From 2ff1f2e3a39daf4a401a8904d00b29ea8c450463 Mon Sep 17 00:00:00 2001 From: Alberto Garcia Date: Mon, 8 Jun 2015 18:17:42 +0200 Subject: throttle: Add throttle group infrastructure Signed-off-by: Alberto Garcia Reviewed-by: Stefan Hajnoczi Message-id: 2fdb4de17210b733a13eb472c33cd08b45f8fd21.1433779731.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi --- include/block/block_int.h | 1 + include/block/throttle-groups.h | 39 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+) create mode 100644 include/block/throttle-groups.h (limited to 'include') diff --git a/include/block/block_int.h b/include/block/block_int.h index 02b312f..8d15c7b 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -383,6 +383,7 @@ struct BlockDriverState { ThrottleTimers throttle_timers; CoQueue throttled_reqs[2]; bool io_limits_enabled; + QLIST_ENTRY(BlockDriverState) round_robin; /* I/O stats (display with "info blockstats"). */ BlockAcctStats stats; diff --git a/include/block/throttle-groups.h b/include/block/throttle-groups.h new file mode 100644 index 0000000..b966ec7 --- /dev/null +++ b/include/block/throttle-groups.h @@ -0,0 +1,39 @@ +/* + * QEMU block throttling group infrastructure + * + * Copyright (C) Nodalink, EURL. 2014 + * Copyright (C) Igalia, S.L. 2015 + * + * Authors: + * Benoît Canet + * Alberto Garcia + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 or + * (at your option) version 3 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#ifndef THROTTLE_GROUPS_H +#define THROTTLE_GROUPS_H + +#include "qemu/throttle.h" +#include "block/block_int.h" + +const char *throttle_group_get_name(BlockDriverState *bs); + +void throttle_group_config(BlockDriverState *bs, ThrottleConfig *cfg); +void throttle_group_get_config(BlockDriverState *bs, ThrottleConfig *cfg); + +void throttle_group_register_bs(BlockDriverState *bs, const char *groupname); +void throttle_group_unregister_bs(BlockDriverState *bs); + +#endif -- cgit v1.1