bind/bind-9.11-rh1736762-5.patch
Petr Menšík d5106d287e Add one more candidate for issue fixing
Imported from upstream commit 6eed12605154b8ce10e9be0f51253e6ec318550e
2019-12-19 18:42:47 +01:00

60 lines
1.8 KiB
Diff

From 6257d829c9d7e71ac51bcdc6b5b981c7a19200e2 Mon Sep 17 00:00:00 2001
From: Mark Andrews <marka@isc.org>
Date: Mon, 25 Nov 2019 05:46:55 +0000
Subject: [PATCH] Merge branch
'1373-threadsanitizer-data-race-rbtdb-c-5193-in-detachnode' into 'master'
Resolve "ThreadSanitizer: data race rbtdb.c:5193 in detachnode"
Closes #1373
See merge request isc-projects/bind9!2598
---
lib/dns/include/dns/rbt.h | 22 +++++++++-------------
1 file changed, 9 insertions(+), 13 deletions(-)
diff --git a/lib/dns/include/dns/rbt.h b/lib/dns/include/dns/rbt.h
index 67ac3e4d8a..a084bd6193 100644
--- a/lib/dns/include/dns/rbt.h
+++ b/lib/dns/include/dns/rbt.h
@@ -49,10 +49,7 @@ ISC_LANG_BEGINDECLS
#define DNS_RBT_USEMAGIC 1
-/*
- * These should add up to 30.
- */
-#define DNS_RBT_LOCKLENGTH 10
+#define DNS_RBT_LOCKLENGTH (sizeof(((dns_rbtnode_t *)0)->locknum)*8)
#define DNS_RBT_REFLENGTH 20
#define DNS_RBTNODE_MAGIC ISC_MAGIC('R','B','N','O')
@@ -159,16 +156,15 @@ struct dns_rbtnode {
* separate region of memory.
*/
void *data;
- unsigned int :0; /* start of bitfields c/o node lock */
- unsigned int dirty:1;
- unsigned int wild:1;
- unsigned int locknum:DNS_RBT_LOCKLENGTH;
-#ifndef DNS_RBT_USEISCREFCOUNT
- unsigned int references:DNS_RBT_REFLENGTH;
-#endif
- unsigned int :0; /* end of bitfields c/o node lock */
+ uint8_t :0; /* start of bitfields c/o node lock */
+ uint8_t dirty:1;
+ uint8_t wild:1;
+ uint8_t :0; /* end of bitfields c/o node lock */
+ uint16_t locknum; /* note that this is not in the bitfield */
#ifdef DNS_RBT_USEISCREFCOUNT
- isc_refcount_t references; /* note that this is not in the bitfield */
+ isc_refcount_t references;
+#else
+ unsigned int references:DNS_RBT_REFLENGTH;
#endif
/*@}*/
};
--
2.21.0