From 7153fc9379dd5910c688925ccd2e0a03b9551a6d Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Wed, 13 Jul 2022 22:38:43 -0600
Subject: Buffer FS IO

---
 lib/btrfsprogs/btrfsutil/open.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'lib/btrfsprogs/btrfsutil')

diff --git a/lib/btrfsprogs/btrfsutil/open.go b/lib/btrfsprogs/btrfsutil/open.go
index 0f3b32a..9491a20 100644
--- a/lib/btrfsprogs/btrfsutil/open.go
+++ b/lib/btrfsprogs/btrfsutil/open.go
@@ -28,8 +28,13 @@ func Open(ctx context.Context, flag int, filenames ...string) (*btrfs.FS, error)
 		typedFile := &diskio.OSFile[btrfsvol.PhysicalAddr]{
 			File: osFile,
 		}
+		bufFile := diskio.NewBufferedFile[btrfsvol.PhysicalAddr](
+			typedFile,
+			16384, // block size: 16KiB
+			1024,  // number of blocks to buffer; total of 16MiB
+		)
 		devFile := &btrfs.Device{
-			File: typedFile,
+			File: bufFile,
 		}
 		if err := fs.AddDevice(ctx, devFile); err != nil {
 			return nil, fmt.Errorf("device file %q: %w", filename, err)
-- 
cgit v1.2.3-2-g168b