f2fs.h (e8240f656d4d5d718ce8cf6b4ea266d6719ef547) f2fs.h (c227f912732f204c0ec4a577ba812401ac4672af)
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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643 * COUNT_TYPE for monitoring
644 *
645 * f2fs monitors the number of several block types such as on-writeback,
646 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
647 */
648enum count_type {
649 F2FS_WRITEBACK,
650 F2FS_DIRTY_DENTS,
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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643 * COUNT_TYPE for monitoring
644 *
645 * f2fs monitors the number of several block types such as on-writeback,
646 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
647 */
648enum count_type {
649 F2FS_WRITEBACK,
650 F2FS_DIRTY_DENTS,
651 F2FS_DIRTY_DATA,
651 F2FS_DIRTY_NODES,
652 F2FS_DIRTY_META,
653 F2FS_INMEM_PAGES,
654 NR_COUNT_TYPE,
655};
656
657/*
658 * The below are the page types of bios used in submit_bio().

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691struct f2fs_bio_info {
692 struct f2fs_sb_info *sbi; /* f2fs superblock */
693 struct bio *bio; /* bios to merge */
694 sector_t last_block_in_bio; /* last block number */
695 struct f2fs_io_info fio; /* store buffered io info. */
696 struct rw_semaphore io_rwsem; /* blocking op for bio */
697};
698
652 F2FS_DIRTY_NODES,
653 F2FS_DIRTY_META,
654 F2FS_INMEM_PAGES,
655 NR_COUNT_TYPE,
656};
657
658/*
659 * The below are the page types of bios used in submit_bio().

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692struct f2fs_bio_info {
693 struct f2fs_sb_info *sbi; /* f2fs superblock */
694 struct bio *bio; /* bios to merge */
695 sector_t last_block_in_bio; /* last block number */
696 struct f2fs_io_info fio; /* store buffered io info. */
697 struct rw_semaphore io_rwsem; /* blocking op for bio */
698};
699
700enum inode_type {
701 DIR_INODE, /* for dirty dir inode */
702 FILE_INODE, /* for dirty regular/symlink inode */
703 NR_INODE_TYPE,
704};
705
699/* for inner inode cache management */
700struct inode_management {
701 struct radix_tree_root ino_root; /* ino entry array */
702 spinlock_t ino_lock; /* for ino entry lock */
703 struct list_head ino_list; /* inode list head */
704 unsigned long ino_num; /* number of entries */
705};
706

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740 wait_queue_head_t cp_wait;
741 long cp_expires, cp_interval; /* next expected periodic cp */
742
743 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
744
745 /* for orphan inode, use 0'th array */
746 unsigned int max_orphans; /* max orphan inodes */
747
706/* for inner inode cache management */
707struct inode_management {
708 struct radix_tree_root ino_root; /* ino entry array */
709 spinlock_t ino_lock; /* for ino entry lock */
710 struct list_head ino_list; /* inode list head */
711 unsigned long ino_num; /* number of entries */
712};
713

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747 wait_queue_head_t cp_wait;
748 long cp_expires, cp_interval; /* next expected periodic cp */
749
750 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
751
752 /* for orphan inode, use 0'th array */
753 unsigned int max_orphans; /* max orphan inodes */
754
748 /* for directory inode management */
749 struct list_head dir_inode_list; /* dir inode list */
750 spinlock_t dir_inode_lock; /* for dir inode list lock */
755 /* for inode management */
756 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
757 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
751
752 /* for extent tree cache */
753 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
754 struct rw_semaphore extent_tree_lock; /* locking extent radix tree */
755 struct list_head extent_list; /* lru list for shrinker */
756 spinlock_t extent_lock; /* locking extent lru list */
757 int total_ext_tree; /* extent tree count */
758 atomic_t total_ext_node; /* extent info count */

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1055{
1056 atomic_inc(&sbi->nr_pages[count_type]);
1057 set_sbi_flag(sbi, SBI_IS_DIRTY);
1058}
1059
1060static inline void inode_inc_dirty_pages(struct inode *inode)
1061{
1062 atomic_inc(&F2FS_I(inode)->dirty_pages);
758
759 /* for extent tree cache */
760 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
761 struct rw_semaphore extent_tree_lock; /* locking extent radix tree */
762 struct list_head extent_list; /* lru list for shrinker */
763 spinlock_t extent_lock; /* locking extent lru list */
764 int total_ext_tree; /* extent tree count */
765 atomic_t total_ext_node; /* extent info count */

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1062{
1063 atomic_inc(&sbi->nr_pages[count_type]);
1064 set_sbi_flag(sbi, SBI_IS_DIRTY);
1065}
1066
1067static inline void inode_inc_dirty_pages(struct inode *inode)
1068{
1069 atomic_inc(&F2FS_I(inode)->dirty_pages);
1063 if (S_ISDIR(inode->i_mode))
1064 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS);
1070 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1071 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1065}
1066
1067static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1068{
1069 atomic_dec(&sbi->nr_pages[count_type]);
1070}
1071
1072static inline void inode_dec_dirty_pages(struct inode *inode)
1073{
1074 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1075 !S_ISLNK(inode->i_mode))
1076 return;
1077
1078 atomic_dec(&F2FS_I(inode)->dirty_pages);
1072}
1073
1074static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1075{
1076 atomic_dec(&sbi->nr_pages[count_type]);
1077}
1078
1079static inline void inode_dec_dirty_pages(struct inode *inode)
1080{
1081 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1082 !S_ISLNK(inode->i_mode))
1083 return;
1084
1085 atomic_dec(&F2FS_I(inode)->dirty_pages);
1079
1080 if (S_ISDIR(inode->i_mode))
1081 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS);
1086 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1087 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1082}
1083
1084static inline int get_pages(struct f2fs_sb_info *sbi, int count_type)
1085{
1086 return atomic_read(&sbi->nr_pages[count_type]);
1087}
1088
1089static inline int get_dirty_pages(struct inode *inode)

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1412 FI_NEED_IPU, /* used for ipu per file */
1413 FI_ATOMIC_FILE, /* indicate atomic file */
1414 FI_VOLATILE_FILE, /* indicate volatile file */
1415 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
1416 FI_DROP_CACHE, /* drop dirty page cache */
1417 FI_DATA_EXIST, /* indicate data exists */
1418 FI_INLINE_DOTS, /* indicate inline dot dentries */
1419 FI_DO_DEFRAG, /* indicate defragment is running */
1088}
1089
1090static inline int get_pages(struct f2fs_sb_info *sbi, int count_type)
1091{
1092 return atomic_read(&sbi->nr_pages[count_type]);
1093}
1094
1095static inline int get_dirty_pages(struct inode *inode)

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1418 FI_NEED_IPU, /* used for ipu per file */
1419 FI_ATOMIC_FILE, /* indicate atomic file */
1420 FI_VOLATILE_FILE, /* indicate volatile file */
1421 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
1422 FI_DROP_CACHE, /* drop dirty page cache */
1423 FI_DATA_EXIST, /* indicate data exists */
1424 FI_INLINE_DOTS, /* indicate inline dot dentries */
1425 FI_DO_DEFRAG, /* indicate defragment is running */
1426 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
1420};
1421
1422static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag)
1423{
1424 if (!test_bit(flag, &fi->flags))
1425 set_bit(flag, &fi->flags);
1426}
1427

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1821int acquire_orphan_inode(struct f2fs_sb_info *);
1822void release_orphan_inode(struct f2fs_sb_info *);
1823void add_orphan_inode(struct f2fs_sb_info *, nid_t);
1824void remove_orphan_inode(struct f2fs_sb_info *, nid_t);
1825int recover_orphan_inodes(struct f2fs_sb_info *);
1826int get_valid_checkpoint(struct f2fs_sb_info *);
1827void update_dirty_page(struct inode *, struct page *);
1828void add_dirty_dir_inode(struct inode *);
1427};
1428
1429static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag)
1430{
1431 if (!test_bit(flag, &fi->flags))
1432 set_bit(flag, &fi->flags);
1433}
1434

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1828int acquire_orphan_inode(struct f2fs_sb_info *);
1829void release_orphan_inode(struct f2fs_sb_info *);
1830void add_orphan_inode(struct f2fs_sb_info *, nid_t);
1831void remove_orphan_inode(struct f2fs_sb_info *, nid_t);
1832int recover_orphan_inodes(struct f2fs_sb_info *);
1833int get_valid_checkpoint(struct f2fs_sb_info *);
1834void update_dirty_page(struct inode *, struct page *);
1835void add_dirty_dir_inode(struct inode *);
1829void remove_dirty_dir_inode(struct inode *);
1830void sync_dirty_dir_inodes(struct f2fs_sb_info *);
1836void remove_dirty_inode(struct inode *);
1837void sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type);
1831void write_checkpoint(struct f2fs_sb_info *, struct cp_control *);
1832void init_ino_entry_info(struct f2fs_sb_info *);
1833int __init create_checkpoint_caches(void);
1834void destroy_checkpoint_caches(void);
1835
1836/*
1837 * data.c
1838 */

--- 377 unchanged lines hidden --- 		1838void write_checkpoint(struct f2fs_sb_info *, struct cp_control *);
1839void init_ino_entry_info(struct f2fs_sb_info *);
1840int __init create_checkpoint_caches(void);
1841void destroy_checkpoint_caches(void);
1842
1843/*
1844 * data.c
1845 */

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