From: "Daniel M. Weeks" <dan@danweeks.net>
To: Michal Marek <mmarek@suse.cz>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] Fix flags for initramfs LZ4 compression
Date: Sat, 15 Feb 2014 18:14:57 -0500 [thread overview]
Message-ID: <20140215231447.GA30803@dev.danweeks.net> (raw)
LZ4 as implemented in the kernel differs from the default method now
used by the reference implementation of LZ4. Until the in-kernel method
is updated to support the new default, passing the legacy flag (-l) to
the compressor is necessary. Without this flag the kernel-generated,
LZ4-compressed initramfs is junk.
Signed-off-by: Daniel M. Weeks <dan@danweeks.net>
---
scripts/gen_initramfs_list.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh
index ef47409..17fa901 100644
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -257,7 +257,7 @@ case "$arg" in
&& compr="lzop -9 -f"
echo "$output_file" | grep -q "\.lz4$" \
&& [ -x "`which lz4 2> /dev/null`" ] \
- && compr="lz4 -9 -f"
+ && compr="lz4 -l -9 -f"
echo "$output_file" | grep -q "\.cpio$" && compr="cat"
shift
;;
--
Daniel M. Weeks
next reply other threads:[~2014-02-15 23:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-15 23:14 Daniel M. Weeks [this message]
2014-02-19 0:06 ` [PATCH] Fix flags for initramfs LZ4 compression Andrew Morton
2014-02-19 0:08 ` Andrew Morton
2014-02-19 7:51 ` Kyungsik Lee
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