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author | Qu Wenruo <wqu@suse.com> | 2019-03-01 05:47:59 +0300 |
---|---|---|
committer | David Sterba <dsterba@suse.com> | 2019-04-29 20:02:18 +0300 |
commit | 43eb5f2975848743e5b14c5bef20f40d404a7a04 (patch) | |
tree | 5f1e88f2b2f823221851a64feee831bed4bd204c /fs/btrfs/transaction.c | |
parent | 7b4397386fbdc606eb053bc2a1cfd985aea59916 (diff) | |
download | linux-43eb5f2975848743e5b14c5bef20f40d404a7a04.tar.xz |
btrfs: Introduce extent_io_tree::owner to distinguish different io_trees
Btrfs has the following different extent_io_trees used:
- fs_info::free_extents[2]
- btrfs_inode::io_tree - for both normal inodes and the btree inode
- btrfs_inode::io_failure_tree
- btrfs_transaction::dirty_pages
- btrfs_root::dirty_log_pages
If we want to trace changes in those trees, it will be pretty hard to
distinguish them.
Instead of using hard-to-read pointer address, this patch will introduce
a new member extent_io_tree::owner to track the owner.
This modification needs all the callers of extent_io_tree_init() to
accept a new parameter @owner.
This patch provides the basis for later trace events.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/transaction.c')
-rw-r--r-- | fs/btrfs/transaction.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index bc8ed44ad8c8..f1732b77a379 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -275,7 +275,7 @@ loop: spin_lock_init(&cur_trans->dropped_roots_lock); list_add_tail(&cur_trans->list, &fs_info->trans_list); extent_io_tree_init(fs_info, &cur_trans->dirty_pages, - fs_info->btree_inode); + IO_TREE_TRANS_DIRTY_PAGES, fs_info->btree_inode); fs_info->generation++; cur_trans->transid = fs_info->generation; fs_info->running_transaction = cur_trans; |