From 63b3c44d273d03fe3ac98d6f7c8e8475b468b44e Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Tue, 25 May 2021 13:29:51 +0200 Subject: Add support for erofs filesystems Since Linux 5.4 a new read-only filesystem is available, erofs. Compared to squashfs it offers much better read performance with and without compression enabled. It suppports two optional compressors, lz4 and lz4hc. >From the mkfs.erofs man page: EROFS is a new enhanced lightweight linux read-only filesystem with modern designs (eg. no buffer head, reduced metadata, inline xattrs/data, etc.) for scenarios which need high-performance read-only requirements, e.g. Android OS for smartphones and LIVECDs. It also provides fixed-sized output compression support, which improves storage density, keeps relatively higher compression ratios, which is more useful to achieve high performance for embedded devices with limited memory since it has unnoticable memory overhead and page cache thrashing. This commit adds support for three new filesystem targets: erofs: erofs without compression erofs-lz4: erofs with lz4 compresssion enabled erofs-lz4hc: erofs with lz4hc compression enabled (From OE-Core rev: 41dead1ff8ccc49e6cd6e6f5d41a59d164693e0d) Signed-off-by: Richard Weinberger Signed-off-by: Richard Purdie --- scripts/lib/wic/ksparser.py | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'scripts/lib/wic/ksparser.py') diff --git a/scripts/lib/wic/ksparser.py b/scripts/lib/wic/ksparser.py index 3eb669da39..7a4cc83af5 100644 --- a/scripts/lib/wic/ksparser.py +++ b/scripts/lib/wic/ksparser.py @@ -157,7 +157,8 @@ class KickStart(): part.add_argument('--fsoptions', dest='fsopts') part.add_argument('--fstype', default='vfat', choices=('ext2', 'ext3', 'ext4', 'btrfs', - 'squashfs', 'vfat', 'msdos', 'swap')) + 'squashfs', 'vfat', 'msdos', 'erofs', + 'swap')) part.add_argument('--mkfs-extraopts', default='') part.add_argument('--label') part.add_argument('--use-label', action='store_true') @@ -229,6 +230,10 @@ class KickStart(): err = "%s:%d: SquashFS does not support LABEL" \ % (confpath, lineno) raise KickStartError(err) + # erofs does not support filesystem labels + if parsed.fstype == 'erofs' and parsed.label: + err = "%s:%d: erofs does not support LABEL" % (confpath, lineno) + raise KickStartError(err) if parsed.fstype == 'msdos' or parsed.fstype == 'vfat': if parsed.fsuuid: if parsed.fsuuid.upper().startswith('0X'): -- cgit v1.2.3-54-g00ecf