block: cleanup the variable naming in elv_iosched_store

Use eq for the elevator_queue as done elsewhere.  This frees e to be used
for the loop iterator instead of the odd __ prefix.  In addition rename
elv to cur to make it more clear it is the currently selected elevator.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221030100714.876891-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/elevator.c b/block/elevator.c
index fa58905..72346bf 100644 (file)
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -778,9 +778,8 @@ ssize_t elv_iosched_store(struct request_queue *q, const char *buf,
 
 ssize_t elv_iosched_show(struct request_queue *q, char *name)
 {
-       struct elevator_queue *e = q->elevator;
-       struct elevator_type *elv = NULL;
-       struct elevator_type *__e;
+       struct elevator_queue *eq = q->elevator;
+       struct elevator_type *cur = NULL, *e;
        int len = 0;
 
        if (!elv_support_iosched(q))
@@ -789,17 +788,17 @@ ssize_t elv_iosched_show(struct request_queue *q, char *name)
        if (!q->elevator)
                len += sprintf(name+len, "[none] ");
        else
-               elv = e->type;
+               cur = eq->type;
 
        spin_lock(&elv_list_lock);
-       list_for_each_entry(__e, &elv_list, list) {
-               if (elv && elevator_match(elv, __e->elevator_name, 0)) {
-                       len += sprintf(name+len, "[%s] ", elv->elevator_name);
+       list_for_each_entry(e, &elv_list, list) {
+               if (cur && elevator_match(cur, e->elevator_name, 0)) {
+                       len += sprintf(name+len, "[%s] ", cur->elevator_name);
                        continue;
                }
-               if (elevator_match(__e, __e->elevator_name,
+               if (elevator_match(e, e->elevator_name,
                                   q->required_elevator_features))
-                       len += sprintf(name+len, "%s ", __e->elevator_name);
+                       len += sprintf(name+len, "%s ", e->elevator_name);
        }
        spin_unlock(&elv_list_lock);