Messages in this thread | | | Date | Sun, 27 Apr 2003 11:04:18 +0200 | From | Jörn Engel <> | Subject | Re: Re: Swap Compression |
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On Sat, 26 April 2003 22:24:04 -0400, rmoser wrote: > > So what's the best way to do this? I was originally thinking like this: > > Grab some swap data > Stuff it into fcomp_push() > When you have 100k of data, seal it up > Write that 100k block
I would like something like this:
/* fox_compress * @input: Pointer to uncompressed data * @output: Pointer to buffer * @inlen: Size of uncompressed data * @outlen: Size of the buffer * * Return: * 0 on successful compression * -Esomething on error * * Side effects: * Output buffer is filled with random data after an error * condition or the compressed input data on success. * outlen remains unchanged on error and holds the compressed * data size on success * * If the output buffer is too small, this is an error. */ int fox_compress(unsigned char *input, unsigned char *output, uint32_t inlen, uint32_t *outlen);
/* fox_decompress * see above, basically */ int fox_decompress(unsigned char *input, unsigned char *output, uint32_t inlen, uint32_t *outlen);
Then the mm code can pick any useful size for compression.
Jörn
-- My second remark is that our intellectual powers are rather geared to master static relations and that our powers to visualize processes evolving in time are relatively poorly developed. -- Edsger W. Dijkstra - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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