Merge tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd...

[linux-block.git] / include / asm-generic / qrwlock.h

diff --git a/include/asm-generic/qrwlock.h b/include/asm-generic/qrwlock.h
index d4cd4cc4389c0682ef5e164b56be1afabb3b323a..75b8f4601b28a1fd49d9ae97c21388d2502507f9 100644 (file)
--- a/include/asm-generic/qrwlock.h
+++ b/include/asm-generic/qrwlock.h
@@ -2,6 +2,10 @@
 /*
  * Queue read/write lock
  *
+ * These use generic atomic and locking routines, but depend on a fair spinlock
+ * implementation in order to be fair themselves.  The implementation in
+ * asm-generic/spinlock.h meets these requirements.
+ *
  * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
  *
  * Authors: Waiman Long <waiman.long@hp.com>