diff options
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index ec52e06f8e61..e8953c3dc81a 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -107,6 +107,7 @@ extern const char *f2fs_fault_name[FAULT_MAX]; #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000 #define F2FS_MOUNT_GC_MERGE 0x20000000 #define F2FS_MOUNT_COMPRESS_CACHE 0x40000000 +#define F2FS_MOUNT_AGE_EXTENT_CACHE 0x80000000 #define F2FS_OPTION(sbi) ((sbi)->mount_opt) #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option) @@ -607,9 +608,22 @@ enum { /* number of extent info in extent cache we try to shrink */ #define READ_EXTENT_CACHE_SHRINK_NUMBER 128 +/* number of age extent info in extent cache we try to shrink */ +#define AGE_EXTENT_CACHE_SHRINK_NUMBER 128 +#define LAST_AGE_WEIGHT 30 +#define SAME_AGE_REGION 1024 + +/* + * Define data block with age less than 1GB as hot data + * define data block with age less than 10GB but more than 1GB as warm data + */ +#define DEF_HOT_DATA_AGE_THRESHOLD 262144 +#define DEF_WARM_DATA_AGE_THRESHOLD 2621440 + /* extent cache type */ enum extent_type { EX_READ, + EX_BLOCK_AGE, NR_EXTENT_CACHES, }; @@ -637,6 +651,13 @@ struct extent_info { unsigned int c_len; #endif }; + /* block age extent_cache */ + struct { + /* block age of the extent */ + unsigned long long age; + /* last total blocks allocated */ + unsigned long long last_blocks; + }; }; }; @@ -1653,6 +1674,11 @@ struct f2fs_sb_info { /* for extent tree cache */ struct extent_tree_info extent_tree[NR_EXTENT_CACHES]; + atomic64_t allocated_data_blocks; /* for block age extent_cache */ + + /* The threshold used for hot and warm data seperation*/ + unsigned int hot_data_age_threshold; + unsigned int warm_data_age_threshold; /* basic filesystem units */ unsigned int log_sectors_per_block; /* log2 sectors per block */ @@ -3857,6 +3883,8 @@ struct f2fs_stat_info { unsigned long long ext_mem[NR_EXTENT_CACHES]; /* for read extent cache */ unsigned long long hit_largest; + /* for block age extent cache */ + unsigned long long allocated_data_blocks; int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; int ndirty_data, ndirty_qdata; unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; @@ -4168,6 +4196,16 @@ void f2fs_update_read_extent_cache_range(struct dnode_of_data *dn, unsigned int f2fs_shrink_read_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); +/* block age extent cache ops */ +void f2fs_init_age_extent_tree(struct inode *inode); +bool f2fs_lookup_age_extent_cache(struct inode *inode, pgoff_t pgofs, + struct extent_info *ei); +void f2fs_update_age_extent_cache(struct dnode_of_data *dn); +void f2fs_update_age_extent_cache_range(struct dnode_of_data *dn, + pgoff_t fofs, unsigned int len); +unsigned int f2fs_shrink_age_extent_tree(struct f2fs_sb_info *sbi, + int nr_shrink); + /* * sysfs.c */ |