Hello.
These patches are updated version of 'del_timer_sync: proof of concept'
2 patches.
1/5:
unchanded.
2/5:
del_timer_sync() simplified. It is not neccessary to unlock and
retry if __TIMER_PENDING has changed, it is only neccessary if
timer's base == (timer->_base & ~1) has changed. Also, comments
are updated.
3/5:
The reworked del_timer_sync() can't work unless timers are
serialized wrt to itself. They are not.
I missed the fact that __mod_timer() can change timer's base
while the timer is running.
4/5:
remove memory barrier in __run_timers() and del_timer().
5/5:
kill ugly __get_base(), it was temporal.
The del_singleshot_timer_sync function now unneeded, but it looks like
additional test for del_timer_sync(), so it will be removed later.
Btw, add_timer_on() is racy against __mod_timer(), is it worth fixing?
Oleg.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
