* Milton D. Miller II <[EMAIL PROTECTED]> wrote: > commit 029190c515f15f512ac85de8fc686d4dbd0ae731 (cpuset > sched_load_balance flag) was not tested SCHED_DEBUG enabled as > committed as it dereferences NULL when used and it reordered the > sysctl registration to cause it to never show any domains or their > tunables. > > Fixes: > > 1) restore arch_init_sched_domains ordering > we can't walk the domains before we build them > > presently we register cpus with empty directories (no domain > directories or files). > > 2) make unregister_sched_domain_sysctl do nothing when already unregistered > detach_destroy_domains is now called one set of cpus at a time > unregister_syctl dereferences NULL if called with a null. > > While the the function would always dereference null if called > twice, in the previous code it was always called once and then > was followed a register. So only the hidden bug of the > sysctl_root_table not being allocated followed by an attempt to > free it would have shown the error. > > 3) always call unregister and register in partition_sched_domains > The code is "smart" about unregistering only needed domains. > Since we aren't guaranteed any calls to unregister, always > unregister. Without calling register on the way out we > will not have a table or any sysctl tree. > > 4) warn if register is called without unregistering > The previous table memory is lost, leaving pointers to the > later freed memory in sysctl and leaking the memory of the > tables.
thanks, applied. Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/