#include "gc.h"
static LIST_HEAD(f2fs_stat_list);
-static struct dentry *f2fs_debugfs_root;
static DEFINE_MUTEX(f2fs_stat_mutex);
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *f2fs_debugfs_root;
+#endif
+
+/*
+ * This function calculates BDF of every segments
+ */
+void f2fs_update_sit_info(struct f2fs_sb_info *sbi)
+{
+ struct f2fs_stat_info *si = F2FS_STAT(sbi);
+ unsigned long long blks_per_sec, hblks_per_sec, total_vblocks;
+ unsigned long long bimodal, dist;
+ unsigned int segno, vblocks;
+ int ndirty = 0;
+
+ bimodal = 0;
+ total_vblocks = 0;
+ blks_per_sec = BLKS_PER_SEC(sbi);
+ hblks_per_sec = blks_per_sec / 2;
+ for (segno = 0; segno < MAIN_SEGS(sbi); segno += sbi->segs_per_sec) {
+ vblocks = get_valid_blocks(sbi, segno, true);
+ dist = abs(vblocks - hblks_per_sec);
+ bimodal += dist * dist;
+
+ if (vblocks > 0 && vblocks < blks_per_sec) {
+ total_vblocks += vblocks;
+ ndirty++;
+ }
+ }
+ dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100);
+ si->bimodal = div64_u64(bimodal, dist);
+ if (si->dirty_count)
+ si->avg_vblocks = div_u64(total_vblocks, ndirty);
+ else
+ si->avg_vblocks = 0;
+}
+#ifdef CONFIG_DEBUG_FS
static void update_general_status(struct f2fs_sb_info *sbi)
{
struct f2fs_stat_info *si = F2FS_STAT(sbi);
si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID];
si->avail_nids = NM_I(sbi)->available_nids;
si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
- si->bg_gc = sbi->bg_gc;
si->io_skip_bggc = sbi->io_skip_bggc;
si->other_skip_bggc = sbi->other_skip_bggc;
si->skipped_atomic_files[BG_GC] = sbi->skipped_atomic_files[BG_GC];
si->inplace_count = atomic_read(&sbi->inplace_count);
}
-/*
- * This function calculates BDF of every segments
- */
-static void update_sit_info(struct f2fs_sb_info *sbi)
-{
- struct f2fs_stat_info *si = F2FS_STAT(sbi);
- unsigned long long blks_per_sec, hblks_per_sec, total_vblocks;
- unsigned long long bimodal, dist;
- unsigned int segno, vblocks;
- int ndirty = 0;
-
- bimodal = 0;
- total_vblocks = 0;
- blks_per_sec = BLKS_PER_SEC(sbi);
- hblks_per_sec = blks_per_sec / 2;
- for (segno = 0; segno < MAIN_SEGS(sbi); segno += sbi->segs_per_sec) {
- vblocks = get_valid_blocks(sbi, segno, true);
- dist = abs(vblocks - hblks_per_sec);
- bimodal += dist * dist;
-
- if (vblocks > 0 && vblocks < blks_per_sec) {
- total_vblocks += vblocks;
- ndirty++;
- }
- }
- dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100);
- si->bimodal = div64_u64(bimodal, dist);
- if (si->dirty_count)
- si->avg_vblocks = div_u64(total_vblocks, ndirty);
- else
- si->avg_vblocks = 0;
-}
-
/*
* This function calculates memory footprint.
*/
si->block_count[LFS], si->segment_count[LFS]);
/* segment usage info */
- update_sit_info(si->sbi);
+ f2fs_update_sit_info(si->sbi);
seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n",
si->bimodal, si->avg_vblocks);
}
DEFINE_SHOW_ATTRIBUTE(stat);
+#endif
int f2fs_build_stats(struct f2fs_sb_info *sbi)
{
void __init f2fs_create_root_stats(void)
{
+#ifdef CONFIG_DEBUG_FS
f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root, NULL,
&stat_fops);
+#endif
}
void f2fs_destroy_root_stats(void)
{
+#ifdef CONFIG_DEBUG_FS
debugfs_remove_recursive(f2fs_debugfs_root);
f2fs_debugfs_root = NULL;
+#endif
}
atomic_t vw_cnt; /* # of volatile writes */
atomic_t max_aw_cnt; /* max # of atomic writes */
atomic_t max_vw_cnt; /* max # of volatile writes */
- int bg_gc; /* background gc calls */
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 */
#define stat_inc_cp_count(si) ((si)->cp_count++)
#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
#define stat_inc_call_count(si) ((si)->call_count++)
-#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
+#define stat_inc_bggc_count(si) ((si)->bg_gc++)
#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_stats(struct f2fs_sb_info *sbi);
void __init f2fs_create_root_stats(void);
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_other_skip_bggc_count(sbi) do { } while (0)
#define stat_inc_dirty_inode(sbi, type) do { } while (0)
#define stat_dec_dirty_inode(sbi, type) do { } while (0)
-#define stat_inc_total_hit(sb) do { } while (0)
-#define stat_inc_rbtree_node_hit(sb) do { } while (0)
+#define stat_inc_total_hit(sbi) do { } while (0)
+#define stat_inc_rbtree_node_hit(sbi) do { } while (0)
#define stat_inc_largest_node_hit(sbi) do { } while (0)
#define stat_inc_cached_node_hit(sbi) do { } while (0)
#define stat_inc_inline_xattr(inode) do { } while (0)
static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
static inline void __init f2fs_create_root_stats(void) { }
static inline void f2fs_destroy_root_stats(void) { }
+static inline void update_sit_info(struct f2fs_sb_info *sbi) {}
#endif
extern const struct file_operations f2fs_dir_operations;
DCC_INFO, /* struct discard_cmd_control */
NM_INFO, /* struct f2fs_nm_info */
F2FS_SBI, /* struct f2fs_sb_info */
+#ifdef CONFIG_F2FS_STAT_FS
+ STAT_INFO, /* struct f2fs_stat_info */
+#endif
#ifdef CONFIG_F2FS_FAULT_INJECTION
FAULT_INFO_RATE, /* struct f2fs_fault_info */
FAULT_INFO_TYPE, /* struct f2fs_fault_info */
int id;
};
+static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf);
+
static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
{
if (struct_type == GC_THREAD)
else if (struct_type == FAULT_INFO_RATE ||
struct_type == FAULT_INFO_TYPE)
return (unsigned char *)&F2FS_OPTION(sbi).fault_info;
+#endif
+#ifdef CONFIG_F2FS_STAT_FS
+ else if (struct_type == STAT_INFO)
+ return (unsigned char *)F2FS_STAT(sbi);
#endif
return NULL;
}
static ssize_t dirty_segments_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%llu\n",
- (unsigned long long)(dirty_segments(sbi)));
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(dirty_segments(sbi)));
}
-static ssize_t unusable_show(struct f2fs_attr *a,
+static ssize_t free_segments_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
- block_t unusable;
-
- if (test_opt(sbi, DISABLE_CHECKPOINT))
- unusable = sbi->unusable_block_count;
- else
- unusable = f2fs_get_unusable_blocks(sbi);
- return snprintf(buf, PAGE_SIZE, "%llu\n",
- (unsigned long long)unusable);
-}
-
-static ssize_t encoding_show(struct f2fs_attr *a,
- struct f2fs_sb_info *sbi, char *buf)
-{
-#ifdef CONFIG_UNICODE
- if (f2fs_sb_has_casefold(sbi))
- return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
- sbi->s_encoding->charset,
- (sbi->s_encoding->version >> 16) & 0xff,
- (sbi->s_encoding->version >> 8) & 0xff,
- sbi->s_encoding->version & 0xff);
-#endif
- return snprintf(buf, PAGE_SIZE, "(none)");
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(free_segments(sbi)));
}
static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
struct super_block *sb = sbi->sb;
if (!sb->s_bdev->bd_part)
- return snprintf(buf, PAGE_SIZE, "0\n");
+ return sprintf(buf, "0\n");
- return snprintf(buf, PAGE_SIZE, "%llu\n",
- (unsigned long long)(sbi->kbytes_written +
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(sbi->kbytes_written +
BD_PART_WRITTEN(sbi)));
}
int len = 0;
if (!sb->s_bdev->bd_part)
- return snprintf(buf, PAGE_SIZE, "0\n");
+ return sprintf(buf, "0\n");
if (f2fs_sb_has_encrypt(sbi))
len += snprintf(buf, PAGE_SIZE - len, "%s",
static ssize_t current_reserved_blocks_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%u\n", sbi->current_reserved_blocks);
+ return sprintf(buf, "%u\n", sbi->current_reserved_blocks);
+}
+
+static ssize_t unusable_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ block_t unusable;
+
+ if (test_opt(sbi, DISABLE_CHECKPOINT))
+ unusable = sbi->unusable_block_count;
+ else
+ unusable = f2fs_get_unusable_blocks(sbi);
+ return sprintf(buf, "%llu\n", (unsigned long long)unusable);
}
+static ssize_t encoding_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+#ifdef CONFIG_UNICODE
+ if (f2fs_sb_has_casefold(sbi))
+ return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
+ sbi->s_encoding->charset,
+ (sbi->s_encoding->version >> 16) & 0xff,
+ (sbi->s_encoding->version >> 8) & 0xff,
+ sbi->s_encoding->version & 0xff);
+#endif
+ return sprintf(buf, "(none)");
+}
+
+#ifdef CONFIG_F2FS_STAT_FS
+static ssize_t moved_blocks_foreground_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ struct f2fs_stat_info *si = F2FS_STAT(sbi);
+
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(si->tot_blks -
+ (si->bg_data_blks + si->bg_node_blks)));
+}
+
+static ssize_t moved_blocks_background_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ struct f2fs_stat_info *si = F2FS_STAT(sbi);
+
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(si->bg_data_blks + si->bg_node_blks));
+}
+
+static ssize_t avg_vblocks_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ struct f2fs_stat_info *si = F2FS_STAT(sbi);
+
+ si->dirty_count = dirty_segments(sbi);
+ f2fs_update_sit_info(sbi);
+ return sprintf(buf, "%llu\n", (unsigned long long)(si->avg_vblocks));
+}
+#endif
+
static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
ui = (unsigned int *)(ptr + a->offset);
- return snprintf(buf, PAGE_SIZE, "%u\n", *ui);
+ return sprintf(buf, "%u\n", *ui);
}
static ssize_t __sbi_store(struct f2fs_attr *a,
case FEAT_SB_CHECKSUM:
case FEAT_CASEFOLD:
case FEAT_COMPRESSION:
- return snprintf(buf, PAGE_SIZE, "supported\n");
+ return sprintf(buf, "supported\n");
}
return 0;
}
.id = _id, \
}
+#define F2FS_STAT_ATTR(_struct_type, _struct_name, _name, _elname) \
+static struct f2fs_attr f2fs_attr_##_name = { \
+ .attr = {.name = __stringify(_name), .mode = 0444 }, \
+ .show = f2fs_sbi_show, \
+ .struct_type = _struct_type, \
+ .offset = offsetof(struct _struct_name, _elname), \
+}
+
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
urgent_sleep_time);
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
#endif
F2FS_GENERAL_RO_ATTR(dirty_segments);
+F2FS_GENERAL_RO_ATTR(free_segments);
F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
F2FS_GENERAL_RO_ATTR(features);
F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
F2FS_GENERAL_RO_ATTR(unusable);
F2FS_GENERAL_RO_ATTR(encoding);
+#ifdef CONFIG_F2FS_STAT_FS
+F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
+F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
+F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_foreground_calls, call_count);
+F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_background_calls, bg_gc);
+F2FS_GENERAL_RO_ATTR(moved_blocks_background);
+F2FS_GENERAL_RO_ATTR(moved_blocks_foreground);
+F2FS_GENERAL_RO_ATTR(avg_vblocks);
+#endif
#ifdef CONFIG_FS_ENCRYPTION
F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO);
ATTR_LIST(inject_type),
#endif
ATTR_LIST(dirty_segments),
+ ATTR_LIST(free_segments),
ATTR_LIST(unusable),
ATTR_LIST(lifetime_write_kbytes),
ATTR_LIST(features),
ATTR_LIST(reserved_blocks),
ATTR_LIST(current_reserved_blocks),
ATTR_LIST(encoding),
+#ifdef CONFIG_F2FS_STAT_FS
+ ATTR_LIST(cp_foreground_calls),
+ ATTR_LIST(cp_background_calls),
+ ATTR_LIST(gc_foreground_calls),
+ ATTR_LIST(gc_background_calls),
+ ATTR_LIST(moved_blocks_foreground),
+ ATTR_LIST(moved_blocks_background),
+ ATTR_LIST(avg_vblocks),
+#endif
NULL,
};
ATTRIBUTE_GROUPS(f2fs);
projects / linux.git / commitdiff