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a2564d0688
Add a new static variable (loadpin_root_writable) to keep the write-ability state of enforce. Remove set_sysctl and const qualify loadpin_sysctl_table (moves into .rodata) as there is no longer need to change the value of extra1. The new proc_handler_loadpin returns -EINVAL when loadpin_root_writable is false and the kernel var (enforce) is being written. The old way of modifying the write-ability of enforce stays in loadpin_check and is still set by calling sb_is_writable. Signed-off-by: Joel Granados <joel.granados@kernel.org>