[lkml]   [2009]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 1/3] net: introduce a list of device addresses dev_addr_list
Jiri Pirko wrote:

>> Since you obviously need a write lock here to be sure following
>> can be done by one cpu only.
>> You have same problem all over this patch.
> Yes, as Dave wrote, this is guarded by RTNL mutex.

This was incorrect. IPv6 adds multicast addresses in softirq context.

>>> +
>>> + ha = kzalloc(sizeof(*ha), GFP_ATOMIC);
>> kzalloc(max(sizeof(*ha), L1_CACHE_SIZE), GFP_...) is thus higly recommended here.
>> Also, why GFP_ATOMIC is needed here ?
> Yes, it is not needed here. I've copied it here from the original unicast and
> multicast add funtion to stay close but as I can see, there is no need for it
> there either.
> Noted.

Also needed for IPv6 in softirq context.

 \ /
  Last update: 2009-04-15 13:25    [W:0.163 / U:40.144 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site