Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-06-30 09:50:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

[NTFS]

Browse source 
Even more locking

svn path=/trunk/; revision=70779
This commit is contained in:
Pierre Schweitzer 2016-02-23 22:19:38 +00:00
parent 3d8efb5447
commit 5876421913
2 changed files with 21 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
reactos/drivers/filesystems/ntfs/dirctl.c
View file

@ -305,6 +305,12 @@ NtfsQueryDirectory(PNTFS_IRP_CONTEXT IrpContext)
return STATUS_NOT_IMPLEMENTED;
}
if (!ExAcquireResourceSharedLite(&Fcb->MainResource,
BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT)))
{
return STATUS_PENDING;
}
if (SearchPattern != NULL)
{
if (!Ccb->DirectorySearchPattern)
@ -316,6 +322,7 @@ NtfsQueryDirectory(PNTFS_IRP_CONTEXT IrpContext)
ExAllocatePoolWithTag(NonPagedPool, Pattern.MaximumLength, TAG_NTFS);
if (!Ccb->DirectorySearchPattern)
{
ExReleaseResourceLite(&Fcb->MainResource);
return STATUS_INSUFFICIENT_RESOURCES;
}
@ -329,6 +336,7 @@ NtfsQueryDirectory(PNTFS_IRP_CONTEXT IrpContext)
Ccb->DirectorySearchPattern = ExAllocatePoolWithTag(NonPagedPool, 2 * sizeof(WCHAR), TAG_NTFS);
if (!Ccb->DirectorySearchPattern)
{
ExReleaseResourceLite(&Fcb->MainResource);
return STATUS_INSUFFICIENT_RESOURCES;
}
@ -461,6 +469,8 @@ NtfsQueryDirectory(PNTFS_IRP_CONTEXT IrpContext)
Buffer0->NextEntryOffset = 0;
}
ExReleaseResourceLite(&Fcb->MainResource);
if (FileIndex > 0)
{
Status = STATUS_SUCCESS;

11
reactos/drivers/filesystems/ntfs/volinfo.c
View file

@ -246,6 +246,7 @@ NtfsQueryVolumeInformation(PNTFS_IRP_CONTEXT IrpContext)
NTSTATUS Status = STATUS_SUCCESS;
PVOID SystemBuffer;
ULONG BufferLength;
PDEVICE_EXTENSION DeviceExt;
DPRINT("NtfsQueryVolumeInformation() called\n");
@ -253,7 +254,15 @@ NtfsQueryVolumeInformation(PNTFS_IRP_CONTEXT IrpContext)
Irp = IrpContext->Irp;
DeviceObject = IrpContext->DeviceObject;
DeviceExt = DeviceObject->DeviceExtension;
Stack = IrpContext->Stack;
if (!ExAcquireResourceSharedLite(&DeviceExt->DirResource,
BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT)))
{
return NtfsMarkIrpContextForQueue(IrpContext);
}
FsInformationClass = Stack->Parameters.QueryVolume.FsInformationClass;
BufferLength = Stack->Parameters.QueryVolume.Length;
SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
@ -292,6 +301,8 @@ NtfsQueryVolumeInformation(PNTFS_IRP_CONTEXT IrpContext)
Status = STATUS_NOT_SUPPORTED;
}
ExReleaseResourceLite(&DeviceExt->DirResource);
if (NT_SUCCESS(Status))
Irp->IoStatus.Information =
Stack->Parameters.QueryVolume.Length - BufferLength;