On 8/16/19 1:48 AM, Ming Lei wrote: > It is reported that sysfs buffer overflow can be triggered in case > of too many CPU cores(>841 on 4K PAGE_SIZE) when showing CPUs in > blk_mq_hw_sysfs_cpus_show(). > > This info isn't useful, given users may retrieve the CPU list > from sw queue entries under same kobject dir, so far not see > any active users. > > So remove the entry as suggested by Greg.
I think that's a bit frivolous, there could very well be scripts or apps that use it. Let's just fix the overflow. -- Jens Axboe
