diff options
Diffstat (limited to 'fs/f2fs/gc.h')
| -rw-r--r-- | fs/f2fs/gc.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h index ee5d7f30a1f8..0c8dae12dc51 100644 --- a/fs/f2fs/gc.h +++ b/fs/f2fs/gc.h @@ -14,6 +14,14 @@ #define DEF_GC_THREAD_MIN_SLEEP_TIME 30000 /* milliseconds */ #define DEF_GC_THREAD_MAX_SLEEP_TIME 60000 #define DEF_GC_THREAD_NOGC_SLEEP_TIME 300000 /* wait 5 min */ + +/* choose candidates from sections which has age of more than 7 days */ +#define DEF_GC_THREAD_AGE_THRESHOLD (60 * 60 * 24 * 7) +#define DEF_GC_THREAD_CANDIDATE_RATIO 20 /* select 20% oldest sections as candidates */ +#define DEF_GC_THREAD_MAX_CANDIDATE_COUNT 10 /* select at most 10 sections as candidates */ +#define DEF_GC_THREAD_AGE_WEIGHT 60 /* age weight */ +#define DEFAULT_ACCURACY_CLASS 10000 /* accuracy class */ + #define LIMIT_INVALID_BLOCK 40 /* percentage over total user space */ #define LIMIT_FREE_BLOCK 40 /* percentage over invalid + free space */ @@ -41,6 +49,23 @@ struct gc_inode_list { struct radix_tree_root iroot; }; +struct victim_info { + unsigned long long mtime; /* mtime of section */ + unsigned int segno; /* section No. */ +}; + +struct victim_entry { + struct rb_node rb_node; /* rb node located in rb-tree */ + union { + struct { + unsigned long long mtime; /* mtime of section */ + unsigned int segno; /* segment No. */ + }; + struct victim_info vi; /* victim info */ + }; + struct list_head list; +}; + /* * inline functions */ |