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authorMel Gorman <mgorman@techsingularity.net>2018-12-28 00:35:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 12:11:48 -0800
commita921444382b49cc7fdeca3fba3e278bc09484a27 (patch)
tree2437250398beef4bc4343ae123716a3d9d7f46ee /include
parentmm, page_alloc: spread allocations across zones before introducing fragmentation (diff)
downloadlinux-dev-a921444382b49cc7fdeca3fba3e278bc09484a27.tar.xz
linux-dev-a921444382b49cc7fdeca3fba3e278bc09484a27.zip
mm: move zone watermark accesses behind an accessor
This is a preparation patch only, no functional change. Link: http://lkml.kernel.org/r/20181123114528.28802-3-mgorman@techsingularity.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: David Rientjes <rientjes@google.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Zi Yan <zi.yan@cs.rutgers.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mmzone.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index bc0990c1f1c3..dcf1b66a96ab 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -269,9 +269,10 @@ enum zone_watermarks {
NR_WMARK
};
-#define min_wmark_pages(z) (z->watermark[WMARK_MIN])
-#define low_wmark_pages(z) (z->watermark[WMARK_LOW])
-#define high_wmark_pages(z) (z->watermark[WMARK_HIGH])
+#define min_wmark_pages(z) (z->_watermark[WMARK_MIN])
+#define low_wmark_pages(z) (z->_watermark[WMARK_LOW])
+#define high_wmark_pages(z) (z->_watermark[WMARK_HIGH])
+#define wmark_pages(z, i) (z->_watermark[i])
struct per_cpu_pages {
int count; /* number of pages in the list */
@@ -362,7 +363,7 @@ struct zone {
/* Read-mostly fields */
/* zone watermarks, access with *_wmark_pages(zone) macros */
- unsigned long watermark[NR_WMARK];
+ unsigned long _watermark[NR_WMARK];
unsigned long nr_reserved_highatomic;