Author: alc
Date: Sat May 8 23:01:47 2010
New Revision: 207805
URL: http://svn.freebsd.org/changeset/base/207805
Log:
Update a comment: It no longer makes sense to talk about the page queues
lock here.
Modified:
head/sys/kern/sys_pipe.c
Modified: head/sys/kern/sys_pipe.c
==============================================================================
--- head/sys/kern/sys_pipe.c Sat May 8 22:25:37 2010 (r207804)
+++ head/sys/kern/sys_pipe.c Sat May 8 23:01:47 2010 (r207805)
@@ -767,13 +767,10 @@ pipe_build_write_buffer(wpipe, uio)
return (EFAULT);
for (i = 0; addr < endaddr; addr += PAGE_SIZE, i++) {
/*
- * vm_fault_quick() can sleep. Consequently,
- * vm_page_lock_queue() and vm_page_unlock_queue()
- * should not be performed outside of this loop.
+ * vm_fault_quick() can sleep.
*/
race:
if (vm_fault_quick((caddr_t)addr, VM_PROT_READ) < 0) {
-
for (j = 0; j < i; j++) {
vm_page_lock(wpipe->pipe_map.ms[j]);
vm_page_unhold(wpipe->pipe_map.ms[j]);
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