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only attach to the process to be queried when necessary

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svn path=/trunk/; revision=13421
This commit is contained in:
Thomas Bluemel 2005-02-05 10:31:37 +00:00
parent 7cd9c86676
commit bb766d5404
2 changed files with 10 additions and 6 deletions
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4
reactos/ntoskrnl/ke/spinlock.c
View file

@ -195,9 +195,7 @@ KiAcquireSpinLock(PKSPIN_LOCK SpinLock)
: :
: "r" (SpinLock)); : "r" (SpinLock));
#else #else
while (0 != *(volatile PKSPIN_LOCK)SpinLock) while (0 != *(volatile KSPIN_LOCK*)SpinLock);
{
}
#endif #endif
#else #else
DbgPrint("Spinning on spinlock %x current value %x\n", SpinLock, i); DbgPrint("Spinning on spinlock %x current value %x\n", SpinLock, i);

6
reactos/ntoskrnl/ps/process.c
View file

@ -1613,10 +1613,14 @@ NtQueryInformationProcess(IN HANDLE ProcessHandle,
{ {
PRTL_USER_PROCESS_PARAMETERS ProcParams = NULL; PRTL_USER_PROCESS_PARAMETERS ProcParams = NULL;
UNICODE_STRING LocalDest; UNICODE_STRING LocalDest;
BOOLEAN Attached;
ULONG ImagePathLen = 0; ULONG ImagePathLen = 0;
PUNICODE_STRING DstPath = (PUNICODE_STRING)ProcessInformation; PUNICODE_STRING DstPath = (PUNICODE_STRING)ProcessInformation;
/* we need to attach to the process to make sure we're in the right context! */ /* we need to attach to the process to make sure we're in the right context! */
Attached = Process != PsGetCurrentProcess();
if(Attached)
KeAttachProcess(&Process->Pcb); KeAttachProcess(&Process->Pcb);
_SEH_TRY _SEH_TRY
@ -1677,6 +1681,7 @@ NtQueryInformationProcess(IN HANDLE ProcessHandle,
_SEH_END; _SEH_END;
/* detach from the process */ /* detach from the process */
if(Attached)
KeDetachProcess(); KeDetachProcess();
/* only copy the string back to the caller if we were able to /* only copy the string back to the caller if we were able to
@ -1715,6 +1720,7 @@ NtQueryInformationProcess(IN HANDLE ProcessHandle,
} }
/* don't forget to detach from the process!!! */ /* don't forget to detach from the process!!! */
if(Attached)
KeDetachProcess(); KeDetachProcess();
} }
else else