Re: [v3 PATCH] KEYS: Invert FINAL_PUT bit

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Subject: Re: [v3 PATCH] KEYS: Invert FINAL_PUT bit
From: David Howells <dhowells@xxxxxxxxxx>
Date: Mon, 12 May 2025 10:19:14 +0100
Cc: dhowells@xxxxxxxxxx, kernel test robot <oliver.sang@xxxxxxxxx>, oe-lkp@xxxxxxxxxxxxxxx, lkp@xxxxxxxxx, keyrings@xxxxxxxxxxxxxxx, Jarkko Sakkinen <jarkko@xxxxxxxxxx>, Lukas Wunner <lukas@xxxxxxxxx>, Ignat Korchagin <ignat@xxxxxxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Peter Huewe <peterhuewe@xxxxxx>, Jason Gunthorpe <jgg@xxxxxxxx>, Paul Moore <paul@xxxxxxxxxxxxxx>, James Morris <jmorris@xxxxxxxxx>, "Serge E. Hallyn" <serge@xxxxxxxxxx>, James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>, Mimi Zohar <zohar@xxxxxxxxxxxxx>, linux-crypto@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-integrity@xxxxxxxxxxxxxxx, linux-security-module@xxxxxxxxxxxxxxx
In-reply-to: <aB3OsMWScE2I9DhG@gondor.apana.org.au>
Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903
References: <aB3OsMWScE2I9DhG@gondor.apana.org.au> <aBccz2nJs5Asg6cN@gondor.apana.org.au> <202505091721.245cbe78-lkp@intel.com>

Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote:

> Invert the FINAL_PUT bit so that test_bit_acquire and clear_bit_unlock
> can be used instead of smp_mb.
> 
> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>

Acked-by: David Howells <dhowells@xxxxxxxxxx>

Follow-Ups:
- Re: [v3 PATCH] KEYS: Invert FINAL_PUT bit
  - From: David Howells
- Re: [v3 PATCH] KEYS: Invert FINAL_PUT bit
  - From: Jarkko Sakkinen

References:
- [v3 PATCH] KEYS: Invert FINAL_PUT bit
  - From: Herbert Xu
- [v2 PATCH] KEYS: Invert FINAL_PUT bit
  - From: Herbert Xu
- Re: [v2 PATCH] KEYS: Invert FINAL_PUT bit
  - From: kernel test robot

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