diff options
| author | kib <kib@FreeBSD.org> | 2013-03-21 07:28:15 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2013-03-21 07:28:15 +0000 |
| commit | 9382f70781f175347620eab8b665f052267b44d8 (patch) | |
| tree | 9bc7b3e0c6cc84c20d55326658b4ae8b7a95602e /sys/vm/vm_init.c | |
| parent | 20a66ac4033ea025111b5bfaa05b8390f33f9e33 (diff) | |
| download | FreeBSD-src-9382f70781f175347620eab8b665f052267b44d8.zip FreeBSD-src-9382f70781f175347620eab8b665f052267b44d8.tar.gz | |
Only size and create the bio_transient_map when unmapped buffers are
enabled. Now, disabling the unmapped buffers should result in the
kernel memory map identical to pre-r248550.
Sponsored by: The FreeBSD Foundation
Diffstat (limited to 'sys/vm/vm_init.c')
| -rw-r--r-- | sys/vm/vm_init.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sys/vm/vm_init.c b/sys/vm/vm_init.c index b350e96..62e9891 100644 --- a/sys/vm/vm_init.c +++ b/sys/vm/vm_init.c @@ -189,10 +189,12 @@ again: buffer_map = kmem_suballoc(clean_map, &kmi->buffer_sva, &kmi->buffer_eva, (long)nbuf * BKVASIZE, FALSE); buffer_map->system_map = 1; - bio_transient_map = kmem_suballoc(clean_map, &kmi->bio_transient_sva, - &kmi->bio_transient_eva, (long)bio_transient_maxcnt * MAXPHYS, - FALSE); - bio_transient_map->system_map = 1; + if (bio_transient_maxcnt != 0) { + bio_transient_map = kmem_suballoc(clean_map, + &kmi->bio_transient_sva, &kmi->bio_transient_eva, + (long)bio_transient_maxcnt * MAXPHYS, FALSE); + bio_transient_map->system_map = 1; + } pager_map = kmem_suballoc(clean_map, &kmi->pager_sva, &kmi->pager_eva, (long)nswbuf * MAXPHYS, FALSE); pager_map->system_map = 1; |
