diff options
| author | alc <alc@FreeBSD.org> | 2004-07-18 21:19:10 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2004-07-18 21:19:10 +0000 |
| commit | 8fe12ef8db88fe5b261b6c7b14bbc330def59245 (patch) | |
| tree | 808222ebb56df2b8a000b49ac6d467af567e1429 /sys | |
| parent | 36406aeaf385ec59d079801fe282cffe37b01ead (diff) | |
| download | FreeBSD-src-8fe12ef8db88fe5b261b6c7b14bbc330def59245.zip FreeBSD-src-8fe12ef8db88fe5b261b6c7b14bbc330def59245.tar.gz | |
Utilize pmap_pte_quick() rather than pmap_pte() in pmap_protect(). The
reason being that pmap_pte_quick() requires the page queues lock, which is
already held, rather than Giant.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/i386/i386/pmap.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c index bbb4be3..5a4af6a 100644 --- a/sys/i386/i386/pmap.c +++ b/sys/i386/i386/pmap.c @@ -1805,6 +1805,7 @@ pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t prot) anychanged = 0; vm_page_lock_queues(); + sched_pin(); PMAP_LOCK(pmap); for (; sva < eva; sva = pdnxt) { unsigned pdirindex; @@ -1839,7 +1840,7 @@ pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t prot) pt_entry_t *pte; vm_page_t m; - if ((pte = pmap_pte(pmap, sva)) == NULL) + if ((pte = pmap_pte_quick(pmap, sva)) == NULL) continue; pbits = *pte; if (pbits & PG_MANAGED) { @@ -1868,6 +1869,7 @@ pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t prot) } if (anychanged) pmap_invalidate_all(pmap); + sched_unpin(); vm_page_unlock_queues(); PMAP_UNLOCK(pmap); } |
