[lkml]   [2018]   [Mar]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v2 net] net: xfrm: use preempt-safe this_cpu_read() in ipcomp_alloc_tfms()
On Wed, Mar 07, 2018 at 02:42:53PM -0800, Greg Hackmann wrote:
> f7c83bcbfaf5 ("net: xfrm: use __this_cpu_read per-cpu helper") added a
> __this_cpu_read() call inside ipcomp_alloc_tfms().
> At the time, __this_cpu_read() required the caller to either not care
> about races or to handle preemption/interrupt issues. 3.15 tightened
> the rules around some per-cpu operations, and now __this_cpu_read()
> should never be used in a preemptible context. On 3.15 and later, we
> need to use this_cpu_read() instead.


> Signed-off-by: Greg Hackmann <>

Patch applied, thanks!

 \ /
  Last update: 2018-03-13 07:51    [W:0.032 / U:19.488 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site