[lc-devel] [PATCH] 2.4.18-0.23pre5

[Rodrigo S. de C. <rc...@im...>]

This patch features the support for LZO compression algorithm added
back.

There's also a new /proc entry showing what's going on inside the
compressed cache. This entry (comp_cache_hist) displays the free space
histogram for all compressed cache pages, besides how many fragments
are stored in these pages. Very useful data.

Some bugs were fixed. In particular, a bug that was hit under UML
which could cause FS corruption and a bug in swap buffers management
that could hang the machine. About User Mode Linux, its author, Jeff
Dike, fixed a bug that I reported concerning swap addresses, so now we
can use compressed cache under UML (use version 2.4.18-30um or later).

This patch also features our kernel parameter (compsize=) which
accepts input in the format "mem=" does (for example, you can append
"compsize=16M"). Note, however, that /proc/sys/vm/comp_cache/size is
still a number of memory pages.

More details:
http://sourceforge.net/project/shownotes.php?release_id=48824

Download:
http://prdownloads.sourceforge.net/linuxcompressed/patch-comp-cache-2.4.18-0.23pre5.bz2?download
- direct link
http://west.dl.sourceforge.net/sourceforge/linuxcompressed/patch-comp-cache-2.4.18-0.23pre5.bz2

-- 
Rodrigo S. de Castro <rc...@im...>