d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

lockstat:::thread-spin should only fire after spinning for the lock.

Browse Source 
MFC after:	1 week
This commit is contained in:
Mark Johnston 2016-05-18 03:21:21 +00:00
parent 008024f2b8
commit 156fbc14a0
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sys/kern/kern_mutex.c
View File

@ -714,7 +714,8 @@ retry:
LOCK_LOG_LOCK("LOCK", &m->lock_object, opts, m->mtx_recurse, file,
line);
WITNESS_LOCK(&m->lock_object, opts | LOP_EXCLUSIVE, file, line);
LOCKSTAT_RECORD1(thread__spin, m, spin_time);
if (spin_time != 0)
LOCKSTAT_RECORD1(thread__spin, m, spin_time);
}
struct mtx *