From 2c53a14dd30124de9468316933715deaf7443096 Mon Sep 17 00:00:00 2001 From: Qu Wenruo Date: Tue, 15 Sep 2020 13:35:27 +0800 Subject: [PATCH] btrfs: use own btree inode io_tree owner id Btree inode is special compared to all other inode extent io_trees, although it has a btrfs inode, it doesn't have the track_uptodate bit at all. This means a lot of things like extent locking doesn't even need to be applied to btree io tree. Since it's so special, adds a new owner value for it to make debuging a little easier. Signed-off-by: Qu Wenruo Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/disk-io.c | 2 +- fs/btrfs/extent-io-tree.h | 1 + include/trace/events/btrfs.h | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 53b588a..ebc1102 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2062,7 +2062,7 @@ static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info) RB_CLEAR_NODE(&BTRFS_I(inode)->rb_node); extent_io_tree_init(fs_info, &BTRFS_I(inode)->io_tree, - IO_TREE_INODE_IO, inode); + IO_TREE_BTREE_INODE_IO, inode); BTRFS_I(inode)->io_tree.track_uptodate = false; extent_map_tree_init(&BTRFS_I(inode)->extent_tree); diff --git a/fs/btrfs/extent-io-tree.h b/fs/btrfs/extent-io-tree.h index 250b8cb..53e7b5b 100644 --- a/fs/btrfs/extent-io-tree.h +++ b/fs/btrfs/extent-io-tree.h @@ -40,6 +40,7 @@ struct io_failure_record; enum { IO_TREE_FS_PINNED_EXTENTS, IO_TREE_FS_EXCLUDED_EXTENTS, + IO_TREE_BTREE_INODE_IO, IO_TREE_INODE_IO, IO_TREE_INODE_IO_FAILURE, IO_TREE_RELOC_BLOCKS, diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h index 8d31106..ecd24c7 100644 --- a/include/trace/events/btrfs.h +++ b/include/trace/events/btrfs.h @@ -79,6 +79,7 @@ struct btrfs_space_info; #define IO_TREE_OWNER \ EM( IO_TREE_FS_PINNED_EXTENTS, "PINNED_EXTENTS") \ EM( IO_TREE_FS_EXCLUDED_EXTENTS, "EXCLUDED_EXTENTS") \ + EM( IO_TREE_BTREE_INODE_IO, "BTREE_INODE_IO") \ EM( IO_TREE_INODE_IO, "INODE_IO") \ EM( IO_TREE_INODE_IO_FAILURE, "INODE_IO_FAILURE") \ EM( IO_TREE_RELOC_BLOCKS, "RELOC_BLOCKS") \ -- 2.7.4