On 2011-02-15 13:32, Marcelo Tosatti wrote: > On Tue, Feb 08, 2011 at 12:55:39PM +0100, Jan Kiszka wrote: >> Only for walking the list of VMs, we do not need to hold the preemption >> disabling kvm_lock. Convert stat services, the cpufreq callback and >> mmu_shrink to RCU. For the latter, special care is required to >> synchronize its list_move_tail with kvm_destroy_vm. >> >> Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> > > Jan, > > What is the motivation for this change? > See http://thread.gmane.org/gmane.linux.kernel/1097043 However, this proposal turned out to be incorrect. The strategy is now to remove the stats users and reduce the lock-holding time of mmu_shrink differently. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
