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-rw-r--r--include/apos/mem.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/apos/mem.h b/include/apos/mem.h
index bc60f21..f3eded7 100644
--- a/include/apos/mem.h
+++ b/include/apos/mem.h
@@ -45,6 +45,8 @@
#define MR_SHARED (1 << 9)
/* owner of shared region */
#define MR_OWNED (1 << 10)
+/* copy on write */
+#define MR_COW (1 << 11)
extern size_t __mm_shifts[10];
extern size_t __mm_widths[10];