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| author | marius <marius@FreeBSD.org> | 2011-07-05 18:40:37 +0000 |
|---|---|---|
| committer | marius <marius@FreeBSD.org> | 2011-07-05 18:40:37 +0000 |
| commit | 97f9011cd81d27c563028b9f2fe7df9169adde14 (patch) | |
| tree | 8f217ab440eff877ad6e011fc9f833215dec59bd /sys/sparc64 | |
| parent | f71b110a36640f214204387737c5964c19a4aeee (diff) | |
| download | FreeBSD-src-97f9011cd81d27c563028b9f2fe7df9169adde14.zip FreeBSD-src-97f9011cd81d27c563028b9f2fe7df9169adde14.tar.gz | |
Call pmap_qremove() before freeing or unwiring the pages, otherwise
there's a window during which a page can be re-used before its previous
mapping is removed.
Reviewed by: alc
MFC after: 1 week
Diffstat (limited to 'sys/sparc64')
| -rw-r--r-- | sys/sparc64/sparc64/pmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/sparc64/sparc64/pmap.c b/sys/sparc64/sparc64/pmap.c index 9ec19e1..26c95cf 100644 --- a/sys/sparc64/sparc64/pmap.c +++ b/sys/sparc64/sparc64/pmap.c @@ -1294,6 +1294,7 @@ pmap_release(pmap_t pm) pc->pc_pmap = NULL; mtx_unlock_spin(&sched_lock); + pmap_qremove((vm_offset_t)pm->pm_tsb, TSB_PAGES); obj = pm->pm_tsb_obj; VM_OBJECT_LOCK(obj); KASSERT(obj->ref_count == 1, ("pmap_release: tsbobj ref count != 1")); @@ -1305,7 +1306,6 @@ pmap_release(pmap_t pm) vm_page_free_zero(m); } VM_OBJECT_UNLOCK(obj); - pmap_qremove((vm_offset_t)pm->pm_tsb, TSB_PAGES); PMAP_LOCK_DESTROY(pm); } |
