Changeset ab6edb6 in mainline for uspace/lib/c/generic/rcu.c

Timestamp:

2018-06-26T17:34:48Z (7 years ago)

Author:

Jiří Zárevúcky <jiri.zarevucky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e768aea

Parents:

b59318e

git-author:

Jiří Zárevúcky <jiri.zarevucky@…> (2018-06-25 19:28:19)

git-committer:

Jiří Zárevúcky <jiri.zarevucky@…> (2018-06-26 17:34:48)

Message:

Simplify the interaction between async_futex and fibril_switch().

File:

• uspace/lib/c/generic/rcu.c (modified) (1 diff)

uspace/lib/c/generic/rcu.c

@@ -373 +373 @@
                         blocked_fib.is_ready = false;
                         futex_unlock(&rcu.sync_lock.futex);
-                        fibril_switch(FIBRIL_TO_MANAGER);
+                        futex_lock(&async_futex);
+                        fibril_switch(FIBRIL_FROM_BLOCKED);
+                        futex_unlock(&async_futex);
                         futex_lock(&rcu.sync_lock.futex);
                 } while (rcu.sync_lock.locked);