2.6.6 echo > /proc/sys/kernel/foo not invoking strategy routine

From: Keith Owens
Date: Fri May 14 2004 - 01:06:24 EST

In kernel/sysctl.c, you can define a ctl_table entry that has a
proc_handler of proc_dointvec and also define your own strategy
routine. It turns out that the strategy routine is not called, despite
the comments saying it should be. echo 1 > /proc/sys/kernel/foo
invokes sys_write() -> proc_writesys() -> do_rw_proc() ->
proc_dointvec() and completely ignores the strategy field. The
strategy is only used on the do_sysctl() path, which is deprecated. Is
this deliberate?

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