Defer the vrele() on a jail's root vnode reference from prison_free()

to a new prison_complete() task run by a task queue.  This removes
a requirement for grabbing Giant in crfree().  Embed the 'struct task'
in 'struct prison' so that we don't have to allocate memory from
prison_free() (which means we also defer the FREE()).

With this change, I believe grabbing Giant from crfree() can now be
removed, but need to check the uidinfo code paths.

To avoid header pollution, move the definition of 'struct task'
to _task.h, and recursively include from taskqueue.h and jail.h; much
preferably to all files including jail.h picking up a requirement to
include taskqueue.h.

Bumped into by:	sam
Reviewed by:	bde, tjr

0 files changed, 0 insertions, 0 deletions