Revision c16b5a2c dma-helpers.c
| b/dma-helpers.c | ||
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#include "dma.h" |
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#include "block_int.h" |
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static AIOPool dma_aio_pool; |
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void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint) |
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{
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qsg->sg = qemu_malloc(alloc_hint * sizeof(ScatterGatherEntry)); |
| ... | ... | |
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} |
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} |
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static void dma_aio_cancel(BlockDriverAIOCB *acb) |
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{
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DMAAIOCB *dbs = container_of(acb, DMAAIOCB, common); |
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if (dbs->acb) {
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bdrv_aio_cancel(dbs->acb); |
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} |
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} |
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static AIOPool dma_aio_pool = {
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.aiocb_size = sizeof(DMAAIOCB), |
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.cancel = dma_aio_cancel, |
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}; |
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static BlockDriverAIOCB *dma_bdrv_io( |
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BlockDriverState *bs, QEMUSGList *sg, uint64_t sector_num, |
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BlockDriverCompletionFunc *cb, void *opaque, |
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int is_write) |
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{
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DMAAIOCB *dbs = qemu_aio_get_pool(&dma_aio_pool, bs, cb, opaque);
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DMAAIOCB *dbs = qemu_aio_get(&dma_aio_pool, bs, cb, opaque); |
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dbs->acb = NULL; |
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dbs->bs = bs; |
| ... | ... | |
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{
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return dma_bdrv_io(bs, sg, sector, cb, opaque, 1); |
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} |
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static void dma_aio_cancel(BlockDriverAIOCB *acb) |
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{
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DMAAIOCB *dbs = container_of(acb, DMAAIOCB, common); |
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if (dbs->acb) {
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bdrv_aio_cancel(dbs->acb); |
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} |
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} |
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void dma_helper_init(void) |
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{
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aio_pool_init(&dma_aio_pool, sizeof(DMAAIOCB), dma_aio_cancel); |
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} |
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