Re: [PATCH] netns: fix net_alloc_generic()

From: Eric Dumazet <redacted>
Date: Thu, 26 Jan 2012 11:41:38 +0100

[PATCH] netns: fix net_alloc_generic()

When a new net namespace is created, we should attach to it a "struct
net_generic" with enough slots (even empty), or we can hit the following
BUG_ON() :

...

net_alloc_generic() should take into account the maximum index into the
ptr array, as a subsystem might use net_generic() anytime.

This also reduces number of reallocations in net_assign_generic()

Reported-by: Sasha Levin <redacted>
Signed-off-by: Eric Dumazet <redacted>

Applied and queued up for -stable, thanks.