openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

elevator: remove redundant warnings on IO scheduler switch 

We warn twice for switching to a scheduler, if that switch fails.
As we also report the failure in the return value to the
sysfs write, remove the dmesg induced failures.

Keep the failure print for warning to switch to the kconfig
selected IO scheduler, as we can't report errors for that in
any other way.

Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe 2017-05-10 07:40:04 -06:00
parent 43c1b3d6e5
commit 340ff32167
1 changed files with 1 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
block/elevator.c
View File

@ -1062,10 +1062,8 @@ static int __elevator_change(struct request_queue *q, const char *name)
strlcpy(elevator_name, name, sizeof(elevator_name));
e = elevator_get(strstrip(elevator_name), true);
if (!e) {
printk(KERN_ERR "elevator: type %s not found\n", elevator_name);
if (!e)
return -EINVAL;
}
if (q->elevator &&
!strcmp(elevator_name, q->elevator->type->elevator_name)) {
@ -1105,7 +1103,6 @@ ssize_t elv_iosched_store(struct request_queue *q, const char *name,
if (!ret)
return count;
printk(KERN_ERR "elevator: switch to %s failed\n", name);
return ret;
}