diff options
| -rw-r--r-- | fs/btrfs/extent-tree.c | 9 | ||||
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 12 | ||||
| -rw-r--r-- | include/trace/events/btrfs.h | 173 |
3 files changed, 193 insertions, 1 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a44072a692a..ad1a20bc834 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5256,6 +5256,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, ins->objectid = 0; ins->offset = 0; + trace_find_free_extent(orig_root, num_bytes, empty_size, data); + space_info = __find_space_info(root->fs_info, data); if (!space_info) { printk(KERN_ERR "No space info for %llu\n", data); @@ -5432,6 +5434,8 @@ alloc: if (offset) { /* we have a block, we're done */ spin_unlock(&last_ptr->refill_lock); + trace_btrfs_reserve_extent_cluster(root, + block_group, search_start, num_bytes); goto checks; } @@ -5490,6 +5494,9 @@ refill_cluster: if (offset) { /* we found one, proceed */ spin_unlock(&last_ptr->refill_lock); + trace_btrfs_reserve_extent_cluster(root, + block_group, search_start, + num_bytes); goto checks; } } else if (!cached && loop > LOOP_CACHING_NOWAIT @@ -5576,6 +5583,8 @@ checks: ins->objectid = search_start; ins->offset = num_bytes; + trace_btrfs_reserve_extent(orig_root, block_group, + search_start, num_bytes); if (offset < search_start) btrfs_add_free_space(used_block_group, offset, search_start - offset); diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 6c7887a7770..efe20032e4a 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -2346,6 +2346,8 @@ again: &entry->offset_index, 1); BUG_ON(ret); + trace_btrfs_setup_cluster(block_group, cluster, + total_found * block_group->sectorsize, 1); return 0; } @@ -2368,6 +2370,7 @@ setup_cluster_no_bitmap(struct btrfs_block_group_cache *block_group, u64 window_start; u64 window_free; u64 max_extent; + u64 total_size = 0; entry = tree_search_offset(ctl, offset, 0, 1); if (!entry) @@ -2433,11 +2436,12 @@ setup_cluster_no_bitmap(struct btrfs_block_group_cache *block_group, rb_erase(&entry->offset_index, &ctl->free_space_offset); ret = tree_insert_offset(&cluster->root, entry->offset, &entry->offset_index, 0); + total_size += entry->bytes; BUG_ON(ret); } while (node && entry != last); cluster->max_size = max_extent; - + trace_btrfs_setup_cluster(block_group, cluster, total_size, 0); return 0; } @@ -2542,6 +2546,10 @@ int btrfs_find_space_cluster(struct btrfs_trans_handle *trans, goto out; } + trace_btrfs_find_cluster(block_group, offset, bytes, empty_size, + min_bytes); + + INIT_LIST_HEAD(&bitmaps); ret = setup_cluster_no_bitmap(block_group, cluster, &bitmaps, offset, bytes + empty_size, cont1_bytes, min_bytes); @@ -2559,6 +2567,8 @@ int btrfs_find_space_cluster(struct btrfs_trans_handle *trans, list_add_tail(&cluster->block_group_list, &block_group->cluster_list); cluster->block_group = block_group; + } else { + trace_btrfs_failed_cluster_setup(block_group); } out: spin_unlock(&cluster->lock); diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h index b31702ac15b..1750c0e6660 100644 --- a/include/trace/events/btrfs.h +++ b/include/trace/events/btrfs.h @@ -16,6 +16,8 @@ struct btrfs_delayed_ref_node; struct btrfs_delayed_tree_ref; struct btrfs_delayed_data_ref; struct btrfs_delayed_ref_head; +struct btrfs_block_group_cache; +struct btrfs_free_cluster; struct map_lookup; struct extent_buffer; @@ -44,6 +46,15 @@ struct extent_buffer; obj, ((obj >= BTRFS_DATA_RELOC_TREE_OBJECTID) || \ (obj <= BTRFS_CSUM_TREE_OBJECTID )) ? __show_root_type(obj) : "-" +#define BTRFS_GROUP_FLAGS \ + { BTRFS_BLOCK_GROUP_DATA, "DATA"}, \ + { BTRFS_BLOCK_GROUP_SYSTEM, "SYSTEM"}, \ + { BTRFS_BLOCK_GROUP_METADATA, "METADATA"}, \ + { BTRFS_BLOCK_GROUP_RAID0, "RAID0"}, \ + { BTRFS_BLOCK_GROUP_RAID1, "RAID1"}, \ + { BTRFS_BLOCK_GROUP_DUP, "DUP"}, \ + { BTRFS_BLOCK_GROUP_RAID10, "RAID10"} + TRACE_EVENT(btrfs_transaction_commit, TP_PROTO(struct btrfs_root *root), @@ -659,6 +670,168 @@ DEFINE_EVENT(btrfs__reserved_extent, btrfs_reserved_extent_free, TP_ARGS(root, start, len) ); +TRACE_EVENT(find_free_extent, + + TP_PROTO(struct btrfs_root *root, u64 num_bytes, u64 empty_size, + u64 data), + + TP_ARGS(root, num_bytes, empty_size, data), + + TP_STRUCT__entry( + __field( u64, root_objectid ) + __field( u64, num_bytes ) + __field( u64, empty_size ) + __field( u64, data ) + ), + + TP_fast_assign( + __entry->root_objectid = root->root_key.objectid; + __entry->num_bytes = num_bytes; + __entry->empty_size = empty_size; + __entry->data = data; + ), + + TP_printk("root = %Lu(%s), len = %Lu, empty_size = %Lu, " + "flags = %Lu(%s)", show_root_type(__entry->root_objectid), + __entry->num_bytes, __entry->empty_size, __entry->data, + __print_flags((unsigned long)__entry->data, "|", + BTRFS_GROUP_FLAGS)) +); + +DECLARE_EVENT_CLASS(btrfs__reserve_extent, + + TP_PROTO(struct btrfs_root *root, + struct btrfs_block_group_cache *block_group, u64 start, + u64 len), + + TP_ARGS(root, block_group, start, len), + + TP_STRUCT__entry( + __field( u64, root_objectid ) + __field( u64, bg_objectid ) + __field( u64, flags ) + __field( u64, start ) + __field( u64, len ) + ), + + TP_fast_assign( + __entry->root_objectid = root->root_key.objectid; + __entry->bg_objectid = block_group->key.objectid; + __entry->flags = block_group->flags; + __entry->start = start; + __entry->len = len; + ), + + TP_printk("root = %Lu(%s), block_group = %Lu, flags = %Lu(%s), " + "start = %Lu, len = %Lu", + show_root_type(__entry->root_objectid), __entry->bg_objectid, + __entry->flags, __print_flags((unsigned long)__entry->flags, + "|", BTRFS_GROUP_FLAGS), + __entry->start, __entry->len) +); + +DEFINE_EVENT(btrfs__reserve_extent, btrfs_reserve_extent, + + TP_PROTO(struct btrfs_root *root, + struct btrfs_block_group_cache *block_group, u64 start, + u64 len), + + TP_ARGS(root, block_group, start, len) +); + +DEFINE_EVENT(btrfs__reserve_extent, btrfs_reserve_extent_cluster, + + TP_PROTO(struct btrfs_root *root, + struct btrfs_block_group_cache *block_group, u64 start, + u64 len), + + TP_ARGS(root, block_group, start, len) +); + +TRACE_EVENT(btrfs_find_cluster, + + TP_PROTO(struct btrfs_block_group_cache *block_group, u64 start, + u64 bytes, u64 empty_size, u64 min_bytes), + + TP_ARGS(block_group, start, bytes, empty_size, min_bytes), + + TP_STRUCT__entry( + __field( u64, bg_objectid ) + __field( u64, flags ) + __field( u64, start ) + __field( u64, bytes ) + __field( u64, empty_size ) + __field( u64, min_bytes ) + ), + + TP_fast_assign( + __entry->bg_objectid = block_group->key.objectid; + __entry->flags = block_group->flags; + __entry->start = start; + __entry->bytes = bytes; + __entry->empty_size = empty_size; + __entry->min_bytes = min_bytes; + ), + + TP_printk("block_group = %Lu, flags = %Lu(%s), start = %Lu, len = %Lu," + " empty_size = %Lu, min_bytes = %Lu", __entry->bg_objectid, + __entry->flags, + __print_flags((unsigned long)__entry->flags, "|", + BTRFS_GROUP_FLAGS), __entry->start, + __entry->bytes, __entry->empty_size, __entry->min_bytes) +); + +TRACE_EVENT(btrfs_failed_cluster_setup, + + TP_PROTO(struct btrfs_block_group_cache *block_group), + + TP_ARGS(block_group), + + TP_STRUCT__entry( + __field( u64, bg_objectid ) + ), + + TP_fast_assign( + __entry->bg_objectid = block_group->key.objectid; + ), + + TP_printk("block_group = %Lu", __entry->bg_objectid) +); + +TRACE_EVENT(btrfs_setup_cluster, + + TP_PROTO(struct btrfs_block_group_cache *block_group, + struct btrfs_free_cluster *cluster, u64 size, int bitmap), + + TP_ARGS(block_group, cluster, size, bitmap), + + TP_STRUCT__entry( + __field( u64, bg_objectid ) + __field( u64, flags ) + __field( u64, start ) + __field( u64, max_size ) + __field( u64, size ) + __field( int, bitmap ) + ), + + TP_fast_assign( + __entry->bg_objectid = block_group->key.objectid; + __entry->flags = block_group->flags; + __entry->start = cluster->window_start; + __entry->max_size = cluster->max_size; + __entry->size = size; + __entry->bitmap = bitmap; + ), + + TP_printk("block_group = %Lu, flags = %Lu(%s), window_start = %Lu, " + "size = %Lu, max_size = %Lu, bitmap = %d", + __entry->bg_objectid, + __entry->flags, + __print_flags((unsigned long)__entry->flags, "|", + BTRFS_GROUP_FLAGS), __entry->start, + __entry->size, __entry->max_size, __entry->bitmap) +); + #endif /* _TRACE_BTRFS_H */ /* This part must be outside protection */ |