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-rw-r--r--include/sys/swap.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sys/swap.h b/include/sys/swap.h
index 1bd6159e..11c0f929 100644
--- a/include/sys/swap.h
+++ b/include/sys/swap.h
@@ -9,6 +9,7 @@ extern "C" {
 #define	SWAP_FLAG_PREFER        0x8000
 #define	SWAP_FLAG_PRIO_MASK     0x7fff
 #define	SWAP_FLAG_PRIO_SHIFT    0
+#define SWAP_FLAG_DISCARD       0x10000
 
 int swapon (const char *, int);
 int swapoff (const char *);