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Subject[PATCH] 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()").

Signed-off-by: Zhaoyu Liu <zackary.liu.pro@gmail.com>
---
mm/zpool.c | 12 ------------
1 file changed, 12 deletions(-)

diff --git a/mm/zpool.c b/mm/zpool.c
index 6d9ed48141e5..68facc193496 100644
--- a/mm/zpool.c
+++ b/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 char *type, const char *name, gfp_t gfp,

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 *zpool)
{
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);
--
2.17.1
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