From 6808836f35763fea89846f4ea80bd59acea1fe37 Mon Sep 17 00:00:00 2001 From: alc Date: Fri, 12 Sep 2003 07:13:15 +0000 Subject: pipe_build_write_buffer() only requires read access of the page that it obtains from pmap_extract_and_hold(). --- sys/kern/sys_pipe.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'sys/kern/sys_pipe.c') diff --git a/sys/kern/sys_pipe.c b/sys/kern/sys_pipe.c index 0e7d6f2..76e23b7 100644 --- a/sys/kern/sys_pipe.c +++ b/sys/kern/sys_pipe.c @@ -668,7 +668,8 @@ pipe_build_write_buffer(wpipe, uio) vm_page_unlock_queues(); return (EFAULT); } - wpipe->pipe_map.ms[i] = pmap_extract_and_hold(pmap, addr); + wpipe->pipe_map.ms[i] = pmap_extract_and_hold(pmap, addr, + VM_PROT_READ); if (wpipe->pipe_map.ms[i] == NULL) goto race; } -- cgit v1.1