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Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll()
From: |
Dietmar Maurer |
Subject: |
Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll() |
Date: |
Thu, 24 Jan 2013 07:42:57 +0000 |
> > But when I use a thread it triggers the bug in bdrv_drain_all(). So
> > how can I fix bdrv_drain_all() if I use a separate thread to write data?
>
> The bug is, in all likelihood, in your own code. Sorry. :)
yes. I still not fully understand that aio code.
If I detect a incomplete write, I register an aio handler like this:
ret = write(fd, buf, count)
if (ret < 0 && (errno == EAGAIN || errno == EWOULDBLOCK) ) {
...
qemu_aio_set_fd_handler(fd, NULL, vma_co_continue_write, NULL,
mydata);
qemu_coroutine_yield();
But seems that qemu_aio_wait() returns false after that.
I thought that should return true instead?
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), (continued)
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/22
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/22
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/22
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/22
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/22
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(),
Dietmar Maurer <=
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/24
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/24