From: Eric Biggers <ebiggers@xxxxxxxxxx>
Create the file common/f2fs, which will contain f2fs-specific utilities.
Then add a function _require_scratch_f2fs_compression(), which checks
for f2fs compression support on the scratch filesystem.
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
common/f2fs | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
create mode 100644 common/f2fs
diff --git a/common/f2fs b/common/f2fs
new file mode 100644
index 00000000..1b39d8ce
--- /dev/null
+++ b/common/f2fs
@@ -0,0 +1,27 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright 2020 Google LLC
+
+# Require f2fs compression support on the scratch filesystem.
+# Optionally, check for support for a specific compression algorithm.
+_require_scratch_f2fs_compression()
+{
+ local algorithm=$1
+
+ _require_scratch
+
+ if [ ! -e /sys/fs/f2fs/features/compression ]; then
+ _notrun "Kernel doesn't support f2fs compression"
+ fi
+ # Note: '-O compression' is only accepted when used in
+ # combination with extra_attr.
+ if ! _scratch_mkfs -O compression,extra_attr >> $seqres.full; then
+ _notrun "f2fs-tools doesn't support compression"
+ fi
+ if [ -n "$algorithm" ]; then
+ if ! _scratch_mount "-o compress_algorithm=$algorithm"; then
+ _notrun "Kernel doesn't support $algorithm compression algorithm for f2fs"
+ fi
+ _scratch_unmount
+ fi
+}
--
2.28.0
|