From: Alan Cox <alan@linux.intel.com>
Date: Thu, 19 Feb 2015 23:20:35 +0000 (+0000)
Subject: bank32k: add reminder about stack
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=915aa1eeebcba865a55f5726db9e9e4202fec3f4;p=FUZIX.git

bank32k: add reminder about stack
---

diff --git a/Kernel/bank32k.c b/Kernel/bank32k.c
index b5aaa653..34d70723 100644
--- a/Kernel/bank32k.c
+++ b/Kernel/bank32k.c
@@ -34,6 +34,8 @@
  *   then copy in the new one
  * - Provide a bank32_invalidate_cache definition to clear the cached page
  *   when it is freed.
+ * - Switch stacks when you switch to and from full kernel mapping to user
+ *   mappings as there is no common space for the kernel stacks.
  *
  *   If you are also doing swapping then you need to account for the cache
  *   by providing a swap_flush_cache() method (see swap.c)