patch-2.0.31 linux/ipc/shm.c

• Lines: 20
• Date: Mon Aug 4 15:25:11 1997
• Orig file: v2.0.30/linux/ipc/shm.c
• Orig date: Fri Nov 22 06:25:18 1996

diff -u --recursive --new-file v2.0.30/linux/ipc/shm.c linux/ipc/shm.c
@@ -13,6 +13,7 @@
 #include <linux/stat.h>
 #include <linux/malloc.h>
 #include <linux/swap.h>
+#include <linux/swapctl.h>
 
 #include <asm/segment.h>
 #include <asm/pgtable.h>
@@ -672,6 +673,11 @@
 			shm_swp--;
 		}
 		shm_rss++;
+
+		/* Give the physical reallocated page a bigger start */
+		if (shm_rss < (MAP_NR(high_memory) >> 3))
+			mem_map[MAP_NR(page)].age = (PAGE_INITIAL_AGE + PAGE_ADVANCE);
+
 		pte = pte_mkdirty(mk_pte(page, PAGE_SHARED));
 		shp->shm_pages[idx] = pte_val(pte);
 	} else