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-rw-r--r--sysdeps/unix/sysv/linux/bits/fcntl-linux.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
index 4b4d6f7ae5..3f32eb328b 100644
--- a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
@@ -284,6 +284,8 @@ struct f_owner_ex
# define F_SEAL_SHRINK 0x0002 /* Prevent file from shrinking. */
# define F_SEAL_GROW 0x0004 /* Prevent file from growing. */
# define F_SEAL_WRITE 0x0008 /* Prevent writes. */
+# define F_SEAL_FUTURE_WRITE 0x0010 /* Prevent future writes while
+ mapped. */
#endif
#ifdef __USE_GNU