sunrpc: Fix potential leaks in sunrpc_cache_unhash()
[ Upstream commit 1d82163714
]
When we unhash the cache entry, we need to handle any pending upcalls
by calling cache_fresh_unlocked().
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
parent
46503858e2
commit
707518c16b
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@ -1888,7 +1888,9 @@ void sunrpc_cache_unhash(struct cache_detail *cd, struct cache_head *h)
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if (!hlist_unhashed(&h->cache_list)){
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hlist_del_init_rcu(&h->cache_list);
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cd->entries--;
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set_bit(CACHE_CLEANED, &h->flags);
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spin_unlock(&cd->hash_lock);
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cache_fresh_unlocked(h, cd);
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cache_put(h, cd);
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} else
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spin_unlock(&cd->hash_lock);
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