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-rw-r--r--block/blk-sysfs.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index dcdfcaa12653..1855c6770045 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -352,24 +352,34 @@ queue_rq_affinity_store(struct request_queue *q, const char *page, size_t count)
static ssize_t queue_poll_delay_show(struct request_queue *q, char *page)
{
- return queue_var_show(q->poll_nsec / 1000, page);
+ int val;
+
+ if (q->poll_nsec == -1)
+ val = -1;
+ else
+ val = q->poll_nsec / 1000;
+
+ return sprintf(page, "%d\n", val);
}
static ssize_t queue_poll_delay_store(struct request_queue *q, const char *page,
size_t count)
{
- unsigned long poll_usec;
- ssize_t ret;
+ int err, val;
if (!q->mq_ops || !q->mq_ops->poll)
return -EINVAL;
- ret = queue_var_store(&poll_usec, page, count);
- if (ret < 0)
- return ret;
+ err = kstrtoint(page, 10, &val);
+ if (err < 0)
+ return err;
- q->poll_nsec = poll_usec * 1000;
- return ret;
+ if (val == -1)
+ q->poll_nsec = -1;
+ else
+ q->poll_nsec = val * 1000;
+
+ return count;
}
static ssize_t queue_poll_show(struct request_queue *q, char *page)