diff --git a/src/fsslower/fsslower.c b/src/fsslower/fsslower.c
index 3fa93a41d1ca62443569fc6bd3a6d028153986c1..f3cde5810afe1dd7075b4df10f313bf24c8072ed 100644
--- a/src/fsslower/fsslower.c
+++ b/src/fsslower/fsslower.c
@@ -13,3 +13,33 @@ enum fs_type {
 	NFS,
 	XFS,
 };
+
+static struct fs_config {
+	const char *fs;
+	const char *op_funcs[F_MAX_OP];
+} fs_configs[] = {
+	[BTRFS] = { "btrfs", {
+		[F_READ] = "btrfs_file_read_iter",
+		[F_WRITE] = "btrfs_file_write_iter",
+		[F_OPEN] = "btrfs_file_open",
+		[F_FSYNC] = "btrfs_sync_file",
+	}},
+	[EXT4] = { "ext4", {
+		[F_READ] = "ext4_file_read_iter",
+		[F_WRITE] = "ext4_file_write_iter",
+		[F_OPEN] = "ext4_file_open",
+		[F_FSYNC] = "ext4_sync_file",
+	}},
+	[NFS] = { "nfs", {
+		[F_READ] = "nfs_file_read",
+		[F_WRITE] = "nfs_file_write",
+		[F_OPEN] = "nfs_file_open",
+		[F_FSYNC] = "nfs_file_fsync",
+	}},
+	[XFS] = { "xfs", {
+		[F_READ] = "xfs_file_read_iter",
+		[F_WRITE] = "xfs_file_write_iter",
+		[F_OPEN] = "xfs_file_open",
+		[F_FSYNC] = "xfs_file_fsync",
+	}},
+};