Re: rhashtable: Use __vmalloc with GFP_ATOMIC for table allocation

David Miller
2015-12-07T19:29:57Z

From: Thomas Graf <tgraf@suug.ch>
Date: Mon, 7 Dec 2015 16:35:24 +0100

> Did you look into what __vmalloc prevents to work with BH disabled?

You can't issue the cross-cpu TLB flushes from atomic contexts.
It's the kernel page table updates that create the restriction.