Messages in this thread | | | Subject | Re: [PATCH 3/4]percpu_counter: fix code for 32bit systems | From | Eric Dumazet <> | Date | Wed, 13 Apr 2011 05:53:40 +0200 |
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Le mercredi 13 avril 2011 à 11:03 +0800, Shaohua Li a écrit : > I can do this, but please give a reason. If network code is the only > place requiring disable irq, why not network code do it? >
Lot of percpu_counter users dont use full s64 range, but "unsigned long" or "unsigned int". Adding a lock on 32bit arches to get the s64, then truncate it is not needed.
This discussion reminds me an old one ;)
http://kerneltrap.org/mailarchive/linux-ext4/2008/12/12/4401894
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