diff options
Diffstat (limited to 'aio-posix.c')
-rw-r--r-- | aio-posix.c | 36 |
1 files changed, 11 insertions, 25 deletions
diff --git a/aio-posix.c b/aio-posix.c index b68eccd40c..2440eb9c27 100644 --- a/aio-posix.c +++ b/aio-posix.c @@ -23,7 +23,6 @@ struct AioHandler GPollFD pfd; IOHandler *io_read; IOHandler *io_write; - AioFlushHandler *io_flush; int deleted; int pollfds_idx; void *opaque; @@ -47,7 +46,6 @@ void aio_set_fd_handler(AioContext *ctx, int fd, IOHandler *io_read, IOHandler *io_write, - AioFlushHandler *io_flush, void *opaque) { AioHandler *node; @@ -84,7 +82,6 @@ void aio_set_fd_handler(AioContext *ctx, /* Update handler with latest information */ node->io_read = io_read; node->io_write = io_write; - node->io_flush = io_flush; node->opaque = opaque; node->pollfds_idx = -1; @@ -97,12 +94,10 @@ void aio_set_fd_handler(AioContext *ctx, void aio_set_event_notifier(AioContext *ctx, EventNotifier *notifier, - EventNotifierHandler *io_read, - AioFlushEventNotifierHandler *io_flush) + EventNotifierHandler *io_read) { aio_set_fd_handler(ctx, event_notifier_get_fd(notifier), - (IOHandler *)io_read, NULL, - (AioFlushHandler *)io_flush, notifier); + (IOHandler *)io_read, NULL, notifier); } bool aio_pending(AioContext *ctx) @@ -147,7 +142,11 @@ static bool aio_dispatch(AioContext *ctx) (revents & (G_IO_IN | G_IO_HUP | G_IO_ERR)) && node->io_read) { node->io_read(node->opaque); - progress = true; + + /* aio_notify() does not count as progress */ + if (node->opaque != &ctx->notifier) { + progress = true; + } } if (!node->deleted && (revents & (G_IO_OUT | G_IO_ERR)) && @@ -173,7 +172,7 @@ bool aio_poll(AioContext *ctx, bool blocking) { AioHandler *node; int ret; - bool busy, progress; + bool progress; progress = false; @@ -200,20 +199,8 @@ bool aio_poll(AioContext *ctx, bool blocking) g_array_set_size(ctx->pollfds, 0); /* fill pollfds */ - busy = false; QLIST_FOREACH(node, &ctx->aio_handlers, node) { node->pollfds_idx = -1; - - /* If there aren't pending AIO operations, don't invoke callbacks. - * Otherwise, if there are no AIO requests, qemu_aio_wait() would - * wait indefinitely. - */ - if (!node->deleted && node->io_flush) { - if (node->io_flush(node->opaque) == 0) { - continue; - } - busy = true; - } if (!node->deleted && node->pfd.events) { GPollFD pfd = { .fd = node->pfd.fd, @@ -226,8 +213,8 @@ bool aio_poll(AioContext *ctx, bool blocking) ctx->walking_handlers--; - /* No AIO operations? Get us out of here */ - if (!busy) { + /* early return if we only have the aio_notify() fd */ + if (ctx->pollfds->len == 1) { return progress; } @@ -250,6 +237,5 @@ bool aio_poll(AioContext *ctx, bool blocking) } } - assert(progress || busy); - return true; + return progress; } |