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Btrfs: add initial tracepoint support for btrfs
Tracepoints can provide insight into why btrfs hits bugs and be greatly
helpful for debugging, e.g
dd-7822 [000] 2121.641088: btrfs_inode_request: root = 5(FS_TREE), gen = 4, ino = 256, blocks = 8, disk_i_size = 0, last_trans = 8, logged_trans = 0
dd-7822 [000] 2121.641100: btrfs_inode_new: root = 5(FS_TREE), gen = 8, ino = 257, blocks = 0, disk_i_size = 0, last_trans = 0, logged_trans = 0
btrfs-transacti-7804 [001] 2146.935420: btrfs_cow_block: root = 2(EXTENT_TREE), refs = 2, orig_buf = 29368320 (orig_level = 0), cow_buf = 29388800 (cow_level = 0)
btrfs-transacti-7804 [001] 2146.935473: btrfs_cow_block: root = 1(ROOT_TREE), refs = 2, orig_buf = 29364224 (orig_level = 0), cow_buf = 29392896 (cow_level = 0)
btrfs-transacti-7804 [001] 2146.972221: btrfs_transaction_commit: root = 1(ROOT_TREE), gen = 8
flush-btrfs-2-7821 [001] 2155.824210: btrfs_chunk_alloc: root = 3(CHUNK_TREE), offset = 1103101952, size = 1073741824, num_stripes = 1, sub_stripes = 0, type = DATA
flush-btrfs-2-7821 [001] 2155.824241: btrfs_cow_block: root = 2(EXTENT_TREE), refs = 2, orig_buf = 29388800 (orig_level = 0), cow_buf = 29396992 (cow_level = 0)
flush-btrfs-2-7821 [001] 2155.824255: btrfs_cow_block: root = 4(DEV_TREE), refs = 2, orig_buf = 29372416 (orig_level = 0), cow_buf = 29401088 (cow_level = 0)
flush-btrfs-2-7821 [000] 2155.824329: btrfs_cow_block: root = 3(CHUNK_TREE), refs = 2, orig_buf = 20971520 (orig_level = 0), cow_buf = 20975616 (cow_level = 0)
btrfs-endio-wri-7800 [001] 2155.898019: btrfs_cow_block: root = 5(FS_TREE), refs = 2, orig_buf = 29384704 (orig_level = 0), cow_buf = 29405184 (cow_level = 0)
btrfs-endio-wri-7800 [001] 2155.898043: btrfs_cow_block: root = 7(CSUM_TREE), refs = 2, orig_buf = 29376512 (orig_level = 0), cow_buf = 29409280 (cow_level = 0)
Here is what I have added:
1) ordere_extent:
btrfs_ordered_extent_add
btrfs_ordered_extent_remove
btrfs_ordered_extent_start
btrfs_ordered_extent_put
These provide critical information to understand how ordered_extents are
updated.
2) extent_map:
btrfs_get_extent
extent_map is used in both read and write cases, and it is useful for tracking
how btrfs specific IO is running.
3) writepage:
__extent_writepage
btrfs_writepage_end_io_hook
Pages are cirtical resourses and produce a lot of corner cases during writeback,
so it is valuable to know how page is written to disk.
4) inode:
btrfs_inode_new
btrfs_inode_request
btrfs_inode_evict
These can show where and when a inode is created, when a inode is evicted.
5) sync:
btrfs_sync_file
btrfs_sync_fs
These show sync arguments.
6) transaction:
btrfs_transaction_commit
In transaction based filesystem, it will be useful to know the generation and
who does commit.
7) back reference and cow:
btrfs_delayed_tree_ref
btrfs_delayed_data_ref
btrfs_delayed_ref_head
btrfs_cow_block
Btrfs natively supports back references, these tracepoints are helpful on
understanding btrfs's COW mechanism.
8) chunk:
btrfs_chunk_alloc
btrfs_chunk_free
Chunk is a link between physical offset and logical offset, and stands for space
infomation in btrfs, and these are helpful on tracing space things.
9) reserved_extent:
btrfs_reserved_extent_alloc
btrfs_reserved_extent_free
These can show how btrfs uses its space.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
liubo
root
parent
240f62c875
commit
1abe9b8a13
@ -535,6 +535,9 @@ noinline int btrfs_cow_block(struct btrfs_trans_handle *trans,
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ret = __btrfs_cow_block(trans, root, buf, parent,
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parent_slot, cow_ret, search_start, 0);
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trace_btrfs_cow_block(root, buf, *cow_ret);
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return ret;
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}
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@ -28,6 +28,7 @@
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#include <linux/wait.h>
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#include <linux/slab.h>
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#include <linux/kobject.h>
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#include <trace/events/btrfs.h>
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#include <asm/kmap_types.h>
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#include "extent_io.h"
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#include "extent_map.h"
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@ -483,6 +483,8 @@ static noinline int add_delayed_ref_head(struct btrfs_trans_handle *trans,
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INIT_LIST_HEAD(&head_ref->cluster);
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mutex_init(&head_ref->mutex);
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trace_btrfs_delayed_ref_head(ref, head_ref, action);
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existing = tree_insert(&delayed_refs->root, &ref->rb_node);
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if (existing) {
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@ -537,6 +539,8 @@ static noinline int add_delayed_tree_ref(struct btrfs_trans_handle *trans,
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}
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full_ref->level = level;
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trace_btrfs_delayed_tree_ref(ref, full_ref, action);
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existing = tree_insert(&delayed_refs->root, &ref->rb_node);
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if (existing) {
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@ -591,6 +595,8 @@ static noinline int add_delayed_data_ref(struct btrfs_trans_handle *trans,
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full_ref->objectid = owner;
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full_ref->offset = offset;
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trace_btrfs_delayed_data_ref(ref, full_ref, action);
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existing = tree_insert(&delayed_refs->root, &ref->rb_node);
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if (existing) {
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@ -5412,6 +5412,8 @@ int btrfs_reserve_extent(struct btrfs_trans_handle *trans,
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dump_space_info(sinfo, num_bytes, 1);
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}
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trace_btrfs_reserved_extent_alloc(root, ins->objectid, ins->offset);
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return ret;
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}
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@ -5433,6 +5435,8 @@ int btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len)
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update_reserved_bytes(cache, len, 0, 1);
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btrfs_put_block_group(cache);
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trace_btrfs_reserved_extent_free(root, start, len);
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return ret;
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}
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@ -2192,6 +2192,8 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
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else
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write_flags = WRITE;
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trace___extent_writepage(page, inode, wbc);
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WARN_ON(!PageLocked(page));
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pg_offset = i_size & (PAGE_CACHE_SIZE - 1);
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if (page->index > end_index ||
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@ -1205,6 +1205,7 @@ int btrfs_sync_file(struct file *file, int datasync)
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int ret = 0;
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struct btrfs_trans_handle *trans;
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trace_btrfs_sync_file(file, datasync);
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/* we wait first, since the writeback may change the inode */
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root->log_batch++;
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@ -1787,6 +1787,8 @@ static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end)
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static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
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struct extent_state *state, int uptodate)
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{
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trace_btrfs_writepage_end_io_hook(page, start, end, uptodate);
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ClearPagePrivate2(page);
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return btrfs_finish_ordered_io(page->mapping->host, start, end);
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}
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@ -3718,6 +3720,8 @@ void btrfs_evict_inode(struct inode *inode)
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unsigned long nr;
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int ret;
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trace_btrfs_inode_evict(inode);
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truncate_inode_pages(&inode->i_data, 0);
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if (inode->i_nlink && (btrfs_root_refs(&root->root_item) != 0 ||
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root == root->fs_info->tree_root))
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@ -4510,6 +4514,8 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
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return ERR_PTR(-ENOMEM);
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if (dir) {
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trace_btrfs_inode_request(dir);
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ret = btrfs_set_inode_index(dir, index);
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if (ret) {
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iput(inode);
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@ -4584,6 +4590,9 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
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insert_inode_hash(inode);
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inode_tree_add(inode);
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trace_btrfs_inode_new(inode);
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return inode;
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fail:
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if (dir)
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@ -5261,6 +5270,9 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
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}
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write_unlock(&em_tree->lock);
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out:
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trace_btrfs_get_extent(root, em);
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if (path)
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btrfs_free_path(path);
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if (trans) {
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@ -202,6 +202,8 @@ static int __btrfs_add_ordered_extent(struct inode *inode, u64 file_offset,
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INIT_LIST_HEAD(&entry->list);
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INIT_LIST_HEAD(&entry->root_extent_list);
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trace_btrfs_ordered_extent_add(inode, entry);
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spin_lock(&tree->lock);
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node = tree_insert(&tree->tree, file_offset,
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&entry->rb_node);
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@ -387,6 +389,8 @@ int btrfs_put_ordered_extent(struct btrfs_ordered_extent *entry)
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struct list_head *cur;
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struct btrfs_ordered_sum *sum;
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trace_btrfs_ordered_extent_put(entry->inode, entry);
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if (atomic_dec_and_test(&entry->refs)) {
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while (!list_empty(&entry->list)) {
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cur = entry->list.next;
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@ -420,6 +424,8 @@ static int __btrfs_remove_ordered_extent(struct inode *inode,
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spin_lock(&root->fs_info->ordered_extent_lock);
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list_del_init(&entry->root_extent_list);
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trace_btrfs_ordered_extent_remove(inode, entry);
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/*
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* we have no more ordered extents for this inode and
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* no dirty pages. We can safely remove it from the
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@ -585,6 +591,8 @@ void btrfs_start_ordered_extent(struct inode *inode,
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u64 start = entry->file_offset;
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u64 end = start + entry->len - 1;
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trace_btrfs_ordered_extent_start(inode, entry);
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/*
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* pages in the range can be dirty, clean or writeback. We
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* start IO on any dirty ones so the wait doesn't stall waiting
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@ -52,6 +52,9 @@
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#include "export.h"
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#include "compression.h"
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#define CREATE_TRACE_POINTS
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#include <trace/events/btrfs.h>
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static const struct super_operations btrfs_super_ops;
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static const char *btrfs_decode_error(struct btrfs_fs_info *fs_info, int errno,
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@ -620,6 +623,8 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
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struct btrfs_root *root = btrfs_sb(sb);
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int ret;
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trace_btrfs_sync_fs(wait);
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if (!wait) {
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filemap_flush(root->fs_info->btree_inode->i_mapping);
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return 0;
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@ -1389,6 +1389,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
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put_transaction(cur_trans);
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put_transaction(cur_trans);
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trace_btrfs_transaction_commit(root);
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mutex_unlock(&root->fs_info->trans_mutex);
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if (current->journal_info == trans)
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@ -33,17 +33,6 @@
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#include "volumes.h"
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#include "async-thread.h"
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struct map_lookup {
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u64 type;
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int io_align;
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int io_width;
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int stripe_len;
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int sector_size;
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int num_stripes;
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int sub_stripes;
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struct btrfs_bio_stripe stripes[];
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};
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static int init_first_rw_device(struct btrfs_trans_handle *trans,
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struct btrfs_root *root,
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struct btrfs_device *device);
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@ -1923,6 +1912,8 @@ static int btrfs_relocate_chunk(struct btrfs_root *root,
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BUG_ON(ret);
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trace_btrfs_chunk_free(root, map, chunk_offset, em->len);
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if (map->type & BTRFS_BLOCK_GROUP_SYSTEM) {
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ret = btrfs_del_sys_chunk(root, chunk_objectid, chunk_offset);
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BUG_ON(ret);
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@ -2650,6 +2641,8 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
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*num_bytes = chunk_bytes_by_type(type, calc_size,
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map->num_stripes, sub_stripes);
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trace_btrfs_chunk_alloc(info->chunk_root, map, start, *num_bytes);
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em = alloc_extent_map(GFP_NOFS);
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if (!em) {
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ret = -ENOMEM;
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@ -2758,6 +2751,7 @@ static int __finish_chunk_alloc(struct btrfs_trans_handle *trans,
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item_size);
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BUG_ON(ret);
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}
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kfree(chunk);
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return 0;
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}
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@ -145,6 +145,17 @@ struct btrfs_device_info {
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u64 max_avail;
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};
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struct map_lookup {
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u64 type;
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int io_align;
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int io_width;
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int stripe_len;
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int sector_size;
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int num_stripes;
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int sub_stripes;
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struct btrfs_bio_stripe stripes[];
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};
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/* Used to sort the devices by max_avail(descending sort) */
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int btrfs_cmp_device_free_bytes(const void *dev_info1, const void *dev_info2);
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667
include/trace/events/btrfs.h
Normal file
667
include/trace/events/btrfs.h
Normal file
@ -0,0 +1,667 @@
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM btrfs
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#if !defined(_TRACE_BTRFS_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_BTRFS_H
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#include <linux/writeback.h>
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#include <linux/tracepoint.h>
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struct btrfs_root;
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struct btrfs_fs_info;
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struct btrfs_inode;
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struct extent_map;
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struct btrfs_ordered_extent;
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struct btrfs_delayed_ref_node;
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struct btrfs_delayed_tree_ref;
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struct btrfs_delayed_data_ref;
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struct btrfs_delayed_ref_head;
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struct map_lookup;
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struct extent_buffer;
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#define show_ref_type(type) \
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__print_symbolic(type, \
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{ BTRFS_TREE_BLOCK_REF_KEY, "TREE_BLOCK_REF" }, \
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{ BTRFS_EXTENT_DATA_REF_KEY, "EXTENT_DATA_REF" }, \
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{ BTRFS_EXTENT_REF_V0_KEY, "EXTENT_REF_V0" }, \
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{ BTRFS_SHARED_BLOCK_REF_KEY, "SHARED_BLOCK_REF" }, \
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{ BTRFS_SHARED_DATA_REF_KEY, "SHARED_DATA_REF" })
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#define __show_root_type(obj) \
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__print_symbolic(obj, \
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{ BTRFS_ROOT_TREE_OBJECTID, "ROOT_TREE" }, \
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{ BTRFS_EXTENT_TREE_OBJECTID, "EXTENT_TREE" }, \
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{ BTRFS_CHUNK_TREE_OBJECTID, "CHUNK_TREE" }, \
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{ BTRFS_DEV_TREE_OBJECTID, "DEV_TREE" }, \
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{ BTRFS_FS_TREE_OBJECTID, "FS_TREE" }, \
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{ BTRFS_ROOT_TREE_DIR_OBJECTID, "ROOT_TREE_DIR" }, \
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{ BTRFS_CSUM_TREE_OBJECTID, "CSUM_TREE" }, \
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{ BTRFS_TREE_LOG_OBJECTID, "TREE_LOG" }, \
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{ BTRFS_TREE_RELOC_OBJECTID, "TREE_RELOC" }, \
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{ BTRFS_DATA_RELOC_TREE_OBJECTID, "DATA_RELOC_TREE" })
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#define show_root_type(obj) \
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obj, ((obj >= BTRFS_DATA_RELOC_TREE_OBJECTID) || \
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(obj <= BTRFS_CSUM_TREE_OBJECTID )) ? __show_root_type(obj) : "-"
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TRACE_EVENT(btrfs_transaction_commit,
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TP_PROTO(struct btrfs_root *root),
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TP_ARGS(root),
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TP_STRUCT__entry(
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__field( u64, generation )
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__field( u64, root_objectid )
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),
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TP_fast_assign(
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__entry->generation = root->fs_info->generation;
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__entry->root_objectid = root->root_key.objectid;
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),
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TP_printk("root = %llu(%s), gen = %llu",
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show_root_type(__entry->root_objectid),
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(unsigned long long)__entry->generation)
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);
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DECLARE_EVENT_CLASS(btrfs__inode,
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TP_PROTO(struct inode *inode),
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TP_ARGS(inode),
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TP_STRUCT__entry(
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__field( ino_t, ino )
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__field( blkcnt_t, blocks )
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__field( u64, disk_i_size )
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__field( u64, generation )
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__field( u64, last_trans )
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__field( u64, logged_trans )
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__field( u64, root_objectid )
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),
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TP_fast_assign(
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__entry->ino = inode->i_ino;
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__entry->blocks = inode->i_blocks;
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__entry->disk_i_size = BTRFS_I(inode)->disk_i_size;
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__entry->generation = BTRFS_I(inode)->generation;
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__entry->last_trans = BTRFS_I(inode)->last_trans;
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__entry->logged_trans = BTRFS_I(inode)->logged_trans;
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__entry->root_objectid =
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BTRFS_I(inode)->root->root_key.objectid;
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),
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TP_printk("root = %llu(%s), gen = %llu, ino = %lu, blocks = %llu, "
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"disk_i_size = %llu, last_trans = %llu, logged_trans = %llu",
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show_root_type(__entry->root_objectid),
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(unsigned long long)__entry->generation,
|
||||
(unsigned long)__entry->ino,
|
||||
(unsigned long long)__entry->blocks,
|
||||
(unsigned long long)__entry->disk_i_size,
|
||||
(unsigned long long)__entry->last_trans,
|
||||
(unsigned long long)__entry->logged_trans)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__inode, btrfs_inode_new,
|
||||
|
||||
TP_PROTO(struct inode *inode),
|
||||
|
||||
TP_ARGS(inode)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__inode, btrfs_inode_request,
|
||||
|
||||
TP_PROTO(struct inode *inode),
|
||||
|
||||
TP_ARGS(inode)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__inode, btrfs_inode_evict,
|
||||
|
||||
TP_PROTO(struct inode *inode),
|
||||
|
||||
TP_ARGS(inode)
|
||||
);
|
||||
|
||||
#define __show_map_type(type) \
|
||||
__print_symbolic(type, \
|
||||
{ EXTENT_MAP_LAST_BYTE, "LAST_BYTE" }, \
|
||||
{ EXTENT_MAP_HOLE, "HOLE" }, \
|
||||
{ EXTENT_MAP_INLINE, "INLINE" }, \
|
||||
{ EXTENT_MAP_DELALLOC, "DELALLOC" })
|
||||
|
||||
#define show_map_type(type) \
|
||||
type, (type >= EXTENT_MAP_LAST_BYTE) ? "-" : __show_map_type(type)
|
||||
|
||||
#define show_map_flags(flag) \
|
||||
__print_flags(flag, "|", \
|
||||
{ EXTENT_FLAG_PINNED, "PINNED" }, \
|
||||
{ EXTENT_FLAG_COMPRESSED, "COMPRESSED" }, \
|
||||
{ EXTENT_FLAG_VACANCY, "VACANCY" }, \
|
||||
{ EXTENT_FLAG_PREALLOC, "PREALLOC" })
|
||||
|
||||
TRACE_EVENT(btrfs_get_extent,
|
||||
|
||||
TP_PROTO(struct btrfs_root *root, struct extent_map *map),
|
||||
|
||||
TP_ARGS(root, map),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( u64, root_objectid )
|
||||
__field( u64, start )
|
||||
__field( u64, len )
|
||||
__field( u64, orig_start )
|
||||
__field( u64, block_start )
|
||||
__field( u64, block_len )
|
||||
__field( unsigned long, flags )
|
||||
__field( int, refs )
|
||||
__field( unsigned int, compress_type )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->root_objectid = root->root_key.objectid;
|
||||
__entry->start = map->start;
|
||||
__entry->len = map->len;
|
||||
__entry->orig_start = map->orig_start;
|
||||
__entry->block_start = map->block_start;
|
||||
__entry->block_len = map->block_len;
|
||||
__entry->flags = map->flags;
|
||||
__entry->refs = atomic_read(&map->refs);
|
||||
__entry->compress_type = map->compress_type;
|
||||
),
|
||||
|
||||
TP_printk("root = %llu(%s), start = %llu, len = %llu, "
|
||||
"orig_start = %llu, block_start = %llu(%s), "
|
||||
"block_len = %llu, flags = %s, refs = %u, "
|
||||
"compress_type = %u",
|
||||
show_root_type(__entry->root_objectid),
|
||||
(unsigned long long)__entry->start,
|
||||
(unsigned long long)__entry->len,
|
||||
(unsigned long long)__entry->orig_start,
|
||||
show_map_type(__entry->block_start),
|
||||
(unsigned long long)__entry->block_len,
|
||||
show_map_flags(__entry->flags),
|
||||
__entry->refs, __entry->compress_type)
|
||||
);
|
||||
|
||||
#define show_ordered_flags(flags) \
|
||||
__print_symbolic(flags, \
|
||||
{ BTRFS_ORDERED_IO_DONE, "IO_DONE" }, \
|
||||
{ BTRFS_ORDERED_COMPLETE, "COMPLETE" }, \
|
||||
{ BTRFS_ORDERED_NOCOW, "NOCOW" }, \
|
||||
{ BTRFS_ORDERED_COMPRESSED, "COMPRESSED" }, \
|
||||
{ BTRFS_ORDERED_PREALLOC, "PREALLOC" }, \
|
||||
{ BTRFS_ORDERED_DIRECT, "DIRECT" })
|
||||
|
||||
DECLARE_EVENT_CLASS(btrfs__ordered_extent,
|
||||
|
||||
TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
|
||||
|
||||
TP_ARGS(inode, ordered),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( ino_t, ino )
|
||||
__field( u64, file_offset )
|
||||
__field( u64, start )
|
||||
__field( u64, len )
|
||||
__field( u64, disk_len )
|
||||
__field( u64, bytes_left )
|
||||
__field( unsigned long, flags )
|
||||
__field( int, compress_type )
|
||||
__field( int, refs )
|
||||
__field( u64, root_objectid )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->ino = inode->i_ino;
|
||||
__entry->file_offset = ordered->file_offset;
|
||||
__entry->start = ordered->start;
|
||||
__entry->len = ordered->len;
|
||||
__entry->disk_len = ordered->disk_len;
|
||||
__entry->bytes_left = ordered->bytes_left;
|
||||
__entry->flags = ordered->flags;
|
||||
__entry->compress_type = ordered->compress_type;
|
||||
__entry->refs = atomic_read(&ordered->refs);
|
||||
__entry->root_objectid =
|
||||
BTRFS_I(inode)->root->root_key.objectid;
|
||||
),
|
||||
|
||||
TP_printk("root = %llu(%s), ino = %llu, file_offset = %llu, "
|
||||
"start = %llu, len = %llu, disk_len = %llu, "
|
||||
"bytes_left = %llu, flags = %s, compress_type = %d, "
|
||||
"refs = %d",
|
||||
show_root_type(__entry->root_objectid),
|
||||
(unsigned long long)__entry->ino,
|
||||
(unsigned long long)__entry->file_offset,
|
||||
(unsigned long long)__entry->start,
|
||||
(unsigned long long)__entry->len,
|
||||
(unsigned long long)__entry->disk_len,
|
||||
(unsigned long long)__entry->bytes_left,
|
||||
show_ordered_flags(__entry->flags),
|
||||
__entry->compress_type, __entry->refs)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_add,
|
||||
|
||||
TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
|
||||
|
||||
TP_ARGS(inode, ordered)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_remove,
|
||||
|
||||
TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
|
||||
|
||||
TP_ARGS(inode, ordered)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_start,
|
||||
|
||||
TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
|
||||
|
||||
TP_ARGS(inode, ordered)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_put,
|
||||
|
||||
TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
|
||||
|
||||
TP_ARGS(inode, ordered)
|
||||
);
|
||||
|
||||
DECLARE_EVENT_CLASS(btrfs__writepage,
|
||||
|
||||
TP_PROTO(struct page *page, struct inode *inode,
|
||||
struct writeback_control *wbc),
|
||||
|
||||
TP_ARGS(page, inode, wbc),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( ino_t, ino )
|
||||
__field( pgoff_t, index )
|
||||
__field( long, nr_to_write )
|
||||
__field( long, pages_skipped )
|
||||
__field( loff_t, range_start )
|
||||
__field( loff_t, range_end )
|
||||
__field( char, nonblocking )
|
||||
__field( char, for_kupdate )
|
||||
__field( char, for_reclaim )
|
||||
__field( char, range_cyclic )
|
||||
__field( pgoff_t, writeback_index )
|
||||
__field( u64, root_objectid )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->ino = inode->i_ino;
|
||||
__entry->index = page->index;
|
||||
__entry->nr_to_write = wbc->nr_to_write;
|
||||
__entry->pages_skipped = wbc->pages_skipped;
|
||||
__entry->range_start = wbc->range_start;
|
||||
__entry->range_end = wbc->range_end;
|
||||
__entry->nonblocking = wbc->nonblocking;
|
||||
__entry->for_kupdate = wbc->for_kupdate;
|
||||
__entry->for_reclaim = wbc->for_reclaim;
|
||||
__entry->range_cyclic = wbc->range_cyclic;
|
||||
__entry->writeback_index = inode->i_mapping->writeback_index;
|
||||
__entry->root_objectid =
|
||||
BTRFS_I(inode)->root->root_key.objectid;
|
||||
),
|
||||
|
||||
TP_printk("root = %llu(%s), ino = %lu, page_index = %lu, "
|
||||
"nr_to_write = %ld, pages_skipped = %ld, range_start = %llu, "
|
||||
"range_end = %llu, nonblocking = %d, for_kupdate = %d, "
|
||||
"for_reclaim = %d, range_cyclic = %d, writeback_index = %lu",
|
||||
show_root_type(__entry->root_objectid),
|
||||
(unsigned long)__entry->ino, __entry->index,
|
||||
__entry->nr_to_write, __entry->pages_skipped,
|
||||
__entry->range_start, __entry->range_end,
|
||||
__entry->nonblocking, __entry->for_kupdate,
|
||||
__entry->for_reclaim, __entry->range_cyclic,
|
||||
(unsigned long)__entry->writeback_index)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__writepage, __extent_writepage,
|
||||
|
||||
TP_PROTO(struct page *page, struct inode *inode,
|
||||
struct writeback_control *wbc),
|
||||
|
||||
TP_ARGS(page, inode, wbc)
|
||||
);
|
||||
|
||||
TRACE_EVENT(btrfs_writepage_end_io_hook,
|
||||
|
||||
TP_PROTO(struct page *page, u64 start, u64 end, int uptodate),
|
||||
|
||||
TP_ARGS(page, start, end, uptodate),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( ino_t, ino )
|
||||
__field( pgoff_t, index )
|
||||
__field( u64, start )
|
||||
__field( u64, end )
|
||||
__field( int, uptodate )
|
||||
__field( u64, root_objectid )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->ino = page->mapping->host->i_ino;
|
||||
__entry->index = page->index;
|
||||
__entry->start = start;
|
||||
__entry->end = end;
|
||||
__entry->uptodate = uptodate;
|
||||
__entry->root_objectid =
|
||||
BTRFS_I(page->mapping->host)->root->root_key.objectid;
|
||||
),
|
||||
|
||||
TP_printk("root = %llu(%s), ino = %lu, page_index = %lu, start = %llu, "
|
||||
"end = %llu, uptodate = %d",
|
||||
show_root_type(__entry->root_objectid),
|
||||
(unsigned long)__entry->ino, (unsigned long)__entry->index,
|
||||
(unsigned long long)__entry->start,
|
||||
(unsigned long long)__entry->end, __entry->uptodate)
|
||||
);
|
||||
|
||||
TRACE_EVENT(btrfs_sync_file,
|
||||
|
||||
TP_PROTO(struct file *file, int datasync),
|
||||
|
||||
TP_ARGS(file, datasync),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( ino_t, ino )
|
||||
__field( ino_t, parent )
|
||||
__field( int, datasync )
|
||||
__field( u64, root_objectid )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
struct dentry *dentry = file->f_path.dentry;
|
||||
struct inode *inode = dentry->d_inode;
|
||||
|
||||
__entry->ino = inode->i_ino;
|
||||
__entry->parent = dentry->d_parent->d_inode->i_ino;
|
||||
__entry->datasync = datasync;
|
||||
__entry->root_objectid =
|
||||
BTRFS_I(inode)->root->root_key.objectid;
|
||||
),
|
||||
|
||||
TP_printk("root = %llu(%s), ino = %ld, parent = %ld, datasync = %d",
|
||||
show_root_type(__entry->root_objectid),
|
||||
(unsigned long)__entry->ino, (unsigned long)__entry->parent,
|
||||
__entry->datasync)
|
||||
);
|
||||
|
||||
TRACE_EVENT(btrfs_sync_fs,
|
||||
|
||||
TP_PROTO(int wait),
|
||||
|
||||
TP_ARGS(wait),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( int, wait )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->wait = wait;
|
||||
),
|
||||
|
||||
TP_printk("wait = %d", __entry->wait)
|
||||
);
|
||||
|
||||
#define show_ref_action(action) \
|
||||
__print_symbolic(action, \
|
||||
{ BTRFS_ADD_DELAYED_REF, "ADD_DELAYED_REF" }, \
|
||||
{ BTRFS_DROP_DELAYED_REF, "DROP_DELAYED_REF" }, \
|
||||
{ BTRFS_ADD_DELAYED_EXTENT, "ADD_DELAYED_EXTENT" }, \
|
||||
{ BTRFS_UPDATE_DELAYED_HEAD, "UPDATE_DELAYED_HEAD" })
|
||||
|
||||
|
||||
TRACE_EVENT(btrfs_delayed_tree_ref,
|
||||
|
||||
TP_PROTO(struct btrfs_delayed_ref_node *ref,
|
||||
struct btrfs_delayed_tree_ref *full_ref,
|
||||
int action),
|
||||
|
||||
TP_ARGS(ref, full_ref, action),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( u64, bytenr )
|
||||
__field( u64, num_bytes )
|
||||
__field( int, action )
|
||||
__field( u64, parent )
|
||||
__field( u64, ref_root )
|
||||
__field( int, level )
|
||||
__field( int, type )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->bytenr = ref->bytenr;
|
||||
__entry->num_bytes = ref->num_bytes;
|
||||
__entry->action = action;
|
||||
__entry->parent = full_ref->parent;
|
||||
__entry->ref_root = full_ref->root;
|
||||
__entry->level = full_ref->level;
|
||||
__entry->type = ref->type;
|
||||
),
|
||||
|
||||
TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
|
||||
"parent = %llu(%s), ref_root = %llu(%s), level = %d, "
|
||||
"type = %s",
|
||||
(unsigned long long)__entry->bytenr,
|
||||
(unsigned long long)__entry->num_bytes,
|
||||
show_ref_action(__entry->action),
|
||||
show_root_type(__entry->parent),
|
||||
show_root_type(__entry->ref_root),
|
||||
__entry->level, show_ref_type(__entry->type))
|
||||
);
|
||||
|
||||
TRACE_EVENT(btrfs_delayed_data_ref,
|
||||
|
||||
TP_PROTO(struct btrfs_delayed_ref_node *ref,
|
||||
struct btrfs_delayed_data_ref *full_ref,
|
||||
int action),
|
||||
|
||||
TP_ARGS(ref, full_ref, action),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( u64, bytenr )
|
||||
__field( u64, num_bytes )
|
||||
__field( int, action )
|
||||
__field( u64, parent )
|
||||
__field( u64, ref_root )
|
||||
__field( u64, owner )
|
||||
__field( u64, offset )
|
||||
__field( int, type )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->bytenr = ref->bytenr;
|
||||
__entry->num_bytes = ref->num_bytes;
|
||||
__entry->action = action;
|
||||
__entry->parent = full_ref->parent;
|
||||
__entry->ref_root = full_ref->root;
|
||||
__entry->owner = full_ref->objectid;
|
||||
__entry->offset = full_ref->offset;
|
||||
__entry->type = ref->type;
|
||||
),
|
||||
|
||||
TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
|
||||
"parent = %llu(%s), ref_root = %llu(%s), owner = %llu, "
|
||||
"offset = %llu, type = %s",
|
||||
(unsigned long long)__entry->bytenr,
|
||||
(unsigned long long)__entry->num_bytes,
|
||||
show_ref_action(__entry->action),
|
||||
show_root_type(__entry->parent),
|
||||
show_root_type(__entry->ref_root),
|
||||
(unsigned long long)__entry->owner,
|
||||
(unsigned long long)__entry->offset,
|
||||
show_ref_type(__entry->type))
|
||||
);
|
||||
|
||||
TRACE_EVENT(btrfs_delayed_ref_head,
|
||||
|
||||
TP_PROTO(struct btrfs_delayed_ref_node *ref,
|
||||
struct btrfs_delayed_ref_head *head_ref,
|
||||
int action),
|
||||
|
||||
TP_ARGS(ref, head_ref, action),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( u64, bytenr )
|
||||
__field( u64, num_bytes )
|
||||
__field( int, action )
|
||||
__field( int, is_data )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->bytenr = ref->bytenr;
|
||||
__entry->num_bytes = ref->num_bytes;
|
||||
__entry->action = action;
|
||||
__entry->is_data = head_ref->is_data;
|
||||
),
|
||||
|
||||
TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, is_data = %d",
|
||||
(unsigned long long)__entry->bytenr,
|
||||
(unsigned long long)__entry->num_bytes,
|
||||
show_ref_action(__entry->action),
|
||||
__entry->is_data)
|
||||
);
|
||||
|
||||
#define show_chunk_type(type) \
|
||||
__print_flags(type, "|", \
|
||||
{ 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"})
|
||||
|
||||
DECLARE_EVENT_CLASS(btrfs__chunk,
|
||||
|
||||
TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
|
||||
u64 offset, u64 size),
|
||||
|
||||
TP_ARGS(root, map, offset, size),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( int, num_stripes )
|
||||
__field( u64, type )
|
||||
__field( int, sub_stripes )
|
||||
__field( u64, offset )
|
||||
__field( u64, size )
|
||||
__field( u64, root_objectid )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->num_stripes = map->num_stripes;
|
||||
__entry->type = map->type;
|
||||
__entry->sub_stripes = map->sub_stripes;
|
||||
__entry->offset = offset;
|
||||
__entry->size = size;
|
||||
__entry->root_objectid = root->root_key.objectid;
|
||||
),
|
||||
|
||||
TP_printk("root = %llu(%s), offset = %llu, size = %llu, "
|
||||
"num_stripes = %d, sub_stripes = %d, type = %s",
|
||||
show_root_type(__entry->root_objectid),
|
||||
(unsigned long long)__entry->offset,
|
||||
(unsigned long long)__entry->size,
|
||||
__entry->num_stripes, __entry->sub_stripes,
|
||||
show_chunk_type(__entry->type))
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__chunk, btrfs_chunk_alloc,
|
||||
|
||||
TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
|
||||
u64 offset, u64 size),
|
||||
|
||||
TP_ARGS(root, map, offset, size)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__chunk, btrfs_chunk_free,
|
||||
|
||||
TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
|
||||
u64 offset, u64 size),
|
||||
|
||||
TP_ARGS(root, map, offset, size)
|
||||
);
|
||||
|
||||
TRACE_EVENT(btrfs_cow_block,
|
||||
|
||||
TP_PROTO(struct btrfs_root *root, struct extent_buffer *buf,
|
||||
struct extent_buffer *cow),
|
||||
|
||||
TP_ARGS(root, buf, cow),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( u64, root_objectid )
|
||||
__field( u64, buf_start )
|
||||
__field( int, refs )
|
||||
__field( u64, cow_start )
|
||||
__field( int, buf_level )
|
||||
__field( int, cow_level )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->root_objectid = root->root_key.objectid;
|
||||
__entry->buf_start = buf->start;
|
||||
__entry->refs = atomic_read(&buf->refs);
|
||||
__entry->cow_start = cow->start;
|
||||
__entry->buf_level = btrfs_header_level(buf);
|
||||
__entry->cow_level = btrfs_header_level(cow);
|
||||
),
|
||||
|
||||
TP_printk("root = %llu(%s), refs = %d, orig_buf = %llu "
|
||||
"(orig_level = %d), cow_buf = %llu (cow_level = %d)",
|
||||
show_root_type(__entry->root_objectid),
|
||||
__entry->refs,
|
||||
(unsigned long long)__entry->buf_start,
|
||||
__entry->buf_level,
|
||||
(unsigned long long)__entry->cow_start,
|
||||
__entry->cow_level)
|
||||
);
|
||||
|
||||
DECLARE_EVENT_CLASS(btrfs__reserved_extent,
|
||||
|
||||
TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
|
||||
|
||||
TP_ARGS(root, start, len),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field( u64, root_objectid )
|
||||
__field( u64, start )
|
||||
__field( u64, len )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->root_objectid = root->root_key.objectid;
|
||||
__entry->start = start;
|
||||
__entry->len = len;
|
||||
),
|
||||
|
||||
TP_printk("root = %llu(%s), start = %llu, len = %llu",
|
||||
show_root_type(__entry->root_objectid),
|
||||
(unsigned long long)__entry->start,
|
||||
(unsigned long long)__entry->len)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__reserved_extent, btrfs_reserved_extent_alloc,
|
||||
|
||||
TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
|
||||
|
||||
TP_ARGS(root, start, len)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(btrfs__reserved_extent, btrfs_reserved_extent_free,
|
||||
|
||||
TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
|
||||
|
||||
TP_ARGS(root, start, len)
|
||||
);
|
||||
|
||||
#endif /* _TRACE_BTRFS_H */
|
||||
|
||||
/* This part must be outside protection */
|
||||
#include <trace/define_trace.h>
|
||||
Loading…
Reference in New Issue
Block a user