提交 71b90511 编写于 作者: O Omar Sandoval 提交者: Jens Axboe

blk-mq-debugfs: don't open code strstrip()

Slightly more readable, plus we also strip leading spaces.
Signed-off-by: NOmar Sandoval <osandov@fb.com>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Signed-off-by: NJens Axboe <axboe@fb.com>
上级 c7e4145a
......@@ -111,17 +111,16 @@ static ssize_t blk_queue_flags_store(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
struct request_queue *q = file_inode(file)->i_private;
char op[16] = { }, *s;
char opbuf[16] = { }, *op;
if (count >= sizeof(op)) {
if (count >= sizeof(opbuf)) {
pr_err("%s: operation too long\n", __func__);
goto inval;
}
if (copy_from_user(op, buf, count))
if (copy_from_user(opbuf, buf, count))
return -EFAULT;
s = op;
strsep(&s, " \t\n"); /* strip trailing whitespace */
op = strstrip(opbuf);
if (strcmp(op, "run") == 0) {
blk_mq_run_hw_queues(q, true);
} else if (strcmp(op, "start") == 0) {
......
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