[Xenomai] [PATCH] Revert "boilerplate/hash: drop preposterous PI for locking"

[Xenomai] [PATCH] Revert "boilerplate/hash: drop preposterous PI for locking"

[Jan Kiszka]

This reverts commit 0f19393b3702705c8470147b6a3fd03a08b42642.

No reason was given back then, and we there is the risk that this code
is used by prio-sensitive threads. Moreover, pvhash still used PI -
unless it is mapped on plain hash in case of !CONFIG_XENO_PSHARED.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 lib/boilerplate/hash.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/boilerplate/hash.c b/lib/boilerplate/hash.c
index aa35fa475..17beb385c 100644
--- a/lib/boilerplate/hash.c
+++ b/lib/boilerplate/hash.c
@@ -101,6 +101,7 @@ void __hash_init(void *heap, struct hash_table *t)
 
 	pthread_mutexattr_init(&mattr);
 	pthread_mutexattr_settype(&mattr, mutex_type_attribute);
+	pthread_mutexattr_setprotocol(&mattr, PTHREAD_PRIO_INHERIT);
 	pthread_mutexattr_setpshared(&mattr, mutex_scope_attribute);
 	__RT(pthread_mutex_init(&t->lock, &mattr));
 	pthread_mutexattr_destroy(&mattr);
-- 
2.13.6