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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-11-21 09:17:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-11-21 09:17:33 -0800 |
| commit | 90a19b744de3a4fb51aee2edd8f2b9a4b14c9878 (patch) | |
| tree | 97dc6486202ac774a0904f4ce36d152a6674a45a /Documentation/ABI | |
| parent | fcc79e1714e8c2b8e216dc3149812edd37884eef (diff) | |
| parent | 0bc8061ffc733a0a246b8689b2d32a3e9204f43c (diff) | |
| download | linux-90a19b744de3a4fb51aee2edd8f2b9a4b14c9878.tar.gz linux-90a19b744de3a4fb51aee2edd8f2b9a4b14c9878.tar.bz2 linux-90a19b744de3a4fb51aee2edd8f2b9a4b14c9878.zip | |
Merge tag 'erofs-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"There is no outstanding feature for this cycle. The most useful
changes are SEEK_{DATA,HOLE} support and some decompression
micro-optimization. Other than those, there are some bugfixes and
cleanups as usual:
- Add SEEK_{DATA,HOLE} support
- Free redundant pclusters if no cached compressed data is valid
- Add sysfs entry to drop internal caches
- Several bugfixes & cleanups"
* tag 'erofs-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: handle NONHEAD !delta[1] lclusters gracefully
erofs: clarify direct I/O support
erofs: fix blksize < PAGE_SIZE for file-backed mounts
erofs: get rid of `buf->kmap_type`
erofs: fix file-backed mounts over FUSE
erofs: simplify definition of the log functions
erofs: add sysfs node to drop internal caches
erofs: free pclusters if no cached folio is attached
erofs: sunset `struct erofs_workgroup`
erofs: move erofs_workgroup operations into zdata.c
erofs: get rid of erofs_{find,insert}_workgroup
erofs: add SEEK_{DATA,HOLE} support
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-erofs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-erofs b/Documentation/ABI/testing/sysfs-fs-erofs index 284224d1b56f..b134146d735b 100644 --- a/Documentation/ABI/testing/sysfs-fs-erofs +++ b/Documentation/ABI/testing/sysfs-fs-erofs @@ -16,3 +16,14 @@ Description: Control strategy of sync decompression: readahead on atomic contexts only. - 1 (force on): enable for readpage and readahead. - 2 (force off): disable for all situations. + +What: /sys/fs/erofs/<disk>/drop_caches +Date: November 2024 +Contact: "Guo Chunhai" <guochunhai@vivo.com> +Description: Writing to this will drop compression-related caches, + currently used to drop in-memory pclusters and cached + compressed folios: + + - 1 : invalidate cached compressed folios + - 2 : drop in-memory pclusters + - 3 : drop in-memory pclusters and cached compressed folios |