Author: mjg
Date: Mon May 7 23:10:12 2018
New Revision: 333342
URL: https://svnweb.freebsd.org/changeset/base/333342
Log:
Change trap_enotcap to bool and annotate with __read_frequently
It is read on each return to user space.
Modified:
head/sys/kern/sys_capability.c
head/sys/sys/capsicum.h
Modified: head/sys/kern/sys_capability.c
==============================================================================
--- head/sys/kern/sys_capability.c Mon May 7 23:10:02 2018
(r333341)
+++ head/sys/kern/sys_capability.c Mon May 7 23:10:12 2018
(r333342)
@@ -85,8 +85,8 @@ __FBSDID("$FreeBSD$");
#include <vm/uma.h>
#include <vm/vm.h>
-int trap_enotcap;
-SYSCTL_INT(_kern, OID_AUTO, trap_enotcap, CTLFLAG_RW, &trap_enotcap, 0,
+bool __read_frequently trap_enotcap;
+SYSCTL_BOOL(_kern, OID_AUTO, trap_enotcap, CTLFLAG_RW, &trap_enotcap, 0,
"Deliver SIGTRAP on ENOTCAPABLE");
#ifdef CAPABILITY_MODE
Modified: head/sys/sys/capsicum.h
==============================================================================
--- head/sys/sys/capsicum.h Mon May 7 23:10:02 2018 (r333341)
+++ head/sys/sys/capsicum.h Mon May 7 23:10:12 2018 (r333342)
@@ -370,7 +370,7 @@ int cap_ioctl_check(struct filedesc *fdp, int fd, u_lo
int cap_fcntl_check_fde(struct filedescent *fde, int cmd);
int cap_fcntl_check(struct filedesc *fdp, int fd, int cmd);
-extern int trap_enotcap;
+extern bool trap_enotcap;
#else /* !_KERNEL */
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