From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes Skip the xarray reservation loop when clearing all memory attributes, as storing NULL only erases the entry and never needs to allocate, so no reservation (and no cleanup of a failed one) is required in that case. Suggested-by: Sean Christopherson Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- lib/.gitignore | 8 + lib/842/842.h | 130 + lib/842/842_compress.c | 632 + lib/842/842_debugfs.h | 50 + lib/842/842_decompress.c | 417 + lib/842/Makefile | 3 + lib/Kconfig | 632 + lib/Kconfig.debug | 3642 +++++ lib/Kconfig.kasan | 231 + lib/Kconfig.kcsan | 251 + lib/Kconfig.kfence | 99 + lib/Kconfig.kgdb | 166 + lib/Kconfig.kmsan | 54 + lib/Kconfig.ubsan | 179 + lib/Makefile | 352 + lib/alloc_tag.c | 1029 ++ lib/argv_split.c | 95 + lib/ashldi3.c | 32 + lib/ashrdi3.c | 34 + lib/asn1_decoder.c | 522 + lib/asn1_encoder.c | 453 + lib/assoc_array.c | 1724 ++ lib/atomic64.c | 207 + lib/atomic64_test.c | 277 + lib/audit.c | 89 + lib/base64.c | 185 + lib/bcd.c | 17 + lib/bch.c | 1402 ++ lib/bitmap-str.c | 477 + lib/bitmap.c | 901 ++ lib/bitrev.c | 44 + 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lib/zstd/compress/zstd_opt.h create mode 100644 lib/zstd/compress/zstd_preSplit.c create mode 100644 lib/zstd/compress/zstd_preSplit.h create mode 100644 lib/zstd/decompress/huf_decompress.c create mode 100644 lib/zstd/decompress/zstd_ddict.c create mode 100644 lib/zstd/decompress/zstd_ddict.h create mode 100644 lib/zstd/decompress/zstd_decompress.c create mode 100644 lib/zstd/decompress/zstd_decompress_block.c create mode 100644 lib/zstd/decompress/zstd_decompress_block.h create mode 100644 lib/zstd/decompress/zstd_decompress_internal.h create mode 100644 lib/zstd/decompress_sources.h create mode 100644 lib/zstd/zstd_common_module.c create mode 100644 lib/zstd/zstd_compress_module.c create mode 100644 lib/zstd/zstd_decompress_module.c (limited to 'lib') diff --git a/lib/.gitignore b/lib/.gitignore new file mode 100644 index 000000000..42aee3ddb --- /dev/null +++ b/lib/.gitignore @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0-only +/crc32table.h +/crc64table.h +/default.bconf +/gen_crc32table +/gen_crc64table +/oid_registry_data.c +/raid6 diff --git a/lib/842/842.h b/lib/842/842.h new file mode 100644 index 000000000..f9e8a5dd7 --- /dev/null +++ b/lib/842/842.h @@ -0,0 +1,130 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __842_H__ +#define __842_H__ + +/* The 842 compressed format is made up of multiple blocks, each of + * which have the format: + * + *