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 PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 29 Oct 2014 07:49:19 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: Alexander Duyck <alexander.h.duyck@...hat.com> Cc: netdev <netdev@...r.kernel.org>, Stephen Ko <stephen.s.ko@...el.com> Subject: [RFC] use smp_load_acquire()/smp_store_release() Hi Alexander The memory barriers added in commit b37c0fbe3f6dfba1f8ad2aed47fb40578a254635 ("net: Add memory barriers to prevent possible race in byte queue limits") have heavy cost. It seems we could use smp_load_acquire() and smp_store_release() instead ? I'll post a patch later today. I would be interested if someone was able to test it, as your commit apparently was tested and known to fix a reproducible race. Thanks ! -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists