[pschweitzer] 67883: [NTFS] Use non-paged lookaside list for IRP context allocation

Author: pschweitzer
Date: Sun May 24 15:26:15 2015
New Revision: 67883

URL: http://svn.reactos.org/svn/reactos?rev=67883&view=rev
Log:
[NTFS]
Use non-paged lookaside list for IRP context allocation

Modified:
    trunk/reactos/drivers/filesystems/ntfs/dispatch.c
    trunk/reactos/drivers/filesystems/ntfs/misc.c
    trunk/reactos/drivers/filesystems/ntfs/ntfs.c
    trunk/reactos/drivers/filesystems/ntfs/ntfs.h

Modified: trunk/reactos/drivers/filesystems/ntfs/dispatch.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/d…
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/dispatch.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/ntfs/dispatch.c	[iso-8859-1] Sun May 24 15:26:15
2015
@@ -117,7 +117,7 @@
     }
     else
     {
-        ExFreePoolWithTag(IrpContext, 'PRIN');
+        ExFreeToNPagedLookasideList(&NtfsGlobalData->IrpContextLookasideList,
IrpContext);
     }
 
     IoSetTopLevelIrp(NULL);

Modified: trunk/reactos/drivers/filesystems/ntfs/misc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/m…
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/misc.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/ntfs/misc.c	[iso-8859-1] Sun May 24 15:26:15 2015
@@ -70,9 +70,7 @@
 
     TRACE_(NTFS, "NtfsAllocateIrpContext()\n");
 
-    IrpContext = (PNTFS_IRP_CONTEXT)ExAllocatePoolWithTag(NonPagedPool,
-                                                          sizeof(NTFS_IRP_CONTEXT),
-                                                          'PRIN');
+    IrpContext =
(PNTFS_IRP_CONTEXT)ExAllocateFromNPagedLookasideList(&NtfsGlobalData->IrpContextLookasideList);
     if (IrpContext == NULL)
         return NULL;
 

Modified: trunk/reactos/drivers/filesystems/ntfs/ntfs.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/n…
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/ntfs.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/ntfs/ntfs.c	[iso-8859-1] Sun May 24 15:26:15 2015
@@ -96,6 +96,10 @@
     NtfsGlobalData->FastIoDispatch.FastIoWrite = NtfsFastIoWrite;
     DriverObject->FastIoDispatch = &NtfsGlobalData->FastIoDispatch;
 
+    /* Initialize lookaside list for IRP contexts */
+    ExInitializeNPagedLookasideList(&NtfsGlobalData->IrpContextLookasideList,
+                                    NULL, NULL, 0, sizeof(NTFS_IRP_CONTEXT),
'PRIN', 0);
+
     /* Driver can't be unloaded */
     DriverObject->DriverUnload = NULL;
 

Modified: trunk/reactos/drivers/filesystems/ntfs/ntfs.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/n…
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/ntfs.h	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/ntfs/ntfs.h	[iso-8859-1] Sun May 24 15:26:15 2015
@@ -137,6 +137,7 @@
     CACHE_MANAGER_CALLBACKS CacheMgrCallbacks;
     ULONG Flags;
     FAST_IO_DISPATCH FastIoDispatch;
+    NPAGED_LOOKASIDE_LIST IrpContextLookasideList;
 } NTFS_GLOBAL_DATA, *PNTFS_GLOBAL_DATA;