Hi all,
On Wed, Jan 27, 2016 at 9:01 PM, Jeff Moyer <jmoyer@xxxxxxxxxx> wrote:
> Alexey Klimov <klimov.linux@xxxxxxxxx> writes:
>
>> Last user of elevator_init() with non-NULL name as second argument
>> that supposed to be s390 dasd driver has gone few releases ago.
>> Drivers rely on elevator_change(), elevator_switch() and friends
>> for example. Right now elevator_init() is always called as
>> elevator_init(q, NULL).
>>
>> Patch removes passing of second name argument and its usage.
>>
>> While we're at it fix following if-check after removed lines. We know
>> that elevator_type e is initialized by NULL and need to check only
>> chosen_elevator.
>>
>> Signed-off-by: Alexey Klimov <klimov.linux@xxxxxxxxx>
>
> Reviewed-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
what is the status of this patch? Is it that wrong and are there some
concerns or do I need to resend it?
Best regards,
Alexey
>> ---
>> block/blk-core.c | 2 +-
>> block/elevator.c | 10 ++--------
>> include/linux/elevator.h | 2 +-
>> 3 files changed, 4 insertions(+), 10 deletions(-)
>>
>> diff --git a/block/blk-core.c b/block/blk-core.c
>> index 33e2f62..f742ef4 100644
>> --- a/block/blk-core.c
>> +++ b/block/blk-core.c
>> @@ -861,7 +861,7 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,
>> mutex_lock(&q->sysfs_lock);
>>
>> /* init elevator */
>> - if (elevator_init(q, NULL)) {
>> + if (elevator_init(q)) {
>> mutex_unlock(&q->sysfs_lock);
>> goto fail;
>> }
>> diff --git a/block/elevator.c b/block/elevator.c
>> index c3555c9..ff5c830 100644
>> --- a/block/elevator.c
>> +++ b/block/elevator.c
>> @@ -177,7 +177,7 @@ static void elevator_release(struct kobject *kobj)
>> kfree(e);
>> }
>>
>> -int elevator_init(struct request_queue *q, char *name)
>> +int elevator_init(struct request_queue *q)
>> {
>> struct elevator_type *e = NULL;
>> int err;
>> @@ -196,18 +196,12 @@ int elevator_init(struct request_queue *q, char *name)
>> q->end_sector = 0;
>> q->boundary_rq = NULL;
>>
>> - if (name) {
>> - e = elevator_get(name, true);
>> - if (!e)
>> - return -EINVAL;
>> - }
>> -
>> /*
>> * Use the default elevator specified by config boot param or
>> * config option. Don't try to load modules as we could be running
>> * off async and request_module() isn't allowed from async.
>> */
>> - if (!e && *chosen_elevator) {
>> + if (*chosen_elevator) {
>> e = elevator_get(chosen_elevator, false);
>> if (!e)
>> printk(KERN_ERR "I/O scheduler %s not found\n",
>> diff --git a/include/linux/elevator.h b/include/linux/elevator.h
>> index 638b324..0ae0efd 100644
>> --- a/include/linux/elevator.h
>> +++ b/include/linux/elevator.h
>> @@ -154,7 +154,7 @@ extern void elv_unregister(struct elevator_type *);
>> extern ssize_t elv_iosched_show(struct request_queue *, char *);
>> extern ssize_t elv_iosched_store(struct request_queue *, const char *, size_t);
>>
>> -extern int elevator_init(struct request_queue *, char *);
>> +extern int elevator_init(struct request_queue *);
>> extern void elevator_exit(struct elevator_queue *);
>> extern int elevator_change(struct request_queue *, const char *);
>> extern bool elv_rq_merge_ok(struct request *, struct bio *);
--
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