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-rw-r--r--block/io.c1
-rw-r--r--qapi/block-core.json5
2 files changed, 5 insertions, 1 deletions
diff --git a/block/io.c b/block/io.c
index 94f7470..a5598ed 100644
--- a/block/io.c
+++ b/block/io.c
@@ -983,6 +983,7 @@ static int coroutine_fn bdrv_co_do_copy_on_readv(BdrvChild *child,
goto err;
}
+ bdrv_debug_event(bs, BLKDBG_COR_WRITE);
if (drv->bdrv_co_pwrite_zeroes &&
buffer_is_zero(bounce_buffer, iov.iov_len)) {
/* FIXME: Should we (perhaps conditionally) be setting
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 750bb0c..ab96e34 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -2538,6 +2538,8 @@
#
# @l1_shrink_free_l2_clusters: discard the l2 tables. (since 2.11)
#
+# @cor_write: a write due to copy-on-read (since 2.11)
+#
# Since: 2.9
##
{ 'enum': 'BlkdebugEvent', 'prefix': 'BLKDBG',
@@ -2555,7 +2557,8 @@
'flush_to_disk', 'pwritev_rmw_head', 'pwritev_rmw_after_head',
'pwritev_rmw_tail', 'pwritev_rmw_after_tail', 'pwritev',
'pwritev_zero', 'pwritev_done', 'empty_image_prepare',
- 'l1_shrink_write_table', 'l1_shrink_free_l2_clusters' ] }
+ 'l1_shrink_write_table', 'l1_shrink_free_l2_clusters',
+ 'cor_write'] }
##
# @BlkdebugInjectErrorOptions: