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hw/nvme: reimplement flush to allow cancellation

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Prior to this patch, a broadcast flush would result in submitting
multiple "fire and forget" aios (no reference saved to the aiocbs
returned from the blk_aio_flush calls).

Fix this by issuing the flushes one after another.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Klaus Jensen 2021-06-17 21:06:47 +02:00
parent 3276dde4f2
commit 38f4ac65ac
3 changed files with 130 additions and 84 deletions
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2
hw/nvme/nvme.h
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@ -28,6 +28,8 @@
#define NVME_MAX_NAMESPACES 256
#define NVME_EUI64_DEFAULT ((uint64_t)0x5254000000000000)
QEMU_BUILD_BUG_ON(NVME_MAX_NAMESPACES > NVME_NSID_BROADCAST - 1);
typedef struct NvmeCtrl NvmeCtrl;
typedef struct NvmeNamespace NvmeNamespace;