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aio-posix: fix build failure io_uring 2.2

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The io_uring fixed "Don't truncate addr fields to 32-bit on 32-bit":
https://git.kernel.dk/cgit/liburing/commit/?id=d84c29b19ed0b130000619cff40141bb1fc3615b

This leads to build failure:
../util/fdmon-io_uring.c: In function ‘add_poll_remove_sqe’:
../util/fdmon-io_uring.c:182:36: error: passing argument 2 of ‘io_uring_prep_poll_remove’ makes integer from pointer without a cast [-Werror=int-conversion]
  182 |     io_uring_prep_poll_remove(sqe, node);
      |                                    ^~~~
      |                                    |
      |                                    AioHandler *
In file included from /root/io/qemu/include/block/aio.h:18,
                 from ../util/aio-posix.h:20,
                 from ../util/fdmon-io_uring.c:49:
/usr/include/liburing.h:415:17: note: expected ‘__u64’ {aka ‘long long unsigned int’} but argument is of type ‘AioHandler *’
  415 |           __u64 user_data)
      |           ~~~~~~^~~~~~~~~
cc1: all warnings being treated as errors

Use LIBURING_HAVE_DATA64 to check whether the io_uring supports 64-bit
variants of the get/set userdata, to convert the paramter to the right
data type.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Message-Id: <20220221162401.45415-1-haiyue.wang@intel.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Haiyue Wang 2022-02-22 00:24:01 +08:00 committed by Stefan Hajnoczi
parent 1d60bb4b14
commit 8a947c7a58
1 changed files with 4 additions and 0 deletions
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4
util/fdmon-io_uring.c
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@ -179,7 +179,11 @@ static void add_poll_remove_sqe(AioContext *ctx, AioHandler *node)
{
struct io_uring_sqe *sqe = get_sqe(ctx);
#ifdef LIBURING_HAVE_DATA64
io_uring_prep_poll_remove(sqe, (__u64)(uintptr_t)node);
#else
io_uring_prep_poll_remove(sqe, node);
#endif
}
/* Add a timeout that self-cancels when another cqe becomes ready */