diff options
| author | Klemens Nanni <kn@cvs.openbsd.org> | 2022-12-17 13:43:00 +0000 |
|---|---|---|
| committer | Klemens Nanni <kn@cvs.openbsd.org> | 2022-12-17 13:43:00 +0000 |
| commit | 9094c79edda1c02c893982913f8d8b6ecf4badc8 (patch) | |
| tree | 284341275ab042eb31fa6b1e4c502c2300bd76f3 /sys/kern/syscalls.master | |
| parent | b44c07b646c53945cd1568f3f673a2ebc4cc7064 (diff) | |
Unlock minherit(2)
struct uvm_map's .addr is protected by the map's lock and .{min,max}_offset
are immutable.
uvm_map_inherit() locks the VM map upon entry, sets the desired inheritance
mode for the given address range (validated outside the lock) and unlocks
the map itself.
fork(2), i.e. uvm_mapent_forkcopy(), first locks both old and new maps and
then copies entries over as per the inheritance type.
futex(2), another user of struct vm_map_entry's .inheritance member, also
locks the map accordingly.
OK mpi
Diffstat (limited to 'sys/kern/syscalls.master')
| -rw-r--r-- | sys/kern/syscalls.master | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master index 99554dbfc27..85bae7ec8ab 100644 --- a/sys/kern/syscalls.master +++ b/sys/kern/syscalls.master @@ -1,4 +1,4 @@ -; $OpenBSD: syscalls.master,v 1.237 2022/11/30 10:20:37 mvs Exp $ +; $OpenBSD: syscalls.master,v 1.238 2022/12/17 13:42:59 kn Exp $ ; $NetBSD: syscalls.master,v 1.32 1996/04/23 10:24:21 mycroft Exp $ ; @(#)syscalls.master 8.2 (Berkeley) 1/13/94 @@ -445,7 +445,7 @@ 247 UNIMPL 248 UNIMPL 249 UNIMPL -250 STD { int sys_minherit(void *addr, size_t len, \ +250 STD NOLOCK { int sys_minherit(void *addr, size_t len, \ int inherit); } 251 OBSOL rfork 252 STD { int sys_poll(struct pollfd *fds, \ |