Function Ext2DeleteFile

Ext4Fsd/fileinfo.c:1905–2085

}

NTSTATUS
Ext2DeleteFile(
    PEXT2_IRP_CONTEXT IrpContext,
    PEXT2_VCB         Vcb,
    PEXT2_FCB         Fcb,
    PEXT2_MCB         Mcb
)
{
    PEXT2_FCB       Dcb = NULL;

    NTSTATUS        Status = STATUS_UNSUCCESSFUL;

    BOOLEAN         VcbResourceAcquired = FALSE;
    BOOLEAN         FcbPagingIoAcquired = FALSE;
    BOOLEAN         FcbResourceAcquired = FALSE;
    BOOLEAN         DcbResourceAcquired = FALSE;

    LARGE_INTEGER   Size;
    LARGE_INTEGER   SysTime;

    BOOLEAN         bFcbLockAcquired = FALSE;

    DEBUG(DL_INF, ( "Ext2DeleteFile: File %wZ (%xh) will be deleted!\n",
                    &Mcb->FullName, Mcb->Inode.i_ino));

    if (IsFlagOn(Mcb->Flags, MCB_FILE_DELETED)) {
        return STATUS_SUCCESS;
    }

    if (!IsMcbSymLink(Mcb) && IsMcbDirectory(Mcb)) {
        if (!Ext2IsDirectoryEmpty(IrpContext, Vcb, Mcb)) {
            return STATUS_DIRECTORY_NOT_EMPTY;
        }
    }

    __try {

        Ext2ReferMcb(Mcb);

        ExAcquireResourceExclusiveLite(&Vcb->MainResource, TRUE);
        VcbResourceAcquired = TRUE;

        ExAcquireResourceExclusiveLite(&Vcb->FcbLock, TRUE);
        bFcbLockAcquired = TRUE;

        /* Mcb->Parent could be NULL when working with layered file systems */
        if (Mcb->Parent) {
            Dcb = Mcb->Parent->Fcb;
            if (!Dcb)
                Dcb = Ext2AllocateFcb(Vcb, Mcb->Parent);
        }
        if (Dcb)
            Ext2ReferXcb(&Dcb->ReferenceCount);

        if (bFcbLockAcquired) {
            ExReleaseResourceLite(&Vcb->FcbLock);
            bFcbLockAcquired = FALSE;
        }