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[NTOSKRNL]

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- Implement MiUnlockProcessWorkingSetShared() and make use of it in MiUnlockProcessWorkingSetForFault().
- Complete implementation of MiLockProcessWorkingSetForFault()

svn path=/trunk/; revision=60871
This commit is contained in:
Pierre Schweitzer 2013-11-05 22:03:42 +00:00
parent 54f8e25e93
commit 3683c7c49a
1 changed files with 37 additions and 5 deletions
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42
reactos/ntoskrnl/mm/ARM3/miarm.h
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@ -1192,6 +1192,30 @@ MiUnlockProcessWorkingSet(IN PEPROCESS Process,
KeLeaveGuardedRegion();
}
//
// Unlocks the working set for the given process
//
FORCEINLINE
VOID
MiUnlockProcessWorkingSetShared(IN PEPROCESS Process,
IN PETHREAD Thread)
{
/* Make sure we are the owner of a safe acquisition (because shared) */
ASSERT(MI_WS_OWNER(Process));
ASSERT(!MI_IS_WS_UNSAFE(Process));
/* Ensure we are in a shared acquisition */
ASSERT(Thread->OwnsProcessWorkingSetShared == TRUE);
ASSERT(Thread->OwnsProcessWorkingSetExclusive == FALSE);
/* Don't claim the lock anylonger */
Thread->OwnsProcessWorkingSetShared = FALSE;
/* Release the lock and re-enable APCs */
ExReleasePushLockShared(&Process->Vm.WorkingSetMutex);
KeLeaveGuardedRegion();
}
//
// Unlocks the working set for the given process
//
@ -1330,7 +1354,7 @@ MiUnlockProcessWorkingSetForFault(IN PEPROCESS Process,
else
{
/* Owner is shared (implies safe), release normally */
ASSERT(FALSE);
MiUnlockProcessWorkingSetShared(Process, Thread);
*Safe = TRUE;
*Shared = TRUE;
}
@ -1343,16 +1367,24 @@ MiLockProcessWorkingSetForFault(IN PEPROCESS Process,
IN BOOLEAN Safe,
IN BOOLEAN Shared)
{
ASSERT(Shared == FALSE);
/* Check if this was a safe lock or not */
if (Safe)
{
/* Reacquire safely */
MiLockProcessWorkingSet(Process, Thread);
if (Shared)
{
/* Reacquire safely & shared */
MiLockProcessWorkingSetShared(Process, Thread);
}
else
{
/* Reacquire safely */
MiLockProcessWorkingSet(Process, Thread);
}
}
else
{
/* Unsafe lock cannot be shared */
ASSERT(Shared == FALSE);
/* Reacquire unsafely */
MiLockProcessWorkingSetUnsafe(Process, Thread);
}