diff options
Diffstat (limited to 'fs/ext4/fast_commit.c')
| -rw-r--r-- | fs/ext4/fast_commit.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c index 426c0ab8b70c..447c8d93f480 100644 --- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -2093,6 +2093,40 @@ void ext4_fc_init(struct super_block *sb, journal_t *journal) } } +const char *fc_ineligible_reasons[] = { + "Extended attributes changed", + "Cross rename", + "Journal flag changed", + "Insufficient memory", + "Swap boot", + "Resize", + "Dir renamed", + "Falloc range op", + "FC Commit Failed" +}; + +int ext4_fc_info_show(struct seq_file *seq, void *v) +{ + struct ext4_sb_info *sbi = EXT4_SB((struct super_block *)seq->private); + struct ext4_fc_stats *stats = &sbi->s_fc_stats; + int i; + + if (v != SEQ_START_TOKEN) + return 0; + + seq_printf(seq, + "fc stats:\n%ld commits\n%ld ineligible\n%ld numblks\n%lluus avg_commit_time\n", + stats->fc_num_commits, stats->fc_ineligible_commits, + stats->fc_numblks, + div_u64(sbi->s_fc_avg_commit_time, 1000)); + seq_puts(seq, "Ineligible reasons:\n"); + for (i = 0; i < EXT4_FC_REASON_MAX; i++) + seq_printf(seq, "\"%s\":\t%d\n", fc_ineligible_reasons[i], + stats->fc_ineligible_reason_count[i]); + + return 0; +} + int __init ext4_fc_init_dentry_cache(void) { ext4_fc_dentry_cachep = KMEM_CACHE(ext4_fc_dentry_update, |