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Re: [Qemu-devel] [PATCH 1/5] block: add discard support
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH 1/5] block: add discard support |
Date: |
Thu, 25 Nov 2010 14:45:43 +0000 |
On Thu, Nov 25, 2010 at 1:57 PM, Christoph Hellwig <address@hidden> wrote:
> +int bdrv_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors)
> +{
> + if (!bs->drv || !bs->drv->bdrv_discard)
> + return 0;
!bs->drv is normally -ENOMEDIUM. Perhaps we shouldn't lump it in with
!bs->drv->bdrv_discard.
Stefan
- [Qemu-devel] [PATCH 0/5] add TRIM/UNMAP support, Christoph Hellwig, 2010/11/25
- [Qemu-devel] [PATCH 1/5] block: add discard support, Christoph Hellwig, 2010/11/25
- [Qemu-devel] [PATCH 2/5] scsi-disk: support WRITE SAME (16) with unmap bit, Christoph Hellwig, 2010/11/25
- [Qemu-devel] [PATCH 3/5] make dma_bdrv_io available to drivers, Christoph Hellwig, 2010/11/25
- [Qemu-devel] [PATCH 4/5] ide: add TRIM support, Christoph Hellwig, 2010/11/25
- [Qemu-devel] [PATCH 5/5] raw-posix: add discard support, Christoph Hellwig, 2010/11/25