linux-kernel - Re: [PATCH] blk-mq: Avoid memoryless numa node encoded in hctx numa

lists.openwall.net		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 linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <56607456.1090807@kernel.dk>
Date:	Thu, 3 Dec 2015 09:56:54 -0700
From:	Jens Axboe <axboe@...nel.dk>
To:	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>
Cc:	tom.leiming@...il.com, linux-block@...r.kernel.org,
	nacc@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] blk-mq: Avoid memoryless numa node encoded in hctx
 numa_node

On 12/02/2015 04:29 AM, Raghavendra K T wrote:
> In architecture like powerpc, we can have cpus without any local memory
> attached to it (a.k.a memoryless nodes). In such cases cpu to node mapping
> can result in memory allocation hints for block hctx->numa_node populated
> with node values which does not have real memory.
>
> Instead use local_memory_node(), which is guaranteed to have memory.
> local_memory_node is a noop in other architectures that does not support
> memoryless nodes.

Applied for 4.5, thanks.

-- 
Jens Axboe

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/