Since the "vm_region" structure appears to be relevant only under
NOMMU, conditionally include it in mm_types.h.
Signed-off-by: Robert P. J. Day <rpjday@xxxxxxxxxxxxxx>
---
if i read mm_types.h, i can see the obvious conditional inclusion:
#ifndef CONFIG_MMU
struct vm_region *vm_region; /* NOMMU mapping region */
#endif
since that's the case, it seems only consistent to make the structure
declaration itself similarly conditional, no?
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index b8bb9a6..76f1174 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -102,6 +102,7 @@ struct page {
#endif
};
+#ifndef CONFIG_MMU
/*
* A region containing a mapping of a non-memory backed file under NOMMU
* conditions. These are held in a global tree and are pinned by the VMAs that
@@ -120,6 +121,7 @@ struct vm_region {
bool vm_icache_flushed : 1; /* true if the icache has been flushed for
* this region */
};
+#endif
/*
* This struct defines a memory VMM memory area. There is one of these
========================================================================
Robert P. J. Day Waterloo, Ontario, CANADA
Linux Consulting, Training and Kernel Pedantry.
Web page: http://crashcourse.ca
Twitter: http://twitter.com/rpjday
========================================================================
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxxx For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>