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[Qemu-devel] [PATCH v2 1/2] aio-posix: Don't count ctx->notifier as prog
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH v2 1/2] aio-posix: Don't count ctx->notifier as progress when polling |
Date: |
Tue, 7 Aug 2018 17:16:54 +0800 |
The same logic exists in fd polling. This change is especially important
to avoid busy loop once we limit aio_notify_accept() to blocking
aio_poll().
Cc: address@hidden
Signed-off-by: Fam Zheng <address@hidden>
---
util/aio-posix.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/util/aio-posix.c b/util/aio-posix.c
index 118bf5784b..b5c7f463aa 100644
--- a/util/aio-posix.c
+++ b/util/aio-posix.c
@@ -494,7 +494,8 @@ static bool run_poll_handlers_once(AioContext *ctx)
QLIST_FOREACH_RCU(node, &ctx->aio_handlers, node) {
if (!node->deleted && node->io_poll &&
aio_node_check(ctx, node->is_external) &&
- node->io_poll(node->opaque)) {
+ node->io_poll(node->opaque) &&
+ node->opaque != &ctx->notifier) {
progress = true;
}
--
2.17.1