From: P J P <ppandit@redhat.com>
To: klondike <klondike@xiscosoft.sinip.es>
Cc: linux-kernel@vger.kernel.org, Paul Bolle <pebolle@tiscali.nl>
Subject: Re: [PATCH] initramfs: allow again choice of the embedded compression algorithm
Date: Mon, 29 Sep 2014 13:38:32 +0530 (IST) [thread overview]
Message-ID: <alpine.LFD.2.10.1409291328290.15448@wniryva.cad.erqung.pbz> (raw)
In-Reply-To: <54239E69.4050803@klondike.es>
Hello Klondike,
+-- On Thu, 25 Sep 2014, klondike wrote --+
| Despite embedding an uncompressed initramfs, a user may want to allow for a
| compressed extra initramfs to be passed using the rd system, for example to
| boot a recovery system. Commit 9ba4bcb645898d562498ea66a0df958ef0e7a68c
| ("initramfs: read CONFIG_RD_ variables for initramfs compression") broke
| that behavior by making the choice based on CONFIG_RD_* instead of adding
| CONFIG_INITRAMFS_COMPRESSION_LZ4. Saddly, CONFIG_RD_* is also used to
| choose the supported RD compression algorithms by the kernel and a user may
| want to suppport more than one.
Ie. on embedded systems they use CONFIG_INITRAMFS_COMPRESSION_* options to
compress ram disk and on other platforms they use CONFIG_RD_* options?
| As a result the following options are added or readed affecting the embedded
| initramfs compression:
| INITRAMFS_COMPRESSION_NONE Do no compression
| INITRAMFS_COMPRESSION_GZIP Compress using gzip
| INITRAMFS_COMPRESSION_BZIP2 Compress using bzip2
| INITRAMFS_COMPRESSION_LZMA Compress using lzma
| INITRAMFS_COMPRESSION_XZ Compress using xz
| INITRAMFS_COMPRESSION_LZO Compress using lzo
| INITRAMFS_COMPRESSION_LZ4 Compress using lz4
I haven't tested the patch yet, but does it preserve the CONFIG_RD_*
options' functionality?
Would unifying the two options into one be a good idea?
--
- P J P
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F
next prev parent reply other threads:[~2014-09-29 8:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-25 4:47 [PATCH] initramfs: allow again choice of the embedded compression algorithm klondike
2014-09-29 8:08 ` P J P [this message]
2014-09-29 23:42 ` klondike
2016-09-27 19:30 ` [PATCH v2 1/2] " klondike
2016-09-27 19:31 ` [PATCH v2 2/2] " klondike
2016-09-27 20:32 ` [PATCH v3 1/2] initramfs: Select builtin initram compression algorithm on KConfig instead of Makefile klondike
[not found] ` <57EAD3BC.9050802@klondike.es>
2016-09-27 20:32 ` [PATCH v3 2/2] initramfs: Allow again choice of the embedded initram compression algorithm klondike
2016-10-21 21:21 ` Andrew Morton
2016-10-21 21:29 ` Francisco Blas Izquierdo Riera (klondike)
2017-05-20 22:30 ` [v3, " Florian Fainelli
2017-05-21 2:48 ` Florian Fainelli
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