Pull x86 boot updates from Ingo Molnar: "The main change in this cycle was to add support for ZSTD-compressed kernel and initrd images. ZSTD has a very fast decompressor, yet it compresses better than gzip" * tag 'x86-boot-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation: dontdiff: Add zstd compressed files .gitignore: Add ZSTD-compressed files x86: Add support for ZSTD compressed kernel x86: Bump ZO_z_extra_bytes margin for zstd usr: Add support for zstd compressed initramfs init: Add support for zstd compressed kernel lib: Add zstd support to decompress lib: Prepare zstd for preboot environment, improve performance
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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ | ||
| 2 | #ifndef LINUX_DECOMPRESS_UNZSTD_H | ||
| 3 | #define LINUX_DECOMPRESS_UNZSTD_H | ||
| 4 | |||
| 5 | int unzstd(unsigned char *inbuf, long len, | ||
| 6 | long (*fill)(void*, unsigned long), | ||
| 7 | long (*flush)(void*, unsigned long), | ||
| 8 | unsigned char *output, | ||
| 9 | long *pos, | ||
| 10 | void (*error_fn)(char *x)); | ||
| 11 | #endif | ||