Author: hselasky
Date: Mon Mar 6 12:22:05 2017
New Revision: 314772
URL: https://svnweb.freebsd.org/changeset/base/314772
Log:
Implement DECLARE_RWSEM() macro in the LinuxKPI to initialize a
Read-Write semaphore during module init time.
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/compat/linuxkpi/common/include/linux/rwsem.h
Modified: head/sys/compat/linuxkpi/common/include/linux/rwsem.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/rwsem.h Mon Mar 6
12:20:56 2017 (r314771)
+++ head/sys/compat/linuxkpi/common/include/linux/rwsem.h Mon Mar 6
12:22:05 2017 (r314772)
@@ -35,6 +35,7 @@
#include <sys/lock.h>
#include <sys/sx.h>
#include <sys/libkern.h>
+#include <sys/kernel.h>
struct rw_semaphore {
struct sx sx;
@@ -61,6 +62,14 @@ struct rw_semaphore {
#define _rwsem_name(...) __rwsem_name(__VA_ARGS__)
#define rwsem_name(name) _rwsem_name(name, __FILE__,
__LINE__)
+#define DECLARE_RWSEM(name)
\
+struct rw_semaphore name; \
+static void name##_rwsem_init(void *arg) \
+{ \
+ linux_init_rwsem(&name, rwsem_name(#name)) \
+} \
+SYSINIT(name, SI_SUB_LOCKS, SI_ORDER_SECOND, name##_rwsem_init, NULL)
+
static inline void
linux_init_rwsem(struct rw_semaphore *rw, const char *name)
{
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