netdev - Re: [PATCH] mac80211: rewrite fragmentation code

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Date:	Fri, 16 May 2008 12:38:58 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	David Miller <davem@...emloft.net>, herbert@...dor.apana.org.au,
	mb@...sch.de, linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org, ron.rindjunsky@...el.com, tomasw@...il.com,
	ivdoorn@...il.com, peter.p.waskiewicz.jr@...el.com
Subject: Re: [PATCH] mac80211: rewrite fragmentation code


> I put a patch in to do exactly that at Herbert's prompting, for 2.6.26, but 
> it's buggy in (at least) two ways.  I have a fix for this, which adds a new 
> tasklet to xmit the packet.  There's still some subtle race, however, since 
> I'm still seeing a stuck packet.  I'll have to revert to TX_BUSY for 2.6.26 
> if I can't find it (unlikely).

Incidentally, mac80211 has a tasklet for this as well, and I'm pretty
sure it's also buggy in the corner cases (rather than inefficient or
something)

johannes

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