in tunopen())
o Change the default device permissions to 0600 root:wheel
(were uucp:dialer)
o Only let root (suser()) change the MTU
This makes it possible for an administrator to open up the
permissions on /dev/tun*, letting non-root programs service
a tun interface. Co-operation is still required with a
priviledged program that will configure the interface side
of things.
* Optimise the return path for syscalls so that they only restore a minimal
set of registers instead of performing a full exception_return.
A new flag in the trapframe indicates that the frame only holds partial
state. When it is necessary to perform a full state restore (e.g. after an
execve or signal), the flag is cleared to force a full restore.
striped plexes. This prevents various panics introduced in the last
rewrite of the locking code.
Suffered by: "Niels Chr. Bank-Pedersen" <ncbp@bank-pedersen.dk>
- If possible, context switch to the thread directly in sched_ithd(),
rather than triggering a delayed ast reschedule.
- Disable interrupts while restoring fpu state in the trap handler,
in order to ensure that we are not preempted in the middle, which
could cause migration to another cpu.
Reviewed by: peter
Tested by: peter (alpha)
* Optimise the return path for syscalls so that they only restore a minimal
set of registers instead of performing a full exception_return.
A new flag in the trapframe indicates that the frame only holds partial
state. When it is necessary to perform a full state restore (e.g. after an
execve or signal), the flag is cleared to force a full restore.
Turn off semaphores. Nobody else implements them, and there is lots of
AML out there which does totally absurd things with them, meaning that
if we try to do the right thing we are guaranteed to fail.
Use acpi_EvaluateInteger where possible.
Use FuncName rather than &FuncName when passing function addresses.
Don't evaluate the _REG method when we attach to an address space -
AcpiInstallAddressSpaceHandler does it for us.
acpi_EvaluateInteger.
Use acpi_EvaluateInteger instead of doing things the hard way where
possible.
AcpiSetSystemSleepState (unofficial) becomes AcpiEnterSleepState.
Use the AcpiGbl_FADT pointer rather than searching for the FADT.
to 1GB. A box of mine is running with MAXDSIZ and DFLDSIZ increased
up to 1.5GB.
Wishlist: It would be nice to warn if MAXTSIZ + MAXDSIZ + MAXSSIZ
exceeds VM_MAXUSER_ADDRESS - VM_MINUSER_ADDRESS.
