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authorIngo Molnar <mingo@elte.hu>2009-03-26 16:39:17 -0400
committerIngo Molnar <mingo@elte.hu>2009-03-27 12:28:43 -0400
commit6e15cf04860074ad032e88c306bea656bbdd0f22 (patch)
treec346383bb7563e8d66b2f4a502f875b259c34870 /include/linux/decompress/generic.h
parentbe0ea69674ed95e1e98cb3687a241badc756d228 (diff)
parent60db56422043aaa455ac7f858ce23c273220f9d9 (diff)
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.h33
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 @@
1#ifndef DECOMPRESS_GENERIC_H
2#define DECOMPRESS_GENERIC_H
3
4/* Minimal chunksize to be read.
5 *Bzip2 prefers at least 4096
6 *Lzma prefers 0x10000 */
7#define COMPR_IOBUF_SIZE 4096
8
9typedef int (*decompress_fn) (unsigned char *inbuf, int len,
10 int(*fill)(void*, unsigned int),
11 int(*writebb)(void*, unsigned int),
12 unsigned char *output,
13 int *posp,
14 void(*error)(char *x));
15
16/* inbuf - input buffer
17 *len - len of pre-read data in inbuf
18 *fill - function to fill inbuf if empty
19 *writebb - function to write out outbug
20 *posp - if non-null, input position (number of bytes read) will be
21 * returned here
22 *
23 *If len != 0, the inbuf is initialized (with as much data), and fill
24 *should not be called
25 *If len = 0, the inbuf is allocated, but empty. Its size is IOBUF_SIZE
26 *fill should be called (repeatedly...) to read data, at most IOBUF_SIZE
27 */
28
29/* Utility routine to detect the decompression method */
30decompress_fn decompress_method(const unsigned char *inbuf, int len,
31 const char **name);
32
33#endif