From: Zhaoyu Liu <zackary.liu.pro@xxxxxxxxx>
Subject: zpool: remove the list of pools_head
The list of pools_head is no longer needed because the caller has been
deleted in commit 479305fd7172 ("zpool: remove zpool_evict()").
Link: https://lkml.kernel.org/r/20211215163727.GA17196@pc
Signed-off-by: Zhaoyu Liu <zackary.liu.pro@xxxxxxxxx>
Cc: Dan Streetman <ddstreet@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zpool.c | 12 ------------
1 file changed, 12 deletions(-)
--- a/mm/zpool.c~zpool-remove-the-list-of-pools_head
+++ a/mm/zpool.c
@@ -24,16 +24,11 @@ struct zpool {
const struct zpool_ops *ops;
bool evictable;
bool can_sleep_mapped;
-
- struct list_head list;
};
static LIST_HEAD(drivers_head);
static DEFINE_SPINLOCK(drivers_lock);
-static LIST_HEAD(pools_head);
-static DEFINE_SPINLOCK(pools_lock);
-
/**
* zpool_register_driver() - register a zpool implementation.
* @driver: driver to register
@@ -195,10 +190,6 @@ struct zpool *zpool_create_pool(const ch
pr_debug("created pool type %s\n", type);
- spin_lock(&pools_lock);
- list_add(&zpool->list, &pools_head);
- spin_unlock(&pools_lock);
-
return zpool;
}
@@ -217,9 +208,6 @@ void zpool_destroy_pool(struct zpool *zp
{
pr_debug("destroying pool type %s\n", zpool->driver->type);
- spin_lock(&pools_lock);
- list_del(&zpool->list);
- spin_unlock(&pools_lock);
zpool->driver->destroy(zpool->pool);
zpool_put_driver(zpool->driver);
kfree(zpool);
_
