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| author | ups <ups@FreeBSD.org> | 2006-06-15 01:01:06 +0000 |
|---|---|---|
| committer | ups <ups@FreeBSD.org> | 2006-06-15 01:01:06 +0000 |
| commit | b3a7439a45bf95ef2c21dfad6ba1a051467efad1 (patch) | |
| tree | ef8795aacb2aaea54cc725dafc9bd2ea5f8fdba3 /sys/amd64 | |
| parent | 63bddd18cc9d5d6e46d95bda0c636f912901812d (diff) | |
| download | FreeBSD-src-b3a7439a45bf95ef2c21dfad6ba1a051467efad1.zip FreeBSD-src-b3a7439a45bf95ef2c21dfad6ba1a051467efad1.tar.gz | |
Remove mpte optimization from pmap_enter_quick().
There is a race with the current locking scheme and removing
it should have no measurable performance impact.
This fixes page faults leading to panics in pmap_enter_quick_locked()
on amd64/i386.
Reviewed by: alc,jhb,peter,ps
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/amd64/pmap.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index 9206f7d..44ed928 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -2356,15 +2356,13 @@ pmap_enter_object(pmap_t pmap, vm_offset_t start, vm_offset_t end, * but is *MUCH* faster than pmap_enter... */ -vm_page_t -pmap_enter_quick(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot, - vm_page_t mpte) +void +pmap_enter_quick(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot) { PMAP_LOCK(pmap); - mpte = pmap_enter_quick_locked(pmap, va, m, prot, mpte); + (void) pmap_enter_quick_locked(pmap, va, m, prot, NULL); PMAP_UNLOCK(pmap); - return (mpte); } static vm_page_t |
