image/svg+xml
->completed = ->gpnum
Root
rcu_gp_cleanup()
->completed = ->gpnum
Leaf
->completed = ->gpnum
rsp->completed =
Root
rnp->completed
Leaf
Leaf
Leaf
Leaf
->completed = ->gpnum
Leaf
Leaf
->completed = ->gpnum
Leaf
->completed = ->gpnum
->completed = ->gpnum
Start of
Next Grace
Period