diff options
Diffstat (limited to 'block/quorum.c')
| -rw-r--r-- | block/quorum.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/block/quorum.c b/block/quorum.c index 99e0e03cdf..fd19662bcb 100644 --- a/block/quorum.c +++ b/block/quorum.c @@ -91,10 +91,18 @@ static AIOCBInfo quorum_aiocb_info = { static void quorum_aio_finalize(QuorumAIOCB *acb) { - int ret = 0; + BDRVQuorumState *s = acb->common.bs->opaque; + int i, ret = 0; acb->common.cb(acb->common.opaque, ret); + if (acb->is_read) { + for (i = 0; i < s->num_children; i++) { + qemu_vfree(acb->qcrs[i].buf); + qemu_iovec_destroy(&acb->qcrs[i].qiov); + } + } + g_free(acb->qcrs); qemu_aio_release(acb); } @@ -149,6 +157,34 @@ static void quorum_aio_cb(void *opaque, int ret) quorum_aio_finalize(acb); } +static BlockDriverAIOCB *quorum_aio_readv(BlockDriverState *bs, + int64_t sector_num, + QEMUIOVector *qiov, + int nb_sectors, + BlockDriverCompletionFunc *cb, + void *opaque) +{ + BDRVQuorumState *s = bs->opaque; + QuorumAIOCB *acb = quorum_aio_get(s, bs, qiov, sector_num, + nb_sectors, cb, opaque); + int i; + + acb->is_read = true; + + for (i = 0; i < s->num_children; i++) { + acb->qcrs[i].buf = qemu_blockalign(s->bs[i], qiov->size); + qemu_iovec_init(&acb->qcrs[i].qiov, qiov->niov); + qemu_iovec_clone(&acb->qcrs[i].qiov, qiov, acb->qcrs[i].buf); + } + + for (i = 0; i < s->num_children; i++) { + bdrv_aio_readv(s->bs[i], sector_num, qiov, nb_sectors, + quorum_aio_cb, &acb->qcrs[i]); + } + + return &acb->common; +} + static BlockDriverAIOCB *quorum_aio_writev(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov, @@ -176,6 +212,7 @@ static BlockDriver bdrv_quorum = { .instance_size = sizeof(BDRVQuorumState), + .bdrv_aio_readv = quorum_aio_readv, .bdrv_aio_writev = quorum_aio_writev, }; |