From f13324f65bc2419a9196c4eca76e5e57c0d7fea5 Mon Sep 17 00:00:00 2001 From: alc Date: Sun, 7 Mar 2004 21:06:48 +0000 Subject: 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. --- sys/vm/vm_glue.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'sys/vm/vm_glue.c') 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); } -- cgit v1.1