From: "Li,Rongqing(ACG CCN)" <lirongqing@baidu.com>
To: "freude@linux.ibm.com" <freude@linux.ibm.com>
Cc: Holger Dengler <dengler@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>
Subject: 答复: [????] Re: [PATCH] s390/pkey: Remove synchronize_rcu from pkey_handler_register
Date: Mon, 16 Mar 2026 09:54:51 +0000 [thread overview]
Message-ID: <a9e2b8ec60f64374852f62fc90e85e36@baidu.com> (raw)
In-Reply-To: <09877680c056890694067390894f2e01@linux.ibm.com>
> After some deep dive into RCU, and some code review with Holger we decided to
> leave this statement in the code: This is the fast path to push the info about the
> updated list to the other cpus. If removed, the other cpus may get the updated
> list when the RCU context is synched. As this code is in general not performance
> critical and the list update more or less only occurs at the early time in system
> startup the focus is on concurrency versus performance. Maybe I'll add a
> comment onto this code line...
>
Thanks for explanation, I think a comment is needed
sorry for noise.
[Li,Rongqing]
prev parent reply other threads:[~2026-03-16 9:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-13 5:23 [PATCH] s390/pkey: Remove synchronize_rcu from pkey_handler_register lirongqing
2026-03-13 8:32 ` Harald Freudenberger
2026-03-13 9:06 ` Heiko Carstens
2026-03-13 9:39 ` Harald Freudenberger
2026-03-16 9:35 ` Harald Freudenberger
2026-03-16 9:54 ` Li,Rongqing(ACG CCN) [this message]
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