Searched hist:"4648 ba0a0f20a61d9fc0dcd26bbf00283d86e465" (Results 1 – 2 of 2) sorted by relevance
| /freebsd/sys/vm/ |
| H A D | vm_mmap.c | diff 4648ba0a0f20a61d9fc0dcd26bbf00283d86e465 Mon Jun 09 05:37:41 CEST 2014 Konstantin Belousov <kib@FreeBSD.org> Make mmap(MAP_STACK) search for the available address space, similar
to !MAP_STACK mapping requests. For MAP_STACK | MAP_FIXED, clear any
mappings which could previously exist in the used range.
For this, teach vm_map_find() and vm_map_fixed() to handle
MAP_STACK_GROWS_DOWN or _UP cow flags, by calling a new
vm_map_stack_locked() helper, which is factored out from
vm_map_stack().
The side effect of the change is that MAP_STACK started obeying
MAP_ALIGNMENT and MAP_32BIT flags.
Reported by: rwatson
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| H A D | vm_map.c | diff 4648ba0a0f20a61d9fc0dcd26bbf00283d86e465 Mon Jun 09 05:37:41 CEST 2014 Konstantin Belousov <kib@FreeBSD.org> Make mmap(MAP_STACK) search for the available address space, similar
to !MAP_STACK mapping requests. For MAP_STACK | MAP_FIXED, clear any
mappings which could previously exist in the used range.
For this, teach vm_map_find() and vm_map_fixed() to handle
MAP_STACK_GROWS_DOWN or _UP cow flags, by calling a new
vm_map_stack_locked() helper, which is factored out from
vm_map_stack().
The side effect of the change is that MAP_STACK started obeying
MAP_ALIGNMENT and MAP_32BIT flags.
Reported by: rwatson
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|