fix build

Signed-off-by: Yuchen Liang <yuchen@neon.tech>

pageserver/src/bin/pageserver.rs

@@ -173,7 +173,7 @@ fn main() -> anyhow::Result<()> {
         conf.virtual_file_io_engine,
         conf.io_buffer_alignment,
     );
-    page_cache::init(conf.page_cache_size);
+    page_cache::init(conf.page_cache_size, conf.io_buffer_alignment);
 
     start_pageserver(launch_ts, conf).context("Failed to start pageserver")?;
 

pageserver/src/tenant/storage_layer/delta_layer.rs

@@ -1193,7 +1193,6 @@ impl DeltaLayerInner {
         let mut prev: Option<(Key, Lsn, BlobRef)> = None;
 
         let mut read_builder: Option<ChunkedVectoredReadBuilder> = None;
-        let align = virtual_file::get_io_buffer_alignment();
 
         let max_read_size = self
             .max_vectored_read_bytes