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author | Ingo Molnar <mingo@elte.hu> | 2009-03-26 23:39:17 +0300 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-03-27 19:28:43 +0300 |
commit | 6e15cf04860074ad032e88c306bea656bbdd0f22 (patch) | |
tree | c346383bb7563e8d66b2f4a502f875b259c34870 /include/linux/decompress/generic.h | |
parent | be0ea69674ed95e1e98cb3687a241badc756d228 (diff) | |
parent | 60db56422043aaa455ac7f858ce23c273220f9d9 (diff) | |
download | linux-6e15cf04860074ad032e88c306bea656bbdd0f22.tar.xz |
Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2
Conflicts:
arch/parisc/kernel/irq.c
arch/x86/include/asm/fixmap_64.h
arch/x86/include/asm/setup.h
kernel/irq/handle.c
Semantic merge:
arch/x86/include/asm/fixmap.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/decompress/generic.h')
-rw-r--r-- | include/linux/decompress/generic.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/decompress/generic.h b/include/linux/decompress/generic.h new file mode 100644 index 000000000000..6dfb856327bb --- /dev/null +++ b/include/linux/decompress/generic.h @@ -0,0 +1,33 @@ +#ifndef DECOMPRESS_GENERIC_H +#define DECOMPRESS_GENERIC_H + +/* Minimal chunksize to be read. + *Bzip2 prefers at least 4096 + *Lzma prefers 0x10000 */ +#define COMPR_IOBUF_SIZE 4096 + +typedef int (*decompress_fn) (unsigned char *inbuf, int len, + int(*fill)(void*, unsigned int), + int(*writebb)(void*, unsigned int), + unsigned char *output, + int *posp, + void(*error)(char *x)); + +/* inbuf - input buffer + *len - len of pre-read data in inbuf + *fill - function to fill inbuf if empty + *writebb - function to write out outbug + *posp - if non-null, input position (number of bytes read) will be + * returned here + * + *If len != 0, the inbuf is initialized (with as much data), and fill + *should not be called + *If len = 0, the inbuf is allocated, but empty. Its size is IOBUF_SIZE + *fill should be called (repeatedly...) to read data, at most IOBUF_SIZE + */ + +/* Utility routine to detect the decompression method */ +decompress_fn decompress_method(const unsigned char *inbuf, int len, + const char **name); + +#endif |