Author: vangyzen
Date: Wed Jan 13 22:34:55 2016
New Revision: 293858
URL: https://svnweb.freebsd.org/changeset/base/293858
Log:
libthr: const-ify two variables
Make the default umutex and urwlock initializers const,
because they can be, and as a microoptimization.
MFC after: 5 days
Sponsored by: Dell Inc.
Modified:
head/lib/libthr/thread/thr_umtx.c
Modified: head/lib/libthr/thread/thr_umtx.c
==============================================================================
--- head/lib/libthr/thread/thr_umtx.c Wed Jan 13 21:56:48 2016
(r293857)
+++ head/lib/libthr/thread/thr_umtx.c Wed Jan 13 22:34:55 2016
(r293858)
@@ -42,7 +42,7 @@ int _umtx_op_err(void *obj, int op, u_lo
void
_thr_umutex_init(struct umutex *mtx)
{
- static struct umutex default_mtx = DEFAULT_UMUTEX;
+ static const struct umutex default_mtx = DEFAULT_UMUTEX;
*mtx = default_mtx;
}
@@ -50,7 +50,8 @@ _thr_umutex_init(struct umutex *mtx)
void
_thr_urwlock_init(struct urwlock *rwl)
{
- static struct urwlock default_rwl = DEFAULT_URWLOCK;
+ static const struct urwlock default_rwl = DEFAULT_URWLOCK;
+
*rwl = default_rwl;
}
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