diff --git a/fs/inode.c b/fs/inode.c
index fef457a42882..12c9e38529c9 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -2145,30 +2145,6 @@ void inode_nohighmem(struct inode *inode)
 }
 EXPORT_SYMBOL(inode_nohighmem);
 
-/**
- * timespec64_trunc - Truncate timespec64 to a granularity
- * @t: Timespec64
- * @gran: Granularity in ns.
- *
- * Truncate a timespec64 to a granularity. Always rounds down. gran must
- * not be 0 nor greater than a second (NSEC_PER_SEC, or 10^9 ns).
- */
-struct timespec64 timespec64_trunc(struct timespec64 t, unsigned gran)
-{
-	/* Avoid division in the common cases 1 ns and 1 s. */
-	if (gran == 1) {
-		/* nothing */
-	} else if (gran == NSEC_PER_SEC) {
-		t.tv_nsec = 0;
-	} else if (gran > 1 && gran < NSEC_PER_SEC) {
-		t.tv_nsec -= t.tv_nsec % gran;
-	} else {
-		WARN(1, "illegal file time granularity: %u", gran);
-	}
-	return t;
-}
-EXPORT_SYMBOL(timespec64_trunc);
-
 /**
  * timestamp_truncate - Truncate timespec to a granularity
  * @t: Timespec
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 98e0349adb52..46dd7e6f6d73 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1575,7 +1575,6 @@ static inline void i_gid_write(struct inode *inode, gid_t gid)
 	inode->i_gid = make_kgid(inode->i_sb->s_user_ns, gid);
 }
 
-extern struct timespec64 timespec64_trunc(struct timespec64 t, unsigned gran);
 extern struct timespec64 current_time(struct inode *inode);
 
 /*