When I/O limits are set for a block device, the name of the throttling
group is taken from the BlockBackend if the user doesn't specify one.
Commit
efaa7c4eeb7490c6f37f3 moved the naming of the BlockBackend in
blockdev_init() to the end of the function, after I/O limits are set.
The consequence is that the throttling group gets an empty name.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reported-by: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: qemu-stable@nongnu.org
Message-id:
af5cd58bd2c4b9f6c57f260d9cfe586b9fb7d34d.
1467986342.git.berto@igalia.com
[mreitz: Use existing "id" variable instead of new "blk_id"]
Signed-off-by: Max Reitz <mreitz@redhat.com>
writethrough = !qemu_opt_get_bool(opts, BDRV_OPT_CACHE_WB, true);
writethrough = !qemu_opt_get_bool(opts, BDRV_OPT_CACHE_WB, true);
+ id = qemu_opts_id(opts);
+
qdict_extract_subqdict(bs_opts, &interval_dict, "stats-intervals.");
qdict_array_split(interval_dict, &interval_list);
qdict_extract_subqdict(bs_opts, &interval_dict, "stats-intervals.");
qdict_array_split(interval_dict, &interval_list);
/* disk I/O throttling */
if (throttle_enabled(&cfg)) {
if (!throttling_group) {
/* disk I/O throttling */
if (throttle_enabled(&cfg)) {
if (!throttling_group) {
- throttling_group = blk_name(blk);
}
blk_io_limits_enable(blk, throttling_group);
blk_set_io_limits(blk, &cfg);
}
blk_io_limits_enable(blk, throttling_group);
blk_set_io_limits(blk, &cfg);
blk_set_enable_write_cache(blk, !writethrough);
blk_set_on_error(blk, on_read_error, on_write_error);
blk_set_enable_write_cache(blk, !writethrough);
blk_set_on_error(blk, on_read_error, on_write_error);
- if (!monitor_add_blk(blk, qemu_opts_id(opts), errp)) {
+ if (!monitor_add_blk(blk, id, errp)) {
blk_unref(blk);
blk = NULL;
goto err_no_bs_opts;
blk_unref(blk);
blk = NULL;
goto err_no_bs_opts;