zfs_arc plugin: cleanup defines

diff --git a/src/zfs_arc.c b/src/zfs_arc.c
index e1c3937..300fda2 100644 (file)
--- a/src/zfs_arc.c
+++ b/src/zfs_arc.c
@@ -103,7 +103,7 @@ static void free_zfs_values (kstat_t *ksp)
        llist_destroy (ksp);
 }
 
-#elif !defined(__FreeBSD__) // Solaris
+#elif defined(KERNEL_SOLARIS)
 extern kstat_ctl_t *kc;
 
 static long long get_zfs_value(kstat_t *ksp, char *name)
@@ -111,7 +111,7 @@ static long long get_zfs_value(kstat_t *ksp, char *name)
 
        return (get_kstat_value(ksp, name));
 }
-#else // FreeBSD
+#elif defined(KERNEL_FREEBSD)
 #include <sys/types.h>
 #include <sys/sysctl.h>
 
@@ -219,7 +219,7 @@ static int za_read (void)
        value_t  l2_io[2];
        kstat_t  *ksp   = NULL;
 
-#if KERNEL_LINUX
+#if defined(KERNEL_LINUX)
        FILE *fh;
        char buffer[1024];
 
@@ -259,7 +259,7 @@ static int za_read (void)
 
        fclose (fh);
 
-#elif !defined(__FreeBSD__) // Solaris
+#elif defined(KERNEL_SOLARIS)
        get_kstat (&ksp, "zfs", 0, "arcstats");
        if (ksp == NULL)
        {
@@ -284,9 +284,9 @@ static int za_read (void)
 
        /* Operations */
        za_read_derive (ksp, "deleted",  "cache_operation", "deleted");
-#if __FreeBSD__
+#if defined(KERNEL_FREEBSD)
        za_read_derive (ksp, "allocated","cache_operation", "allocated");
-#if defined(__FreeBSD_version) && (__FreeBSD_version < 1002501)
+#if __FreeBSD_version < 1002501
        /* stolen removed from sysctl kstat.zfs.misc.arcstats on FreeBSD 10.2+ */
        za_read_derive (ksp, "stolen",   "cache_operation", "stolen");
 #endif
@@ -335,7 +335,7 @@ static int za_read (void)
 
 static int za_init (void) /* {{{ */
 {
-#if !defined(__FreeBSD__) && !defined(KERNEL_LINUX) // Solaris
+#if defined(KERNEL_SOLARIS)
        /* kstats chain already opened by update_kstat (using *kc), verify everything went fine. */
        if (kc == NULL)
        {