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, 3 deletions

diff --git a/sys/vm/vm_glue.c b/sys/vm/vm_glue.c
index 89cf4c7..1b1be53 100644
--- a/sys/vm/vm_glue.c
+++ b/sys/vm/vm_glue.c
@@ -675,9 +675,6 @@ vm_forkproc(td, p2, td2, flags)
 
 	if ((flags & RFMEM) == 0) {
 		p2->p_vmspace = vmspace_fork(p1->p_vmspace);
-
-		pmap_pinit2(vmspace_pmap(p2->p_vmspace));
-
 		if (p1->p_vmspace->vm_shm)
 			shmfork(p1, p2);
 	}