diff options
| author | Max Reitz <mreitz@redhat.com> | 2017-11-23 03:08:19 +0100 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2018-01-23 12:34:43 +0100 |
| commit | 23c4b2a8967c59c801e665843e207dbfe1634952 (patch) | |
| tree | fe2f60d25fbb181dd753ed1070c44376e33cd6bd /block | |
| parent | 0abb1475f86eccee122bb0718b368db77b222a21 (diff) | |
| download | qemu-23c4b2a8967c59c801e665843e207dbfe1634952.tar.gz | |
block/vmdk: Add blkdebug events
This is certainly not complete, but it includes at least write_aio and
read_aio.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20171123020832.8165-5-mreitz@redhat.com
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/vmdk.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/block/vmdk.c b/block/vmdk.c index 1ae47b1c2e..d71cec4f31 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -1075,6 +1075,8 @@ static int get_whole_cluster(BlockDriverState *bs, /* Read backing data before skip range */ if (skip_start_bytes > 0) { if (bs->backing) { + /* qcow2 emits this on bs->file instead of bs->backing */ + BLKDBG_EVENT(extent->file, BLKDBG_COW_READ); ret = bdrv_pread(bs->backing, offset, whole_grain, skip_start_bytes); if (ret < 0) { @@ -1082,6 +1084,7 @@ static int get_whole_cluster(BlockDriverState *bs, goto exit; } } + BLKDBG_EVENT(extent->file, BLKDBG_COW_WRITE); ret = bdrv_pwrite(extent->file, cluster_offset, whole_grain, skip_start_bytes); if (ret < 0) { @@ -1092,6 +1095,8 @@ static int get_whole_cluster(BlockDriverState *bs, /* Read backing data after skip range */ if (skip_end_bytes < cluster_bytes) { if (bs->backing) { + /* qcow2 emits this on bs->file instead of bs->backing */ + BLKDBG_EVENT(extent->file, BLKDBG_COW_READ); ret = bdrv_pread(bs->backing, offset + skip_end_bytes, whole_grain + skip_end_bytes, cluster_bytes - skip_end_bytes); @@ -1100,6 +1105,7 @@ static int get_whole_cluster(BlockDriverState *bs, goto exit; } } + BLKDBG_EVENT(extent->file, BLKDBG_COW_WRITE); ret = bdrv_pwrite(extent->file, cluster_offset + skip_end_bytes, whole_grain + skip_end_bytes, cluster_bytes - skip_end_bytes); @@ -1120,6 +1126,7 @@ static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data, { offset = cpu_to_le32(offset); /* update L2 table */ + BLKDBG_EVENT(extent->file, BLKDBG_L2_UPDATE); if (bdrv_pwrite_sync(extent->file, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(offset)), @@ -1218,6 +1225,7 @@ static int get_cluster_offset(BlockDriverState *bs, } } l2_table = extent->l2_cache + (min_index * extent->l2_size); + BLKDBG_EVENT(extent->file, BLKDBG_L2_LOAD); if (bdrv_pread(extent->file, (int64_t)l2_offset * 512, l2_table, @@ -1393,9 +1401,13 @@ static int vmdk_write_extent(VmdkExtent *extent, int64_t cluster_offset, .iov_len = n_bytes, }; qemu_iovec_init_external(&local_qiov, &iov, 1); + + BLKDBG_EVENT(extent->file, BLKDBG_WRITE_COMPRESSED); } else { qemu_iovec_init(&local_qiov, qiov->niov); qemu_iovec_concat(&local_qiov, qiov, qiov_offset, n_bytes); + + BLKDBG_EVENT(extent->file, BLKDBG_WRITE_AIO); } write_offset = cluster_offset + offset_in_cluster; @@ -1437,6 +1449,7 @@ static int vmdk_read_extent(VmdkExtent *extent, int64_t cluster_offset, if (!extent->compressed) { + BLKDBG_EVENT(extent->file, BLKDBG_READ_AIO); ret = bdrv_co_preadv(extent->file, cluster_offset + offset_in_cluster, bytes, qiov, 0); @@ -1450,6 +1463,7 @@ static int vmdk_read_extent(VmdkExtent *extent, int64_t cluster_offset, buf_bytes = cluster_bytes * 2; cluster_buf = g_malloc(buf_bytes); uncomp_buf = g_malloc(cluster_bytes); + BLKDBG_EVENT(extent->file, BLKDBG_READ_COMPRESSED); ret = bdrv_pread(extent->file, cluster_offset, cluster_buf, buf_bytes); @@ -1527,6 +1541,8 @@ vmdk_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes, qemu_iovec_reset(&local_qiov); qemu_iovec_concat(&local_qiov, qiov, bytes_done, n_bytes); + /* qcow2 emits this on bs->file instead of bs->backing */ + BLKDBG_EVENT(bs->file, BLKDBG_READ_BACKING_AIO); ret = bdrv_co_preadv(bs->backing, offset, n_bytes, &local_qiov, 0); if (ret < 0) { |