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authorHerbert Xu <herbert@gondor.apana.org.au>2015-03-24 00:50:26 +1100
committerDavid S. Miller <davem@davemloft.net>2015-03-23 22:07:52 -0400
commitb824478b2145be78ac19e1cf44e2b9036c7a9608 (patch)
tree19c7d4ad479fd987eef5fd9b6063df27fd26012a /lib/test_rhashtable.c
parent18093d1c0d1e032142ee24825678b0a8977d74ba (diff)
downloadop-kernel-dev-b824478b2145be78ac19e1cf44e2b9036c7a9608.zip
op-kernel-dev-b824478b2145be78ac19e1cf44e2b9036c7a9608.tar.gz
rhashtable: Add multiple rehash support
This patch adds the missing bits to allow multiple rehashes. The read-side as well as remove already handle this correctly. So it's only the rehasher and insertion that need modification to handle this. Note that this patch doesn't actually enable it so for now rehashing is still only performed by the worker thread. This patch also disables the explicit expand/shrink interface because the table is meant to expand and shrink automatically, and continuing to export these interfaces unnecessarily complicates the life of the rehasher since the rehash process is now composed of two parts. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/test_rhashtable.c')
-rw-r--r--lib/test_rhashtable.c24
1 files changed, 0 insertions, 24 deletions
diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c
index a2ba6ad..a42a0d4 100644
--- a/lib/test_rhashtable.c
+++ b/lib/test_rhashtable.c
@@ -155,30 +155,6 @@ static int __init test_rhashtable(struct rhashtable *ht)
test_rht_lookup(ht);
rcu_read_unlock();
- for (i = 0; i < TEST_NEXPANDS; i++) {
- pr_info(" Table expansion iteration %u...\n", i);
- mutex_lock(&ht->mutex);
- rhashtable_expand(ht);
- mutex_unlock(&ht->mutex);
-
- rcu_read_lock();
- pr_info(" Verifying lookups...\n");
- test_rht_lookup(ht);
- rcu_read_unlock();
- }
-
- for (i = 0; i < TEST_NEXPANDS; i++) {
- pr_info(" Table shrinkage iteration %u...\n", i);
- mutex_lock(&ht->mutex);
- rhashtable_shrink(ht);
- mutex_unlock(&ht->mutex);
-
- rcu_read_lock();
- pr_info(" Verifying lookups...\n");
- test_rht_lookup(ht);
- rcu_read_unlock();
- }
-
rcu_read_lock();
test_bucket_stats(ht, true);
rcu_read_unlock();
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