user/sven/linux.git/include/linux/zconf.h, branch v3.2.78

[PATCH] zlib_inflate: Upgrade library code to a recent version

2006-06-22T22:05:58Z

Upgrade the zlib_inflate implementation in the kernel from a patched version 1.1.3/4 to a patched 1.2.3. The code in the kernel is about seven years old and I noticed that the external zlib library's inflate performance was significantly faster (~50%) than the code in the kernel on ARM (and faster again on x86_32). For comparison the newer deflate code is 20% slower on ARM and 50% slower on x86_32 but gives an approx 1% compression ratio improvement. I don't consider this to be an improvement for kernel use so have no plans to change the zlib_deflate code. Various changes have been made to the zlib code in the kernel, the most significant being the extra functions/flush option used by ppp_deflate. This update reimplements the features PPP needs to ensure it continues to work. This code has been tested on ARM under both JFFS2 (with zlib compression enabled) and ppp_deflate and on x86_32. JFFS2 sees an approx. 10% real world file read speed improvement. This patch also removes ZLIB_VERSION as it no longer has a correct value. We don't need version checks anyway as the kernel's module handling will take care of that for us. This removal is also more in keeping with the zlib author's wishes (http://www.zlib.net/zlib_faq.html#faq24) and I've added something to the zlib.h header to note its a modified version. Signed-off-by: Richard Purdie Acked-by: Joern Engel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] zlib changes: memlevel

2003-06-08T11:11:10Z

Reduce MAX_MEM_LEVEL to 8. This reduces zlib memory consumption by 128k (from ~400k to ~270k) at the theoretical cost of worse compression. No code currently in the kernel actually uses the better compression, so the practical cost is zero.

[PATCH] zlib cleanup: OF

2003-06-05T09:13:43Z

Remove the stale support for K&R function declarations through the OF() macro. This is the last patch to clean up zconf.h, at least for now.

[PATCH] zlib cleanup: z_off_t

2003-06-05T09:13:36Z

This nice macro must have been one of the good intentions on the road to hell. Completely unused. :)

[PATCH] zlib cleanup: ZEXPORT

2003-06-05T09:13:30Z

Just a simple s/ZEXPORT//.

[PATCH] zlib cleanup: ZEXTERN

2003-06-05T09:11:39Z

This one was just simple s/ZEXTERN/extern/g.

[PATCH] zlib cleanup: 32BIT and STDC

2003-06-05T09:02:37Z

Remove unused __32BIT__ and STDC macros

[PATCH] zlib cleanup: remove FAR macro

2003-06-05T09:02:29Z

This removes FAR, the typedefs using FAR (Bytef and friends) and the function prototypes for zalloc and zfree that should have gone earlier already.

Fix up tree oddities that Al pointed out.

2002-02-06T15:17:34Z