page(struct inode *, struct page *);
1805int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
1806int truncate_inode_blocks(struct inode *, pgoff_t);
1807int truncate_xattr_node(struct inode *, struct page *);
1808int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t);
1809int remove_inode_page(struct inode *);
1810struct page *new_inode_page(struct inode *);
1811struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *);
1812void ra_node_page(struct f2fs_sb_info *, nid_t);

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1828void destroy_node_manager(struct f2fs_sb_info *);
1829int __init create_node_manager_caches(void);
1830void destroy_node_manager_caches(void);
1831
1832/*
1833 * segment.c
1834 */
1835void register_inmem_page(struct inode *, struct page *);
1814int commit_inmem_pages(struct inode *, bool);
1836void drop_inmem_pages(struct inode *);
1837int commit_inmem_pages(struct inode *);
1815void f2fs_balance_fs(struct f2fs_sb_info *, bool);
1816void f2fs_balance_fs_bg(struct f2fs_sb_info *);
1817int f2fs_issue_flush(struct f2fs_sb_info *);
1818int create_flush_cmd_control(struct f2fs_sb_info *);
1819void destroy_flush_cmd_control(struct f2fs_sb_info *);
1820void invalidate_blocks(struct f2fs_sb_info *, block_t);
1821bool is_checkpointed_data(struct f2fs_sb_info *, block_t);
1822void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t);

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1827void allocate_new_segments(struct f2fs_sb_info *);
1828int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *);
1829struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);
1830void update_meta_page(struct f2fs_sb_info *, void *, block_t);
1831void write_meta_page(struct f2fs_sb_info *, struct page *);
1832void write_node_page(unsigned int, struct f2fs_io_info *);
1833void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);
1834void rewrite_data_page(struct f2fs_io_info *);
1838void f2fs_balance_fs(struct f2fs_sb_info *, bool);
1839void f2fs_balance_fs_bg(struct f2fs_sb_info *);
1840int f2fs_issue_flush(struct f2fs_sb_info *);
1841int create_flush_cmd_control(struct f2fs_sb_info *);
1842void destroy_flush_cmd_control(struct f2fs_sb_info *);
1843void invalidate_blocks(struct f2fs_sb_info *, block_t);
1844bool is_checkpointed_data(struct f2fs_sb_info *, block_t);
1845void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t);

--- 4 unchanged lines hidden (view full) ---

1850void allocate_new_segments(struct f2fs_sb_info *);
1851int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *);
1852struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);
1853void update_meta_page(struct f2fs_sb_info *, void *, block_t);
1854void write_meta_page(struct f2fs_sb_info *, struct page *);
1855void write_node_page(unsigned int, struct f2fs_io_info *);
1856void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);
1857void rewrite_data_page(struct f2fs_io_info *);
1858void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *,
1859 block_t, block_t, bool, bool);
1835void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *,
1860void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *,
1836 block_t, block_t, unsigned char, bool);
1861 block_t, block_t, unsigned char, bool, bool);
1837void allocate_data_block(struct f2fs_sb_info *, struct page *,
1838 block_t, block_t *, struct f2fs_summary *, int);
1862void allocate_data_block(struct f2fs_sb_info *, struct page *,
1863 block_t, block_t *, struct f2fs_summary *, int);
1839void f2fs_wait_on_page_writeback(struct page *, enum page_type);
1864void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool);
1840void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t);
1841void write_data_summaries(struct f2fs_sb_info *, block_t);
1842void write_node_summaries(struct f2fs_sb_info *, block_t);
1865void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t);
1866void write_data_summaries(struct f2fs_sb_info *, block_t);
1867void write_node_summaries(struct f2fs_sb_info *, block_t);
1843int lookup_journal_in_cursum(struct f2fs_summary_block *,
1844 int, unsigned int, int);
1868int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int);
1845void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *);
1846int build_segment_manager(struct f2fs_sb_info *);
1847void destroy_segment_manager(struct f2fs_sb_info *);
1848int __init create_segment_manager_caches(void);
1849void destroy_segment_manager_caches(void);
1850
1851/*
1852 * checkpoint.c

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1876void init_ino_entry_info(struct f2fs_sb_info *);
1877int __init create_checkpoint_caches(void);
1878void destroy_checkpoint_caches(void);
1879
1880/*
1881 * data.c
1882 */
1883void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int);
1869void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *);
1870int build_segment_manager(struct f2fs_sb_info *);
1871void destroy_segment_manager(struct f2fs_sb_info *);
1872int __init create_segment_manager_caches(void);
1873void destroy_segment_manager_caches(void);
1874
1875/*
1876 * checkpoint.c

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1900void init_ino_entry_info(struct f2fs_sb_info *);
1901int __init create_checkpoint_caches(void);
1902void destroy_checkpoint_caches(void);
1903
1904/*
1905 * data.c
1906 */
1907void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int);
1908void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *,
1909 struct page *, nid_t, enum page_type, int);
1884int f2fs_submit_page_bio(struct f2fs_io_info *);
1885void f2fs_submit_page_mbio(struct f2fs_io_info *);
1886void set_data_blkaddr(struct dnode_of_data *);
1887int reserve_new_block(struct dnode_of_data *);
1888int f2fs_get_block(struct dnode_of_data *, pgoff_t);
1910int f2fs_submit_page_bio(struct f2fs_io_info *);
1911void f2fs_submit_page_mbio(struct f2fs_io_info *);
1912void set_data_blkaddr(struct dnode_of_data *);
1913int reserve_new_block(struct dnode_of_data *);
1914int f2fs_get_block(struct dnode_of_data *, pgoff_t);
1915ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *);
1889int f2fs_reserve_block(struct dnode_of_data *, pgoff_t);
1890struct page *get_read_data_page(struct inode *, pgoff_t, int, bool);
1891struct page *find_data_page(struct inode *, pgoff_t);
1892struct page *get_lock_data_page(struct inode *, pgoff_t, bool);
1893struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
1894int do_write_data_page(struct f2fs_io_info *);
1895int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int);
1896int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
1897void f2fs_invalidate_page(struct page *, unsigned int, unsigned int);
1898int f2fs_release_page(struct page *, gfp_t);
1899
1900/*
1901 * gc.c
1902 */
1903int start_gc_thread(struct f2fs_sb_info *);
1904void stop_gc_thread(struct f2fs_sb_info *);
1916int f2fs_reserve_block(struct dnode_of_data *, pgoff_t);
1917struct page *get_read_data_page(struct inode *, pgoff_t, int, bool);
1918struct page *find_data_page(struct inode *, pgoff_t);
1919struct page *get_lock_data_page(struct inode *, pgoff_t, bool);
1920struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
1921int do_write_data_page(struct f2fs_io_info *);
1922int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int);
1923int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
1924void f2fs_invalidate_page(struct page *, unsigned int, unsigned int);
1925int f2fs_release_page(struct page *, gfp_t);
1926
1927/*
1928 * gc.c
1929 */
1930int start_gc_thread(struct f2fs_sb_info *);
1931void stop_gc_thread(struct f2fs_sb_info *);
1905block_t start_bidx_of_node(unsigned int, struct f2fs_inode_info *);
1932block_t start_bidx_of_node(unsigned int, struct inode *);
1906int f2fs_gc(struct f2fs_sb_info *, bool);
1907void build_gc_manager(struct f2fs_sb_info *);
1908
1909/*
1910 * recovery.c
1911 */
1912int recover_fsync_data(struct f2fs_sb_info *);
1913bool space_for_roll_forward(struct f2fs_sb_info *);

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2186
2187/* crypt.c */
2188extern struct kmem_cache *f2fs_crypt_info_cachep;
2189bool f2fs_valid_contents_enc_mode(uint32_t);
2190uint32_t f2fs_validate_encryption_key_size(uint32_t, uint32_t);
2191struct f2fs_crypto_ctx *f2fs_get_crypto_ctx(struct inode *);
2192void f2fs_release_crypto_ctx(struct f2fs_crypto_ctx *);
2193struct page *f2fs_encrypt(struct inode *, struct page *);
1933int f2fs_gc(struct f2fs_sb_info *, bool);
1934void build_gc_manager(struct f2fs_sb_info *);
1935
1936/*
1937 * recovery.c
1938 */
1939int recover_fsync_data(struct f2fs_sb_info *);
1940bool space_for_roll_forward(struct f2fs_sb_info *);

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2213
2214/* crypt.c */
2215extern struct kmem_cache *f2fs_crypt_info_cachep;
2216bool f2fs_valid_contents_enc_mode(uint32_t);
2217uint32_t f2fs_validate_encryption_key_size(uint32_t, uint32_t);
2218struct f2fs_crypto_ctx *f2fs_get_crypto_ctx(struct inode *);
2219void f2fs_release_crypto_ctx(struct f2fs_crypto_ctx *);
2220struct page *f2fs_encrypt(struct inode *, struct page *);
2194int f2fs_decrypt(struct f2fs_crypto_ctx *, struct page *);
2195int f2fs_decrypt_one(struct inode *, struct page *);
2221int f2fs_decrypt(struct page *);
2196void f2fs_end_io_crypto_work(struct f2fs_crypto_ctx *, struct bio *);
2197
2198/* crypto_key.c */
2199void f2fs_free_encryption_info(struct inode *, struct f2fs_crypt_info *);
2200int _f2fs_get_encryption_info(struct inode *inode);
2201
2202/* crypto_fname.c */
2203bool f2fs_valid_filenames_enc_mode(uint32_t);
2204u32 f2fs_fname_crypto_round_up(u32, u32);
2222void f2fs_end_io_crypto_work(struct f2fs_crypto_ctx *, struct bio *);
2223
2224/* crypto_key.c */
2225void f2fs_free_encryption_info(struct inode *, struct f2fs_crypt_info *);
2226int _f2fs_get_encryption_info(struct inode *inode);
2227
2228/* crypto_fname.c */
2229bool f2fs_valid_filenames_enc_mode(uint32_t);
2230u32 f2fs_fname_crypto_round_up(u32, u32);
2231unsigned f2fs_fname_encrypted_size(struct inode *, u32);
2205int f2fs_fname_crypto_alloc_buffer(struct inode *, u32, struct f2fs_str *);
2206int f2fs_fname_disk_to_usr(struct inode *, f2fs_hash_t *,
2207 const struct f2fs_str *, struct f2fs_str *);
2208int f2fs_fname_usr_to_disk(struct inode *, const struct qstr *,
2209 struct f2fs_str *);
2210
2211#ifdef CONFIG_F2FS_FS_ENCRYPTION
2212void f2fs_restore_and_release_control_page(struct page **);

--- 50 unchanged lines hidden --- 		2232int f2fs_fname_crypto_alloc_buffer(struct inode *, u32, struct f2fs_str *);
2233int f2fs_fname_disk_to_usr(struct inode *, f2fs_hash_t *,
2234 const struct f2fs_str *, struct f2fs_str *);
2235int f2fs_fname_usr_to_disk(struct inode *, const struct qstr *,
2236 struct f2fs_str *);
2237
2238#ifdef CONFIG_F2FS_FS_ENCRYPTION
2239void f2fs_restore_and_release_control_page(struct page **);

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