Merge pull request trussed-dev#1 from jnordholz/fix-lookahead

Fix RAM macros to configure minimum amount of lookahead.

Author: daringer

src/macros.rs

@@ -93,7 +93,7 @@ macro_rules! ram_storage { (
             cache_size_ty=$crate::consts::U32,
             block_size=128,
             block_count=$bytes/128,
-            lookaheadwords_size_ty=$crate::consts::U1,
+            lookaheadwords_size_ty=$crate::consts::U2,
             filename_max_plus_one_ty=$crate::consts::U256,
             path_max_plus_one_ty=$crate::consts::U256,
             result=LfsResult,
@@ -110,7 +110,7 @@ macro_rules! ram_storage { (
             cache_size_ty=$crate::consts::U32,
             block_size=128,
             block_count=8,
-            lookaheadwords_size_ty=$crate::consts::U1,
+            lookaheadwords_size_ty=$crate::consts::U2,
             filename_max_plus_one_ty=$crate::consts::U256,
             path_max_plus_one_ty=$crate::consts::U256,
             result=Result,
@@ -221,7 +221,7 @@ macro_rules! const_ram_storage { (
             cache_size_ty=$crate::consts::U512,
             block_size=512,
             block_count=$bytes/512,
-            lookaheadwords_size_ty=$crate::consts::U1,
+            lookaheadwords_size_ty=$crate::consts::U2,
             filename_max_plus_one_ty=$crate::consts::U256,
             path_max_plus_one_ty=$crate::consts::U256,
             result=LfsResult,

src/tests.rs

@@ -26,7 +26,7 @@ ram_storage!(
     cache_size_ty=consts::U32,
     block_size=256,
     block_count=512,
-    lookaheadwords_size_ty=consts::U1,
+    lookaheadwords_size_ty=consts::U2,
     filename_max_plus_one_ty=consts::U256,
     path_max_plus_one_ty=consts::U256,
     result=Result,