PERFORCE change 103163 for review
Roman Divacky
rdivacky at FreeBSD.org
Fri Aug 4 13:07:29 UTC 2006
http://perforce.freebsd.org/chv.cgi?CH=103163
Change 103163 by rdivacky at rdivacky_witten on 2006/08/04 13:07:11
Fix the previous commit. set != store. Also change the checking of the refcount
to be atomic as well.
Affected files ...
.. //depot/projects/soc2006/rdivacky_linuxolator/compat/linux/linux_futex.c#14 edit
Differences ...
==== //depot/projects/soc2006/rdivacky_linuxolator/compat/linux/linux_futex.c#14 (text+ko) ====
@@ -284,7 +284,7 @@
/* Not found, create it */
f = malloc(sizeof(*f), M_LINUX, M_WAITOK);
f->f_uaddr = uaddr;
- atomic_set_int(&f->f_refcount, 1);
+ f->f_refcount = 1;
TAILQ_INIT(&f->f_waiting_proc);
FUTEX_LOCK;
LIST_INSERT_HEAD(&futex_list, f, f_list);
@@ -297,8 +297,7 @@
futex_put(f)
struct futex *f;
{
- atomic_add_int(&f->f_refcount, -1);
- if (f->f_refcount == 0) {
+ if (atomic_fetchadd_int(&f->f_refcount, -1) == 1) {
FUTEX_LOCK;
LIST_REMOVE(f, f_list);
FUTEX_UNLOCK;
More information about the p4-projects
mailing list