On 02/13/2018 04:40 PM, Waiman Long wrote: > On 02/13/2018 10:50 AM, Christoph Hellwig wrote: >> On Fri, Feb 09, 2018 at 09:52:21AM -0500, Waiman Long wrote: >>> When multiple kernel threads are created to cooperatively work on >>> a common task, we may need a convenient way to access data that are >>> specific to each kthread. >>> >>> The kthread_data() function fits this need. However, it was not >>> visible to kthreads started in a kernel module. To solve this problem, >>> the kthread_data() function is now exported allowing kthreads from >>> kernel modules to use it. >> Please send this along wit hthe actual user of it. > It is the developers of the dm-vdo/kvdo modules that would like to use > the kthread_data() function. See > > https://github.com/dm-vdo/kvdo > > Those modules have a bunch of kernel threads working on block storage > deduplication/compression. > > -Longman > BTW, I am fine with not exporting the function. They just have to find an alternative way of doing it.