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-rw-r--r--include/linux/exportfs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index e7de0103a32e..2fcbab0f6b61 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -214,6 +214,7 @@ struct export_operations {
int (*commit_blocks)(struct inode *inode, struct iomap *iomaps,
int nr_iomaps, struct iattr *iattr);
#define EXPORT_OP_NOWCC (0x1) /* Don't collect wcc data for NFSv3 replies */
+#define EXPORT_OP_NOSUBTREECHK (0x2) /* Subtree checking is not supported! */
unsigned long flags;
};