diff options
Diffstat (limited to 'sys/uvm/uvm_map.h')
| -rw-r--r-- | sys/uvm/uvm_map.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/uvm/uvm_map.h b/sys/uvm/uvm_map.h index 70c23e8c56b..df132b17459 100644 --- a/sys/uvm/uvm_map.h +++ b/sys/uvm/uvm_map.h @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_map.h,v 1.52 2014/12/05 04:12:48 uebayasi Exp $ */ +/* $OpenBSD: uvm_map.h,v 1.53 2015/02/06 09:04:34 tedu Exp $ */ /* $NetBSD: uvm_map.h,v 1.24 2001/02/18 21:19:08 chs Exp $ */ /* @@ -80,6 +80,7 @@ #ifndef _UVM_UVM_MAP_H_ #define _UVM_UVM_MAP_H_ +#include <sys/mutex.h> #include <sys/rwlock.h> #ifdef _KERNEL @@ -293,6 +294,7 @@ struct vm_map { vsize_t size; /* virtual size */ int ref_count; /* Reference count */ int flags; /* flags */ + struct mutex flags_lock; /* flags lock */ unsigned int timestamp; /* Version number */ vaddr_t min_offset; /* First address in map. */ @@ -348,7 +350,9 @@ struct vm_map { #ifdef _KERNEL #define vm_map_modflags(map, set, clear) \ do { \ + mtx_enter(&(map)->flags_lock); \ (map)->flags = ((map)->flags | (set)) & ~(clear); \ + mtx_leave(&(map)->flags_lock); \ } while (0) #endif /* _KERNEL */ |