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authorQu Wenruo <wqu@suse.com>2019-03-01 10:47:59 +0800
committerDavid Sterba <dsterba@suse.com>2019-04-29 19:02:18 +0200
commit43eb5f2975848743e5b14c5bef20f40d404a7a04 (patch)
tree5f1e88f2b2f823221851a64feee831bed4bd204c /fs/btrfs/transaction.c
parent7b4397386fbdc606eb053bc2a1cfd985aea59916 (diff)
downloadlinux-43eb5f2975848743e5b14c5bef20f40d404a7a04.tar.bz2
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.c2
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;