diff options
| author | Alan Cox <alc@FreeBSD.org> | 2004-07-13 06:54:23 +0000 |
|---|---|---|
| committer | Alan Cox <alc@FreeBSD.org> | 2004-07-13 06:54:23 +0000 |
| commit | 440382a95305b2d64b2f50875c6ba9568a511a23 (patch) | |
| tree | da0cad130d312dda4bfb07f29c3f55f9f8b9bf76 | |
| parent | 8f0a7125a194a03db482964db3ca269172ec0d10 (diff) | |
| download | src-440382a95305b2d64b2f50875c6ba9568a511a23.tar.gz src-440382a95305b2d64b2f50875c6ba9568a511a23.zip | |
Simplify pmap_protect().
Notes
Notes:
svn path=/head/; revision=132085
| -rw-r--r-- | sys/ia64/ia64/pmap.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/sys/ia64/ia64/pmap.c b/sys/ia64/ia64/pmap.c index 2e3cb882ce04..6d52c72155a3 100644 --- a/sys/ia64/ia64/pmap.c +++ b/sys/ia64/ia64/pmap.c @@ -1444,18 +1444,15 @@ pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t prot) if (pmap == NULL) return; - oldpmap = pmap_install(pmap); - if ((prot & VM_PROT_READ) == VM_PROT_NONE) { pmap_remove(pmap, sva, eva); - pmap_install(oldpmap); return; } - if (prot & VM_PROT_WRITE) { - pmap_install(oldpmap); + if (prot & VM_PROT_WRITE) return; - } + + oldpmap = pmap_install(pmap); newprot = pte_prot(pmap, prot); |