FLT_PARAMETERS for IRP_MJ_ACQUIRE_FOR_SECTION_SYNCHRONIZATION union
The following union component is used when the MajorFunction field of the FLT_IO_PARAMETER_BLOCK structure for the operation is IRP_MJ_ACQUIRE_FOR_SECTION_SYNCHRONIZATION.
Syntax
typedef union _FLT_PARAMETERS {
... ;
struct {
FS_FILTER_SECTION_SYNC_TYPE SyncType;
ULONG POINTER_ALIGNMENT PageProtection;
PFS_FILTER_SECTION_SYNC_OUTPUT OutputInformation;
} AcquireForSectionSynchronization;
... ;
} FLT_PARAMETERS, *PFLT_PARAMETERS;
Members
SyncType: The type of synchronization requested for the section. This parameter is set to SyncTypeCreateSection if a section is being created; otherwise, it is set to SyncTypeOther.
PageProtection: The type of page protection requested for the section. Must be zero if SyncType is SyncTypeOther. Otherwise, this parameter must be one of the defined memory protection constant values.
OutputInformation: A FS_FILTER_SECTION_SYNC_OUTPUT structure that specifies information describing the attributes of the section that is being created.
Remarks
The FLT_PARAMETERS structure for IRP_MJ_ACQUIRE_FOR_SECTION_SYNCHRONIZATION operations contains the parameters for an AcquireForSectionSynchronization operation represented by a callback data (FLT_CALLBACK_DATA) structure. It is contained in an FLT_IO_PARAMETER_BLOCK structure.
IRP_MJ_ACQUIRE_FOR_SECTION_SYNCHRONIZATION is a file system (FSFilter) callback operation.
If the enumerated value of the SyncType member is set to SyncTypeOther, a file system minifilter or legacy filter driver cannot fail this operation. If SyncType is set to SyncTypeCreateSection, a file system minifilter or legacy filter driver is allowed to fail with a STATUS_INSUFFICIENT_RESOURCES error if there is not enough memory to create the section.
For more information about FSFilter callback operations, see the reference entry for FsRtlRegisterFileSystemFilterCallbacks.
Requirements
Version: Available in Windows XP and later versions of the Windows operating system.
| Requirement type | Requirement |
|---|---|
| Header | Fltkernel.h (include Fltkernel.h) |