summaryrefslogtreecommitdiff
path: root/kern/lock.h
diff options
context:
space:
mode:
authorJustus Winter <4winter@informatik.uni-hamburg.de>2015-07-18 01:26:22 +0200
committerJustus Winter <4winter@informatik.uni-hamburg.de>2015-08-15 12:43:26 +0200
commitfff012df46942c355a705b91a342923b7680002c (patch)
tree039b5af20aab520af439ab42f6f2cb387d13b223 /kern/lock.h
parentc2b24d5189dc2e7faac2e7df490298dad79985d8 (diff)
kern/lock: add lock_taken
* kern/lock.h (lock_taken): New macro.
Diffstat (limited to 'kern/lock.h')
-rw-r--r--kern/lock.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/kern/lock.h b/kern/lock.h
index 435ee1d..ca7b1db 100644
--- a/kern/lock.h
+++ b/kern/lock.h
@@ -182,6 +182,7 @@ extern boolean_t lock_try_read_to_write(lock_t);
#define lock_read_done(l) lock_done(l)
#define lock_write_done(l) lock_done(l)
+#define lock_taken(l) ((l)->want_write || (l)->read_count)
extern void lock_set_recursive(lock_t);
extern void lock_clear_recursive(lock_t);