Author: markj
Date: Wed Feb 12 15:46:33 2020
New Revision: 357824
URL: https://svnweb.freebsd.org/changeset/base/357824
Log:
MFC r357573:
Fix map locking in the CLEAR_PKRU sysarch(2) handler.
Modified:
stable/12/sys/amd64/amd64/sys_machdep.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/amd64/amd64/sys_machdep.c
==============================================================================
--- stable/12/sys/amd64/amd64/sys_machdep.c Wed Feb 12 15:26:56 2020
(r357823)
+++ stable/12/sys/amd64/amd64/sys_machdep.c Wed Feb 12 15:46:33 2020
(r357824)
@@ -380,7 +380,7 @@ sysarch(struct thread *td, struct sysarch_args *uap)
error = pmap_pkru_clear(PCPU_GET(curpmap),
(vm_offset_t)a64pkru.addr,
(vm_offset_t)a64pkru.addr + a64pkru.len);
- vm_map_unlock(map);
+ vm_map_unlock_read(map);
break;
default:
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