svn commit: r324789 - in head/sys: kern sys
Mateusz Guzik
mjg at FreeBSD.org
Fri Oct 20 04:02:54 UTC 2017
Author: mjg
Date: Fri Oct 20 04:02:53 2017
New Revision: 324789
URL: https://svnweb.freebsd.org/changeset/base/324789
Log:
Mark kdb_active as __read_frequently and switch to bool to eat less space.
Modified:
head/sys/kern/subr_kdb.c
head/sys/sys/kdb.h
Modified: head/sys/kern/subr_kdb.c
==============================================================================
--- head/sys/kern/subr_kdb.c Fri Oct 20 03:38:58 2017 (r324788)
+++ head/sys/kern/subr_kdb.c Fri Oct 20 04:02:53 2017 (r324789)
@@ -50,7 +50,7 @@ __FBSDID("$FreeBSD$");
#include <machine/smp.h>
#endif
-int kdb_active = 0;
+bool __read_frequently kdb_active = 0;
static void *kdb_jmpbufp = NULL;
struct kdb_dbbe *kdb_dbbe = NULL;
static struct pcb kdb_pcb;
Modified: head/sys/sys/kdb.h
==============================================================================
--- head/sys/sys/kdb.h Fri Oct 20 03:38:58 2017 (r324788)
+++ head/sys/sys/kdb.h Fri Oct 20 04:02:53 2017 (r324789)
@@ -59,7 +59,7 @@ struct kdb_dbbe {
}; \
DATA_SET(kdb_dbbe_set, name##_dbbe)
-extern int kdb_active; /* Non-zero while in debugger. */
+extern bool kdb_active; /* Non-zero while in debugger. */
extern int debugger_on_panic; /* enter the debugger on panic. */
extern struct kdb_dbbe *kdb_dbbe; /* Default debugger backend or NULL. */
extern struct trapframe *kdb_frame; /* Frame to kdb_trap(). */
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