diff options
author | Alan Cox <alc@FreeBSD.org> | 2004-03-07 21:06:48 +0000 |
---|---|---|
committer | Alan Cox <alc@FreeBSD.org> | 2004-03-07 21:06:48 +0000 |
commit | fcffa790e98402113286a22c64158f4b1a450ae6 (patch) | |
tree | 46fc651b1b10f7e2ee470193f457cfe495ed084a /sys/vm/vm_map.c | |
parent | 7594cde0322d5f8f63fb78ef870f470dc8f5a569 (diff) | |
download | src-fcffa790e98402113286a22c64158f4b1a450ae6.tar.gz src-fcffa790e98402113286a22c64158f4b1a450ae6.zip |
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.
Notes
Notes:
svn path=/head/; revision=126728
Diffstat (limited to 'sys/vm/vm_map.c')
-rw-r--r-- | sys/vm/vm_map.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c index ecfade86fd20..d4a7fe6da754 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); |