diff options
| author | Frediano Ziglio <freddy77@gmail.com> | 2011-08-23 15:21:16 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-08-23 17:41:14 +0200 |
| commit | c2bdd9904b4c77389a7bffa5e6517cf1c1e2b420 (patch) | |
| tree | 86c58c19a04933f15c7095917b3dcd9dbada6c7c /block/qcow2.c | |
| parent | c227140397c7167479862632498b78a3d680ec57 (diff) | |
qcow2: remove cluster_offset from QCowAIOCB
Signed-off-by: Frediano Ziglio <freddy77@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow2.c')
| -rw-r--r-- | block/qcow2.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index 3068a58a7d..22da050dc8 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -382,7 +382,6 @@ typedef struct QCowAIOCB { QEMUIOVector *qiov; int remaining_sectors; uint64_t bytes_done; - uint64_t cluster_offset; uint8_t *cluster_data; QEMUIOVector hd_qiov; } QCowAIOCB; @@ -398,6 +397,7 @@ static int qcow2_aio_read_cb(QCowAIOCB *acb) int index_in_cluster, n1; int ret; int cur_nr_sectors; /* number of sectors in current iteration */ + uint64_t cluster_offset = 0; if (acb->remaining_sectors == 0) { /* request completed */ @@ -412,7 +412,7 @@ static int qcow2_aio_read_cb(QCowAIOCB *acb) } ret = qcow2_get_cluster_offset(bs, acb->sector_num << 9, - &cur_nr_sectors, &acb->cluster_offset); + &cur_nr_sectors, &cluster_offset); if (ret < 0) { return ret; } @@ -423,7 +423,7 @@ static int qcow2_aio_read_cb(QCowAIOCB *acb) qemu_iovec_copy(&acb->hd_qiov, acb->qiov, acb->bytes_done, cur_nr_sectors * 512); - if (!acb->cluster_offset) { + if (!cluster_offset) { if (bs->backing_hd) { /* read from the base image */ @@ -443,9 +443,9 @@ static int qcow2_aio_read_cb(QCowAIOCB *acb) /* Note: in this case, no need to wait */ qemu_iovec_memset(&acb->hd_qiov, 0, 512 * cur_nr_sectors); } - } else if (acb->cluster_offset & QCOW_OFLAG_COMPRESSED) { + } else if (cluster_offset & QCOW_OFLAG_COMPRESSED) { /* add AIO support for compressed blocks ? */ - ret = qcow2_decompress_cluster(bs, acb->cluster_offset); + ret = qcow2_decompress_cluster(bs, cluster_offset); if (ret < 0) { return ret; } @@ -454,7 +454,7 @@ static int qcow2_aio_read_cb(QCowAIOCB *acb) s->cluster_cache + index_in_cluster * 512, 512 * cur_nr_sectors); } else { - if ((acb->cluster_offset & 511) != 0) { + if ((cluster_offset & 511) != 0) { return -EIO; } @@ -478,7 +478,7 @@ static int qcow2_aio_read_cb(QCowAIOCB *acb) BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO); qemu_co_mutex_unlock(&s->lock); ret = bdrv_co_readv(bs->file, - (acb->cluster_offset >> 9) + index_in_cluster, + (cluster_offset >> 9) + index_in_cluster, cur_nr_sectors, &acb->hd_qiov); qemu_co_mutex_lock(&s->lock); if (ret < 0) { @@ -516,7 +516,6 @@ static QCowAIOCB *qcow2_aio_setup(BlockDriverState *bs, int64_t sector_num, acb->bytes_done = 0; acb->remaining_sectors = nb_sectors; - acb->cluster_offset = 0; return acb; } @@ -568,6 +567,7 @@ static int qcow2_aio_write_cb(QCowAIOCB *acb) int ret; int cur_nr_sectors; /* number of sectors in current iteration */ QCowL2Meta l2meta; + uint64_t cluster_offset; l2meta.nb_clusters = 0; qemu_co_queue_init(&l2meta.dependent_requests); @@ -589,8 +589,8 @@ static int qcow2_aio_write_cb(QCowAIOCB *acb) return ret; } - acb->cluster_offset = l2meta.cluster_offset; - assert((acb->cluster_offset & 511) == 0); + cluster_offset = l2meta.cluster_offset; + assert((cluster_offset & 511) == 0); qemu_iovec_reset(&acb->hd_qiov); qemu_iovec_copy(&acb->hd_qiov, acb->qiov, acb->bytes_done, @@ -616,7 +616,7 @@ static int qcow2_aio_write_cb(QCowAIOCB *acb) BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO); qemu_co_mutex_unlock(&s->lock); ret = bdrv_co_writev(bs->file, - (acb->cluster_offset >> 9) + index_in_cluster, + (cluster_offset >> 9) + index_in_cluster, cur_nr_sectors, &acb->hd_qiov); qemu_co_mutex_lock(&s->lock); if (ret < 0) { |