From f553bda045fa3d0d427d1d56820a76d16f339b7e Mon Sep 17 00:00:00 2001 From: alc Date: Thu, 27 Oct 2011 17:29:19 +0000 Subject: Tidy up the comment at the head of vm_page_alloc, and mention that the returned page has the flag VPO_BUSY set. --- sys/vm/vm_page.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'sys/vm/vm_page.c') diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index cde1387..8bce072 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -1286,8 +1286,9 @@ vm_page_cache_transfer(vm_object_t orig_object, vm_pindex_t offidxstart, /* * vm_page_alloc: * - * Allocate and return a memory cell associated - * with this VM object/offset pair. + * Allocate and return a page that is associated with the specified + * object and offset pair. By default, this page has the flag VPO_BUSY + * set. * * The caller must always specify an allocation class. * @@ -1297,13 +1298,14 @@ vm_page_cache_transfer(vm_object_t orig_object, vm_pindex_t offidxstart, * VM_ALLOC_INTERRUPT interrupt time request * * optional allocation flags: - * VM_ALLOC_ZERO prefer a zeroed page - * VM_ALLOC_WIRED wire the allocated page - * VM_ALLOC_NOOBJ page is not associated with a vm object - * VM_ALLOC_NOBUSY do not set the page busy * VM_ALLOC_IFCACHED return page only if it is cached * VM_ALLOC_IFNOTCACHED return NULL, do not reactivate if the page * is cached + * VM_ALLOC_NOBUSY do not set the flag VPO_BUSY on the page + * VM_ALLOC_NOOBJ page is not associated with an object and + * should not have the flag VPO_BUSY set + * VM_ALLOC_WIRED wire the allocated page + * VM_ALLOC_ZERO prefer a zeroed page * * This routine may not sleep. */ -- cgit v1.1