diff options
Diffstat (limited to 'fs/f2fs/node.h')
| -rw-r--r-- | fs/f2fs/node.h | 123 |
1 files changed, 88 insertions, 35 deletions
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index e4fffd2d98c4..868bec65e51c 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -15,15 +15,21 @@ #define NAT_BLOCK_OFFSET(start_nid) (start_nid / NAT_ENTRY_PER_BLOCK) /* # of pages to perform synchronous readahead before building free nids */ -#define FREE_NID_PAGES 4 +#define FREE_NID_PAGES 8 +#define MAX_FREE_NIDS (NAT_ENTRY_PER_BLOCK * FREE_NID_PAGES) -#define DEF_RA_NID_PAGES 4 /* # of nid pages to be readaheaded */ +#define DEF_RA_NID_PAGES 0 /* # of nid pages to be readaheaded */ /* maximum readahead size for node during getting data blocks */ #define MAX_RA_NODE 128 /* control the memory footprint threshold (10MB per 1GB ram) */ -#define DEF_RAM_THRESHOLD 10 +#define DEF_RAM_THRESHOLD 1 + +/* control dirty nats ratio threshold (default: 10% over max nid count) */ +#define DEF_DIRTY_NAT_RATIO_THRESHOLD 10 +/* control total # of nats */ +#define DEF_NAT_CACHE_THRESHOLD 100000 /* vector size for gang look-up from nat cache that consists of radix tree */ #define NATVEC_SIZE 64 @@ -117,6 +123,17 @@ static inline void raw_nat_from_node_info(struct f2fs_nat_entry *raw_ne, raw_ne->version = ni->version; } +static inline bool excess_dirty_nats(struct f2fs_sb_info *sbi) +{ + return NM_I(sbi)->dirty_nat_cnt >= NM_I(sbi)->max_nid * + NM_I(sbi)->dirty_nats_ratio / 100; +} + +static inline bool excess_cached_nats(struct f2fs_sb_info *sbi) +{ + return NM_I(sbi)->nat_cnt >= DEF_NAT_CACHE_THRESHOLD; +} + enum mem_type { FREE_NIDS, /* indicates the free nid list */ NAT_ENTRIES, /* indicates the cached nat entry */ @@ -183,7 +200,7 @@ static inline pgoff_t current_nat_addr(struct f2fs_sb_info *sbi, nid_t start) block_addr = (pgoff_t)(nm_i->nat_blkaddr + (seg_off << sbi->log_blocks_per_seg << 1) + - (block_off & ((1 << sbi->log_blocks_per_seg) - 1))); + (block_off & (sbi->blocks_per_seg - 1))); if (f2fs_test_bit(block_off, nm_i->nat_bitmap)) block_addr += sbi->blocks_per_seg; @@ -212,6 +229,37 @@ static inline void set_to_next_nat(struct f2fs_nm_info *nm_i, nid_t start_nid) f2fs_change_bit(block_off, nm_i->nat_bitmap); } +static inline nid_t ino_of_node(struct page *node_page) +{ + struct f2fs_node *rn = F2FS_NODE(node_page); + return le32_to_cpu(rn->footer.ino); +} + +static inline nid_t nid_of_node(struct page *node_page) +{ + struct f2fs_node *rn = F2FS_NODE(node_page); + return le32_to_cpu(rn->footer.nid); +} + +static inline unsigned int ofs_of_node(struct page *node_page) +{ + struct f2fs_node *rn = F2FS_NODE(node_page); + unsigned flag = le32_to_cpu(rn->footer.flag); + return flag >> OFFSET_BIT_SHIFT; +} + +static inline __u64 cpver_of_node(struct page *node_page) +{ + struct f2fs_node *rn = F2FS_NODE(node_page); + return le64_to_cpu(rn->footer.cp_ver); +} + +static inline block_t next_blkaddr_of_node(struct page *node_page) +{ + struct f2fs_node *rn = F2FS_NODE(node_page); + return le32_to_cpu(rn->footer.next_blkaddr); +} + static inline void fill_node_footer(struct page *page, nid_t nid, nid_t ino, unsigned int ofs, bool reset) { @@ -242,40 +290,30 @@ static inline void fill_node_footer_blkaddr(struct page *page, block_t blkaddr) { struct f2fs_checkpoint *ckpt = F2FS_CKPT(F2FS_P_SB(page)); struct f2fs_node *rn = F2FS_NODE(page); + size_t crc_offset = le32_to_cpu(ckpt->checksum_offset); + __u64 cp_ver = le64_to_cpu(ckpt->checkpoint_ver); - rn->footer.cp_ver = ckpt->checkpoint_ver; + if (__is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG)) { + __u64 crc = le32_to_cpu(*((__le32 *) + ((unsigned char *)ckpt + crc_offset))); + cp_ver |= (crc << 32); + } + rn->footer.cp_ver = cpu_to_le64(cp_ver); rn->footer.next_blkaddr = cpu_to_le32(blkaddr); } -static inline nid_t ino_of_node(struct page *node_page) -{ - struct f2fs_node *rn = F2FS_NODE(node_page); - return le32_to_cpu(rn->footer.ino); -} - -static inline nid_t nid_of_node(struct page *node_page) -{ - struct f2fs_node *rn = F2FS_NODE(node_page); - return le32_to_cpu(rn->footer.nid); -} - -static inline unsigned int ofs_of_node(struct page *node_page) -{ - struct f2fs_node *rn = F2FS_NODE(node_page); - unsigned flag = le32_to_cpu(rn->footer.flag); - return flag >> OFFSET_BIT_SHIFT; -} - -static inline unsigned long long cpver_of_node(struct page *node_page) +static inline bool is_recoverable_dnode(struct page *page) { - struct f2fs_node *rn = F2FS_NODE(node_page); - return le64_to_cpu(rn->footer.cp_ver); -} + struct f2fs_checkpoint *ckpt = F2FS_CKPT(F2FS_P_SB(page)); + size_t crc_offset = le32_to_cpu(ckpt->checksum_offset); + __u64 cp_ver = cur_cp_version(ckpt); -static inline block_t next_blkaddr_of_node(struct page *node_page) -{ - struct f2fs_node *rn = F2FS_NODE(node_page); - return le32_to_cpu(rn->footer.next_blkaddr); + if (__is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG)) { + __u64 crc = le32_to_cpu(*((__le32 *) + ((unsigned char *)ckpt + crc_offset))); + cp_ver |= (crc << 32); + } + return cpu_to_le64(cp_ver) == cpver_of_node(page); } /* @@ -317,17 +355,17 @@ static inline bool IS_DNODE(struct page *node_page) return true; } -static inline void set_nid(struct page *p, int off, nid_t nid, bool i) +static inline int set_nid(struct page *p, int off, nid_t nid, bool i) { struct f2fs_node *rn = F2FS_NODE(p); - f2fs_wait_on_page_writeback(p, NODE); + f2fs_wait_on_page_writeback(p, NODE, true); if (i) rn->i.i_nid[off - NODE_DIR1_BLOCK] = cpu_to_le32(nid); else rn->in.nid[off] = cpu_to_le32(nid); - set_page_dirty(p); + return set_page_dirty(p); } static inline nid_t get_nid(struct page *p, int off, bool i) @@ -370,6 +408,21 @@ static inline int is_node(struct page *page, int type) #define is_fsync_dnode(page) is_node(page, FSYNC_BIT_SHIFT) #define is_dent_dnode(page) is_node(page, DENT_BIT_SHIFT) +static inline int is_inline_node(struct page *page) +{ + return PageChecked(page); +} + +static inline void set_inline_node(struct page *page) +{ + SetPageChecked(page); +} + +static inline void clear_inline_node(struct page *page) +{ + ClearPageChecked(page); +} + static inline void set_cold_node(struct inode *inode, struct page *page) { struct f2fs_node *rn = F2FS_NODE(page); |