diff options
| author | Gao Xiang <xiang@kernel.org> | 2026-08-12 15:15:27 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-08-12 16:24:26 +0200 |
| commit | 949eb95d5bcc530e6ce74cc95897c1849c53ea89 (patch) | |
| tree | 3faf5fa1ff9f87a25c39c372f13bb703b0759365 /include/linux | |
| parent | db2ddb87143519e20a95aa36c60b36107b736a58 (diff) | |
cachefiles,netfs: sunset ondemand mode
It was an effort to enhance fscache as a kernel cache for lazy
pulling (at least according to previous Incremental FS discussion [1])
and EROFS over fscache was the in-tree user of this mode.
fscache has since evolved to be netfslib-oriented, serving network
filesystem inodes via the netfs library, but EROFS never acts as a
network filesystem and we need to cache golden filesystem images rather
than individual EROFS inodes.
Since EROFS over fscache is now removed, clean up netfs/fscache/
cachefiles upstream too.
[1] https://lore.kernel.org/r/CAOQ4uxi4dzxArY24YO=+kBCK2gGoq3Ptb8WkzCqSogPgU_R3dQ@mail.gmail.com
[dh] Fixed up comments on:
https://sashiko.dev/#/patchset/20260716103030.3065561-1-dhowells%40redhat.com
https://sashiko.dev/#/patchset/20260722130218.78958-1-dhowells%40redhat.com
Signed-off-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/1046393.1786544127@warthog.procyon.org.uk
cc: Paulo Alcantara <pc@manguebit.org>
cc: netfs@lists.linux.dev
cc: linux-erofs@lists.ozlabs.org
cc: bpf@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netfs.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/include/linux/netfs.h b/include/linux/netfs.h index d0b62d53eea9..f837a501008c 100644 --- a/include/linux/netfs.h +++ b/include/linux/netfs.h @@ -191,7 +191,6 @@ struct netfs_io_subrequest { #define NETFS_SREQ_COPY_TO_CACHE 0 /* Set if should copy the data to the cache */ #define NETFS_SREQ_CLEAR_TAIL 1 /* Set if the rest of the read should be cleared */ #define NETFS_SREQ_MADE_PROGRESS 4 /* Set if we transferred at least some data */ -#define NETFS_SREQ_ONDEMAND 5 /* Set if it's from on-demand read mode */ #define NETFS_SREQ_BOUNDARY 6 /* Set if ends on hard boundary (eg. ceph object) */ #define NETFS_SREQ_HIT_EOF 7 /* Set if short due to EOF */ #define NETFS_SREQ_IN_PROGRESS 8 /* Unlocked when the subrequest completes */ @@ -374,14 +373,6 @@ struct netfs_cache_ops { loff_t *_start, size_t *_len, size_t upper_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. */ |