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authorPeter Maydell <peter.maydell@linaro.org>2015-11-09 11:20:51 +0000
committerPeter Maydell <peter.maydell@linaro.org>2015-11-09 11:20:51 +0000
commit9d5c1dc117d1ad881bbc76f6990ee1f9e9f8ef7f (patch)
tree90d4dace696dbff6d0414de85353fdc6b6d39bc6 /include
parentb3a9e57d92dff7dd5822f322e4eb49af9e1b70b8 (diff)
parent84aa0140dd4f04f5d993f0db14c40da8d3de2706 (diff)
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
# gpg: Signature made Mon 09 Nov 2015 10:08:17 GMT using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" * remotes/stefanha/tags/block-pull-request: blockdev: acquire AioContext in hmp_commit() monitor: add missed aio_context_acquire into vm_completion call aio: Introduce aio-epoll.c aio: Introduce aio_context_setup aio: Introduce aio_external_disabled dataplane: support non-contigious s/g dataplane: simplify indirect descriptor read Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
-rw-r--r--include/block/aio.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/block/aio.h b/include/block/aio.h
index 92efc5e..e086e3b 100644
--- a/include/block/aio.h
+++ b/include/block/aio.h
@@ -124,6 +124,11 @@ struct AioContext {
QEMUTimerListGroup tlg;
int external_disable_cnt;
+
+ /* epoll(7) state used when built with CONFIG_EPOLL */
+ int epollfd;
+ bool epoll_enabled;
+ bool epoll_available;
};
/**
@@ -406,6 +411,17 @@ static inline void aio_enable_external(AioContext *ctx)
}
/**
+ * aio_external_disabled:
+ * @ctx: the aio context
+ *
+ * Return true if the external clients are disabled.
+ */
+static inline bool aio_external_disabled(AioContext *ctx)
+{
+ return atomic_read(&ctx->external_disable_cnt);
+}
+
+/**
* aio_node_check:
* @ctx: the aio context
* @is_external: Whether or not the checked node is an external event source.
@@ -418,4 +434,12 @@ static inline bool aio_node_check(AioContext *ctx, bool is_external)
return !is_external || !atomic_read(&ctx->external_disable_cnt);
}
+/**
+ * aio_context_setup:
+ * @ctx: the aio context
+ *
+ * Initialize the aio context.
+ */
+void aio_context_setup(AioContext *ctx, Error **errp);
+
#endif