diff options
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1008 |
1 files changed, 644 insertions, 364 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 9db5500d63d9..af293e84e5cd 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -21,10 +21,12 @@ #include <linux/sched.h> #include <linux/vmalloc.h> #include <linux/bio.h> +#include <linux/blkdev.h> +#include <linux/fscrypto.h> +#include <crypto/hash.h> #ifdef CONFIG_F2FS_CHECK_FS #define f2fs_bug_on(sbi, condition) BUG_ON(condition) -#define f2fs_down_write(x, y) down_write_nest_lock(x, y) #else #define f2fs_bug_on(sbi, condition) \ do { \ @@ -33,7 +35,30 @@ set_sbi_flag(sbi, SBI_NEED_FSCK); \ } \ } while (0) -#define f2fs_down_write(x, y) down_write(x) +#endif + +#ifdef CONFIG_F2FS_FAULT_INJECTION +enum { + FAULT_KMALLOC, + FAULT_PAGE_ALLOC, + FAULT_ALLOC_NID, + FAULT_ORPHAN, + FAULT_BLOCK, + FAULT_DIR_DEPTH, + FAULT_EVICT_INODE, + FAULT_IO, + FAULT_CHECKPOINT, + FAULT_MAX, +}; + +struct f2fs_fault_info { + atomic_t inject_ops; + unsigned int inject_rate; + unsigned int inject_type; +}; + +extern char *fault_name[FAULT_MAX]; +#define IS_FAULT_SET(fi, type) (fi->inject_type & (1 << (type))) #endif /* @@ -54,6 +79,10 @@ #define F2FS_MOUNT_FASTBOOT 0x00001000 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 +#define F2FS_MOUNT_DATA_FLUSH 0x00008000 +#define F2FS_MOUNT_FAULT_INJECTION 0x00010000 +#define F2FS_MOUNT_ADAPTIVE 0x00020000 +#define F2FS_MOUNT_LFS 0x00040000 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) @@ -74,6 +103,7 @@ struct f2fs_mount_info { }; #define F2FS_FEATURE_ENCRYPT 0x0001 +#define F2FS_FEATURE_HMSMR 0x0002 #define F2FS_HAS_FEATURE(sb, mask) \ ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) @@ -82,25 +112,30 @@ struct f2fs_mount_info { #define F2FS_CLEAR_FEATURE(sb, mask) \ F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask) -#define CRCPOLY_LE 0xedb88320 - -static inline __u32 f2fs_crc32(void *buf, size_t len) +/** + * wq_has_sleeper - check if there are any waiting processes + * @wq: wait queue head + * + * Returns true if wq has waiting processes + * + * Please refer to the comment for waitqueue_active. + */ +static inline bool wq_has_sleeper(wait_queue_head_t *wq) { - unsigned char *p = (unsigned char *)buf; - __u32 crc = F2FS_SUPER_MAGIC; - int i; - - while (len--) { - crc ^= *p++; - for (i = 0; i < 8; i++) - crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0); - } - return crc; + /* + * We need to be sure we are in sync with the + * add_wait_queue modifications to the wait queue. + * + * This memory barrier should be paired with one on the + * waiting side. + */ + smp_mb(); + return waitqueue_active(wq); } -static inline bool f2fs_crc_valid(__u32 blk_crc, void *buf, size_t buf_size) +static inline void inode_nohighmem(struct inode *inode) { - return f2fs_crc32(buf, buf_size) == blk_crc; + mapping_set_gfp_mask(inode->i_mapping, GFP_USER); } /* @@ -119,12 +154,13 @@ enum { CP_DISCARD, }; -#define DEF_BATCHED_TRIM_SECTIONS 32 +#define DEF_BATCHED_TRIM_SECTIONS 2 #define BATCHED_TRIM_SEGMENTS(sbi) \ (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec) #define BATCHED_TRIM_BLOCKS(sbi) \ (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) #define DEF_CP_INTERVAL 60 /* 60 secs */ +#define DEF_IDLE_INTERVAL 5 /* 5 secs */ struct cp_control { int reason; @@ -158,13 +194,7 @@ struct ino_entry { nid_t ino; /* inode number */ }; -/* - * for the list of directory inodes or gc inodes. - * NOTE: there are two slab users for this structure, if we add/modify/delete - * fields in structure for one of slab users, it may affect fields or size of - * other one, in this condition, it's better to split both of slab and related - * data structure. - */ +/* for the list of inodes to be GCed */ struct inode_entry { struct list_head list; /* list head */ struct inode *inode; /* vfs inode pointer */ @@ -177,46 +207,52 @@ struct discard_entry { int len; /* # of consecutive blocks of the discard */ }; +struct bio_entry { + struct list_head list; + struct bio *bio; + struct completion event; + int error; +}; + /* for the list of fsync inodes, used only during recovery */ struct fsync_inode_entry { struct list_head list; /* list head */ struct inode *inode; /* vfs inode pointer */ block_t blkaddr; /* block address locating the last fsync */ block_t last_dentry; /* block address locating the last dentry */ - block_t last_inode; /* block address locating the last inode */ }; -#define nats_in_cursum(sum) (le16_to_cpu(sum->n_nats)) -#define sits_in_cursum(sum) (le16_to_cpu(sum->n_sits)) +#define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats)) +#define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits)) -#define nat_in_journal(sum, i) (sum->nat_j.entries[i].ne) -#define nid_in_journal(sum, i) (sum->nat_j.entries[i].nid) -#define sit_in_journal(sum, i) (sum->sit_j.entries[i].se) -#define segno_in_journal(sum, i) (sum->sit_j.entries[i].segno) +#define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne) +#define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid) +#define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se) +#define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno) -#define MAX_NAT_JENTRIES(sum) (NAT_JOURNAL_ENTRIES - nats_in_cursum(sum)) -#define MAX_SIT_JENTRIES(sum) (SIT_JOURNAL_ENTRIES - sits_in_cursum(sum)) +#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) +#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) -static inline int update_nats_in_cursum(struct f2fs_summary_block *rs, int i) +static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) { - int before = nats_in_cursum(rs); - rs->n_nats = cpu_to_le16(before + i); + int before = nats_in_cursum(journal); + journal->n_nats = cpu_to_le16(before + i); return before; } -static inline int update_sits_in_cursum(struct f2fs_summary_block *rs, int i) +static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) { - int before = sits_in_cursum(rs); - rs->n_sits = cpu_to_le16(before + i); + int before = sits_in_cursum(journal); + journal->n_sits = cpu_to_le16(before + i); return before; } -static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size, - int type) +static inline bool __has_cursum_space(struct f2fs_journal *journal, + int size, int type) { if (type == NAT_JOURNAL) - return size <= MAX_NAT_JENTRIES(sum); - return size <= MAX_SIT_JENTRIES(sum); + return size <= MAX_NAT_JENTRIES(journal); + return size <= MAX_SIT_JENTRIES(journal); } /* @@ -234,13 +270,13 @@ static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size, #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6) #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) +#define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8) +#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ + struct f2fs_move_range) -#define F2FS_IOC_SET_ENCRYPTION_POLICY \ - _IOR('f', 19, struct f2fs_encryption_policy) -#define F2FS_IOC_GET_ENCRYPTION_PWSALT \ - _IOW('f', 20, __u8[16]) -#define F2FS_IOC_GET_ENCRYPTION_POLICY \ - _IOW('f', 21, struct f2fs_encryption_policy) +#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY +#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY +#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT /* * should be same as XFS_IOC_GOINGDOWN. @@ -256,33 +292,27 @@ static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size, /* * ioctl commands in 32 bit emulation */ -#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS -#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS +#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS +#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS +#define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION #endif -/* - * For INODE and NODE manager - */ -/* for directory operations */ -struct f2fs_str { - unsigned char *name; - u32 len; +struct f2fs_defragment { + u64 start; + u64 len; }; -struct f2fs_filename { - const struct qstr *usr_fname; - struct f2fs_str disk_name; - f2fs_hash_t hash; -#ifdef CONFIG_F2FS_FS_ENCRYPTION - struct f2fs_str crypto_buf; -#endif +struct f2fs_move_range { + u32 dst_fd; /* destination fd */ + u64 pos_in; /* start position in src_fd */ + u64 pos_out; /* start position in dst_fd */ + u64 len; /* size to move */ }; -#define FSTR_INIT(n, l) { .name = n, .len = l } -#define FSTR_TO_QSTR(f) QSTR_INIT((f)->name, (f)->len) -#define fname_name(p) ((p)->disk_name.name) -#define fname_len(p) ((p)->disk_name.len) - +/* + * For INODE and NODE manager + */ +/* for directory operations */ struct f2fs_dentry_ptr { struct inode *inode; const void *bitmap; @@ -350,6 +380,7 @@ struct extent_node { struct rb_node rb_node; /* rb node located in rb-tree */ struct list_head list; /* node in global extent list of sbi */ struct extent_info ei; /* extent info */ + struct extent_tree *et; /* extent tree pointer */ }; struct extent_tree { @@ -357,9 +388,9 @@ struct extent_tree { struct rb_root root; /* root of extent info rb-tree */ struct extent_node *cached_en; /* recently accessed extent node */ struct extent_info largest; /* largested extent info */ + struct list_head list; /* to be used by sbi->zombie_list */ rwlock_t lock; /* protect extent info rb-tree */ - atomic_t refcount; /* reference count of rb-tree */ - unsigned int count; /* # of extent node in rb-tree*/ + atomic_t node_cnt; /* # of extent node in rb-tree*/ }; /* @@ -378,6 +409,7 @@ struct f2fs_map_blocks { block_t m_lblk; unsigned int m_len; unsigned int m_flags; + pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ }; /* for flag in get_data_block */ @@ -385,6 +417,8 @@ struct f2fs_map_blocks { #define F2FS_GET_BLOCK_DIO 1 #define F2FS_GET_BLOCK_FIEMAP 2 #define F2FS_GET_BLOCK_BMAP 3 +#define F2FS_GET_BLOCK_PRE_DIO 4 +#define F2FS_GET_BLOCK_PRE_AIO 5 /* * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. @@ -406,15 +440,6 @@ struct f2fs_map_blocks { #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) -/* Encryption algorithms */ -#define F2FS_ENCRYPTION_MODE_INVALID 0 -#define F2FS_ENCRYPTION_MODE_AES_256_XTS 1 -#define F2FS_ENCRYPTION_MODE_AES_256_GCM 2 -#define F2FS_ENCRYPTION_MODE_AES_256_CBC 3 -#define F2FS_ENCRYPTION_MODE_AES_256_CTS 4 - -#include "f2fs_crypto.h" - #define DEF_DIR_LEVEL 0 struct f2fs_inode_info { @@ -429,30 +454,27 @@ struct f2fs_inode_info { /* Use below internally in f2fs*/ unsigned long flags; /* use to pass per-file flags */ struct rw_semaphore i_sem; /* protect fi info */ - atomic_t dirty_pages; /* # of dirty pages */ + struct percpu_counter dirty_pages; /* # of dirty pages */ f2fs_hash_t chash; /* hash value of given file name */ unsigned int clevel; /* maximum level of given file name */ nid_t i_xattr_nid; /* node id that contains xattrs */ unsigned long long xattr_ver; /* cp version of xattr modification */ - struct inode_entry *dirty_dir; /* the pointer of dirty dir */ + loff_t last_disk_size; /* lastly written file size */ + struct list_head dirty_list; /* dirty list for dirs and files */ + struct list_head gdirty_list; /* linked in global dirty list */ struct list_head inmem_pages; /* inmemory pages managed by f2fs */ struct mutex inmem_lock; /* lock for inmemory pages */ - struct extent_tree *extent_tree; /* cached extent_tree entry */ - -#ifdef CONFIG_F2FS_FS_ENCRYPTION - /* Encryption params */ - struct f2fs_crypt_info *i_crypt_info; -#endif + struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */ }; static inline void get_extent_info(struct extent_info *ext, - struct f2fs_extent i_ext) + struct f2fs_extent *i_ext) { - ext->fofs = le32_to_cpu(i_ext.fofs); - ext->blk = le32_to_cpu(i_ext.blk); - ext->len = le32_to_cpu(i_ext.len); + ext->fofs = le32_to_cpu(i_ext->fofs); + ext->blk = le32_to_cpu(i_ext->blk); + ext->len = le32_to_cpu(i_ext->len); } static inline void set_raw_extent(struct extent_info *ext, @@ -497,11 +519,14 @@ static inline bool __is_front_mergeable(struct extent_info *cur, return __is_extent_mergeable(cur, front); } -static inline void __try_update_largest_extent(struct extent_tree *et, - struct extent_node *en) +extern void f2fs_mark_inode_dirty_sync(struct inode *); +static inline void __try_update_largest_extent(struct inode *inode, + struct extent_tree *et, struct extent_node *en) { - if (en->ei.len > et->largest.len) + if (en->ei.len > et->largest.len) { et->largest = en->ei; + f2fs_mark_inode_dirty_sync(inode); + } } struct f2fs_nm_info { @@ -511,6 +536,7 @@ struct f2fs_nm_info { nid_t next_scan_nid; /* the next nid to be scanned */ unsigned int ram_thresh; /* control the memory footprint */ unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ + unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ /* NAT cache management */ struct radix_tree_root nat_root;/* root of the nat entry cache */ @@ -544,6 +570,9 @@ struct dnode_of_data { nid_t nid; /* node id of the direct node block */ unsigned int ofs_in_node; /* data offset in the node page */ bool inode_page_locked; /* inode page is locked or not */ + bool node_changed; /* is node block changed */ + char cur_level; /* level of hole node page */ + char max_level; /* level of current page located */ block_t data_blkaddr; /* block address of the node block */ }; @@ -594,6 +623,7 @@ struct flush_cmd { struct flush_cmd_control { struct task_struct *f2fs_issue_flush; /* flush thread */ wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ + atomic_t submit_flush; /* # of issued flushes */ struct llist_head issue_list; /* list for command issue */ struct llist_node *dispatch_list; /* list for command dispatch */ }; @@ -618,6 +648,7 @@ struct f2fs_sm_info { /* for small discard management */ struct list_head discard_list; /* 4KB discard list */ + struct list_head wait_list; /* linked with issued discard bio */ int nr_discards; /* # of discards in the list */ int max_discards; /* max. discards to be issued */ @@ -645,11 +676,12 @@ struct f2fs_sm_info { * dirty dentry blocks, dirty node blocks, and dirty meta blocks. */ enum count_type { - F2FS_WRITEBACK, F2FS_DIRTY_DENTS, + F2FS_DIRTY_DATA, F2FS_DIRTY_NODES, F2FS_DIRTY_META, F2FS_INMEM_PAGES, + F2FS_DIRTY_IMETA, NR_COUNT_TYPE, }; @@ -673,6 +705,7 @@ enum page_type { META_FLUSH, INMEM, /* the below types are used by tracepoints only. */ INMEM_DROP, + INMEM_REVOKE, IPU, OPU, }; @@ -681,7 +714,8 @@ struct f2fs_io_info { struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */ - block_t blk_addr; /* block address to be written */ + block_t new_blkaddr; /* new block address to be written */ + block_t old_blkaddr; /* old block address before Cow */ struct page *page; /* page to be written */ struct page *encrypted_page; /* encrypted page */ }; @@ -695,6 +729,13 @@ struct f2fs_bio_info { struct rw_semaphore io_rwsem; /* blocking op for bio */ }; +enum inode_type { + DIR_INODE, /* for dirty dir inode */ + FILE_INODE, /* for dirty regular/symlink inode */ + DIRTY_META, /* for all dirtied inode metadata */ + NR_INODE_TYPE, +}; + /* for inner inode cache management */ struct inode_management { struct radix_tree_root ino_root; /* ino entry array */ @@ -709,15 +750,31 @@ enum { SBI_IS_CLOSE, /* specify unmounting */ SBI_NEED_FSCK, /* need fsck.f2fs to fix */ SBI_POR_DOING, /* recovery is doing or not */ + SBI_NEED_SB_WRITE, /* need to recover superblock */ + SBI_NEED_CP, /* need to checkpoint */ +}; + +enum { + CP_TIME, + REQ_TIME, + MAX_TIME, }; +#ifdef CONFIG_F2FS_FS_ENCRYPTION +#define F2FS_KEY_DESC_PREFIX "f2fs:" +#define F2FS_KEY_DESC_PREFIX_SIZE 5 +#endif struct f2fs_sb_info { struct super_block *sb; /* pointer to VFS super block */ struct proc_dir_entry *s_proc; /* proc entry */ - struct buffer_head *raw_super_buf; /* buffer head of raw sb */ struct f2fs_super_block *raw_super; /* raw super block pointer */ - int s_flag; /* flags for sbi */ + int valid_super_block; /* valid super block no */ + unsigned long s_flag; /* flags for sbi */ +#ifdef CONFIG_F2FS_FS_ENCRYPTION + u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE]; + u8 key_prefix_size; +#endif /* for node-related operations */ struct f2fs_nm_info *nm_info; /* node manager */ struct inode *node_inode; /* cache node blocks */ @@ -728,32 +785,36 @@ struct f2fs_sb_info { /* for bio operations */ struct f2fs_bio_info read_io; /* for read bios */ struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ + struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */ /* for checkpoint */ struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ + spinlock_t cp_lock; /* for flag in ckpt */ struct inode *meta_inode; /* cache meta blocks */ struct mutex cp_mutex; /* checkpoint procedure lock */ struct rw_semaphore cp_rwsem; /* blocking FS operations */ struct rw_semaphore node_write; /* locking node writes */ - struct mutex writepages; /* mutex for writepages() */ wait_queue_head_t cp_wait; - long cp_expires, cp_interval; /* next expected periodic cp */ + unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ + long interval_time[MAX_TIME]; /* to store thresholds */ struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ /* for orphan inode, use 0'th array */ unsigned int max_orphans; /* max orphan inodes */ - /* for directory inode management */ - struct list_head dir_inode_list; /* dir inode list */ - spinlock_t dir_inode_lock; /* for dir inode list lock */ + /* for inode management */ + struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ + spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ /* for extent tree cache */ struct radix_tree_root extent_tree_root;/* cache extent cache entries */ struct rw_semaphore extent_tree_lock; /* locking extent radix tree */ struct list_head extent_list; /* lru list for shrinker */ spinlock_t extent_lock; /* locking extent lru list */ - int total_ext_tree; /* extent tree count */ + atomic_t total_ext_tree; /* extent tree count */ + struct list_head zombie_list; /* extent zombie tree list */ + atomic_t total_zombie_tree; /* extent zombie tree count */ atomic_t total_ext_node; /* extent info count */ /* basic filesystem units */ @@ -770,17 +831,24 @@ struct f2fs_sb_info { unsigned int total_sections; /* total section count */ unsigned int total_node_count; /* total node block count */ unsigned int total_valid_node_count; /* valid node block count */ - unsigned int total_valid_inode_count; /* valid inode count */ + loff_t max_file_blocks; /* max block index of file */ int active_logs; /* # of active logs */ int dir_level; /* directory level */ block_t user_block_count; /* # of user blocks */ block_t total_valid_block_count; /* # of valid blocks */ - block_t alloc_valid_block_count; /* # of allocated blocks */ block_t discard_blks; /* discard command candidats */ block_t last_valid_block_count; /* for recovery */ u32 s_next_generation; /* for NFS support */ - atomic_t nr_pages[NR_COUNT_TYPE]; /* # of pages, see count_type */ + atomic_t nr_wb_bios; /* # of writeback bios */ + + /* # of pages, see count_type */ + struct percpu_counter nr_pages[NR_COUNT_TYPE]; + /* # of allocated blocks */ + struct percpu_counter alloc_valid_block_count; + + /* valid inode count */ + struct percpu_counter total_valid_inode_count; struct f2fs_mount_info mount_opt; /* mount options */ @@ -809,7 +877,7 @@ struct f2fs_sb_info { atomic_t inline_inode; /* # of inline_data inodes */ atomic_t inline_dir; /* # of inline_dentry inodes */ int bg_gc; /* background gc calls */ - unsigned int n_dirty_dirs; /* # of dir inodes */ + unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ #endif unsigned int last_victim[2]; /* last victim segment # */ spinlock_t stat_lock; /* lock for stat operations */ @@ -822,11 +890,102 @@ struct f2fs_sb_info { struct list_head s_list; struct mutex umount_mutex; unsigned int shrinker_run_no; + + /* For write statistics */ + u64 sectors_written_start; + u64 kbytes_written; + + /* Reference to checksum algorithm driver via cryptoapi */ + struct crypto_shash *s_chksum_driver; + + /* For fault injection */ +#ifdef CONFIG_F2FS_FAULT_INJECTION + struct f2fs_fault_info fault_info; +#endif }; +#ifdef CONFIG_F2FS_FAULT_INJECTION +static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) +{ + struct f2fs_fault_info *ffi = &sbi->fault_info; + + if (!ffi->inject_rate) + return false; + + if (!IS_FAULT_SET(ffi, type)) + return false; + + atomic_inc(&ffi->inject_ops); + if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { + atomic_set(&ffi->inject_ops, 0); + printk("%sF2FS-fs : inject %s in %pF\n", + KERN_INFO, + fault_name[type], + __builtin_return_address(0)); + return true; + } + return false; +} +#endif + +/* For write statistics. Suppose sector size is 512 bytes, + * and the return value is in kbytes. s is of struct f2fs_sb_info. + */ +#define BD_PART_WRITTEN(s) \ +(((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \ + s->sectors_written_start) >> 1) + +static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) +{ + sbi->last_time[type] = jiffies; +} + +static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) +{ + struct timespec ts = {sbi->interval_time[type], 0}; + unsigned long interval = timespec_to_jiffies(&ts); + + return time_after(jiffies, sbi->last_time[type] + interval); +} + +static inline bool is_idle(struct f2fs_sb_info *sbi) +{ + struct block_device *bdev = sbi->sb->s_bdev; + struct request_queue *q = bdev_get_queue(bdev); + struct request_list *rl = &q->root_rl; + + if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) + return 0; + + return f2fs_time_over(sbi, REQ_TIME); +} + /* * Inline functions */ +static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, + unsigned int length) +{ + SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); + u32 *ctx = (u32 *)shash_desc_ctx(shash); + int err; + + shash->tfm = sbi->s_chksum_driver; + shash->flags = 0; + *ctx = F2FS_SUPER_MAGIC; + + err = crypto_shash_update(shash, address, length); + BUG_ON(err); + + return *ctx; +} + +static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, + void *buf, size_t buf_size) +{ + return f2fs_crc32(sbi, buf, buf_size) == blk_crc; +} + static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) { return container_of(inode, struct f2fs_inode_info, vfs_inode); @@ -909,17 +1068,17 @@ static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) { - return sbi->s_flag & (0x01 << type); + return test_bit(type, &sbi->s_flag); } static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) { - sbi->s_flag |= (0x01 << type); + set_bit(type, &sbi->s_flag); } static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) { - sbi->s_flag &= ~(0x01 << type); + clear_bit(type, &sbi->s_flag); } static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) @@ -927,26 +1086,57 @@ static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) return le64_to_cpu(cp->checkpoint_ver); } -static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) +static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) { unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); + return ckpt_flags & f; } -static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) +static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) { - unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); + return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); +} + +static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) +{ + unsigned int ckpt_flags; + + ckpt_flags = le32_to_cpu(cp->ckpt_flags); ckpt_flags |= f; cp->ckpt_flags = cpu_to_le32(ckpt_flags); } -static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) +static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) { - unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); + spin_lock(&sbi->cp_lock); + __set_ckpt_flags(F2FS_CKPT(sbi), f); + spin_unlock(&sbi->cp_lock); +} + +static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) +{ + unsigned int ckpt_flags; + + ckpt_flags = le32_to_cpu(cp->ckpt_flags); ckpt_flags &= (~f); cp->ckpt_flags = cpu_to_le32(ckpt_flags); } +static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) +{ + spin_lock(&sbi->cp_lock); + __clear_ckpt_flags(F2FS_CKPT(sbi), f); + spin_unlock(&sbi->cp_lock); +} + +static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi) +{ + struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev); + + return blk_queue_discard(q); +} + static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) { down_read(&sbi->cp_rwsem); @@ -959,7 +1149,7 @@ static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) { - f2fs_down_write(&sbi->cp_rwsem, &sbi->cp_mutex); + down_write(&sbi->cp_rwsem); } static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) @@ -985,8 +1175,8 @@ static inline bool __remain_node_summaries(int reason) static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) { - return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) || - is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG)); + return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || + is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); } /* @@ -1019,22 +1209,37 @@ static inline bool f2fs_has_xattr_block(unsigned int ofs) return ofs == XATTR_NODE_OFFSET; } +static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool); static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, - struct inode *inode, blkcnt_t count) + struct inode *inode, blkcnt_t *count) { - block_t valid_block_count; + blkcnt_t diff; - spin_lock(&sbi->stat_lock); - valid_block_count = - sbi->total_valid_block_count + (block_t)count; - if (unlikely(valid_block_count > sbi->user_block_count)) { - spin_unlock(&sbi->stat_lock); +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(sbi, FAULT_BLOCK)) return false; +#endif + /* + * let's increase this in prior to actual block count change in order + * for f2fs_sync_file to avoid data races when deciding checkpoint. + */ + percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); + + spin_lock(&sbi->stat_lock); + sbi->total_valid_block_count += (block_t)(*count); + if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) { + diff = sbi->total_valid_block_count - sbi->user_block_count; + *count -= diff; + sbi->total_valid_block_count = sbi->user_block_count; + if (!*count) { + spin_unlock(&sbi->stat_lock); + percpu_counter_sub(&sbi->alloc_valid_block_count, diff); + return false; + } } - inode->i_blocks += count; - sbi->total_valid_block_count = valid_block_count; - sbi->alloc_valid_block_count += (block_t)count; spin_unlock(&sbi->stat_lock); + + f2fs_i_blocks_write(inode, *count, true); return true; } @@ -1045,27 +1250,31 @@ static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, spin_lock(&sbi->stat_lock); f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); f2fs_bug_on(sbi, inode->i_blocks < count); - inode->i_blocks -= count; sbi->total_valid_block_count -= (block_t)count; spin_unlock(&sbi->stat_lock); + f2fs_i_blocks_write(inode, count, false); } static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) { - atomic_inc(&sbi->nr_pages[count_type]); + percpu_counter_inc(&sbi->nr_pages[count_type]); + + if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES) + return; + set_sbi_flag(sbi, SBI_IS_DIRTY); } static inline void inode_inc_dirty_pages(struct inode *inode) { - atomic_inc(&F2FS_I(inode)->dirty_pages); - if (S_ISDIR(inode->i_mode)) - inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS); + percpu_counter_inc(&F2FS_I(inode)->dirty_pages); + inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? + F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); } static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) { - atomic_dec(&sbi->nr_pages[count_type]); + percpu_counter_dec(&sbi->nr_pages[count_type]); } static inline void inode_dec_dirty_pages(struct inode *inode) @@ -1074,28 +1283,28 @@ static inline void inode_dec_dirty_pages(struct inode *inode) !S_ISLNK(inode->i_mode)) return; - atomic_dec(&F2FS_I(inode)->dirty_pages); - - if (S_ISDIR(inode->i_mode)) - dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS); + percpu_counter_dec(&F2FS_I(inode)->dirty_pages); + dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? + F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); } -static inline int get_pages(struct f2fs_sb_info *sbi, int count_type) +static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) { - return atomic_read(&sbi->nr_pages[count_type]); + return percpu_counter_sum_positive(&sbi->nr_pages[count_type]); } -static inline int get_dirty_pages(struct inode *inode) +static inline s64 get_dirty_pages(struct inode *inode) { - return atomic_read(&F2FS_I(inode)->dirty_pages); + return percpu_counter_sum_positive(&F2FS_I(inode)->dirty_pages); } static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) { - unsigned int pages_per_sec = sbi->segs_per_sec * - (1 << sbi->log_blocks_per_seg); - return ((get_pages(sbi, block_type) + pages_per_sec - 1) - >> sbi->log_blocks_per_seg) / sbi->segs_per_sec; + unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; + unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> + sbi->log_blocks_per_seg; + + return segs / sbi->segs_per_sec; } static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) @@ -1103,6 +1312,11 @@ static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) return sbi->total_valid_block_count; } +static inline block_t discard_blocks(struct f2fs_sb_info *sbi) +{ + return sbi->discard_blks; +} + static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) { struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); @@ -1182,13 +1396,13 @@ static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, } if (inode) - inode->i_blocks++; + f2fs_i_blocks_write(inode, 1, true); - sbi->alloc_valid_block_count++; sbi->total_valid_node_count++; sbi->total_valid_block_count++; spin_unlock(&sbi->stat_lock); + percpu_counter_inc(&sbi->alloc_valid_block_count); return true; } @@ -1201,7 +1415,7 @@ static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, f2fs_bug_on(sbi, !sbi->total_valid_node_count); f2fs_bug_on(sbi, !inode->i_blocks); - inode->i_blocks--; + f2fs_i_blocks_write(inode, 1, false); sbi->total_valid_node_count--; sbi->total_valid_block_count--; @@ -1215,28 +1429,30 @@ static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) { - spin_lock(&sbi->stat_lock); - f2fs_bug_on(sbi, sbi->total_valid_inode_count == sbi->total_node_count); - sbi->total_valid_inode_count++; - spin_unlock(&sbi->stat_lock); + percpu_counter_inc(&sbi->total_valid_inode_count); } static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) { - spin_lock(&sbi->stat_lock); - f2fs_bug_on(sbi, !sbi->total_valid_inode_count); - sbi->total_valid_inode_count--; - spin_unlock(&sbi->stat_lock); + percpu_counter_dec(&sbi->total_valid_inode_count); } -static inline unsigned int valid_inode_count(struct f2fs_sb_info *sbi) +static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) { - return sbi->total_valid_inode_count; + return percpu_counter_sum_positive(&sbi->total_valid_inode_count); } static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, pgoff_t index, bool for_write) { +#ifdef CONFIG_F2FS_FAULT_INJECTION + struct page *page = find_lock_page(mapping, index); + if (page) + return page; + + if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) + return NULL; +#endif if (!for_write) return grab_cache_page(mapping, index); return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); @@ -1261,7 +1477,7 @@ static inline void f2fs_put_page(struct page *page, int unlock) f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); unlock_page(page); } - page_cache_release(page); + put_page(page); } static inline void f2fs_put_dnode(struct dnode_of_data *dn) @@ -1396,13 +1612,12 @@ static inline void f2fs_change_bit(unsigned int nr, char *addr) enum { FI_NEW_INODE, /* indicate newly allocated inode */ FI_DIRTY_INODE, /* indicate inode is dirty or not */ + FI_AUTO_RECOVER, /* indicate inode is recoverable */ FI_DIRTY_DIR, /* indicate directory has dirty pages */ FI_INC_LINK, /* need to increment i_nlink */ FI_ACL_MODE, /* indicate acl mode */ FI_NO_ALLOC, /* should not allocate any blocks */ FI_FREE_NID, /* free allocated nide */ - FI_UPDATE_DIR, /* should update inode block for consistency */ - FI_DELAY_IPUT, /* used for the recovery */ FI_NO_EXTENT, /* not to use the extent cache */ FI_INLINE_XATTR, /* used for inline xattr */ FI_INLINE_DATA, /* used for inline data*/ @@ -1416,71 +1631,152 @@ enum { FI_DROP_CACHE, /* drop dirty page cache */ FI_DATA_EXIST, /* indicate data exists */ FI_INLINE_DOTS, /* indicate inline dot dentries */ + FI_DO_DEFRAG, /* indicate defragment is running */ + FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ }; -static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag) +static inline void __mark_inode_dirty_flag(struct inode *inode, + int flag, bool set) +{ + switch (flag) { + case FI_INLINE_XATTR: + case FI_INLINE_DATA: + case FI_INLINE_DENTRY: + if (set) + return; + case FI_DATA_EXIST: + case FI_INLINE_DOTS: + f2fs_mark_inode_dirty_sync(inode); + } +} + +static inline void set_inode_flag(struct inode *inode, int flag) +{ + if (!test_bit(flag, &F2FS_I(inode)->flags)) + set_bit(flag, &F2FS_I(inode)->flags); + __mark_inode_dirty_flag(inode, flag, true); +} + +static inline int is_inode_flag_set(struct inode *inode, int flag) +{ + return test_bit(flag, &F2FS_I(inode)->flags); +} + +static inline void clear_inode_flag(struct inode *inode, int flag) +{ + if (test_bit(flag, &F2FS_I(inode)->flags)) + clear_bit(flag, &F2FS_I(inode)->flags); + __mark_inode_dirty_flag(inode, flag, false); +} + +static inline void set_acl_inode(struct inode *inode, umode_t mode) +{ + F2FS_I(inode)->i_acl_mode = mode; + set_inode_flag(inode, FI_ACL_MODE); + f2fs_mark_inode_dirty_sync(inode); +} + +static inline void f2fs_i_links_write(struct inode *inode, bool inc) +{ + if (inc) + inc_nlink(inode); + else + drop_nlink(inode); + f2fs_mark_inode_dirty_sync(inode); +} + +static inline void f2fs_i_blocks_write(struct inode *inode, + blkcnt_t diff, bool add) +{ + bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); + bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); + + inode->i_blocks = add ? inode->i_blocks + diff : + inode->i_blocks - diff; + f2fs_mark_inode_dirty_sync(inode); + if (clean || recover) + set_inode_flag(inode, FI_AUTO_RECOVER); +} + +static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) +{ + bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); + bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); + + if (i_size_read(inode) == i_size) + return; + + i_size_write(inode, i_size); + f2fs_mark_inode_dirty_sync(inode); + if (clean || recover) + set_inode_flag(inode, FI_AUTO_RECOVER); +} + +static inline bool f2fs_skip_inode_update(struct inode *inode) { - if (!test_bit(flag, &fi->flags)) - set_bit(flag, &fi->flags); + if (!is_inode_flag_set(inode, FI_AUTO_RECOVER)) + return false; + return F2FS_I(inode)->last_disk_size == i_size_read(inode); } -static inline int is_inode_flag_set(struct f2fs_inode_info *fi, int flag) +static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) { - return test_bit(flag, &fi->flags); + F2FS_I(inode)->i_current_depth = depth; + f2fs_mark_inode_dirty_sync(inode); } -static inline void clear_inode_flag(struct f2fs_inode_info *fi, int flag) +static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) { - if (test_bit(flag, &fi->flags)) - clear_bit(flag, &fi->flags); + F2FS_I(inode)->i_xattr_nid = xnid; + f2fs_mark_inode_dirty_sync(inode); } -static inline void set_acl_inode(struct f2fs_inode_info *fi, umode_t mode) +static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) { - fi->i_acl_mode = mode; - set_inode_flag(fi, FI_ACL_MODE); + F2FS_I(inode)->i_pino = pino; + f2fs_mark_inode_dirty_sync(inode); } -static inline void get_inline_info(struct f2fs_inode_info *fi, - struct f2fs_inode *ri) +static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) { + struct f2fs_inode_info *fi = F2FS_I(inode); + if (ri->i_inline & F2FS_INLINE_XATTR) - set_inode_flag(fi, FI_INLINE_XATTR); + set_bit(FI_INLINE_XATTR, &fi->flags); if (ri->i_inline & F2FS_INLINE_DATA) - set_inode_flag(fi, FI_INLINE_DATA); + set_bit(FI_INLINE_DATA, &fi->flags); if (ri->i_inline & F2FS_INLINE_DENTRY) - set_inode_flag(fi, FI_INLINE_DENTRY); + set_bit(FI_INLINE_DENTRY, &fi->flags); if (ri->i_inline & F2FS_DATA_EXIST) - set_inode_flag(fi, FI_DATA_EXIST); + set_bit(FI_DATA_EXIST, &fi->flags); if (ri->i_inline & F2FS_INLINE_DOTS) - set_inode_flag(fi, FI_INLINE_DOTS); + set_bit(FI_INLINE_DOTS, &fi->flags); } -static inline void set_raw_inline(struct f2fs_inode_info *fi, - struct f2fs_inode *ri) +static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) { ri->i_inline = 0; - if (is_inode_flag_set(fi, FI_INLINE_XATTR)) + if (is_inode_flag_set(inode, FI_INLINE_XATTR)) ri->i_inline |= F2FS_INLINE_XATTR; - if (is_inode_flag_set(fi, FI_INLINE_DATA)) + if (is_inode_flag_set(inode, FI_INLINE_DATA)) ri->i_inline |= F2FS_INLINE_DATA; - if (is_inode_flag_set(fi, FI_INLINE_DENTRY)) + if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) ri->i_inline |= F2FS_INLINE_DENTRY; - if (is_inode_flag_set(fi, FI_DATA_EXIST)) + if (is_inode_flag_set(inode, FI_DATA_EXIST)) ri->i_inline |= F2FS_DATA_EXIST; - if (is_inode_flag_set(fi, FI_INLINE_DOTS)) + if (is_inode_flag_set(inode, FI_INLINE_DOTS)) ri->i_inline |= F2FS_INLINE_DOTS; } static inline int f2fs_has_inline_xattr(struct inode *inode) { - return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR); + return is_inode_flag_set(inode, FI_INLINE_XATTR); } -static inline unsigned int addrs_per_inode(struct f2fs_inode_info *fi) +static inline unsigned int addrs_per_inode(struct inode *inode) { - if (f2fs_has_inline_xattr(&fi->vfs_inode)) + if (f2fs_has_inline_xattr(inode)) return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; return DEF_ADDRS_PER_INODE; } @@ -1502,43 +1798,43 @@ static inline int inline_xattr_size(struct inode *inode) static inline int f2fs_has_inline_data(struct inode *inode) { - return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DATA); + return is_inode_flag_set(inode, FI_INLINE_DATA); } static inline void f2fs_clear_inline_inode(struct inode *inode) { - clear_inode_flag(F2FS_I(inode), FI_INLINE_DATA); - clear_inode_flag(F2FS_I(inode), FI_DATA_EXIST); + clear_inode_flag(inode, FI_INLINE_DATA); + clear_inode_flag(inode, FI_DATA_EXIST); } static inline int f2fs_exist_data(struct inode *inode) { - return is_inode_flag_set(F2FS_I(inode), FI_DATA_EXIST); + return is_inode_flag_set(inode, FI_DATA_EXIST); } static inline int f2fs_has_inline_dots(struct inode *inode) { - return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DOTS); + return is_inode_flag_set(inode, FI_INLINE_DOTS); } static inline bool f2fs_is_atomic_file(struct inode *inode) { - return is_inode_flag_set(F2FS_I(inode), FI_ATOMIC_FILE); + return is_inode_flag_set(inode, FI_ATOMIC_FILE); } static inline bool f2fs_is_volatile_file(struct inode *inode) { - return is_inode_flag_set(F2FS_I(inode), FI_VOLATILE_FILE); + return is_inode_flag_set(inode, FI_VOLATILE_FILE); } static inline bool f2fs_is_first_block_written(struct inode *inode) { - return is_inode_flag_set(F2FS_I(inode), FI_FIRST_BLOCK_WRITTEN); + return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); } static inline bool f2fs_is_drop_cache(struct inode *inode) { - return is_inode_flag_set(F2FS_I(inode), FI_DROP_CACHE); + return is_inode_flag_set(inode, FI_DROP_CACHE); } static inline void *inline_data_addr(struct page *page) @@ -1549,7 +1845,7 @@ static inline void *inline_data_addr(struct page *page) static inline int f2fs_has_inline_dentry(struct inode *inode) { - return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DENTRY); + return is_inode_flag_set(inode, FI_INLINE_DENTRY); } static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) @@ -1566,11 +1862,13 @@ static inline int is_file(struct inode *inode, int type) static inline void set_file(struct inode *inode, int type) { F2FS_I(inode)->i_advise |= type; + f2fs_mark_inode_dirty_sync(inode); } static inline void clear_file(struct inode *inode, int type) { F2FS_I(inode)->i_advise &= ~type; + f2fs_mark_inode_dirty_sync(inode); } static inline int f2fs_readonly(struct super_block *sb) @@ -1580,13 +1878,7 @@ static inline int f2fs_readonly(struct super_block *sb) static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) { - return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); -} - -static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi) -{ - set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); - sbi->sb->s_flags |= MS_RDONLY; + return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); } static inline bool is_dot_dotdot(const struct qstr *str) @@ -1602,13 +1894,21 @@ static inline bool is_dot_dotdot(const struct qstr *str) static inline bool f2fs_may_extent_tree(struct inode *inode) { - mode_t mode = inode->i_mode; - if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || - is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT)) + is_inode_flag_set(inode, FI_NO_EXTENT)) return false; - return S_ISREG(mode); + return S_ISREG(inode->i_mode); +} + +static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, + size_t size, gfp_t flags) +{ +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(sbi, FAULT_KMALLOC)) + return NULL; +#endif + return kmalloc(size, flags); } static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) @@ -1632,14 +1932,14 @@ static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) } #define get_inode_mode(i) \ - ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \ + ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) /* get offset of first page in next direct node */ -#define PGOFS_OF_NEXT_DNODE(pgofs, fi) \ - ((pgofs < ADDRS_PER_INODE(fi)) ? ADDRS_PER_INODE(fi) : \ - (pgofs - ADDRS_PER_INODE(fi) + ADDRS_PER_BLOCK) / \ - ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(fi)) +#define PGOFS_OF_NEXT_DNODE(pgofs, inode) \ + ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \ + (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \ + ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode)) /* * file.c @@ -1647,7 +1947,7 @@ static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) int f2fs_sync_file(struct file *, loff_t, loff_t, int); void truncate_data_blocks(struct dnode_of_data *); int truncate_blocks(struct inode *, u64, bool); -int f2fs_truncate(struct inode *, bool); +int f2fs_truncate(struct inode *); int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); int f2fs_setattr(struct dentry *, struct iattr *); int truncate_hole(struct inode *, pgoff_t, pgoff_t); @@ -1660,9 +1960,10 @@ long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); */ void f2fs_set_inode_flags(struct inode *); struct inode *f2fs_iget(struct super_block *, unsigned long); +struct inode *f2fs_iget_retry(struct super_block *, unsigned long); int try_to_free_nats(struct f2fs_sb_info *, int); -void update_inode(struct inode *, struct page *); -void update_inode_page(struct inode *); +int update_inode(struct inode *, struct page *); +int update_inode_page(struct inode *); int f2fs_write_inode(struct inode *, struct writeback_control *); void f2fs_evict_inode(struct inode *); void handle_failed_inode(struct inode *); @@ -1675,29 +1976,34 @@ struct dentry *f2fs_get_parent(struct dentry *child); /* * dir.c */ -extern unsigned char f2fs_filetype_table[F2FS_FT_MAX]; void set_de_type(struct f2fs_dir_entry *, umode_t); - -struct f2fs_dir_entry *find_target_dentry(struct f2fs_filename *, +unsigned char get_de_type(struct f2fs_dir_entry *); +struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *, f2fs_hash_t, int *, struct f2fs_dentry_ptr *); bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *, - unsigned int, struct f2fs_str *); + unsigned int, struct fscrypt_str *); void do_make_empty_dir(struct inode *, struct inode *, struct f2fs_dentry_ptr *); struct page *init_inode_metadata(struct inode *, struct inode *, - const struct qstr *, struct page *); + const struct qstr *, const struct qstr *, struct page *); void update_parent_metadata(struct inode *, struct inode *, unsigned int); int room_for_filename(const void *, int, int); -void f2fs_drop_nlink(struct inode *, struct inode *, struct page *); -struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *, +void f2fs_drop_nlink(struct inode *, struct inode *); +struct f2fs_dir_entry *__f2fs_find_entry(struct inode *, struct fscrypt_name *, + struct page **); +struct f2fs_dir_entry *f2fs_find_entry(struct inode *, const struct qstr *, struct page **); struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); -ino_t f2fs_inode_by_name(struct inode *, struct qstr *); +ino_t f2fs_inode_by_name(struct inode *, const struct qstr *, struct page **); void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, struct page *, struct inode *); int update_dent_inode(struct inode *, struct inode *, const struct qstr *); void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *, const struct qstr *, f2fs_hash_t , unsigned int); +int f2fs_add_regular_entry(struct inode *, const struct qstr *, + const struct qstr *, struct inode *, nid_t, umode_t); +int __f2fs_do_add_link(struct inode *, struct fscrypt_name*, struct inode *, + nid_t, umode_t); int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t, umode_t); void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *, @@ -1714,10 +2020,13 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) /* * super.c */ +int f2fs_inode_dirtied(struct inode *); +void f2fs_inode_synced(struct inode *); int f2fs_commit_super(struct f2fs_sb_info *, bool); int f2fs_sync_fs(struct super_block *, int); extern __printf(3, 4) void f2fs_msg(struct super_block *, const char *, const char *, ...); +int sanity_check_ckpt(struct f2fs_sb_info *sbi); /* * hash.c @@ -1735,6 +2044,7 @@ int need_dentry_mark(struct f2fs_sb_info *, nid_t); bool is_checkpointed_node(struct f2fs_sb_info *, nid_t); bool need_inode_block_update(struct f2fs_sb_info *, nid_t); void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); +pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t); int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); int truncate_inode_blocks(struct inode *, pgoff_t); int truncate_xattr_node(struct inode *, struct page *); @@ -1745,8 +2055,11 @@ struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); void ra_node_page(struct f2fs_sb_info *, nid_t); struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); struct page *get_node_page_ra(struct page *, int); -void sync_inode_page(struct dnode_of_data *); -int sync_node_pages(struct f2fs_sb_info *, nid_t, struct writeback_control *); +void move_node_page(struct page *, int); +int fsync_node_pages(struct f2fs_sb_info *, struct inode *, + struct writeback_control *, bool); +int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *); +void build_free_nids(struct f2fs_sb_info *); bool alloc_nid(struct f2fs_sb_info *, nid_t *); void alloc_nid_done(struct f2fs_sb_info *, nid_t); void alloc_nid_failed(struct f2fs_sb_info *, nid_t); @@ -1766,8 +2079,9 @@ void destroy_node_manager_caches(void); * segment.c */ void register_inmem_page(struct inode *, struct page *); -int commit_inmem_pages(struct inode *, bool); -void f2fs_balance_fs(struct f2fs_sb_info *); +void drop_inmem_pages(struct inode *); +int commit_inmem_pages(struct inode *); +void f2fs_balance_fs(struct f2fs_sb_info *, bool); void f2fs_balance_fs_bg(struct f2fs_sb_info *); int f2fs_issue_flush(struct f2fs_sb_info *); int create_flush_cmd_control(struct f2fs_sb_info *); @@ -1777,7 +2091,6 @@ bool is_checkpointed_data(struct f2fs_sb_info *, block_t); void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); void release_discard_addrs(struct f2fs_sb_info *); -bool discard_next_dnode(struct f2fs_sb_info *, block_t); int npages_for_summary_flush(struct f2fs_sb_info *, bool); void allocate_new_segments(struct f2fs_sb_info *); int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *); @@ -1787,16 +2100,17 @@ void write_meta_page(struct f2fs_sb_info *, struct page *); void write_node_page(unsigned int, struct f2fs_io_info *); void write_data_page(struct dnode_of_data *, struct f2fs_io_info *); void rewrite_data_page(struct f2fs_io_info *); +void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *, + block_t, block_t, bool, bool); void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *, - block_t, block_t, unsigned char, bool); + block_t, block_t, unsigned char, bool, bool); void allocate_data_block(struct f2fs_sb_info *, struct page *, block_t, block_t *, struct f2fs_summary *, int); -void f2fs_wait_on_page_writeback(struct page *, enum page_type); +void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool); void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t); void write_data_summaries(struct f2fs_sb_info *, block_t); void write_node_summaries(struct f2fs_sb_info *, block_t); -int lookup_journal_in_cursum(struct f2fs_summary_block *, - int, unsigned int, int); +int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int); void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *); int build_segment_manager(struct f2fs_sb_info *); void destroy_segment_manager(struct f2fs_sb_info *); @@ -1806,6 +2120,7 @@ void destroy_segment_manager_caches(void); /* * checkpoint.c */ +void f2fs_stop_checkpoint(struct f2fs_sb_info *, bool); struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t); @@ -1813,21 +2128,21 @@ bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool); void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); -void add_dirty_inode(struct f2fs_sb_info *, nid_t, int type); -void remove_dirty_inode(struct f2fs_sb_info *, nid_t, int type); -void release_dirty_inode(struct f2fs_sb_info *); +void add_ino_entry(struct f2fs_sb_info *, nid_t, int type); +void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type); +void release_ino_entry(struct f2fs_sb_info *, bool); bool exist_written_data(struct f2fs_sb_info *, nid_t, int); +int f2fs_sync_inode_meta(struct f2fs_sb_info *); int acquire_orphan_inode(struct f2fs_sb_info *); void release_orphan_inode(struct f2fs_sb_info *); -void add_orphan_inode(struct f2fs_sb_info *, nid_t); +void add_orphan_inode(struct inode *); void remove_orphan_inode(struct f2fs_sb_info *, nid_t); int recover_orphan_inodes(struct f2fs_sb_info *); int get_valid_checkpoint(struct f2fs_sb_info *); void update_dirty_page(struct inode *, struct page *); -void add_dirty_dir_inode(struct inode *); -void remove_dirty_dir_inode(struct inode *); -void sync_dirty_dir_inodes(struct f2fs_sb_info *); -void write_checkpoint(struct f2fs_sb_info *, struct cp_control *); +void remove_dirty_inode(struct inode *); +int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type); +int write_checkpoint(struct f2fs_sb_info *, struct cp_control *); void init_ino_entry_info(struct f2fs_sb_info *); int __init create_checkpoint_caches(void); void destroy_checkpoint_caches(void); @@ -1836,34 +2151,46 @@ void destroy_checkpoint_caches(void); * data.c */ void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); +void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *, + struct page *, nid_t, enum page_type, int); +void f2fs_flush_merged_bios(struct f2fs_sb_info *); int f2fs_submit_page_bio(struct f2fs_io_info *); void f2fs_submit_page_mbio(struct f2fs_io_info *); void set_data_blkaddr(struct dnode_of_data *); +void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t); +int reserve_new_blocks(struct dnode_of_data *, blkcnt_t); int reserve_new_block(struct dnode_of_data *); int f2fs_get_block(struct dnode_of_data *, pgoff_t); +ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *); int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); struct page *get_read_data_page(struct inode *, pgoff_t, int, bool); struct page *find_data_page(struct inode *, pgoff_t); struct page *get_lock_data_page(struct inode *, pgoff_t, bool); struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); int do_write_data_page(struct f2fs_io_info *); +int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int); int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); +void f2fs_set_page_dirty_nobuffers(struct page *); void f2fs_invalidate_page(struct page *, unsigned int, unsigned int); int f2fs_release_page(struct page *, gfp_t); +#ifdef CONFIG_MIGRATION +int f2fs_migrate_page(struct address_space *, struct page *, struct page *, + enum migrate_mode); +#endif /* * gc.c */ int start_gc_thread(struct f2fs_sb_info *); void stop_gc_thread(struct f2fs_sb_info *); -block_t start_bidx_of_node(unsigned int, struct f2fs_inode_info *); +block_t start_bidx_of_node(unsigned int, struct inode *); int f2fs_gc(struct f2fs_sb_info *, bool); void build_gc_manager(struct f2fs_sb_info *); /* * recovery.c */ -int recover_fsync_data(struct f2fs_sb_info *); +int recover_fsync_data(struct f2fs_sb_info *, bool); bool space_for_roll_forward(struct f2fs_sb_info *); /* @@ -1877,18 +2204,20 @@ struct f2fs_stat_info { int main_area_segs, main_area_sections, main_area_zones; unsigned long long hit_largest, hit_cached, hit_rbtree; unsigned long long hit_total, total_ext; - int ext_tree, ext_node; - int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta; + int ext_tree, zombie_tree, ext_node; + s64 ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta; + s64 inmem_pages; + unsigned int ndirty_dirs, ndirty_files, ndirty_all; int nats, dirty_nats, sits, dirty_sits, fnids; int total_count, utilization; - int bg_gc, inmem_pages, wb_pages; - int inline_xattr, inline_inode, inline_dir; - unsigned int valid_count, valid_node_count, valid_inode_count; + int bg_gc, wb_bios; + int inline_xattr, inline_inode, inline_dir, orphans; + unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; unsigned int bimodal, avg_vblocks; int util_free, util_valid, util_invalid; int rsvd_segs, overp_segs; int dirty_count, node_pages, meta_pages; - int prefree_count, call_count, cp_count; + int prefree_count, call_count, cp_count, bg_cp_count; int tot_segs, node_segs, data_segs, free_segs, free_secs; int bg_node_segs, bg_data_segs; int tot_blks, data_blks, node_blks; @@ -1909,10 +2238,11 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) } #define stat_inc_cp_count(si) ((si)->cp_count++) +#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) #define stat_inc_call_count(si) ((si)->call_count++) #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) -#define stat_inc_dirty_dir(sbi) ((sbi)->n_dirty_dirs++) -#define stat_dec_dirty_dir(sbi) ((sbi)->n_dirty_dirs--) +#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) +#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) @@ -1987,14 +2317,15 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) int f2fs_build_stats(struct f2fs_sb_info *); void f2fs_destroy_stats(struct f2fs_sb_info *); -void __init f2fs_create_root_stats(void); +int __init f2fs_create_root_stats(void); void f2fs_destroy_root_stats(void); #else #define stat_inc_cp_count(si) +#define stat_inc_bg_cp_count(si) #define stat_inc_call_count(si) #define stat_inc_bggc_count(si) -#define stat_inc_dirty_dir(sbi) -#define stat_dec_dirty_dir(sbi) +#define stat_inc_dirty_inode(sbi, type) +#define stat_dec_dirty_inode(sbi, type) #define stat_inc_total_hit(sb) #define stat_inc_rbtree_node_hit(sb) #define stat_inc_largest_node_hit(sbi) @@ -2015,7 +2346,7 @@ void f2fs_destroy_root_stats(void); static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } -static inline void __init f2fs_create_root_stats(void) { } +static inline int __init f2fs_create_root_stats(void) { return 0; } static inline void f2fs_destroy_root_stats(void) { } #endif @@ -2044,16 +2375,15 @@ int f2fs_convert_inline_inode(struct inode *); int f2fs_write_inline_data(struct inode *, struct page *); bool recover_inline_data(struct inode *, struct page *); struct f2fs_dir_entry *find_in_inline_dir(struct inode *, - struct f2fs_filename *, struct page **); -struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *, struct page **); + struct fscrypt_name *, struct page **); int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *); -int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *, - nid_t, umode_t); +int f2fs_add_inline_entry(struct inode *, const struct qstr *, + const struct qstr *, struct inode *, nid_t, umode_t); void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *, struct inode *, struct inode *); bool f2fs_empty_inline_dir(struct inode *); int f2fs_read_inline_dir(struct file *, struct dir_context *, - struct f2fs_str *); + struct fscrypt_str *); int f2fs_inline_data_fiemap(struct inode *, struct fiemap_extent_info *, __u64, __u64); @@ -2069,8 +2399,8 @@ void f2fs_leave_shrinker(struct f2fs_sb_info *); * extent_cache.c */ unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); -void f2fs_drop_largest_extent(struct inode *, pgoff_t); -void f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); +bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); +void f2fs_drop_extent_tree(struct inode *); unsigned int f2fs_destroy_extent_node(struct inode *); void f2fs_destroy_extent_tree(struct inode *); bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *); @@ -2084,13 +2414,9 @@ void destroy_extent_cache(void); /* * crypto support */ -static inline int f2fs_encrypted_inode(struct inode *inode) +static inline bool f2fs_encrypted_inode(struct inode *inode) { -#ifdef CONFIG_F2FS_FS_ENCRYPTION return file_is_encrypt(inode); -#else - return 0; -#endif } static inline void f2fs_set_encrypted_inode(struct inode *inode) @@ -2102,113 +2428,67 @@ static inline void f2fs_set_encrypted_inode(struct inode *inode) static inline bool f2fs_bio_encrypted(struct bio *bio) { -#ifdef CONFIG_F2FS_FS_ENCRYPTION - return unlikely(bio->bi_private != NULL); -#else - return false; -#endif + return bio->bi_private != NULL; } static inline int f2fs_sb_has_crypto(struct super_block *sb) { -#ifdef CONFIG_F2FS_FS_ENCRYPTION return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); -#else - return 0; -#endif } -static inline bool f2fs_may_encrypt(struct inode *inode) +static inline int f2fs_sb_mounted_hmsmr(struct super_block *sb) { -#ifdef CONFIG_F2FS_FS_ENCRYPTION - mode_t mode = inode->i_mode; - - return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); -#else - return 0; -#endif + return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_HMSMR); } -/* crypto_policy.c */ -int f2fs_is_child_context_consistent_with_parent(struct inode *, - struct inode *); -int f2fs_inherit_context(struct inode *, struct inode *, struct page *); -int f2fs_process_policy(const struct f2fs_encryption_policy *, struct inode *); -int f2fs_get_policy(struct inode *, struct f2fs_encryption_policy *); - -/* crypt.c */ -extern struct kmem_cache *f2fs_crypt_info_cachep; -bool f2fs_valid_contents_enc_mode(uint32_t); -uint32_t f2fs_validate_encryption_key_size(uint32_t, uint32_t); -struct f2fs_crypto_ctx *f2fs_get_crypto_ctx(struct inode *); -void f2fs_release_crypto_ctx(struct f2fs_crypto_ctx *); -struct page *f2fs_encrypt(struct inode *, struct page *); -int f2fs_decrypt(struct f2fs_crypto_ctx *, struct page *); -int f2fs_decrypt_one(struct inode *, struct page *); -void f2fs_end_io_crypto_work(struct f2fs_crypto_ctx *, struct bio *); - -/* crypto_key.c */ -void f2fs_free_encryption_info(struct inode *, struct f2fs_crypt_info *); -int _f2fs_get_encryption_info(struct inode *inode); - -/* crypto_fname.c */ -bool f2fs_valid_filenames_enc_mode(uint32_t); -u32 f2fs_fname_crypto_round_up(u32, u32); -int f2fs_fname_crypto_alloc_buffer(struct inode *, u32, struct f2fs_str *); -int f2fs_fname_disk_to_usr(struct inode *, f2fs_hash_t *, - const struct f2fs_str *, struct f2fs_str *); -int f2fs_fname_usr_to_disk(struct inode *, const struct qstr *, - struct f2fs_str *); - -#ifdef CONFIG_F2FS_FS_ENCRYPTION -void f2fs_restore_and_release_control_page(struct page **); -void f2fs_restore_control_page(struct page *); - -int __init f2fs_init_crypto(void); -int f2fs_crypto_initialize(void); -void f2fs_exit_crypto(void); - -int f2fs_has_encryption_key(struct inode *); - -static inline int f2fs_get_encryption_info(struct inode *inode) +static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) { - struct f2fs_crypt_info *ci = F2FS_I(inode)->i_crypt_info; + clear_opt(sbi, ADAPTIVE); + clear_opt(sbi, LFS); - if (!ci || - (ci->ci_keyring_key && - (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) | - (1 << KEY_FLAG_REVOKED) | - (1 << KEY_FLAG_DEAD))))) - return _f2fs_get_encryption_info(inode); - return 0; + switch (mt) { + case F2FS_MOUNT_ADAPTIVE: + set_opt(sbi, ADAPTIVE); + break; + case F2FS_MOUNT_LFS: + set_opt(sbi, LFS); + break; + } } -void f2fs_fname_crypto_free_buffer(struct f2fs_str *); -int f2fs_fname_setup_filename(struct inode *, const struct qstr *, - int lookup, struct f2fs_filename *); -void f2fs_fname_free_filename(struct f2fs_filename *); -#else -static inline void f2fs_restore_and_release_control_page(struct page **p) { } -static inline void f2fs_restore_control_page(struct page *p) { } - -static inline int __init f2fs_init_crypto(void) { return 0; } -static inline void f2fs_exit_crypto(void) { } - -static inline int f2fs_has_encryption_key(struct inode *i) { return 0; } -static inline int f2fs_get_encryption_info(struct inode *i) { return 0; } -static inline void f2fs_fname_crypto_free_buffer(struct f2fs_str *p) { } - -static inline int f2fs_fname_setup_filename(struct inode *dir, - const struct qstr *iname, - int lookup, struct f2fs_filename *fname) +static inline bool f2fs_may_encrypt(struct inode *inode) { - memset(fname, 0, sizeof(struct f2fs_filename)); - fname->usr_fname = iname; - fname->disk_name.name = (unsigned char *)iname->name; - fname->disk_name.len = iname->len; +#ifdef CONFIG_F2FS_FS_ENCRYPTION + umode_t mode = inode->i_mode; + + return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); +#else return 0; +#endif } -static inline void f2fs_fname_free_filename(struct f2fs_filename *fname) { } +#ifndef CONFIG_F2FS_FS_ENCRYPTION +#define fscrypt_set_d_op(i) +#define fscrypt_get_ctx fscrypt_notsupp_get_ctx +#define fscrypt_release_ctx fscrypt_notsupp_release_ctx +#define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page +#define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page +#define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages +#define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page +#define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page +#define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range +#define fscrypt_process_policy fscrypt_notsupp_process_policy +#define fscrypt_get_policy fscrypt_notsupp_get_policy +#define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context +#define fscrypt_inherit_context fscrypt_notsupp_inherit_context +#define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info +#define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info +#define fscrypt_setup_filename fscrypt_notsupp_setup_filename +#define fscrypt_free_filename fscrypt_notsupp_free_filename +#define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size +#define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer +#define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer +#define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr +#define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk #endif #endif |