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95 Commits

Author SHA1 Message Date
Ming-Hung Tsai
3fda9cc1f8 [thin_restore (rust)] Do not iterate mapping tree leaves twice 2021-06-16 01:39:31 +08:00
Ming-Hung Tsai
de7e79fc06 [btree_builder] Rename Builder to BTreeBuilder for clarity 2021-06-16 01:39:31 +08:00
Ming-Hung Tsai
6d16c5816e [btree_builder] Fix reference counts of btree nodes 
A leaf node should be counted only if it is referenced by some internal
nodes, since the leaves generated by <def> sections might be unshifted
and merged with exclusive mappings or other shared defs, or they might
not even be used by any of the devices if the xml was tampered. The
internal nodes should be handled in the same manner.

The new 'reserve' operation is designed for this purpose. Applications
could reserve a block for later use, without setting its ref count
immediately. This way saves the hassles of tracking unused leaves.
 2021-06-16 01:39:31 +08:00
Ming-Hung Tsai
3a653eaa5f [thin_restore (rust)] Build metadata and data space maps 2021-05-28 03:19:42 +08:00
Ming-Hung Tsai
48d4fc51ed [space_map (rust)] Factor out space_map_metadata 2021-05-28 03:19:42 +08:00
Ming-Hung Tsai
d5e6a69af6 [thin (rust)] Fix the unit of metadata_block_size in superblock 2021-05-28 03:19:42 +08:00
Ming-Hung Tsai
511ae9e908 [checksum] Support cache and era superblock 2021-05-28 03:19:42 +08:00
Ming-Hung Tsai
159dda9659 [thin_restore (rust)] Tidy up with the builder pattern 2021-05-28 03:19:42 +08:00
Ming-Hung Tsai
86e2db3a1a [cache (rust)] Add visitor traits for cache_restore 2021-05-28 03:19:42 +08:00
Ming-Hung Tsai
2a9e7cf74f [thin_dump (rust)] Split runs at the position with multiple references 
That is, an element with multiple references will serve as the beginning
of an atomic run.
 2021-05-28 00:18:27 +08:00
Ming-Hung Tsai
30cfcd9a88 [thin_dump (rust)] Use common leaf sequences to pack metadata 2021-05-28 00:07:32 +08:00
Ming-Hung Tsai
4c47fcabbf [thin_dump (rust)] Fix missing outputs 2021-05-27 23:51:37 +08:00
Ming-Hung Tsai
965fbb6e8f [all] Apply cargo fmt, and fix clippy warnings 2021-05-11 23:53:31 +08:00
Ming-Hung Tsai
5baeab4a5c Merge branch 'main' into rust-cache-tools 2021-05-11 23:16:08 +08:00
Joe Thornber
d9a96758b0
Merge pull request #168 from mingnus/2020-10-09-thin-restore-rewrite 
Merge recent changes in thin_restore
 2021-05-04 09:21:40 +01:00
Ming-Hung Tsai
43e433149b [all] Apply cargo fmt 2021-05-04 16:10:23 +08:00
Ming-Hung Tsai
4b4584c830 [thin_restore (rust)] Apply several fixes 
- Fix reading queued blocks
- Fix unnecessary block shadowing when there's no remaining values
- Prevent superblock from overwritten
- Flush queued writes before updating superblock
 2021-05-03 00:07:34 +08:00
Ming-Hung Tsai
636d50a38d [thin_check (rust)] Pull out space map checking routines 2021-04-23 16:04:56 +08:00
Joe Thornber
c41b2e8ec3 Some interface changes to let dm-unit use the thin checking code more easily. 2021-04-08 10:45:50 +01:00
Joe Thornber
040e3bfc2d Lot's of work on thin_restore 2021-03-24 14:20:20 +00:00
Joe Thornber
12c1c6e1f5 Merge branch 'main' into 2020-10-09-thin-restore-rewrite 2021-03-23 11:22:03 +00:00
Joe Thornber
c3c6d37aea Fix a lot of clippy warnings 2021-02-08 10:38:21 +00:00
Joe Thornber
04e0eb3a66 [thin_restore (rust)] rewrite the btree_builder 
Now copes with adding shared leaves.
 2020-12-09 13:22:32 +00:00
Joe Thornber
0e4622f337 [Rust tools] squash lots of warnings 2020-12-01 11:50:32 +00:00
Joe Thornber
1ae62adec6 work in progress 2020-11-18 14:33:56 +00:00
Joe Thornber
37ea0280df [thin_restore] first pass at btree_builder. 
No tests yet
 2020-10-26 12:05:27 +00:00
Joe Thornber
f60ae770c2 [thin_explore] Explore devices tree, including path support. 2020-10-15 11:53:09 +01:00
Joe Thornber
e9fbcc31de [thin_dump (rust)] First pass at thin_dump. 
Doesn't include --repair.

This includes <def> and <ref> sections for shared regions.
 2020-09-28 15:45:13 +01:00
Joe Thornber
a88ae3ca18 [thin_check (rust)] factor out device detail 2020-09-25 09:59:16 +01:00
Joe Thornber
66b6a1ba48 [thin_check (rust)] --superblock-only, --skip-mappings, INFO fields 2020-09-24 13:55:58 +01:00
Joe Thornber
34052c540c [thin_check (rust)] Reinstate walk_node_threaded 2020-09-24 09:40:38 +01:00
Joe Thornber
819fc6d54c [thin_explore] accept a node path on the command line 
Helpful to examine thin_check failures.
 2020-09-22 10:47:04 +01:00
Joe Thornber
b193d19603 [thin_check (rust)] output complete node paths with errors. 
This can be used with thin_explore
 2020-09-18 11:16:09 +01:00
Joe Thornber
bc058f8baf [thin_check (rust)] BTree values must now implement Copy 2020-09-18 10:06:33 +01:00
Joe Thornber
bcfb9a73a1 [thin_explore] display ranges where possible 2020-09-18 09:12:51 +01:00
Joe Thornber
8493cf7081 [thin_explore] First code drop 2020-09-16 15:10:01 +01:00
Joe Thornber
44142f657a [thin_check (rust)] Add error handling to io_engine interface 2020-09-02 12:57:47 +01:00
Joe Thornber
cda92de441 [thin_check (rust)] Add a threaded version of btree walk. 
Bottom level mappings use this if there are few devices.  Performance
is a bit slower for io_uring, and much slower for sync io (which I think
is due to io scheduling which I can't do much about).
 2020-08-21 10:10:49 +01:00
Joe Thornber
c9a759b4e8 [thin_check (rust)] Use vec::with_capacity() to avoid reallocations. 2020-08-21 09:00:21 +01:00
Joe Thornber
2cc2dffab5 [thin_check (rust)] Make NodeVisitor::visit non mut. 
Preparation for making btree_walk multithreaded
 2020-08-20 11:05:14 +01:00
Joe Thornber
a1c206b774 [thin_check (rust)] NodeVisitor only needs to see leaf nodes 2020-08-20 10:55:38 +01:00
Joe Thornber
936e06e132 [thin_check (rust)] Remove some unused params from NodeVisitor::visit 2020-08-20 10:46:06 +01:00
Joe Thornber
1999343d2f [thin_check (rust)] squash a couple of warnings 2020-08-20 10:33:02 +01:00
Joe Thornber
7834d661e2 [thin_check (rust)] auto repair space map leaks 2020-08-19 14:31:01 +01:00
Joe Thornber
67a54b4ebc [thin_check (rust)] add --auto-repair switch 2020-08-18 11:47:42 +01:00
Joe Thornber
8eec84fbec [thin_check (rust)] introduce ASpaceMap type alias 2020-08-18 11:06:15 +01:00
Joe Thornber
04f3ba5a33 [thin_check (rust)] Pass ctx to check_space_map 2020-08-18 10:59:04 +01:00
Joe Thornber
4beb2db337 [thin_check (rust)] Factor out check_mapping_bottom_level 2020-08-18 10:53:11 +01:00
Joe Thornber
239ae6b6ec [thin_check (rust)] factor out spawn_progress_thread 2020-08-18 09:48:51 +01:00
Joe Thornber
e8d7e5cf1e [thin_check (rust)] move report creation to top level 2020-08-17 16:05:06 +01:00