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authorsam <sam@FreeBSD.org>2003-11-05 23:42:51 +0000
committersam <sam@FreeBSD.org>2003-11-05 23:42:51 +0000
commit0927f68a4503fa8ab92003e394032c483b3c32c5 (patch)
tree2123cf5ccfc35f8e4b70b2c2a96394a1aba17b84 /sys/net/netisr.c
parent09e99681c0a5abf9fd6d76407d5adb96f3d3c96e (diff)
downloadFreeBSD-src-0927f68a4503fa8ab92003e394032c483b3c32c5.zip
FreeBSD-src-0927f68a4503fa8ab92003e394032c483b3c32c5.tar.gz
o make debug_mpsafenet globally visible
o move it from subr_bus.c to netisr.c where it more properly belongs o add NET_PICKUP_GIANT and NET_DROP_GIANT macros that will be used to grab Giant as needed when MPSAFE operation is enabled Supported by: FreeBSD Foundation
Diffstat (limited to 'sys/net/netisr.c')
-rw-r--r--sys/net/netisr.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/net/netisr.c b/sys/net/netisr.c
index 347fd9a..cb24e12 100644
--- a/sys/net/netisr.c
+++ b/sys/net/netisr.c
@@ -53,6 +53,16 @@
#include <net/if_var.h>
#include <net/netisr.h>
+/*
+ * XXX this is a temporary measure to allow folks to
+ * XXX disable Giant locking in the network code without
+ * XXX recompiling--in case of problems.
+ */
+int debug_mpsafenet = 0;
+TUNABLE_INT("debug.mpsafenet", &debug_mpsafenet);
+SYSCTL_INT(_debug, OID_AUTO, mpsafenet, CTLFLAG_RD, &debug_mpsafenet, 0,
+ "Enable/disable MPSAFE network support");
+
volatile unsigned int netisr; /* scheduling bits for network */
struct netisr {
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