lkml.org 
[lkml]   [2017]   [Aug]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v4 0/5] Add xxhash and zstd modules
Date
Hi all,

This patch set adds xxhash, zstd compression, and zstd decompression
modules. It also adds zstd support to BtrFS and SquashFS.

Each patch has relevant summaries, benchmarks, and tests.

Best,
Nick Terrell

Changelog:

v1 -> v2:
- Make pointer in lib/xxhash.c:394 non-const (1/5)
- Use div_u64() for division of u64s (2/5)
- Reduce stack usage of ZSTD_compressSequences(), ZSTD_buildSeqTable(),
ZSTD_decompressSequencesLong(), FSE_buildDTable(), FSE_decompress_wksp(),
HUF_writeCTable(), HUF_readStats(), HUF_readCTable(),
HUF_compressWeights(), HUF_readDTableX2(), and HUF_readDTableX4() (2/5)
- No zstd function uses more than 400 B of stack space (2/5)

v2 -> v3:
- Work around gcc-7 bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81388
(2/5)
- Fix bug in dictionary compression from upstream commit cc1522351f (2/5)
- Port upstream BtrFS commits e1ddce71d6, 389a6cfc2a, and 6acafd1eff (3/5)
- Change default compression level for BtrFS to 3 (3/5)

v3 -> v4:
- Fix compiler warnings (2/5)
- Add missing includes (3/5)
- Fix minor linter warnings (3/5, 4/5)
- Add crypto patch (5/5)

Nick Terrell (5):
lib: Add xxhash module
lib: Add zstd modules
btrfs: Add zstd support
squashfs: Add zstd support
crypto: Add zstd support

crypto/Kconfig | 9 +
crypto/Makefile | 1 +
crypto/testmgr.c | 10 +
crypto/testmgr.h | 71 +
crypto/zstd.c | 265 ++++
fs/btrfs/Kconfig | 2 +
fs/btrfs/Makefile | 2 +-
fs/btrfs/compression.c | 1 +
fs/btrfs/compression.h | 6 +-
fs/btrfs/ctree.h | 1 +
fs/btrfs/disk-io.c | 2 +
fs/btrfs/ioctl.c | 6 +-
fs/btrfs/props.c | 6 +
fs/btrfs/super.c | 12 +-
fs/btrfs/sysfs.c | 2 +
fs/btrfs/zstd.c | 432 ++++++
fs/squashfs/Kconfig | 14 +
fs/squashfs/Makefile | 1 +
fs/squashfs/decompressor.c | 7 +
fs/squashfs/decompressor.h | 4 +
fs/squashfs/squashfs_fs.h | 1 +
fs/squashfs/zstd_wrapper.c | 149 ++
include/linux/xxhash.h | 236 +++
include/linux/zstd.h | 1157 +++++++++++++++
include/uapi/linux/btrfs.h | 8 +-
lib/Kconfig | 11 +
lib/Makefile | 3 +
lib/xxhash.c | 500 +++++++
lib/zstd/Makefile | 18 +
lib/zstd/bitstream.h | 374 +++++
lib/zstd/compress.c | 3479 ++++++++++++++++++++++++++++++++++++++++++++
lib/zstd/decompress.c | 2528 ++++++++++++++++++++++++++++++++
lib/zstd/entropy_common.c | 243 ++++
lib/zstd/error_private.h | 53 +
lib/zstd/fse.h | 575 ++++++++
lib/zstd/fse_compress.c | 795 ++++++++++
lib/zstd/fse_decompress.c | 332 +++++
lib/zstd/huf.h | 212 +++
lib/zstd/huf_compress.c | 770 ++++++++++
lib/zstd/huf_decompress.c | 960 ++++++++++++
lib/zstd/mem.h | 151 ++
lib/zstd/zstd_common.c | 75 +
lib/zstd/zstd_internal.h | 250 ++++
lib/zstd/zstd_opt.h | 1014 +++++++++++++
44 files changed, 14736 insertions(+), 12 deletions(-)
create mode 100644 crypto/zstd.c
create mode 100644 fs/btrfs/zstd.c
create mode 100644 fs/squashfs/zstd_wrapper.c
create mode 100644 include/linux/xxhash.h
create mode 100644 include/linux/zstd.h
create mode 100644 lib/xxhash.c
create mode 100644 lib/zstd/Makefile
create mode 100644 lib/zstd/bitstream.h
create mode 100644 lib/zstd/compress.c
create mode 100644 lib/zstd/decompress.c
create mode 100644 lib/zstd/entropy_common.c
create mode 100644 lib/zstd/error_private.h
create mode 100644 lib/zstd/fse.h
create mode 100644 lib/zstd/fse_compress.c
create mode 100644 lib/zstd/fse_decompress.c
create mode 100644 lib/zstd/huf.h
create mode 100644 lib/zstd/huf_compress.c
create mode 100644 lib/zstd/huf_decompress.c
create mode 100644 lib/zstd/mem.h
create mode 100644 lib/zstd/zstd_common.c
create mode 100644 lib/zstd/zstd_internal.h
create mode 100644 lib/zstd/zstd_opt.h

--
2.9.3

\
 
 \ /
  Last update: 2017-08-04 22:22    [W:0.099 / U:1.164 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site