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> Christoph Lameter wrote: > >>> > + /* Is the user allowed to access the target nodes? */ >>> > + if (!nodes_subset(new, cpuset_mems_allowed(task))) >>> > + return -EPERM; >>> > + > >> How about this ? >> +cpuset_update_task_mems_allowed(task, new); (this isn't implemented now *new* is already guaranteed to be the subset of current mem_allowed. Is this violate the permission ? Simon Derr wrote: > Automatically updating the ->mems_allowed field as you suggest would > require that the kernel do the same checks in sys_migrage_pages(). Sounds > not as a very good idea to me. Hmm, it means a user or admin should modify mem_allowed before the first page fault after calling sys_migrate_pages(). -- Kame - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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