The structure of dirty records (DR) mirror the dbufs they belong to. More...

#include <dbuf.h>

Collaboration diagram for dbuf_dirty_record:

Data Structures
union	dirty_types
Data Fields
list_node_t	dr_dirty_node
	link on our parents dirty list
uint64_t	dr_txg
	transaction group this data will sync in
zio_t *	dr_zio
	zio of outstanding write IO
struct dmu_buf_impl *	dr_dbuf
	pointer back to our dbuf
struct dbuf_dirty_record *	dr_next
	pointer to next dirty record
struct dbuf_dirty_record *	dr_parent
	pointer to parent dirty record
union dbuf_dirty_record::dirty_types	dt

Detailed Description

The structure of dirty records (DR) mirror the dbufs they belong to.

That is, a dnode, its indirect blocks, and its data (leaf) blocks all have their own DRs. Each can only have one for each in-flight TXG. Each can have a parent DR, which is associated with its parent dbuf. Indirects can have child DRs, each associated with its child dbufs. Finally, the leaf DRs contain the ARC buffer containing the data to be written.

Definition at line 106 of file dbuf.h.