On Tue, Apr 12, 2011 at 08:41:11PM +0200, Richard Weinberger wrote: > Am Dienstag 12 April 2011, 20:10:37 schrieb Christoph Lameter: > > On Tue, 12 Apr 2011, Richard Weinberger wrote: > > > This patch implements this_cpu_cmpxchg16b_emu() for UML. > > > > Is this really necessary? Just undefine CONFIG_CMPXCHG_LOCAL for UML and > > the asm code will not be used. > > UML includes arch/x86/Kconfig.cpu which defines CONFIG_CMPXCHG_LOCAL > automatically. > Just disabling CONFIG_CMPXCHG_LOCAL for UML is IMHO not very nice. > When chpxchg is available also UML should use it...
Ugh... I'd really like to avoid things like this for UML. Is there any SLUB performance sensitive workload running on UML? I've never seen any UML in production environment. Wouldn't it be better to keep things simple? Thanks. -- tejun ------------------------------------------------------------------------------ Forrester Wave Report - Recovery time is now measured in hours and minutes not days. Key insights are discussed in the 2010 Forrester Wave Report as part of an in-depth evaluation of disaster recovery service providers. Forrester found the best-in-class provider in terms of services and vision. Read this report now! http://p.sf.net/sfu/ibm-webcastpromo _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
