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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/relocation.c
parent7b4397386fbdc606eb053bc2a1cfd985aea59916 (diff)
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/relocation.c')
-rw-r--r--fs/btrfs/relocation.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 955da7baa665..b52fb99646dc 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -4234,7 +4234,8 @@ static struct reloc_control *alloc_reloc_control(struct btrfs_fs_info *fs_info)
INIT_LIST_HEAD(&rc->dirty_subvol_roots);
backref_cache_init(&rc->backref_cache);
mapping_tree_init(&rc->reloc_root_tree);
- extent_io_tree_init(fs_info, &rc->processed_blocks, NULL);
+ extent_io_tree_init(fs_info, &rc->processed_blocks,
+ IO_TREE_RELOC_BLOCKS, NULL);
return rc;
}