> Cancel routines are called with the cancel spinlock held and must release it 
> at some point during their execution.
> http://msdn.microsoft.com/en-us/library/windows/hardware/ff540742(v=vs.85).aspx

Ok, nice to know, thanks Thomas :)

Hermès

-----Message d'origine-----
De : ros-dev-boun...@reactos.org [mailto:ros-dev-boun...@reactos.org] De la 
part de Thomas Faber
Envoyé : vendredi 20 septembre 2013 11:53
À : ReactOS Development List
Objet : [SPAM]Re: [ros-dev] [ros-diffs] [tfaber] 60231: [NPFS] - Release cancel 
spinlock in NpCancelListeningQueueIrp

Yay someone actually reviewing code :D

Cancel routines are called with the cancel spinlock held and must release it at 
some point during their execution.

http://msdn.microsoft.com/en-us/library/windows/hardware/ff540742(v=vs.85).aspx

On 2013-09-20 11:53, Hermès BÉLUSCA - MAÏTO wrote:
> I think a call to IoReleaseCancelSpinLock should be balanced with a 
> call to IoAcquireCancelSpinLock somewhere in the npfs_new code, however, 
> looking at:
> 
> http://git.reactos.org/?p=reactos.git
> <http://git.reactos.org/?p=reactos.git&a=search&h=HEAD&st=grep&s=IoAcq
> uireCa
> ncelSpinLock> &a=search&h=HEAD&st=grep&s=IoAcquireCancelSpinLock
> 
> I don’t see any call to IoAcquireCancelSpinLock in npfs_new. Can 
> someone explain to me, why ?
> 
>  
> 
> Hermès
> 
>  
> 
>  
> 
> Author: tfaber
> 
> Date: Fri Sep 20 06:49:21 2013
> 
> New Revision: 60231
> 
>  
> 
> URL: http://svn.reactos.org/svn/reactos?rev=60231&view=rev
> 
> Log:
> 
> [NPFS]
> 
> - Release cancel spinlock in NpCancelListeningQueueIrp
> 
>  
> 
> Modified:
> 
>     trunk/reactos/drivers/filesystems/npfs_new/statesup.c
> 
>  
> 
> Modified: trunk/reactos/drivers/filesystems/npfs_new/statesup.c
> 
> URL:
> http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/n
> pfs_ne w/statesup.c?rev=60231&r1=60230&r2=60231&view=diff
> 
> ======================================================================
> ======
> ==
> 
> --- trunk/reactos/drivers/filesystems/npfs_new/statesup.c     [iso-8859-1]
> (original)
> 
> +++ trunk/reactos/drivers/filesystems/npfs_new/statesup.c  
> +++ [iso-8859-1] Fri
> Sep 20 06:49:21 2013
> 
> @@ -20,6 +20,8 @@
> 
> NpCancelListeningQueueIrp(IN PDEVICE_OBJECT DeviceObject,
> 
>                            IN PIRP Irp)
> 
> {
> 
> +    IoReleaseCancelSpinLock(Irp->CancelIrql);
> 
> +
> 
>      FsRtlEnterFileSystem();
> 
>      NpAcquireExclusiveVcb();


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