Commit 2c53a14d authored by Qu Wenruo's avatar Qu Wenruo Committed by David Sterba
Browse files

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: default avatarQu Wenruo <wqu@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 6b613cc9

fs/btrfs/disk-io.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

fs/btrfs/extent-io-tree.h

+1 −0
Original line number Diff line number Diff line
@@ -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,

include/trace/events/btrfs.h

+1 −0
Original line number Diff line number Diff line
@@ -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")	    \

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