On Wed, 2002-07-10 at 09:54, William Lee Irwin III wrote:
> Examine the avenrun array declared in kernel/timer.c in a manner similar
> to how loadavg_read_proc() in fs/proc/proc_misc.c does.
David, I wanted to add that we formalized the locking rules on
avenrun[3] a couple kernel revisions ago.
In 2.4, I believe it is implicitly assumed you will do a cli() before
accessing the data (if you want all 3 values to be in sync you need the
read to be safe).
In 2.5, grab a read_lock on xtime_lock and go at it.
Robert Love
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This archive was generated by hypermail 2b29 : Mon Jul 15 2002 - 22:00:17 EST