svn commit: r335425 - stable/11/sys/compat/linuxkpi/common/include/linux

[Hans Petter Selasky]

Author: hselasky
Date: Wed Jun 20 06:49:26 2018
New Revision: 335425
URL: https://svnweb.freebsd.org/changeset/base/335425

Log:
  MFC r334715:
  Implement the might_sleep_if() function macro in the LinuxKPI.
  
  Submitted by:	Johannes Lundberg <johalun0 at gmail.com>
  Sponsored by:	Mellanox Technologies
  Sponsored by:	Limelight Networks

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

Modified: stable/11/sys/compat/linuxkpi/common/include/linux/wait.h
==============================================================================
--- stable/11/sys/compat/linuxkpi/common/include/linux/wait.h	Wed Jun 20 06:48:41 2018	(r335424)
+++ stable/11/sys/compat/linuxkpi/common/include/linux/wait.h	Wed Jun 20 06:49:26 2018	(r335425)
@@ -47,6 +47,10 @@
 #define	might_sleep()							\
 	WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL, "might_sleep()")
 
+#define	might_sleep_if(cond) do { \
+	if (cond) { might_sleep(); } \
+} while (0)
+
 struct wait_queue;
 struct wait_queue_head;