Replace kernel virtual address space allocation with vmem. This provides

transparent layering and better fragmentation.

 - Normalize functions that allocate memory to use kmem_*
 - Those that allocate address space are named kva_*
 - Those that operate on maps are named kmap_*
 - Implement recursive allocation handling for kmem_arena in vmem.

Reviewed by:	alc
Tested by:	pho
Sponsored by:	EMC / Isilon Storage Division

1 files changed, 3 insertions, 3 deletions

diff --git a/sys/kern/subr_busdma_bufalloc.c b/sys/kern/subr_busdma_bufalloc.c
index 9406d95..a80a233 100644
--- a/sys/kern/subr_busdma_bufalloc.c
+++ b/sys/kern/subr_busdma_bufalloc.c
@@ -152,10 +152,10 @@ busdma_bufalloc_alloc_uncacheable(uma_zone_t zone, int size, u_int8_t *pflag,
 {
 #ifdef VM_MEMATTR_UNCACHEABLE
 
-	/* Inform UMA that this allocator uses kernel_map/object. */
+	/* Inform UMA that this allocator uses kernel_arena/object. */
 	*pflag = UMA_SLAB_KERNEL;
 
-	return ((void *)kmem_alloc_attr(kernel_map, size, wait, 0,
+	return ((void *)kmem_alloc_attr(kernel_arena, size, wait, 0,
 	    BUS_SPACE_MAXADDR, VM_MEMATTR_UNCACHEABLE));
 
 #else
@@ -169,6 +169,6 @@ void
 busdma_bufalloc_free_uncacheable(void *item, int size, u_int8_t pflag)
 {
 
-	kmem_free(kernel_map, (vm_offset_t)item, size);
+	kmem_free(kernel_arena, (vm_offset_t)item, size);
 }