> Perhaps rcu can be better, although a global rwsem looks simpler, > I dunno.
It's a general problem with lots of sysctls. > > But argv_split() or its usage should be changed anyway, and GFP_KERNEL > won't work under rcu_read_lock(). rcu strings has a helper function to copy the string for sleepy cases. > > To me 1/2 looks as a simplification anyway, but I won't argue if we > decide to add rcu/locking and avoid this patch. Ok I'll revisit. I think the problem last time was that the rcu strings needed a kernel_text_address() function that worked on all architectures. Andi -- a...@linux.intel.com -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
