diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 2cec25ad54b7..4404d21649ff 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -826,9 +826,12 @@ static const struct super_operations fuse_super_operations = {
 
 static void sanitize_global_limit(unsigned *limit)
 {
+	/*
+	 * The default maximum number of async requests is calculated to consume
+	 * 1/2^13 of the total memory, assuming 392 bytes per request.
+	 */
 	if (*limit == 0)
-		*limit = ((totalram_pages() << PAGE_SHIFT) >> 13) /
-			 sizeof(struct fuse_req);
+		*limit = ((totalram_pages() << PAGE_SHIFT) >> 13) / 392;
 
 	if (*limit >= 1 << 16)
 		*limit = (1 << 16) - 1;