summaryrefslogtreecommitdiffstats
path: root/include/linux/mmzone.h
diff options
context:
space:
mode:
authorNikolay Borisov <nborisov@suse.com>2017-07-10 15:49:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-10 16:32:32 -0700
commit618b8c20d03c9ea06711bd36d906322ba35c0add (patch)
tree7886cf8c599dfaa2e4a8556faa629a406e0cfc88 /include/linux/mmzone.h
parentf07e0f849a921ec8c0b509c8b8030455a2b21f7f (diff)
downloadlinux-stable-618b8c20d03c9ea06711bd36d906322ba35c0add.tar.gz
linux-stable-618b8c20d03c9ea06711bd36d906322ba35c0add.tar.bz2
linux-stable-618b8c20d03c9ea06711bd36d906322ba35c0add.zip
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@suse.com Signed-off-by: Nikolay Borisov <nborisov@suse.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mmzone.h')
-rw-r--r--include/linux/mmzone.h7
1 files changed, 2 insertions, 5 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 7e8f100cb56d..16532fa0bb64 100644
--- a/include/linux/mmzone.h
+++ b/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.