From ab9abe5d7eb89c87aecbf37a8ad10a368c17bf96 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Sun, 21 Jul 2002 20:38:45 +0000 Subject: [PATCH] o Lock page queue accesses by vm_page_free(). --- sys/vm/swap_pager.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c index 614fd4876a2..7dc703cbb12 100644 --- a/sys/vm/swap_pager.c +++ b/sys/vm/swap_pager.c @@ -1053,6 +1053,7 @@ swap_pager_getpages(object, m, count, reqpage) * free pages outside our collection range. Note: we never free * mreq, it must remain busy throughout. */ + vm_page_lock_queues(); { int k; @@ -1061,6 +1062,7 @@ swap_pager_getpages(object, m, count, reqpage) for (k = j; k < count; ++k) vm_page_free(m[k]); } + vm_page_unlock_queues(); splx(s);