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[Bug 458525] kernel: use compressed modules
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Fri, 29 May 2009 10:11:59 -0600 (MDT)
  • Message-id: <20090529161159.9D40724550E@xxxxxxxxxxxxxxxxxxxxxx>

User mmarek@xxxxxxxxxx added comment

Michal Marek <mmarek@xxxxxxxxxx> changed:

What |Removed |Added
CC| |mvancura@xxxxxxxxxx

--- Comment #14 from Michal Marek <mmarek@xxxxxxxxxx> 2009-05-29 10:11:58 MDT
(In reply to comment #9)
But people do use squashfs and so on :-)

But in case of squashfs the kernel can cache the decompressed data, it doesn't
have to be decompressed again and again. Also I guess if depmod reads only
small parts of a *.ko, squashfs will not decompress the whole file.

Your concerns are valid, though.
Nevertheless, since users might want to gzip their modules manually, at least
weak-modules2 and mkinitrd needs to be patched (and upstream is you).

Thanks for the patches! Adding Milan for mkinitrd. BTW if you want to build
kmps with *.ko.gz, then you also need to fix /usr/lib/rpm/find-*.ksyms.
Actually I'll fix find-provides.ksyms myself to be able to extract provides
from compressed vmlinux.gz/vmlinuz.

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