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

remove wmb() call from x86 cpu_reset()

Browse Source 
The rationale is pretty much the same as in r353747.
There is no subsequent dependent store.
The store is to the regular (TSO) memory anyway.

MFC after:	23 days
This commit is contained in:
Andriy Gapon 2019-10-19 07:13:15 +00:00
parent 869dbab7ba
commit 3aa8a8ed2d
1 changed files with 0 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
sys/x86/x86/cpu_machdep.c
View File

@ -390,7 +390,6 @@ cpu_reset(void)
mb = &pcpu_find(0)->pc_monitorbuf;
atomic_store_int(&mb->stop_state,
MONITOR_STOPSTATE_RUNNING);
wmb();
cnt = 0;
while (cpu_reset_proxy_active == 0 && cnt < 10000000) {