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| author | alc <alc@FreeBSD.org> | 2015-09-27 01:15:17 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2015-09-27 01:15:17 +0000 |
| commit | 88a31859bc3d4aa7ff0ff68863cbf4c83084dca0 (patch) | |
| tree | 41e3e0724fe2a19ca7f9625e5af7a3f3cef3e418 /sys/vm | |
| parent | d059c10283c1b9c979f237d20f8944465a2e3f62 (diff) | |
| download | FreeBSD-src-88a31859bc3d4aa7ff0ff68863cbf4c83084dca0.zip FreeBSD-src-88a31859bc3d4aa7ff0ff68863cbf4c83084dca0.tar.gz | |
MFC r287944
Eliminate (many) unnecessary calls to pmap_remove_all().
Diffstat (limited to 'sys/vm')
| -rw-r--r-- | sys/vm/vm_page.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index 8024a7c..7d6ce08 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -3009,7 +3009,8 @@ vm_page_set_invalid(vm_page_t m, int base, int size) bits = VM_PAGE_BITS_ALL; else bits = vm_page_bits(base, size); - if (m->valid == VM_PAGE_BITS_ALL && bits != 0) + if (object->ref_count != 0 && m->valid == VM_PAGE_BITS_ALL && + bits != 0) pmap_remove_all(m); KASSERT((bits == 0 && m->valid == VM_PAGE_BITS_ALL) || !pmap_page_is_mapped(m), |
