diff options
| author | Jie Wang <wangjie88@huawei.com> | 2018-05-17 08:42:43 +0800 |
|---|---|---|
| committer | Fam Zheng <famz@redhat.com> | 2018-05-18 17:09:54 +0800 |
| commit | cd0a6d2b2c3d5cbf82a868d8c6c80961bcda6db5 (patch) | |
| tree | b2f081c485e1856e785dc3f20164986751c9e3bf | |
| parent | 9d5e546af0a8500c0bde312c8dea6037428c655d (diff) | |
iothread: fix epollfd leak in the process of delIOThread
When we call addIOThread, the epollfd created in aio_context_setup,
but not close it in the process of delIOThread, so the epollfd will leak.
Reorder the code in aio_epoll_disable and reuse it.
Signed-off-by: Jie Wang <wangjie88@huawei.com>
Message-Id: <1526517763-11108-1-git-send-email-wangjie88@huawei.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
[Mention change to aio_epoll_disable in commit message. - Fam]
Signed-off-by: Fam Zheng <famz@redhat.com>
| -rw-r--r-- | include/block/aio.h | 8 | ||||
| -rw-r--r-- | util/aio-posix.c | 13 | ||||
| -rw-r--r-- | util/aio-win32.c | 4 | ||||
| -rw-r--r-- | util/async.c | 1 |
4 files changed, 23 insertions, 3 deletions
diff --git a/include/block/aio.h b/include/block/aio.h index a1d6b9e249..ae6f354e6c 100644 --- a/include/block/aio.h +++ b/include/block/aio.h @@ -555,6 +555,14 @@ static inline bool in_aio_context_home_thread(AioContext *ctx) void aio_context_setup(AioContext *ctx); /** + * aio_context_destroy: + * @ctx: the aio context + * + * Destroy the aio context. + */ +void aio_context_destroy(AioContext *ctx); + +/** * aio_context_set_poll_params: * @ctx: the aio context * @max_ns: how long to busy poll for, in nanoseconds diff --git a/util/aio-posix.c b/util/aio-posix.c index d8f0cb4af8..118bf5784b 100644 --- a/util/aio-posix.c +++ b/util/aio-posix.c @@ -45,11 +45,11 @@ struct AioHandler static void aio_epoll_disable(AioContext *ctx) { - ctx->epoll_available = false; - if (!ctx->epoll_enabled) { + ctx->epoll_enabled = false; + if (!ctx->epoll_available) { return; } - ctx->epoll_enabled = false; + ctx->epoll_available = false; close(ctx->epollfd); } @@ -713,6 +713,13 @@ void aio_context_setup(AioContext *ctx) #endif } +void aio_context_destroy(AioContext *ctx) +{ +#ifdef CONFIG_EPOLL_CREATE1 + aio_epoll_disable(ctx); +#endif +} + void aio_context_set_poll_params(AioContext *ctx, int64_t max_ns, int64_t grow, int64_t shrink, Error **errp) { diff --git a/util/aio-win32.c b/util/aio-win32.c index a67b00c6ad..e676a8d9b2 100644 --- a/util/aio-win32.c +++ b/util/aio-win32.c @@ -407,6 +407,10 @@ void aio_context_setup(AioContext *ctx) { } +void aio_context_destroy(AioContext *ctx) +{ +} + void aio_context_set_poll_params(AioContext *ctx, int64_t max_ns, int64_t grow, int64_t shrink, Error **errp) { diff --git a/util/async.c b/util/async.c index 4dd9d95a9e..03f62787f2 100644 --- a/util/async.c +++ b/util/async.c @@ -298,6 +298,7 @@ aio_ctx_finalize(GSource *source) qemu_rec_mutex_destroy(&ctx->lock); qemu_lockcnt_destroy(&ctx->list_lock); timerlistgroup_deinit(&ctx->tlg); + aio_context_destroy(ctx); } static GSourceFuncs aio_source_funcs = { |