Author: hselasky
Date: Mon Oct 19 10:56:32 2015
New Revision: 289565
URL: https://svnweb.freebsd.org/changeset/base/289565
Log:
Merge LinuxKPI changes from DragonflyBSD:
- Implement pagefault_disable() and pagefault_enable().
Sponsored by: Mellanox Technologies
Modified:
head/sys/ofed/include/linux/uaccess.h
Modified: head/sys/ofed/include/linux/uaccess.h
==============================================================================
--- head/sys/ofed/include/linux/uaccess.h Mon Oct 19 10:54:24 2015
(r289564)
+++ head/sys/ofed/include/linux/uaccess.h Mon Oct 19 10:56:32 2015
(r289565)
@@ -2,7 +2,8 @@
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
- * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
+ * Copyright (c) 2013-2015 Mellanox Technologies, Ltd.
+ * Copyright (c) 2015 François Tigeot
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -32,4 +33,14 @@
#define get_user(_x, _p) -copyin((_p), &(_x), sizeof(*(_p)))
#define put_user(_x, _p) -copyout(&(_x), (_p), sizeof(*(_p)))
+static inline void pagefault_disable(void)
+{
+ curthread_pflags_set(TDP_NOFAULTING | TDP_RESETSPUR);
+}
+
+static inline void pagefault_enable(void)
+{
+ curthread_pflags_restore(~(TDP_NOFAULTING | TDP_RESETSPUR));
+}
+
#endif /* _LINUX_UACCESS_H_ */
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