[Qemu-devel] [PATCH] qemu-nbd: remove unnecessary qemu_notify_event()
This was needed when qemu-nbd was using qemu_set_fd_handler2. It is not needed anymore now that nbd_update_server_fd_handler is called whenever nbd_can_accept() can change from false to true. nbd_update_server_fd_handler will call qemu_set_fd_handler(), which will call qemu_notify_event(). Signed-off-by: Paolo Bonzini --- qemu-nbd.c | 1 - 1 file changed, 1 deletion(-) diff --git a/qemu-nbd.c b/qemu-nbd.c index 5106b80..d9644b2 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -362,7 +362,6 @@ static void nbd_client_closed(NBDClient *client) state = TERMINATE; } nbd_update_server_fd_handler(server_fd); -qemu_notify_event(); nbd_client_put(client); } -- 2.4.3
Re: [Qemu-devel] [PATCH] qemu-nbd: remove unnecessary qemu_notify_event()
On 27.07.2015 13:54, Paolo Bonzini wrote: This was needed when qemu-nbd was using qemu_set_fd_handler2. It is not needed anymore now that nbd_update_server_fd_handler is called whenever nbd_can_accept() can change from false to true. nbd_update_server_fd_handler will call qemu_set_fd_handler(), which will call qemu_notify_event(). Signed-off-by: Paolo Bonzini --- qemu-nbd.c | 1 - 1 file changed, 1 deletion(-) diff --git a/qemu-nbd.c b/qemu-nbd.c index 5106b80..d9644b2 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -362,7 +362,6 @@ static void nbd_client_closed(NBDClient *client) state = TERMINATE; } nbd_update_server_fd_handler(server_fd); -qemu_notify_event(); nbd_client_put(client); } Reviewed-by: Max Reitz
Re: [Qemu-devel] [PATCH] qemu-nbd: remove unnecessary qemu_notify_event()
On Mon, 07/27 13:54, Paolo Bonzini wrote: > This was needed when qemu-nbd was using qemu_set_fd_handler2. It is > not needed anymore now that nbd_update_server_fd_handler is called > whenever nbd_can_accept() can change from false to true. > nbd_update_server_fd_handler will call qemu_set_fd_handler(), > which will call qemu_notify_event(). > > Signed-off-by: Paolo Bonzini > --- > qemu-nbd.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/qemu-nbd.c b/qemu-nbd.c > index 5106b80..d9644b2 100644 > --- a/qemu-nbd.c > +++ b/qemu-nbd.c > @@ -362,7 +362,6 @@ static void nbd_client_closed(NBDClient *client) > state = TERMINATE; > } > nbd_update_server_fd_handler(server_fd); > -qemu_notify_event(); > nbd_client_put(client); > } > > -- > 2.4.3 > > Reviewed-by: Fam Zheng A question not related to this patch: unlike aio_set_fd_handler, qemu_set_fd_handler doesn't call qemu_notify_event for the "delete" branch. Is that intended?
Re: [Qemu-devel] [PATCH] qemu-nbd: remove unnecessary qemu_notify_event()
On 28/07/2015 06:09, Fam Zheng wrote: > On Mon, 07/27 13:54, Paolo Bonzini wrote: >> This was needed when qemu-nbd was using qemu_set_fd_handler2. It is >> not needed anymore now that nbd_update_server_fd_handler is called >> whenever nbd_can_accept() can change from false to true. >> nbd_update_server_fd_handler will call qemu_set_fd_handler(), >> which will call qemu_notify_event(). >> >> Signed-off-by: Paolo Bonzini >> --- >> qemu-nbd.c | 1 - >> 1 file changed, 1 deletion(-) >> >> diff --git a/qemu-nbd.c b/qemu-nbd.c >> index 5106b80..d9644b2 100644 >> --- a/qemu-nbd.c >> +++ b/qemu-nbd.c >> @@ -362,7 +362,6 @@ static void nbd_client_closed(NBDClient *client) >> state = TERMINATE; >> } >> nbd_update_server_fd_handler(server_fd); >> -qemu_notify_event(); >> nbd_client_put(client); >> } >> >> -- >> 2.4.3 >> >> > > Reviewed-by: Fam Zheng > > A question not related to this patch: unlike aio_set_fd_handler, > qemu_set_fd_handler doesn't call qemu_notify_event for the "delete" branch. Is > that intended? Yes. In fact I think qemu_notify_event() is not needed at all in qemu_set_fd_handler() because there are no concurrent ppoll() calls during a qemu_set_fd_handler(). Paolo
