diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -3141,10 +3141,13 @@ static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs, if (ret < 0) { /* Do nothing, write notifier decided to fail this request */ } else if (flags & BDRV_REQ_ZERO_WRITE) { + BLKDBG_EVENT(bs, BLKDBG_PWRITEV_ZERO); ret = bdrv_co_do_write_zeroes(bs, sector_num, nb_sectors, flags); } else { + BLKDBG_EVENT(bs, BLKDBG_PWRITEV); ret = drv->bdrv_co_writev(bs, sector_num, nb_sectors, qiov); } + BLKDBG_EVENT(bs, BLKDBG_PWRITEV_DONE); if (ret == 0 && !bs->enable_write_cache) { ret = bdrv_co_flush(bs); @@ -3215,11 +3218,13 @@ static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs, }; qemu_iovec_init_external(&head_qiov, &head_iov, 1); + BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_HEAD); ret = bdrv_aligned_preadv(bs, &req, offset & ~(align - 1), align, align, &head_qiov, 0); if (ret < 0) { goto fail; } + BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_AFTER_HEAD); qemu_iovec_init(&local_qiov, qiov->niov + 2); qemu_iovec_add(&local_qiov, head_buf, offset & (align - 1)); @@ -3247,11 +3252,13 @@ static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs, }; qemu_iovec_init_external(&tail_qiov, &tail_iov, 1); + BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_TAIL); ret = bdrv_aligned_preadv(bs, &req, (offset + bytes) & ~(align - 1), align, align, &tail_qiov, 0); if (ret < 0) { goto fail; } + BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_AFTER_TAIL); if (!use_local_qiov) { qemu_iovec_init(&local_qiov, qiov->niov + 1); |