diff options
Diffstat (limited to 'fs/btrfs/transaction.c')
| -rw-r--r-- | fs/btrfs/transaction.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 875b801ab3d7..c07bead4f0e4 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -10,6 +10,7 @@ #include <linux/pagemap.h> #include <linux/blkdev.h> #include <linux/uuid.h> +#include <linux/timekeeping.h> #include "misc.h" #include "ctree.h" #include "disk-io.h" @@ -2098,12 +2099,23 @@ static void add_pending_snapshot(struct btrfs_trans_handle *trans) list_add(&trans->pending_snapshot->list, &cur_trans->pending_snapshots); } +static void update_commit_stats(struct btrfs_fs_info *fs_info, ktime_t interval) +{ + fs_info->commit_stats.commit_count++; + fs_info->commit_stats.last_commit_dur = interval; + fs_info->commit_stats.max_commit_dur = + max_t(u64, fs_info->commit_stats.max_commit_dur, interval); + fs_info->commit_stats.total_commit_dur += interval; +} + int btrfs_commit_transaction(struct btrfs_trans_handle *trans) { struct btrfs_fs_info *fs_info = trans->fs_info; struct btrfs_transaction *cur_trans = trans->transaction; struct btrfs_transaction *prev_trans = NULL; int ret; + ktime_t start_time; + ktime_t interval; ASSERT(refcount_read(&trans->use_count) == 1); @@ -2228,6 +2240,12 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans) } } + /* + * Get the time spent on the work done by the commit thread and not + * the time spent waiting on a previous commit + */ + start_time = ktime_get_ns(); + extwriter_counter_dec(cur_trans, trans->type); ret = btrfs_start_delalloc_flush(fs_info); @@ -2469,6 +2487,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans) trace_btrfs_transaction_commit(fs_info); + interval = ktime_get_ns() - start_time; + btrfs_scrub_continue(fs_info); if (current->journal_info == trans) @@ -2476,6 +2496,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans) kmem_cache_free(btrfs_trans_handle_cachep, trans); + update_commit_stats(fs_info, interval); + return ret; unlock_reloc: |