The patch titled
Subject: include/linux/mmzone.h: remove ancient/ambiguous comment
has been added to the -mm tree. Its filename is
mm-remove-ancient-ambiguous-comment.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-remove-ancient-ambiguous-comment.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-remove-ancient-ambiguous-comment.patch
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------------------------------------------------------
From: Nikolay Borisov <nborisov@xxxxxxxx>
Subject: include/linux/mmzone.h: remove ancient/ambiguous comment
Currently pg_data_t is just a struct which describes a NUMA node memory
layout. Let's keep the comment simple and remove ambiguity.
Link: http://lkml.kernel.org/r/1498220534-22717-1-git-send-email-nborisov@xxxxxxxx
Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mmzone.h | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff -puN include/linux/mmzone.h~mm-remove-ancient-ambiguous-comment include/linux/mmzone.h
--- a/include/linux/mmzone.h~mm-remove-ancient-ambiguous-comment
+++ a/include/linux/mmzone.h
@@ -603,12 +603,9 @@ extern struct page *mem_map;
#endif
/*
- * The pg_data_t structure is used in machines with CONFIG_DISCONTIGMEM
- * (mostly NUMA machines?) to denote a higher-level memory zone than the
- * zone denotes.
- *
* On NUMA machines, each NUMA node would have a pg_data_t to describe
- * it's memory layout.
+ * it's memory layout. On UMA machines there is a single pglist_data which
+ * describes the whole memory.
*
* Memory statistics and page replacement data structures are maintained on a
* per-zone basis.
_
Patches currently in -mm which might be from nborisov@xxxxxxxx are
mm-remove-ancient-ambiguous-comment.patch
writeback-rework-wb__stat-family-of-functions.patch
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