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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-12 20:14:04 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-12 20:14:04 -0800 |
| commit | 4a6bff1187409f2c2ba1b17234541d314f0680fc (patch) | |
| tree | 8dcc29cbfde92d6fdc04cb4ff2af7bb1a1dda9fc /include/linux | |
| parent | ad0d9da164cb52e62637e427517b2060dc956a2d (diff) | |
| parent | c505feba4c0d76084e56ec498ce819f02a7043ae (diff) | |
Merge tag 'erofs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"In this cycle, large folios are now enabled in the iomap/fscache mode
for uncompressed files first. In order to do that, we've also cleaned
up better interfaces between erofs and fscache, which are acked by
fscache/netfs folks and included in this pull request.
Other than that, there are random fixes around erofs over fscache and
crafted images by syzbot, minor cleanups and documentation updates.
Summary:
- Enable large folios for iomap/fscache mode
- Avoid sysfs warning due to mounting twice with the same fsid and
domain_id in fscache mode
- Refine fscache interface among erofs, fscache, and cachefiles
- Use kmap_local_page() only for metabuf
- Fixes around crafted images found by syzbot
- Minor cleanups and documentation updates"
* tag 'erofs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: validate the extent length for uncompressed pclusters
erofs: fix missing unmap if z_erofs_get_extent_compressedlen() fails
erofs: Fix pcluster memleak when its block address is zero
erofs: use kmap_local_page() only for erofs_bread()
erofs: enable large folios for fscache mode
erofs: support large folios for fscache mode
erofs: switch to prepare_ondemand_read() in fscache mode
fscache,cachefiles: add prepare_ondemand_read() callback
erofs: clean up cached I/O strategies
erofs: update documentation
erofs: check the uniqueness of fsid in shared domain in advance
erofs: enable large folios for iomap mode
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netfs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/netfs.h b/include/linux/netfs.h index f2402ddeafbf..4c76ddfb6a67 100644 --- a/include/linux/netfs.h +++ b/include/linux/netfs.h @@ -267,6 +267,14 @@ struct netfs_cache_ops { loff_t *_start, size_t *_len, loff_t i_size, bool no_space_allocated_yet); + /* Prepare an on-demand read operation, shortening it to a cached/uncached + * boundary as appropriate. + */ + enum netfs_io_source (*prepare_ondemand_read)(struct netfs_cache_resources *cres, + loff_t start, size_t *_len, + loff_t i_size, + unsigned long *_flags, ino_t ino); + /* Query the occupancy of the cache in a region, returning where the * next chunk of data starts and how long it is. */ |