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From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Wed, 20 Jun 2018 06:49:27 +0000 (UTC)
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Subject: svn commit: r335425 -
 stable/11/sys/compat/linuxkpi/common/include/linux
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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@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;