lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sun, 28 Dec 2014 17:30:58 +0100
From:	Peter Zijlstra <>
To:	Davidlohr Bueso <>
Cc:	Ingo Molnar <>,
	"Paul E. McKenney" <>,, Davidlohr Bueso <>
Subject: Re: [PATCH 7/8] locking: Use [READ,ASSIGN]_ONCE() for non-scalar

On Sun, Dec 28, 2014 at 01:11:22AM -0800, Davidlohr Bueso wrote:
> I guess everyone will eventually have to update, so lets
> do our part... and become the first users of ASSIGN_ONCE().

> -	ACCESS_ONCE(prev->next) = node;
> +	ASSIGN_ONCE(node, prev->next);

> -	struct mcs_spinlock *next = ACCESS_ONCE(node->next);
> +	struct mcs_spinlock *next = READ_ONCE(node->next);

That's disgusting and sad, doubly so because I was entirely unaware of that stuff.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists