Hi Linus,
Could you consider this pull request for 6.16-rc1?
In this cycle, Intel QAT hardware accelerators are supported to improve
DEFLATE decompression performance. I've also tested it with the enwik9
dataset of 1 MiB pclusters on our Intel Sapphire Rapids bare-metal
server and a PL0 ESSD, and the sequential read performance even
surpasses LZ4 software decompression on this setup.
In addition, a `fsoffset` mount option is introduced for file-backed
mounts to specify the filesystem offset in order to adapt customized
container formats.
There are other improvements and minor cleanups shown as below. All
commits have been in -next, and no potential merge conflicts are
observed.
Thanks,
Gao Xiang
The following changes since commit 82f2b0b97b36ee3fcddf0f0780a9a0825d52fec3:
Linux 6.15-rc6 (2025-05-11 14:54:11 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
tags/erofs-for-6.16-rc1
for you to fetch changes up to b4a29efc51461edf1a02e9da656d4480cabd24b0:
erofs: support DEFLATE decompression by using Intel QAT (2025-05-25 15:27:40
+0800)
----------------------------------------------------------------
Changes since last update:
- Add a `fsoffset` mount option to specify the filesystem offset;
- Support Intel QAT accelerators to boost up the DEFLATE algorithm;
- Initialize per-CPU workers and CPU hotplug hooks lazily to avoid
unnecessary overhead when EROFS is not mounted;
- Fix file handle encoding for 64-bit NIDs;
- Minor cleanups.
----------------------------------------------------------------
Bo Liu (1):
erofs: support DEFLATE decompression by using Intel QAT
Gao Xiang (2):
erofs: refine readahead tracepoint
erofs: clean up erofs_{init,exit}_sysfs()
Hongbo Li (1):
erofs: fix file handle encoding for 64-bit NIDs
Sandeep Dhavale (1):
erofs: lazily initialize per-CPU workers and CPU hotplug hooks
Sheng Yong (2):
erofs: avoid using multiple devices with different type
erofs: add 'fsoffset' mount option to specify filesystem offset
Documentation/ABI/testing/sysfs-fs-erofs | 8 ++
Documentation/filesystems/erofs.rst | 1 +
fs/erofs/Kconfig | 14 +++
fs/erofs/Makefile | 1 +
fs/erofs/compress.h | 10 ++
fs/erofs/data.c | 5 +-
fs/erofs/decompressor_crypto.c | 181 +++++++++++++++++++++++++++++++
fs/erofs/decompressor_deflate.c | 20 +++-
fs/erofs/fileio.c | 5 +-
fs/erofs/internal.h | 3 +-
fs/erofs/super.c | 65 +++++++++--
fs/erofs/sysfs.c | 67 ++++++++----
fs/erofs/zdata.c | 79 ++++++++++----
include/trace/events/erofs.h | 2 +-
14 files changed, 397 insertions(+), 64 deletions(-)
create mode 100644 fs/erofs/decompressor_crypto.c
