From: Benjamin Marzinski <bmarzins@redhat.com>
To: Martin Wilck <mwilck@suse.com>
Cc: lixiaokeng@huawei.com, dm-devel@redhat.com,
Chongyun Wu <wu.chongyun@h3c.com>
Subject: Re: [dm-devel] [PATCH 32/35] multipathd: uxlsnr: add timeout handling
Date: Thu, 16 Sep 2021 10:08:37 -0500 [thread overview]
Message-ID: <20210916150837.GY3087@octiron.msp.redhat.com> (raw)
In-Reply-To: <d7440ecaf519e509540cd1b1c32157bd8e980dd5.camel@suse.com>
On Thu, Sep 16, 2021 at 10:58:36AM +0200, Martin Wilck wrote:
> On Wed, 2021-09-15 at 23:17 -0500, Benjamin Marzinski wrote:
> > On Fri, Sep 10, 2021 at 01:41:17PM +0200, mwilck@suse.com wrote:
> > > From: Martin Wilck <mwilck@suse.com>
> > >
> > > Our ppoll() call needs to wake up when a client request times out.
> > > This logic can be added by determining the first client that's
> > > about
> > > to time out. The logic in handle_client() will then cause a timeout
> > > reply to be sent to the client. This is more client-friendly
> > > as the client timing out without receiving a reply.
> > >
> > > Signed-off-by: Martin Wilck <mwilck@suse.com>
> > > ---
> > > multipathd/uxlsnr.c | 58
> > > +++++++++++++++++++++++++++++++++++++++++----
> > > 1 file changed, 53 insertions(+), 5 deletions(-)
> > >
> > >
> > > @@ -594,6 +643,7 @@ void *uxsock_listen(long ux_sock, void
> > > *trigger_data)
> > > while (1) {
> > > struct client *c, *tmp;
> > > int i, n_pfds, poll_count, num_clients;
> > > + struct timespec __timeout, *timeout;
> >
> > Maybe it's just too late to be looking at code, but I'm missing why
> > we
> > need a separate variable that it a pointer to __timeout.
>
> This way __get_soonest_timeout() can return either NULL or &__timeout,
> and we can simply pass the return value to ppoll().
Ah. Yep. Too late to be reviewing code.
-Ben
>
> Martin
>
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next prev parent reply other threads:[~2021-09-16 15:08 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-10 11:40 [dm-devel] [PATCH 00/35] multipathd: uxlsnr overhaul mwilck
2021-09-10 11:40 ` [dm-devel] [PATCH 01/35] libmultipath: add timespeccmp() utility function mwilck
2021-09-15 22:07 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 02/35] libmultipath: add trylock() helper mwilck
2021-09-15 22:07 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 03/35] libmultipath: add optional wakeup functionality to lock.c mwilck
2021-09-15 22:13 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 04/35] libmultipath: print: add __snprint_config() mwilck
2021-09-15 22:14 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 05/35] libmultipath: improve cleanup of uevent queues on exit mwilck
2021-09-15 22:20 ` Benjamin Marzinski
2021-09-16 7:10 ` Martin Wilck
2021-09-16 14:26 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 06/35] multipathd: fix systemd notification when stopping while reloading mwilck
2021-09-15 22:55 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 07/35] multipathd: improve delayed reconfigure mwilck
2021-09-15 23:00 ` Benjamin Marzinski
2021-09-16 7:16 ` Martin Wilck
2021-09-10 11:40 ` [dm-devel] [PATCH 08/35] multipathd: cli.h: formatting improvements mwilck
2021-09-15 23:01 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 09/35] multipathd: cli_del_map: fix reply for delayed action mwilck
2021-09-15 23:40 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 10/35] multipathd: add prototype for cli_handler functions mwilck
2021-09-15 23:53 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 11/35] multipathd: make all cli_handlers static mwilck
2021-09-15 23:53 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 12/35] multipathd: add and set cli_handlers in a single step mwilck
2021-09-16 0:01 ` Benjamin Marzinski
2021-09-16 7:22 ` Martin Wilck
2021-11-12 21:45 ` Martin Wilck
2021-09-10 11:40 ` [dm-devel] [PATCH 13/35] multipathd: cli.c: use ESRCH for "command not found" mwilck
2021-09-16 0:02 ` Benjamin Marzinski
2021-09-10 11:40 ` [dm-devel] [PATCH 14/35] multipathd: add "force_reconfigure" option mwilck
2021-09-16 0:13 ` Benjamin Marzinski
2021-09-16 7:34 ` Martin Wilck
2021-09-16 14:32 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 15/35] multipathd: uxlsnr: avoid stalled clients during reconfigure mwilck
2021-09-16 2:17 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 16/35] multipathd: uxlsnr: handle client HUP mwilck
2021-09-16 2:17 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 17/35] multipathd: uxlsnr: use symbolic values for pollfd indices mwilck
2021-09-16 2:18 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 18/35] multipathd: uxlsnr: avoid using fd -1 in ppoll() mwilck
2021-09-16 2:18 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 19/35] multipathd: uxlsnr: data structure for stateful client connection mwilck
2021-09-16 2:19 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 20/35] multipathd: move uxsock_trigger() to uxlsnr.c mwilck
2021-09-16 2:19 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 21/35] multipathd: move parse_cmd() " mwilck
2021-09-16 2:19 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 22/35] multipathd: uxlsnr: remove check_timeout() mwilck
2021-09-16 2:21 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 23/35] multipathd: uxlsnr: move client handling to separate function mwilck
2021-09-16 2:21 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 24/35] multipathd: uxlsnr: use main poll loop for receiving mwilck
2021-09-16 2:22 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 25/35] multipathd: use strbuf in cli_handler functions mwilck
2021-09-16 2:23 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 26/35] multipathd: uxlsnr: check root on connection startup mwilck
2021-09-16 2:23 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 27/35] multipathd: uxlsnr: pass struct client to uxsock_trigger() and parse_cmd() mwilck
2021-09-16 2:28 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 28/35] multipathd: uxlsnr: move handler execution to separate function mwilck
2021-09-16 2:28 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 29/35] multipathd: uxlsnr: use parser to determine non-root commands mwilck
2021-09-16 2:29 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 30/35] multipathd: uxlsnr: merge uxsock_trigger() into state machine mwilck
2021-09-16 3:32 ` Benjamin Marzinski
2021-09-16 8:02 ` Martin Wilck
2021-11-12 22:07 ` Martin Wilck
2021-09-10 11:41 ` [dm-devel] [PATCH 31/35] multipathd: uxlsnr: add idle notification mwilck
2021-09-16 4:14 ` Benjamin Marzinski
2021-09-16 8:54 ` Martin Wilck
2021-09-16 15:06 ` Benjamin Marzinski
2021-09-16 15:54 ` Martin Wilck
2021-09-16 16:10 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 32/35] multipathd: uxlsnr: add timeout handling mwilck
2021-09-16 4:17 ` Benjamin Marzinski
2021-09-16 8:58 ` Martin Wilck
2021-09-16 15:08 ` Benjamin Marzinski [this message]
2021-09-10 11:41 ` [dm-devel] [PATCH 33/35] multipathd: uxlsnr: use poll loop for sending, too mwilck
2021-09-16 4:22 ` Benjamin Marzinski
2021-09-16 9:33 ` Martin Wilck
2021-09-16 15:26 ` Benjamin Marzinski
2021-09-10 11:41 ` [dm-devel] [PATCH 34/35] multipathd: uxlsnr: drop client_lock mwilck
2021-09-16 4:24 ` Benjamin Marzinski
2021-09-16 9:34 ` Martin Wilck
2021-09-10 11:41 ` [dm-devel] [PATCH 35/35] multipathd: uxclt: allow client mode for non-root, too mwilck
2021-09-16 4:24 ` Benjamin Marzinski
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