}
f2fs_restore_inmem_curseg(sbi);
+ stat_inc_cp_count(sbi);
stop:
unblock_operations(sbi);
- stat_inc_cp_count(sbi->stat_info);
if (cpc->reason & CP_RECOVERY)
f2fs_notice(sbi, "checkpoint: version = %llx", ckpt_ver);
si->valid_blks[type] += blks;
}
+ for (i = 0; i < MAX_CALL_TYPE; i++)
+ si->cp_call_count[i] = atomic_read(&sbi->cp_call_count[i]);
+
for (i = 0; i < 2; i++) {
si->segment_count[i] = sbi->segment_count[i];
si->block_count[i] = sbi->block_count[i];
seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n",
si->prefree_count, si->free_segs, si->free_secs);
seq_printf(s, "CP calls: %d (BG: %d)\n",
- si->cp_count, si->bg_cp_count);
+ si->cp_call_count[TOTAL_CALL],
+ si->cp_call_count[BACKGROUND]);
+ seq_printf(s, "CP count: %d\n", si->cp_count);
seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]);
seq_printf(s, " - sit blocks : %u\n",
si->meta_count[META_SIT]);
atomic_set(&sbi->inplace_count, 0);
for (i = META_CP; i < META_MAX; i++)
atomic_set(&sbi->meta_count[i], 0);
+ for (i = 0; i < MAX_CALL_TYPE; i++)
+ atomic_set(&sbi->cp_call_count[i], 0);
atomic_set(&sbi->max_aw_cnt, 0);
MOUNT_ERRORS_PANIC, /* panic on errors */
};
+enum {
+ BACKGROUND,
+ FOREGROUND,
+ MAX_CALL_TYPE,
+ TOTAL_CALL = FOREGROUND,
+};
+
static inline int f2fs_test_bit(unsigned int nr, char *addr);
static inline void f2fs_set_bit(unsigned int nr, char *addr);
static inline void f2fs_clear_bit(unsigned int nr, char *addr);
unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
unsigned int other_skip_bggc; /* skip background gc for other reasons */
unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
+ atomic_t cp_call_count[MAX_CALL_TYPE]; /* # of cp call */
#endif
spinlock_t stat_lock; /* lock for stat operations */
/*
* debug.c
*/
-enum {
- BACKGROUND,
- FOREGROUND,
- MAX_CALL_TYPE
-};
-
#ifdef CONFIG_F2FS_STAT_FS
struct f2fs_stat_info {
struct list_head stat_list;
int dirty_count, node_pages, meta_pages, compress_pages;
int compress_page_hit;
int prefree_count, free_segs, free_secs;
- int cp_count, bg_cp_count;
+ int cp_call_count[MAX_CALL_TYPE], cp_count;
int gc_call_count[MAX_CALL_TYPE];
int gc_segs[2][2];
int gc_secs[2][2];
return (struct f2fs_stat_info *)sbi->stat_info;
}
-#define stat_inc_cp_count(si) ((si)->cp_count++)
-#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
+#define stat_inc_cp_call_count(sbi, foreground) \
+ atomic_inc(&sbi->cp_call_count[(foreground)])
+#define stat_inc_cp_count(si) (F2FS_STAT(sbi)->cp_count++)
#define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
#define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
void f2fs_destroy_root_stats(void);
void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
#else
-#define stat_inc_cp_count(si) do { } while (0)
-#define stat_inc_bg_cp_count(si) do { } while (0)
+#define stat_inc_cp_call_count(sbi, foreground) do { } while (0)
+#define stat_inc_cp_count(sbi) do { } while (0)
#define stat_io_skip_bggc_count(sbi) do { } while (0)
#define stat_other_skip_bggc_count(sbi) do { } while (0)
#define stat_inc_dirty_inode(sbi, type) do { } while (0)
* secure free segments which doesn't need fggc any more.
*/
if (prefree_segments(sbi)) {
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
ret = f2fs_write_checkpoint(sbi, &cpc);
if (ret)
goto stop;
round++;
if (skipped_round > MAX_SKIP_GC_COUNT &&
skipped_round * 2 >= round) {
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
ret = f2fs_write_checkpoint(sbi, &cpc);
goto stop;
}
*/
if (free_sections(sbi) <= upper_secs + NR_GC_CHECKPOINT_SECS &&
prefree_segments(sbi)) {
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
ret = f2fs_write_checkpoint(sbi, &cpc);
if (ret)
goto stop;
if (gc_only)
goto out;
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
err = f2fs_write_checkpoint(sbi, &cpc);
if (err)
goto out;
clear_sbi_flag(sbi, SBI_IS_RESIZEFS);
set_sbi_flag(sbi, SBI_IS_DIRTY);
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
err = f2fs_write_checkpoint(sbi, &cpc);
if (err) {
update_fs_metadata(sbi, secs);
struct cp_control cpc = {
.reason = CP_RECOVERY,
};
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
err = f2fs_write_checkpoint(sbi, &cpc);
}
}
mutex_unlock(&sbi->flush_lock);
}
+ stat_inc_cp_call_count(sbi, BACKGROUND);
f2fs_sync_fs(sbi->sb, 1);
- stat_inc_bg_cp_count(sbi->stat_info);
}
static int __submit_flush_wait(struct f2fs_sb_info *sbi,
goto out;
f2fs_down_write(&sbi->gc_lock);
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
err = f2fs_write_checkpoint(sbi, &cpc);
f2fs_up_write(&sbi->gc_lock);
if (err)
struct cp_control cpc = {
.reason = CP_UMOUNT,
};
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
err = f2fs_write_checkpoint(sbi, &cpc);
}
struct cp_control cpc = {
.reason = CP_UMOUNT | CP_TRIMMED,
};
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
err = f2fs_write_checkpoint(sbi, &cpc);
}
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
return -EAGAIN;
- if (sync)
+ if (sync) {
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
err = f2fs_issue_checkpoint(sbi);
+ }
return err;
}
f2fs_down_write(&sbi->gc_lock);
cpc.reason = CP_PAUSE;
set_sbi_flag(sbi, SBI_CP_DISABLED);
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
err = f2fs_write_checkpoint(sbi, &cpc);
if (err)
goto out_unlock;
struct cp_control cpc = {
.reason = CP_UMOUNT,
};
+ stat_inc_cp_call_count(sbi, TOTAL_CALL);
f2fs_write_checkpoint(sbi, &cpc);
}
if (!strcmp(a->attr.name, "revoked_atomic_block"))
return sysfs_emit(buf, "%llu\n", sbi->revoked_atomic_block);
+#ifdef CONFIG_F2FS_STAT_FS
+ if (!strcmp(a->attr.name, "cp_foreground_calls"))
+ return sysfs_emit(buf, "%d\n",
+ atomic_read(&sbi->cp_call_count[TOTAL_CALL]) -
+ atomic_read(&sbi->cp_call_count[BACKGROUND]));
+ if (!strcmp(a->attr.name, "cp_background_calls"))
+ return sysfs_emit(buf, "%d\n",
+ atomic_read(&sbi->cp_call_count[BACKGROUND]));
+#endif
+
ui = (unsigned int *)(ptr + a->offset);
return sysfs_emit(buf, "%u\n", *ui);
/* STAT_INFO ATTR */
#ifdef CONFIG_F2FS_STAT_FS
-STAT_INFO_RO_ATTR(cp_foreground_calls, cp_count);
-STAT_INFO_RO_ATTR(cp_background_calls, bg_cp_count);
+STAT_INFO_RO_ATTR(cp_foreground_calls, cp_call_count[FOREGROUND]);
+STAT_INFO_RO_ATTR(cp_background_calls, cp_call_count[BACKGROUND]);
STAT_INFO_RO_ATTR(gc_foreground_calls, gc_call_count[FOREGROUND]);
STAT_INFO_RO_ATTR(gc_background_calls, gc_call_count[BACKGROUND]);
#endif