Function Ext2WriteInode

Ext4Fsd/write.c:651–743

}

NTSTATUS
Ext2WriteInode (
    IN PEXT2_IRP_CONTEXT    IrpContext,
    IN PEXT2_VCB            Vcb,
    IN PEXT2_MCB            Mcb,
    IN ULONGLONG            Offset,
    IN PVOID                Buffer,
    IN ULONG                Size,
    IN BOOLEAN              bDirectIo,
    OUT PULONG              BytesWritten
    )
{
    PEXT2_EXTENT    Chain = NULL;
    NTSTATUS        Status = STATUS_UNSUCCESSFUL;

    __try {

        if (BytesWritten) {
            *BytesWritten = 0;
        }

        Status = Ext2BuildExtents (
                     IrpContext,
                     Vcb,
                     Mcb,
                     Offset,
                     Size,
                     S_ISDIR(Mcb->Inode.i_mode) ? FALSE : TRUE,
                     &Chain
                 );

        if (!NT_SUCCESS(Status)) {
            __leave;
        }

        if (Chain == NULL) {
            Status = STATUS_SUCCESS;
            __leave;
        }

        if (bDirectIo) {

            ASSERT(IrpContext != NULL);

            //
            // We assume the offset is aligned.
            //

            Status = Ext2ReadWriteBlocks(
                         IrpContext,
                         Vcb,
                         Chain,
                         Size
                     );

        } else {

            PEXT2_EXTENT Extent;