commit fcf5def1ab0f94ff120b7141c943b517d2ece83d
author Paolo Bonzini <pbonzini@redhat.com> Wed Dec 17 16:09:58 2014 +0100
committer Stefan Hajnoczi <stefanha@redhat.com> Tue Jan 13 11:47:55 2015 +0000
tree 7ef226e4d84faf66f58d2b0615f1f3afcae2eb51
parent b8aff7d6bfa1632d722f47a1a6bca679221b6db3

block: mark AioContext as recursive

AioContext can be accessed recursively, in fact that's what we do with
aio_poll.  Marking the GSource as recursive avoids that GLib blocks it
and unblocks it around every call to aio_dispatch, which is a pretty
expensive operation.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

async.c

diff --git a/async.c b/async.c
index 3939b79..572f239 100644
--- a/async.c
+++ b/async.c
@@ -300,6 +300,7 @@
         error_setg_errno(errp, -ret, "Failed to initialize event notifier");
         return NULL;
     }
+    g_source_set_can_recurse(&ctx->source, true);
     aio_set_event_notifier(ctx, &ctx->notifier,
                            (EventNotifierHandler *)
                            event_notifier_test_and_clear);