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[Qemu-devel] [PATCH v2 10/13] block: disable I/O throttling outside main
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH v2 10/13] block: disable I/O throttling outside main loop |
Date: |
Mon, 15 Jul 2013 22:42:59 +0800 |
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 26644ec..daf5717 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 (*tls_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] [PATCH v2 00/13] dataplane: use block layer, Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 01/13] dataplane: sync virtio.c and vring.c virtqueue state, Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 02/13] block: add BlockDevOps->drain_threads_cb(), Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 03/13] virtio-blk: implement BlockDevOps->drain_threads_cb(), Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 04/13] exec: do not use qemu/tls.h, Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 05/13] qemu-thread: add TLS wrappers, Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 06/13] block: add thread_aio_context TLS variable, Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 07/13] block: drop bdrv_get_aio_context(), Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 09/13] linux-aio: bind EventNotifier to current AioContext, Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 08/13] main-loop: use thread-local AioContext, Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 10/13] block: disable I/O throttling outside main loop,
Stefan Hajnoczi <=
- [Qemu-devel] [PATCH v2 11/13] dataplane: use block layer for I/O, Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 12/13] dataplane: drop ioq Linux AIO request queue, Stefan Hajnoczi, 2013/07/15
- [Qemu-devel] [PATCH v2 13/13] block: drop raw_get_aio_fd(), Stefan Hajnoczi, 2013/07/15
- Re: [Qemu-devel] [PATCH v2 00/13] dataplane: use block layer, Paolo Bonzini, 2013/07/15