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[Qemu-devel] [RFC 10/13] block: disable I/O throttling outside main loop
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [RFC 10/13] block: disable I/O throttling outside main loop |
Date: |
Fri, 14 Jun 2013 11:48:30 +0200 |
Timers only work in the main loop. This means threads running their own
AioContext cannot use I/O throttling for now.
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
block.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/block.c b/block.c
index d986fc8..2d7a0f8 100644
--- a/block.c
+++ b/block.c
@@ -169,6 +169,11 @@ static void bdrv_io_limits_intercept(BlockDriverState *bs,
{
int64_t wait_time = -1;
+ /* Timers currently only work in the main loop */
+ if (*get_thread_aio_context() != qemu_get_aio_context()) {
+ return;
+ }
+
if (!qemu_co_queue_empty(&bs->throttled_reqs)) {
qemu_co_queue_wait(&bs->throttled_reqs);
}
--
1.8.1.4
- [Qemu-devel] [RFC 00/13] dataplane: use block layer, Stefan Hajnoczi, 2013/06/14
- [Qemu-devel] [RFC 01/13] block: fix bdrv_flush() ordering in bdrv_close(), Stefan Hajnoczi, 2013/06/14
- [Qemu-devel] [RFC 02/13] dataplane: sync virtio.c and vring.c virtqueue state, Stefan Hajnoczi, 2013/06/14
- [Qemu-devel] [RFC 03/13] block: add BlockDevOps->drain_threads_cb(), Stefan Hajnoczi, 2013/06/14
- [Qemu-devel] [RFC 04/13] virtio-blk: implement BlockDevOps->drain_threads_cb(), Stefan Hajnoczi, 2013/06/14
- [Qemu-devel] [RFC 06/13] qemu-thread: add TLS wrappers, Stefan Hajnoczi, 2013/06/14
- [Qemu-devel] [RFC 07/13] block: add thread_aio_context TLS variable, Stefan Hajnoczi, 2013/06/14
- [Qemu-devel] [RFC 09/13] main-loop: use thread-local AioContext, Stefan Hajnoczi, 2013/06/14
- [Qemu-devel] [RFC 10/13] block: disable I/O throttling outside main loop,
Stefan Hajnoczi <=
- [Qemu-devel] [RFC 08/13] block: drop bdrv_get_aio_context(), Stefan Hajnoczi, 2013/06/14
[Qemu-devel] [RFC 12/13] dataplane: drop ioq Linux AIO request queue, Stefan Hajnoczi, 2013/06/14
[Qemu-devel] [RFC 11/13] dataplane: use block layer for I/O, Stefan Hajnoczi, 2013/06/14
[Qemu-devel] [RFC 13/13] block: drop raw_get_aio_fd(), Stefan Hajnoczi, 2013/06/14
[Qemu-devel] [RFC 05/13] exec: do not use qemu/tls.h, Stefan Hajnoczi, 2013/06/14