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[6/9] sunrpc: Fix potential leaks in sunrpc_cache_unhash()

Message ID 20200106184037.563557-7-trond.myklebust@hammerspace.com (mailing list archive)
State New, archived
Headers show
Series Fix error reporting for NFS writes | expand

Commit Message

Trond Myklebust Jan. 6, 2020, 6:40 p.m. UTC 
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>
---
 net/sunrpc/cache.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index f740cb51802a..7ede1e52fd81 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -1888,7 +1888,9 @@  void sunrpc_cache_unhash(struct cache_detail *cd, struct cache_head *h)
 	if (!hlist_unhashed(&h->cache_list)){
 		hlist_del_init_rcu(&h->cache_list);
 		cd->entries--;
+		set_bit(CACHE_CLEANED, &h->flags);
 		spin_unlock(&cd->hash_lock);
+		cache_fresh_unlocked(h, cd);
 		cache_put(h, cd);
 	} else
 		spin_unlock(&cd->hash_lock);