diff options
Diffstat (limited to 'sys/vm/vm_map.c')
| -rw-r--r-- | sys/vm/vm_map.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c index 6c53b7f..f1f5b51 100644 --- a/sys/vm/vm_map.c +++ b/sys/vm/vm_map.c @@ -2179,9 +2179,14 @@ vm_map_remove(vm_map_t map, vm_offset_t start, vm_offset_t end) /* * vm_map_check_protection: * - * Assert that the target map allows the specified - * privilege on the entire address region given. - * The entire region must be allocated. + * Assert that the target map allows the specified privilege on the + * entire address region given. The entire region must be allocated. + * + * WARNING! This code does not and should not check whether the + * contents of the region is accessible. For example a smaller file + * might be mapped into a larger address space. + * + * NOTE! This code is also called by munmap(). */ boolean_t vm_map_check_protection(vm_map_t map, vm_offset_t start, vm_offset_t end, |
