Retire pmap_pinit2(). Alpha was the last platform that used it. However,

ever since alpha/alpha/pmap.c revision 1.81 introduced the list allpmaps,
there has been no reason for having this function on Alpha.  Briefly,
when pmap_growkernel() relied upon the list of all processes to find and
update the various pmaps to reflect a growth in the kernel's valid
address space, pmap_init2() served to avoid a race between pmap
initialization and pmap_growkernel().  Specifically, pmap_pinit2() was
responsible for initializing the kernel portions of the pmap and
pmap_pinit2() was called after the process structure contained a pointer
to the new pmap for use by pmap_growkernel().  Thus, an update to the
kernel's address space might be applied to the new pmap unnecessarily,
but an update would never be lost.

1 files changed, 0 insertions, 2 deletions

diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c
index ecfade8..d4a7fe6 100644
--- a/sys/vm/vm_map.c
+++ b/sys/vm/vm_map.c
@@ -2798,7 +2798,6 @@ vmspace_exec(struct proc *p, vm_offset_t minuser, vm_offset_t maxuser)
 	 * here, it is a good idea to keep this form for future mods.
 	 */
 	p->p_vmspace = newvmspace;
-	pmap_pinit2(vmspace_pmap(newvmspace));
 	if (p == curthread->td_proc)		/* XXXKSE ? */
 		pmap_activate(curthread);
 	vmspace_free(oldvmspace);
@@ -2819,7 +2818,6 @@ vmspace_unshare(struct proc *p)
 		return;
 	newvmspace = vmspace_fork(oldvmspace);
 	p->p_vmspace = newvmspace;
-	pmap_pinit2(vmspace_pmap(newvmspace));
 	if (p == curthread->td_proc)		/* XXXKSE ? */
 		pmap_activate(curthread);
 	vmspace_free(oldvmspace);