Am 19.05.2011 10:58, schrieb Christoph Hellwig:
> Add support for TRIM sub function of the data set management command,
> and wire it up to the qemu discard infrastructure.
>
> Signed-off-by: Christoph Hellwig <h...@lst.de>
> Index: qemu/hw/ide/pci.c
> ===================================================================
> --- qemu.orig/hw/ide/pci.c 2011-05-18 20:28:17.153625872 +0200
> +++ qemu/hw/ide/pci.c 2011-05-18 20:33:06.102141553 +0200
> @@ -205,6 +205,9 @@ static void bmdma_restart_bh(void *opaqu
> }
> } else if (bm->status & BM_STATUS_RETRY_FLUSH) {
> ide_flush_cache(bmdma_active_if(bm));
> + } else if (bm->status & BM_STATUS_RETRY_TRIM) {
> + bm->status &= ~BM_STATUS_RETRY_TRIM;
> + bmdma_restart_dma(bm, IDE_DMA_TRIM);
> }
> }
Just noticed that this is wrong. BM_STATUS_DMA_RETRY is always set at
the same time, so this is dead code.
Kevin
