On Tue, Jul 16, 2019 at 10:53:02AM -0400, Alex Kogan wrote:
> On Jul 16, 2019, at 6:20 AM, Peter Zijlstra wrote:
> >
> > On Mon, Jul 15, 2019 at 03:25:33PM -0400, Alex Kogan wrote:
> >
> >> +/*
> >> + * set_locked_empty_mcs - Try to set the spinlock value to _Q_LOCKED_VAL,
> >> + * and by doing
On Jul 16, 2019, at 6:20 AM, Peter Zijlstra wrote:
>
> On Mon, Jul 15, 2019 at 03:25:33PM -0400, Alex Kogan wrote:
>
>> +/*
>> + * set_locked_empty_mcs - Try to set the spinlock value to _Q_LOCKED_VAL,
>> + * and by doing that unlock the MCS lock when its waiting queue is empty
>> + * @lock: Poi
On Mon, Jul 15, 2019 at 03:25:33PM -0400, Alex Kogan wrote:
> +/*
> + * set_locked_empty_mcs - Try to set the spinlock value to _Q_LOCKED_VAL,
> + * and by doing that unlock the MCS lock when its waiting queue is empty
> + * @lock: Pointer to queued spinlock structure
> + * @val: Current value of
Move some of the code manipulating the spin lock into separate functions.
This would allow easier integration of alternative ways to manipulate
that lock.
Signed-off-by: Alex Kogan
Reviewed-by: Steve Sistare
---
kernel/locking/qspinlock.c | 40 ++--
1 file ch
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