From: Stephen Hemminger <stephen@networkplumber.org>
To: "Morten Brørup" <mb@smartsharesystems.com>
Cc: "Honnappa Nagarahalli" <Honnappa.Nagarahalli@arm.com>,
<dev@dpdk.org>, "nd" <nd@arm.com>
Subject: Re: [RFC] rwlock: prevent readers from starving writers
Date: Sat, 9 Jul 2022 09:22:45 -0700 [thread overview]
Message-ID: <20220709092245.3fa00c66@hermes.local> (raw)
In-Reply-To: <98CBD80474FA8B44BF855DF32C47DC35D871BB@smartserver.smartshare.dk>
On Sat, 9 Jul 2022 00:04:27 +0200
Morten Brørup <mb@smartsharesystems.com> wrote:
> > > typedef struct {
> > > - volatile int32_t cnt; /**< -1 when W lock held, > 0 when R locks
> > held.
> > > */
> > > + volatile int32_t cnt;
>
> Not signed anymore, so consider uint32_t. Suggest also rename to cnt_state or similar, since it is not just a counter anymor
I tried that but the rte_wait_until is using signed value.
next prev parent reply other threads:[~2022-07-09 16:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-07 20:12 [RFC] rwlock: prevent readers from starving writers Stephen Hemminger
2022-07-08 19:22 ` Honnappa Nagarahalli
2022-07-08 22:04 ` Morten Brørup
2022-07-09 16:22 ` Stephen Hemminger [this message]
2022-07-09 16:25 ` Stephen Hemminger
2022-07-19 20:27 ` [PATCH v2] " Stephen Hemminger
2022-07-19 21:52 ` Morten Brørup
2022-07-19 22:33 ` Stephen Hemminger
2022-07-20 6:48 ` Morten Brørup
2022-10-03 10:01 ` David Marchand
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