f2fs: reclaim prefree segments periodically

[karo-tx-linux.git] / fs / f2fs / f2fs.h

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 29492754bd7d2f9965af7ad939080661fe6275ac..6dff777cd94a8f20e264723289ece8d46a65ed47 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -299,6 +299,9 @@ struct f2fs_sm_info {
        unsigned int main_segments;     /* # of segments in main area */
        unsigned int reserved_segments; /* # of reserved segments */
        unsigned int ovp_segments;      /* # of overprovision segments */
+
+       /* a threshold to reclaim prefree segments */
+       unsigned int rec_prefree_segments;
 };
 
 /*
@@ -361,8 +364,8 @@ struct f2fs_sb_info {
        struct rw_semaphore cp_rwsem;           /* blocking FS operations */
        struct mutex node_write;                /* locking node writes */
        struct mutex writepages;                /* mutex for writepages() */
-       int por_doing;                          /* recovery is doing or not */
-       int on_build_free_nids;                 /* build_free_nids is doing */
+       bool por_doing;                         /* recovery is doing or not */
+       bool on_build_free_nids;                /* build_free_nids is doing */
        struct task_struct *cp_task;            /* checkpoint task */
 
        /* for orphan inode management */
@@ -1155,7 +1158,16 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
        return (struct f2fs_stat_info*)sbi->stat_info;
 }
 
-#define stat_inc_call_count(si)        ((si)->call_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_total_hit(sb)         ((F2FS_SB(sb))->total_hit_ext++)
+#define stat_inc_read_hit(sb)          ((F2FS_SB(sb))->read_hit_ext++)
+#define stat_inc_seg_type(sbi, curseg)                                 \
+               ((sbi)->segment_count[(curseg)->alloc_type]++)
+#define stat_inc_block_count(sbi, curseg)                              \
+               ((sbi)->block_count[(curseg)->alloc_type]++)
 
 #define stat_inc_seg_count(sbi, type)                                  \
        do {                                                            \
@@ -1190,6 +1202,13 @@ void __init f2fs_create_root_stats(void);
 void f2fs_destroy_root_stats(void);
 #else
 #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_total_hit(sb)
+#define stat_inc_read_hit(sb)
+#define stat_inc_seg_type(sbi, curseg)
+#define stat_inc_block_count(sbi, curseg)
 #define stat_inc_seg_count(si, type)
 #define stat_inc_tot_blk_count(si, blks)
 #define stat_inc_data_blk_count(si, blks)