diff options
| author |   ariane <ariane@openbsd.org> | 2011-05-29 17:18:22 +0000 |
|---|---|---|
| committer | ariane <ariane@openbsd.org> | 2011-05-29 17:18:22 +0000 |
| commit | 369189ebf68d60875409c2ba79edee354e3aa940 (patch) | |
| tree | 51eda5c8d4e3eeca20a709e6d171b23f1d76968e | |
| parent | regen (diff) | |
| download | wireguard-openbsd-369189ebf68d60875409c2ba79edee354e3aa940.tar.xz wireguard-openbsd-369189ebf68d60875409c2ba79edee354e3aa940.zip | |
Replace the lower bound PAGE_SIZE with VMMAP_MIN_ADDR.
This makes writing a diff that makes 64-bit unclean applications explode
a one-line diff.
ok deraadt
| -rw-r--r-- | sys/uvm/uvm_map.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/uvm/uvm_map.c b/sys/uvm/uvm_map.c index 58406bd6efd..8d2c1b34c49 100644 --- a/sys/uvm/uvm_map.c +++ b/sys/uvm/uvm_map.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_map.c,v 1.137 2011/05/29 15:18:19 ariane Exp $ */ +/* $OpenBSD: uvm_map.c,v 1.138 2011/05/29 17:18:22 ariane Exp $ */ /* $NetBSD: uvm_map.c,v 1.86 2000/11/27 08:40:03 chs Exp $ */ /* @@ -87,6 +87,7 @@ */ /* #define DEBUG */ +#define VMMAP_MIN_ADDR PAGE_SIZE /* auto-allocate address lower bound */ #include <sys/param.h> #include <sys/systm.h> @@ -4360,7 +4361,7 @@ struct uvm_map_free* uvm_free(struct vm_map *map, vaddr_t addr) { /* Special case the first page, to prevent mmap from returning 0. */ - if (addr < PAGE_SIZE) + if (addr < VMMAP_MIN_ADDR) return NULL; if ((map->flags & VM_MAP_ISVMSPACE) == 0) { @@ -4384,7 +4385,7 @@ vsize_t uvm_map_boundary(struct vm_map *map, vaddr_t min, vaddr_t max) { /* Treat the first page special, mmap returning 0 breaks too much. */ - max = uvm_map_boundfix(min, max, PAGE_SIZE); + max = uvm_map_boundfix(min, max, VMMAP_MIN_ADDR); if ((map->flags & VM_MAP_ISVMSPACE) == 0) { max = uvm_map_boundfix(min, max, uvm_maxkaddr); |