svn commit: r329961 - stable/11/sys/compat/linuxkpi/common/include/linux

[Hans Petter Selasky]

Author: hselasky
Date: Sun Feb 25 10:25:47 2018
New Revision: 329961
URL: https://svnweb.freebsd.org/changeset/base/329961

Log:
  MFC r329468:
  Add support for kref_read() function in the LinuxKPI.
  
  Submitted by:	Johannes Lundberg <johalun0 at gmail.com>
  Sponsored by:	Mellanox Technologies

Modified:
  stable/11/sys/compat/linuxkpi/common/include/linux/kref.h
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/compat/linuxkpi/common/include/linux/kref.h
==============================================================================
--- stable/11/sys/compat/linuxkpi/common/include/linux/kref.h	Sun Feb 25 10:24:59 2018	(r329960)
+++ stable/11/sys/compat/linuxkpi/common/include/linux/kref.h	Sun Feb 25 10:25:47 2018	(r329961)
@@ -52,6 +52,13 @@ kref_init(struct kref *kref)
 	refcount_init(&kref->refcount.counter, 1);
 }
 
+static inline unsigned int
+kref_read(const struct kref *kref)
+{
+
+	return (atomic_read(&kref->refcount));
+}
+
 static inline void
 kref_get(struct kref *kref)
 {