Author: kmacy
Date: Wed May 20 22:28:39 2009
New Revision: 192491
URL: http://svn.freebsd.org/changeset/base/192491
Log:
MFC quad tunables and sysctls for setting ZFS arc cache size
Modified:
stable/7/sys/kern/kern_environment.c
stable/7/sys/sys/kernel.h
stable/7/sys/sys/sysctl.h
Modified: stable/7/sys/kern/kern_environment.c
==============================================================================
--- stable/7/sys/kern/kern_environment.c Wed May 20 22:27:18 2009 (r192490)
+++ stable/7/sys/kern/kern_environment.c Wed May 20 22:28:39 2009 (r192491)
@@ -553,6 +553,14 @@ tunable_ulong_init(void *data)
}
void
+tunable_quad_init(void *data)
+{
+ struct tunable_quad *d = (struct tunable_quad *)data;
+
+ TUNABLE_QUAD_FETCH(d->path, d->var);
+}
+
+void
tunable_str_init(void *data)
{
struct tunable_str *d = (struct tunable_str *)data;
Modified: stable/7/sys/sys/kernel.h
==============================================================================
--- stable/7/sys/sys/kernel.h Wed May 20 22:27:18 2009 (r192490)
+++ stable/7/sys/sys/kernel.h Wed May 20 22:28:39 2009 (r192491)
@@ -329,6 +329,25 @@ struct tunable_ulong {
#define TUNABLE_ULONG_FETCH(path, var) getenv_ulong((path), (var))
+/*
+ * quad
+ */
+extern void tunable_quad_init(void *);
+struct tunable_quad {
+ const char *path;
+ quad_t *var;
+};
+#define TUNABLE_QUAD(path, var) \
+ static struct tunable_quad __CONCAT(__tunable_quad_, __LINE__) = { \
+ (path), \
+ (var), \
+ }; \
+ SYSINIT(__CONCAT(__Tunable_init_, __LINE__), \
+ SI_SUB_TUNABLES, SI_ORDER_MIDDLE, tunable_quad_init, \
+ &__CONCAT(__tunable_quad_, __LINE__))
+
+#define TUNABLE_QUAD_FETCH(path, var) getenv_quad((path), (var))
+
extern void tunable_str_init(void *);
struct tunable_str {
const char *path;
Modified: stable/7/sys/sys/sysctl.h
==============================================================================
--- stable/7/sys/sys/sysctl.h Wed May 20 22:27:18 2009 (r192490)
+++ stable/7/sys/sys/sysctl.h Wed May 20 22:28:39 2009 (r192491)
@@ -295,6 +295,15 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_e
sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|CTLFLAG_MPSAFE|(access), \
ptr, 0, sysctl_handle_long, "LX", __DESCR(descr))
+/* Oid for a quad. The pointer must be non NULL. */
+#define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
+ SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|CTLFLAG_MPSAFE|(access), \
+ ptr, val, sysctl_handle_quad, "Q", __DESCR(descr))
+
+#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \
+ sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_QUAD|CTLFLAG_MPSAFE|(access), \
+ ptr, 0, sysctl_handle_quad, "Q", __DESCR(descr))
+
/* Oid for an opaque object. Specified by a pointer and a length. */
#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \