diff options
| author | alc <alc@FreeBSD.org> | 2002-12-24 07:32:38 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2002-12-24 07:32:38 +0000 |
| commit | d3c2f878f156c42c0119a330362b1c4cd0945cdb (patch) | |
| tree | 39e1973ac74ca58a35ba64f82d0243418003b12b /sys/i386 | |
| parent | f47bf7602e54364918fbcb92b366e315b8bc9290 (diff) | |
| download | FreeBSD-src-d3c2f878f156c42c0119a330362b1c4cd0945cdb.zip FreeBSD-src-d3c2f878f156c42c0119a330362b1c4cd0945cdb.tar.gz | |
- Hold the page queues lock around calls to vm_page_wakeup() and
vm_page_flag_clear().
Diffstat (limited to 'sys/i386')
| -rw-r--r-- | sys/i386/i386/pmap.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c index 2218d58..5a54365 100644 --- a/sys/i386/i386/pmap.c +++ b/sys/i386/i386/pmap.c @@ -997,9 +997,11 @@ pmap_new_thread(struct thread *td, int pages) VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED); ma[i] = m; + vm_page_lock_queues(); vm_page_wakeup(m); vm_page_flag_clear(m, PG_ZERO); m->valid = VM_PAGE_BITS_ALL; + vm_page_unlock_queues(); } pmap_qenter(ks, ma, pages); } @@ -1271,8 +1273,10 @@ pmap_pinit(pmap) */ ptdpg = vm_page_grab(pmap->pm_pteobj, PTDPTDI, VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED | VM_ALLOC_ZERO); + vm_page_lock_queues(); vm_page_flag_clear(ptdpg, PG_BUSY); ptdpg->valid = VM_PAGE_BITS_ALL; + vm_page_unlock_queues(); pmap_qenter((vm_offset_t) pmap->pm_pdir, &ptdpg, 1); if ((ptdpg->flags & PG_ZERO) == 0) @@ -1412,10 +1416,11 @@ _pmap_allocpte(pmap, ptepindex) pmap_zero_page(m); } } - + vm_page_lock_queues(); m->valid = VM_PAGE_BITS_ALL; vm_page_flag_clear(m, PG_ZERO); vm_page_wakeup(m); + vm_page_unlock_queues(); return m; } @@ -2349,7 +2354,6 @@ retry: vm_page_lock_queues(); if (vm_page_sleep_if_busy(p, FALSE, "init4p")) goto retry; - vm_page_unlock_queues(); } else { p = vm_page_alloc(object, pindex, VM_ALLOC_NORMAL); if (p == NULL) @@ -2364,8 +2368,10 @@ retry: } p = vm_page_lookup(object, pindex); + vm_page_lock_queues(); vm_page_wakeup(p); } + vm_page_unlock_queues(); ptepa = VM_PAGE_TO_PHYS(p); if (ptepa & (NBPDR - 1)) { |
