diff options
| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2025-05-26 12:47:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-05-26 12:47:41 -0700 |
| commit | 79b98edf918e8146047e08817e2a42937428be02 (patch) | |
| tree | 0337b83aadeee7055db54791d7e831b0886c8699 /Documentation | |
| parent | Merge tag 'bcachefs-2025-05-24' of git://evilpiepirate.org/bcachefs (diff) | |
| parent | erofs: support DEFLATE decompression by using Intel QAT (diff) | |
| download | wireguard-linux-79b98edf918e8146047e08817e2a42937428be02.tar.xz wireguard-linux-79b98edf918e8146047e08817e2a42937428be02.zip | |
Merge tag 'erofs-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"In this cycle, Intel QAT hardware accelerators are supported to
improve DEFLATE decompression performance. I've 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.
And other improvements and minor cleanups. Summary:
- 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"
* tag 'erofs-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: support DEFLATE decompression by using Intel QAT
erofs: clean up erofs_{init,exit}_sysfs()
erofs: add 'fsoffset' mount option to specify filesystem offset
erofs: lazily initialize per-CPU workers and CPU hotplug hooks
erofs: refine readahead tracepoint
erofs: avoid using multiple devices with different type
erofs: fix file handle encoding for 64-bit NIDs
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-erofs | 8 | ||||
| -rw-r--r-- | Documentation/filesystems/erofs.rst | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-erofs b/Documentation/ABI/testing/sysfs-fs-erofs index b134146d735b..bf3b6299c15e 100644 --- a/Documentation/ABI/testing/sysfs-fs-erofs +++ b/Documentation/ABI/testing/sysfs-fs-erofs @@ -27,3 +27,11 @@ Description: Writing to this will drop compression-related caches, - 1 : invalidate cached compressed folios - 2 : drop in-memory pclusters - 3 : drop in-memory pclusters and cached compressed folios + +What: /sys/fs/erofs/accel +Date: May 2025 +Contact: "Bo Liu" <liubo03@inspur.com> +Description: Used to set or show hardware accelerators in effect + and multiple accelerators are separated by '\n'. + Supported accelerator(s): qat_deflate. + Disable all accelerators with an empty string (echo > accel). diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst index c293f8e37468..7ddb235aee9d 100644 --- a/Documentation/filesystems/erofs.rst +++ b/Documentation/filesystems/erofs.rst @@ -128,6 +128,7 @@ device=%s Specify a path to an extra device to be used together. fsid=%s Specify a filesystem image ID for Fscache back-end. domain_id=%s Specify a domain ID in fscache mode so that different images with the same blobs under a given domain ID can share storage. +fsoffset=%llu Specify block-aligned filesystem offset for the primary device. =================== ========================================================= Sysfs Entries |