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Subject: Re: [RFC PATCH 4/5] RCU: Add TASK_RCU_OFFSET
From: Peter Zijlstra <peterz@infradead.org>
To: paulmck@linux.vnet.ibm.com
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On Tue, 2011-04-05 at 16:07 -0700, Paul E. McKenney wrote:
> 
> The next layer on this onion is the use of the ctl_table typedef
> in include/linux/key.h -- which is defined to be struct ctl_table.
> Anyone know where struct ctl_table is defined?  Color me blind, but I
> am not seeing it... 

include/linux/sysctl.h:1015

/* A sysctl table is an array of struct ctl_table: */
struct ctl_table
{
        const char *procname;           /* Text ID for /proc/sys, or zero */
        void *data;
        int maxlen;
        mode_t mode;
        struct ctl_table *child;
        struct ctl_table *parent;       /* Automatically set */
        proc_handler *proc_handler;     /* Callback for text formatting */
        void *extra1;
        void *extra2;
};

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