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-rw-r--r--include/linux/mmzone.h24
1 files changed, 14 insertions, 10 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 35a7b5e19465..09c14e213b63 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -263,6 +263,19 @@ enum zone_type {
263#error ZONES_SHIFT -- too many zones configured adjust calculation 263#error ZONES_SHIFT -- too many zones configured adjust calculation
264#endif 264#endif
265 265
266struct zone_reclaim_stat {
267 /*
268 * The pageout code in vmscan.c keeps track of how many of the
269 * mem/swap backed and file backed pages are refeferenced.
270 * The higher the rotated/scanned ratio, the more valuable
271 * that cache is.
272 *
273 * The anon LRU stats live in [0], file LRU stats in [1]
274 */
275 unsigned long recent_rotated[2];
276 unsigned long recent_scanned[2];
277};
278
266struct zone { 279struct zone {
267 /* Fields commonly accessed by the page allocator */ 280 /* Fields commonly accessed by the page allocator */
268 unsigned long pages_min, pages_low, pages_high; 281 unsigned long pages_min, pages_low, pages_high;
@@ -315,16 +328,7 @@ struct zone {
315 unsigned long nr_scan; 328 unsigned long nr_scan;
316 } lru[NR_LRU_LISTS]; 329 } lru[NR_LRU_LISTS];
317 330
318 /* 331 struct zone_reclaim_stat reclaim_stat;
319 * The pageout code in vmscan.c keeps track of how many of the
320 * mem/swap backed and file backed pages are refeferenced.
321 * The higher the rotated/scanned ratio, the more valuable
322 * that cache is.
323 *
324 * The anon LRU stats live in [0], file LRU stats in [1]
325 */
326 unsigned long recent_rotated[2];
327 unsigned long recent_scanned[2];
328 332
329 unsigned long pages_scanned; /* since last reclaim */ 333 unsigned long pages_scanned; /* since last reclaim */
330 unsigned long flags; /* zone flags, see below */ 334 unsigned long flags; /* zone flags, see below */