aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--block/io.c171
-rw-r--r--block/trace-events3
-rw-r--r--include/block/block.h8
3 files changed, 0 insertions, 182 deletions
diff --git a/block/io.c b/block/io.c
index e158ae0174..132bcbbd7a 100644
--- a/block/io.c
+++ b/block/io.c
@@ -34,14 +34,6 @@
#define NOT_DONE 0x7fffffff /* used while emulated sync operation in progress */
-static BlockAIOCB *bdrv_co_aio_prw_vector(BdrvChild *child,
- int64_t offset,
- QEMUIOVector *qiov,
- BdrvRequestFlags flags,
- BlockCompletionFunc *cb,
- void *opaque,
- bool is_write);
-static void coroutine_fn bdrv_co_do_rw(void *opaque);
static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs,
int64_t offset, int count, BdrvRequestFlags flags);
@@ -2080,28 +2072,6 @@ int bdrv_readv_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos)
/**************************************************************/
/* async I/Os */
-BlockAIOCB *bdrv_aio_readv(BdrvChild *child, int64_t sector_num,
- QEMUIOVector *qiov, int nb_sectors,
- BlockCompletionFunc *cb, void *opaque)
-{
- trace_bdrv_aio_readv(child->bs, sector_num, nb_sectors, opaque);
-
- assert(nb_sectors << BDRV_SECTOR_BITS == qiov->size);
- return bdrv_co_aio_prw_vector(child, sector_num << BDRV_SECTOR_BITS, qiov,
- 0, cb, opaque, false);
-}
-
-BlockAIOCB *bdrv_aio_writev(BdrvChild *child, int64_t sector_num,
- QEMUIOVector *qiov, int nb_sectors,
- BlockCompletionFunc *cb, void *opaque)
-{
- trace_bdrv_aio_writev(child->bs, sector_num, nb_sectors, opaque);
-
- assert(nb_sectors << BDRV_SECTOR_BITS == qiov->size);
- return bdrv_co_aio_prw_vector(child, sector_num << BDRV_SECTOR_BITS, qiov,
- 0, cb, opaque, true);
-}
-
void bdrv_aio_cancel(BlockAIOCB *acb)
{
qemu_aio_ref(acb);
@@ -2134,147 +2104,6 @@ void bdrv_aio_cancel_async(BlockAIOCB *acb)
}
/**************************************************************/
-/* async block device emulation */
-
-typedef struct BlockRequest {
- union {
- /* Used during read, write, trim */
- struct {
- int64_t offset;
- int bytes;
- int flags;
- QEMUIOVector *qiov;
- };
- /* Used during ioctl */
- struct {
- int req;
- void *buf;
- };
- };
- BlockCompletionFunc *cb;
- void *opaque;
-
- int error;
-} BlockRequest;
-
-typedef struct BlockAIOCBCoroutine {
- BlockAIOCB common;
- BdrvChild *child;
- BlockRequest req;
- bool is_write;
- bool need_bh;
- bool *done;
-} BlockAIOCBCoroutine;
-
-static const AIOCBInfo bdrv_em_co_aiocb_info = {
- .aiocb_size = sizeof(BlockAIOCBCoroutine),
-};
-
-static void bdrv_co_complete(BlockAIOCBCoroutine *acb)
-{
- if (!acb->need_bh) {
- bdrv_dec_in_flight(acb->common.bs);
- acb->common.cb(acb->common.opaque, acb->req.error);
- qemu_aio_unref(acb);
- }
-}
-
-static void bdrv_co_em_bh(void *opaque)
-{
- BlockAIOCBCoroutine *acb = opaque;
-
- assert(!acb->need_bh);
- bdrv_co_complete(acb);
-}
-
-static void bdrv_co_maybe_schedule_bh(BlockAIOCBCoroutine *acb)
-{
- acb->need_bh = false;
- if (acb->req.error != -EINPROGRESS) {
- BlockDriverState *bs = acb->common.bs;
-
- aio_bh_schedule_oneshot(bdrv_get_aio_context(bs), bdrv_co_em_bh, acb);
- }
-}
-
-/* Invoke bdrv_co_do_readv/bdrv_co_do_writev */
-static void coroutine_fn bdrv_co_do_rw(void *opaque)
-{
- BlockAIOCBCoroutine *acb = opaque;
-
- if (!acb->is_write) {
- acb->req.error = bdrv_co_preadv(acb->child, acb->req.offset,
- acb->req.qiov->size, acb->req.qiov, acb->req.flags);
- } else {
- acb->req.error = bdrv_co_pwritev(acb->child, acb->req.offset,
- acb->req.qiov->size, acb->req.qiov, acb->req.flags);
- }
-
- bdrv_co_complete(acb);
-}
-
-static BlockAIOCB *bdrv_co_aio_prw_vector(BdrvChild *child,
- int64_t offset,
- QEMUIOVector *qiov,
- BdrvRequestFlags flags,
- BlockCompletionFunc *cb,
- void *opaque,
- bool is_write)
-{
- Coroutine *co;
- BlockAIOCBCoroutine *acb;
-
- /* Matched by bdrv_co_complete's bdrv_dec_in_flight. */
- bdrv_inc_in_flight(child->bs);
-
- acb = qemu_aio_get(&bdrv_em_co_aiocb_info, child->bs, cb, opaque);
- acb->child = child;
- acb->need_bh = true;
- acb->req.error = -EINPROGRESS;
- acb->req.offset = offset;
- acb->req.qiov = qiov;
- acb->req.flags = flags;
- acb->is_write = is_write;
-
- co = qemu_coroutine_create(bdrv_co_do_rw, acb);
- bdrv_coroutine_enter(child->bs, co);
-
- bdrv_co_maybe_schedule_bh(acb);
- return &acb->common;
-}
-
-static void coroutine_fn bdrv_aio_flush_co_entry(void *opaque)
-{
- BlockAIOCBCoroutine *acb = opaque;
- BlockDriverState *bs = acb->common.bs;
-
- acb->req.error = bdrv_co_flush(bs);
- bdrv_co_complete(acb);
-}
-
-BlockAIOCB *bdrv_aio_flush(BlockDriverState *bs,
- BlockCompletionFunc *cb, void *opaque)
-{
- trace_bdrv_aio_flush(bs, opaque);
-
- Coroutine *co;
- BlockAIOCBCoroutine *acb;
-
- /* Matched by bdrv_co_complete's bdrv_dec_in_flight. */
- bdrv_inc_in_flight(bs);
-
- acb = qemu_aio_get(&bdrv_em_co_aiocb_info, bs, cb, opaque);
- acb->need_bh = true;
- acb->req.error = -EINPROGRESS;
-
- co = qemu_coroutine_create(bdrv_aio_flush_co_entry, acb);
- bdrv_coroutine_enter(bs, co);
-
- bdrv_co_maybe_schedule_bh(acb);
- return &acb->common;
-}
-
-/**************************************************************/
/* Coroutine block device emulation */
typedef struct FlushCo {
diff --git a/block/trace-events b/block/trace-events
index 9a71c7fb04..752de6a054 100644
--- a/block/trace-events
+++ b/block/trace-events
@@ -9,9 +9,6 @@ blk_co_preadv(void *blk, void *bs, int64_t offset, unsigned int bytes, int flags
blk_co_pwritev(void *blk, void *bs, int64_t offset, unsigned int bytes, int flags) "blk %p bs %p offset %"PRId64" bytes %u flags %x"
# block/io.c
-bdrv_aio_flush(void *bs, void *opaque) "bs %p opaque %p"
-bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
-bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
bdrv_co_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
bdrv_co_writev(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
bdrv_co_pwrite_zeroes(void *bs, int64_t offset, int count, int flags) "bs %p offset %"PRId64" count %d flags %#x"
diff --git a/include/block/block.h b/include/block/block.h
index a4f09df95a..623e7fca97 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -353,14 +353,6 @@ BlockDriverState *check_to_replace_node(BlockDriverState *parent_bs,
const char *node_name, Error **errp);
/* async block I/O */
-BlockAIOCB *bdrv_aio_readv(BdrvChild *child, int64_t sector_num,
- QEMUIOVector *iov, int nb_sectors,
- BlockCompletionFunc *cb, void *opaque);
-BlockAIOCB *bdrv_aio_writev(BdrvChild *child, int64_t sector_num,
- QEMUIOVector *iov, int nb_sectors,
- BlockCompletionFunc *cb, void *opaque);
-BlockAIOCB *bdrv_aio_flush(BlockDriverState *bs,
- BlockCompletionFunc *cb, void *opaque);
void bdrv_aio_cancel(BlockAIOCB *acb);
void bdrv_aio_cancel_async(BlockAIOCB *acb);
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-29 08:45:29 +0000