From 9febe03eb595d72c1fe933b706559bf66789d1f0 Mon Sep 17 00:00:00 2001
From: Howard Chu <hyc@symas.com>
Date: Sat, 2 Aug 2014 10:33:35 -0700
Subject: [PATCH] More for MIPS
Paranoia for 3630066843b7ca6b2cd12911d3e2fe3314cd4549 do the
cacheflush before setting mti_txnid.
---
libraries/liblmdb/mdb.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 96f5772903..16f5855615 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -3581,6 +3581,10 @@ fail:
return rc;
}
done:
+ /* MIPS has cache coherency issues, this is a no-op everywhere else */
+ if (!(env->me_flags & MDB_WRITEMAP)) {
+ CACHEFLUSH(env->me_map, txn->mt_next_pgno * env->me_psize, DCACHE);
+ }
/* Memory ordering issues are irrelevant; since the entire writer
* is wrapped by wmutex, all of these changes will become visible
* after the wmutex is unlocked. Since the DB is multi-version,
@@ -3590,11 +3594,6 @@ done:
if (env->me_txns)
env->me_txns->mti_txnid = txn->mt_txnid;
- /* MIPS has cache coherency issues, this is a no-op everywhere else */
- if (!(env->me_flags & MDB_WRITEMAP)) {
- CACHEFLUSH(env->me_map, txn->mt_next_pgno * env->me_psize, DCACHE);
- }
-
return MDB_SUCCESS;
}
--
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