diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2010-03-15 17:38:05 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-04-23 16:08:46 +0200 |
| commit | 8252278afb4b646a5a21cf8c30bb0a0066825078 (patch) | |
| tree | a301fbdd8a2d48e6b077ed7a2487c922440a6218 /block/qcow2.c | |
| parent | 8b9b0cc2fd1b866c0ce6c7f7385d840aad8b4c2c (diff) | |
qcow2: Trigger blkdebug events
This adds blkdebug events to qcow2 to allow injecting I/O errors in specific
places.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow2.c')
| -rw-r--r-- | block/qcow2.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index 4e97eb605d..80c99afcdb 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -429,6 +429,7 @@ static void qcow_aio_read_cb(void *opaque, int ret) acb->hd_iov.iov_base = (void *)acb->buf; acb->hd_iov.iov_len = acb->cur_nr_sectors * 512; qemu_iovec_init_external(&acb->hd_qiov, &acb->hd_iov, 1); + BLKDBG_EVENT(s->hd, BLKDBG_READ_BACKING_AIO); acb->hd_aiocb = bdrv_aio_readv(bs->backing_hd, acb->sector_num, &acb->hd_qiov, acb->cur_nr_sectors, qcow_aio_read_cb, acb); @@ -464,6 +465,7 @@ static void qcow_aio_read_cb(void *opaque, int ret) acb->hd_iov.iov_base = (void *)acb->buf; acb->hd_iov.iov_len = acb->cur_nr_sectors * 512; qemu_iovec_init_external(&acb->hd_qiov, &acb->hd_iov, 1); + BLKDBG_EVENT(s->hd, BLKDBG_READ_AIO); acb->hd_aiocb = bdrv_aio_readv(s->hd, (acb->cluster_offset >> 9) + index_in_cluster, &acb->hd_qiov, acb->cur_nr_sectors, @@ -619,6 +621,7 @@ static void qcow_aio_write_cb(void *opaque, int ret) acb->hd_iov.iov_base = (void *)src_buf; acb->hd_iov.iov_len = acb->cur_nr_sectors * 512; qemu_iovec_init_external(&acb->hd_qiov, &acb->hd_iov, 1); + BLKDBG_EVENT(s->hd, BLKDBG_WRITE_AIO); acb->hd_aiocb = bdrv_aio_writev(s->hd, (acb->cluster_offset >> 9) + index_in_cluster, &acb->hd_qiov, acb->cur_nr_sectors, @@ -1141,6 +1144,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num, if (!cluster_offset) return -1; cluster_offset &= s->cluster_offset_mask; + BLKDBG_EVENT(s->hd, BLKDBG_WRITE_COMPRESSED); if (bdrv_pwrite(s->hd, cluster_offset, out_buf, out_len) != out_len) { qemu_free(out_buf); return -1; @@ -1211,6 +1215,7 @@ static int qcow_save_vmstate(BlockDriverState *bs, const uint8_t *buf, int growable = bs->growable; int ret; + BLKDBG_EVENT(s->hd, BLKDBG_VMSTATE_SAVE); bs->growable = 1; ret = bdrv_pwrite(bs, qcow_vm_state_offset(s) + pos, buf, size); bs->growable = growable; @@ -1225,6 +1230,7 @@ static int qcow_load_vmstate(BlockDriverState *bs, uint8_t *buf, int growable = bs->growable; int ret; + BLKDBG_EVENT(s->hd, BLKDBG_VMSTATE_LOAD); bs->growable = 1; ret = bdrv_pread(bs, qcow_vm_state_offset(s) + pos, buf, size); bs->growable = growable; |