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authorNeil Brown <neilb@suse.com>2016-12-22 12:38:06 -0500
committerJ. Bruce Fields <bfields@redhat.com>2017-01-31 12:31:53 -0500
commit2b477c00f3bd87c3286f5940cb4174d8b01ee0d5 (patch)
treec6de85ae00a8251c4e7d5093a2881de61b487003 /net/sunrpc/cache.c
parent034dd34ff4916ec1f8f74e39ca3efb04eab2f791 (diff)
svcrpc: free contexts immediately on PROC_DESTROY
We currently handle a client PROC_DESTROY request by turning it CACHE_NEGATIVE, setting the expired time to now, and then waiting for cache_clean to clean it up later. Since we forgot to set the cache's nextcheck value, that could take up to 30 minutes. Also, though there's probably no real bug in this case, setting CACHE_NEGATIVE directly like this probably isn't a great idea in general. So let's just remove the entry from the cache directly, and move this bit of cache manipulation to a helper function. Signed-off-by: Neil Brown <neilb@suse.com> Reported-by: Andy Adamson <andros@netapp.com> Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc/cache.c')
-rw-r--r--net/sunrpc/cache.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 8147e8d56eb2..502b9fe9817b 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -1855,3 +1855,15 @@ void sunrpc_cache_unregister_pipefs(struct cache_detail *cd)
}
EXPORT_SYMBOL_GPL(sunrpc_cache_unregister_pipefs);
+void sunrpc_cache_unhash(struct cache_detail *cd, struct cache_head *h)
+{
+ write_lock(&cd->hash_lock);
+ if (!hlist_unhashed(&h->cache_list)){
+ hlist_del_init(&h->cache_list);
+ cd->entries--;
+ write_unlock(&cd->hash_lock);
+ cache_put(h, cd);
+ } else
+ write_unlock(&cd->hash_lock);
+}
+EXPORT_SYMBOL_GPL(sunrpc_cache_unhash);