[lkml]   [2009]   [Jun]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH RFC] fix RCU-callback-after-kmem_cache_destroy problem in sl[aou]b
On Tue, 30 Jun 2009, Pekka Enberg wrote:

> I don't even claim to understand all the RCU details here but I don't
> see why we should care about _kmem_cache_destroy()_ performance at
> this level. Christoph, hmmm?

Well it was surprising to me that kmem_cache_destroy() would perform rcu
actions in the first place. RCU is usually handled externally and not
within the slab allocator. The only reason that SLAB_DESTROY_BY_RCU exists
is because the user cannot otherwise control the final release of memory
to the page allocator.

 \ /
  Last update: 2009-06-30 16:23    [W:0.174 / U:0.020 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site