On Thu, Oct 24, 2013 at 10:26:03AM +0100, Jens Axboe wrote: > +static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_ipi = { > + .attr = {.name = "ipi_redirect", .mode = S_IRUGO | S_IWUGO}, > + .show = blk_mq_hw_sysfs_ipi_show, > + .store = blk_mq_hw_sysfs_ipi_store,Is having this world writable a good idea ? Dave