Release 4.7 drivers/block/zram/zcomp_lz4.c
/*
* Copyright (C) 2014 Sergey Senozhatsky.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/lz4.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include "zcomp_lz4.h"
static void *zcomp_lz4_create(gfp_t flags)
{
void *ret;
ret = kmalloc(LZ4_MEM_COMPRESS, flags);
if (!ret)
ret = __vmalloc(LZ4_MEM_COMPRESS,
flags | __GFP_HIGHMEM,
PAGE_KERNEL);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| kyeongdon kim | kyeongdon kim | 26 | 59.09% | 1 | 25.00% |
| sergey senozhatsky | sergey senozhatsky | 14 | 31.82% | 2 | 50.00% |
| minchan kim | minchan kim | 4 | 9.09% | 1 | 25.00% |
| Total | 44 | 100.00% | 4 | 100.00% |
static void zcomp_lz4_destroy(void *private)
{
kvfree(private);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sergey senozhatsky | sergey senozhatsky | 14 | 93.33% | 1 | 50.00% |
| kyeongdon kim | kyeongdon kim | 1 | 6.67% | 1 | 50.00% |
| Total | 15 | 100.00% | 2 | 100.00% |
static int zcomp_lz4_compress(const unsigned char *src, unsigned char *dst,
size_t *dst_len, void *private)
{
/* return : Success if return 0 */
return lz4_compress(src, PAGE_SIZE, dst, dst_len, private);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sergey senozhatsky | sergey senozhatsky | 40 | 100.00% | 1 | 100.00% |
| Total | 40 | 100.00% | 1 | 100.00% |
static int zcomp_lz4_decompress(const unsigned char *src, size_t src_len,
unsigned char *dst)
{
size_t dst_len = PAGE_SIZE;
/* return : Success if return 0 */
return lz4_decompress_unknownoutputsize(src, src_len, dst, &dst_len);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sergey senozhatsky | sergey senozhatsky | 39 | 100.00% | 1 | 100.00% |
| Total | 39 | 100.00% | 1 | 100.00% |
struct zcomp_backend zcomp_lz4 = {
.compress = zcomp_lz4_compress,
.decompress = zcomp_lz4_decompress,
.create = zcomp_lz4_create,
.destroy = zcomp_lz4_destroy,
.name = "lz4",
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sergey senozhatsky | sergey senozhatsky | 151 | 80.32% | 2 | 50.00% |
| kyeongdon kim | kyeongdon kim | 33 | 17.55% | 1 | 25.00% |
| minchan kim | minchan kim | 4 | 2.13% | 1 | 25.00% |
| Total | 188 | 100.00% | 4 | 100.00% |
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