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-rw-r--r--block/qcow.c52
-rw-r--r--block/qcow2.c38
2 files changed, 27 insertions, 63 deletions
diff --git a/block/qcow.c b/block/qcow.c
index 8f2bdfda51..1e06dc92a5 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -505,28 +505,12 @@ typedef struct QCowAIOCB {
BlockDriverAIOCB *hd_aiocb;
} QCowAIOCB;
-static void qcow_aio_cancel(BlockDriverAIOCB *blockacb)
-{
- QCowAIOCB *acb = container_of(blockacb, QCowAIOCB, common);
- if (acb->hd_aiocb)
- bdrv_aio_cancel(acb->hd_aiocb);
- qemu_aio_release(acb);
-}
-
-static AIOPool qcow_aio_pool = {
- .aiocb_size = sizeof(QCowAIOCB),
- .cancel = qcow_aio_cancel,
-};
-
static QCowAIOCB *qcow_aio_setup(BlockDriverState *bs,
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
- int is_write)
+ int is_write, QCowAIOCB *acb)
{
- QCowAIOCB *acb;
-
- acb = qemu_aio_get(&qcow_aio_pool, bs, NULL, NULL);
- if (!acb)
- return NULL;
+ memset(acb, 0, sizeof(*acb));
+ acb->common.bs = bs;
acb->hd_aiocb = NULL;
acb->sector_num = sector_num;
acb->qiov = qiov;
@@ -545,9 +529,8 @@ static QCowAIOCB *qcow_aio_setup(BlockDriverState *bs,
return acb;
}
-static int qcow_aio_read_cb(void *opaque)
+static int qcow_aio_read_cb(QCowAIOCB *acb)
{
- QCowAIOCB *acb = opaque;
BlockDriverState *bs = acb->common.bs;
BDRVQcowState *s = bs->opaque;
int index_in_cluster;
@@ -636,29 +619,27 @@ static int qcow_co_readv(BlockDriverState *bs, int64_t sector_num,
int nb_sectors, QEMUIOVector *qiov)
{
BDRVQcowState *s = bs->opaque;
- QCowAIOCB *acb;
+ QCowAIOCB acb;
int ret;
- acb = qcow_aio_setup(bs, sector_num, qiov, nb_sectors, 0);
+ qcow_aio_setup(bs, sector_num, qiov, nb_sectors, 0, &acb);
qemu_co_mutex_lock(&s->lock);
do {
- ret = qcow_aio_read_cb(acb);
+ ret = qcow_aio_read_cb(&acb);
} while (ret > 0);
qemu_co_mutex_unlock(&s->lock);
- if (acb->qiov->niov > 1) {
- qemu_iovec_from_buffer(acb->qiov, acb->orig_buf, acb->qiov->size);
- qemu_vfree(acb->orig_buf);
+ if (acb.qiov->niov > 1) {
+ qemu_iovec_from_buffer(acb.qiov, acb.orig_buf, acb.qiov->size);
+ qemu_vfree(acb.orig_buf);
}
- qemu_aio_release(acb);
return ret;
}
-static int qcow_aio_write_cb(void *opaque)
+static int qcow_aio_write_cb(QCowAIOCB *acb)
{
- QCowAIOCB *acb = opaque;
BlockDriverState *bs = acb->common.bs;
BDRVQcowState *s = bs->opaque;
int index_in_cluster;
@@ -716,23 +697,22 @@ static int qcow_co_writev(BlockDriverState *bs, int64_t sector_num,
int nb_sectors, QEMUIOVector *qiov)
{
BDRVQcowState *s = bs->opaque;
- QCowAIOCB *acb;
+ QCowAIOCB acb;
int ret;
s->cluster_cache_offset = -1; /* disable compressed cache */
- acb = qcow_aio_setup(bs, sector_num, qiov, nb_sectors, 1);
+ qcow_aio_setup(bs, sector_num, qiov, nb_sectors, 1, &acb);
qemu_co_mutex_lock(&s->lock);
do {
- ret = qcow_aio_write_cb(acb);
+ ret = qcow_aio_write_cb(&acb);
} while (ret > 0);
qemu_co_mutex_unlock(&s->lock);
- if (acb->qiov->niov > 1) {
- qemu_vfree(acb->orig_buf);
+ if (acb.qiov->niov > 1) {
+ qemu_vfree(acb.orig_buf);
}
- qemu_aio_release(acb);
return ret;
}
diff --git a/block/qcow2.c b/block/qcow2.c
index 01ea2658b0..f4e3c06ad8 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -392,17 +392,6 @@ typedef struct QCowAIOCB {
QLIST_ENTRY(QCowAIOCB) next_depend;
} QCowAIOCB;
-static void qcow2_aio_cancel(BlockDriverAIOCB *blockacb)
-{
- QCowAIOCB *acb = container_of(blockacb, QCowAIOCB, common);
- qemu_aio_release(acb);
-}
-
-static AIOPool qcow2_aio_pool = {
- .aiocb_size = sizeof(QCowAIOCB),
- .cancel = qcow2_aio_cancel,
-};
-
/*
* Returns 0 when the request is completed successfully, 1 when there is still
* a part left to do and -errno in error cases.
@@ -532,13 +521,10 @@ static int qcow2_aio_read_cb(QCowAIOCB *acb)
static QCowAIOCB *qcow2_aio_setup(BlockDriverState *bs, int64_t sector_num,
QEMUIOVector *qiov, int nb_sectors,
BlockDriverCompletionFunc *cb,
- void *opaque, int is_write)
+ void *opaque, int is_write, QCowAIOCB *acb)
{
- QCowAIOCB *acb;
-
- acb = qemu_aio_get(&qcow2_aio_pool, bs, cb, opaque);
- if (!acb)
- return NULL;
+ memset(acb, 0, sizeof(*acb));
+ acb->common.bs = bs;
acb->sector_num = sector_num;
acb->qiov = qiov;
acb->is_write = is_write;
@@ -558,19 +544,18 @@ static int qcow2_co_readv(BlockDriverState *bs, int64_t sector_num,
int nb_sectors, QEMUIOVector *qiov)
{
BDRVQcowState *s = bs->opaque;
- QCowAIOCB *acb;
+ QCowAIOCB acb;
int ret;
- acb = qcow2_aio_setup(bs, sector_num, qiov, nb_sectors, NULL, NULL, 0);
+ qcow2_aio_setup(bs, sector_num, qiov, nb_sectors, NULL, NULL, 0, &acb);
qemu_co_mutex_lock(&s->lock);
do {
- ret = qcow2_aio_read_cb(acb);
+ ret = qcow2_aio_read_cb(&acb);
} while (ret > 0);
qemu_co_mutex_unlock(&s->lock);
- qemu_iovec_destroy(&acb->hd_qiov);
- qemu_aio_release(acb);
+ qemu_iovec_destroy(&acb.hd_qiov);
return ret;
}
@@ -674,20 +659,19 @@ static int qcow2_co_writev(BlockDriverState *bs,
QEMUIOVector *qiov)
{
BDRVQcowState *s = bs->opaque;
- QCowAIOCB *acb;
+ QCowAIOCB acb;
int ret;
- acb = qcow2_aio_setup(bs, sector_num, qiov, nb_sectors, NULL, NULL, 1);
+ qcow2_aio_setup(bs, sector_num, qiov, nb_sectors, NULL, NULL, 1, &acb);
s->cluster_cache_offset = -1; /* disable compressed cache */
qemu_co_mutex_lock(&s->lock);
do {
- ret = qcow2_aio_write_cb(acb);
+ ret = qcow2_aio_write_cb(&acb);
} while (ret > 0);
qemu_co_mutex_unlock(&s->lock);
- qemu_iovec_destroy(&acb->hd_qiov);
- qemu_aio_release(acb);
+ qemu_iovec_destroy(&acb.hd_qiov);
return ret;
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-11 07:21:47 +0000