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aio: remove aio_disable_external() API

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All callers now pass is_external=false to aio_set_fd_handler() and
aio_set_event_notifier(). The aio_disable_external() API that
temporarily disables fd handlers that were registered is_external=true
is therefore dead code.

Remove aio_disable_external(), aio_enable_external(), and the
is_external arguments to aio_set_fd_handler() and
aio_set_event_notifier().

The entire test-fdmon-epoll test is removed because its sole purpose was
testing aio_disable_external().

Parts of this patch were generated using the following coccinelle
(https://coccinelle.lip6.fr/) semantic patch:

  @@
  expression ctx, fd, is_external, io_read, io_write, io_poll, io_poll_ready, opaque;
  @@
  - aio_set_fd_handler(ctx, fd, is_external, io_read, io_write, io_poll, io_poll_ready, opaque)
  + aio_set_fd_handler(ctx, fd, io_read, io_write, io_poll, io_poll_ready, opaque)

  @@
  expression ctx, notifier, is_external, io_read, io_poll, io_poll_ready;
  @@
  - aio_set_event_notifier(ctx, notifier, is_external, io_read, io_poll, io_poll_ready)
  + aio_set_event_notifier(ctx, notifier, io_read, io_poll, io_poll_ready)

Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230516190238.8401-21-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2023-05-16 15:02:38 -04:00 • committed by Kevin Wolf
parent 03d7162a21
commit 60f782b6b7
36 changed files with 80 additions and 298 deletions
Download patch file Download diff file Expand all files Collapse all files

7
util/qemu-coroutine-io.c
View file

@ -74,8 +74,7 @@ typedef struct {
static void fd_coroutine_enter(void *opaque)
{
FDYieldUntilData *data = opaque;
aio_set_fd_handler(data->ctx, data->fd, false,
NULL, NULL, NULL, NULL, NULL);
aio_set_fd_handler(data->ctx, data->fd, NULL, NULL, NULL, NULL, NULL);
qemu_coroutine_enter(data->co);
}
@ -87,7 +86,7 @@ void coroutine_fn yield_until_fd_readable(int fd)
data.ctx = qemu_get_current_aio_context();
data.co = qemu_coroutine_self();
data.fd = fd;
aio_set_fd_handler(
data.ctx, fd, false, fd_coroutine_enter, NULL, NULL, NULL, &data);
aio_set_fd_handler(data.ctx, fd, fd_coroutine_enter, NULL, NULL, NULL,
&data);
qemu_coroutine_yield();
}