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260 Commits

Author SHA1 Message Date
Ming-Hung Tsai
86139cf6bd [sm_recursive] Fix atomicity when applying BOPs 
Any BOP should be taken only once. Therefore, we should remove BOPs
that are being processed or had been processed from the uncommitted
list.
 2020-05-28 17:30:15 +08:00
Joe Thornber
4cdffafe88 [sm_recursive] Fix bug that allowed the same block to be allocated twice. 
See issue 70.  Soln from mingnus.
 2020-05-28 17:30:15 +08:00
Joe Thornber
128ecc27f2 [space-maps] remove count_possibly_greater_than_one 
This is only ever called with a recursive space map wrapper,
and that causes too many false positives.  False positives trigger
a copy of a metadata page, so this is a false economy.
 2020-05-28 07:38:58 +01:00
Joe Thornber
29cfdd8979 [space-maps/core] rewrite the core space map to use less memory. 2020-05-27 12:00:40 +01:00
Joe Thornber
371d1bbd6e [space-maps/recursive] fix bug in flush_ops() 
Decrements weren't being passed down properly.
 2020-05-26 09:24:15 +01:00
Joe Thornber
50f8e792d3 [space-map] Make the version of inc/dec that take a count the only one. 2020-05-26 09:12:45 +01:00
Joe Thornber
cc806a0daa [space-maps/disk] add implementation for the variant of inc/dec that take a count 2020-05-26 08:57:13 +01:00
Joe Thornber
12b6157c5b [space-maps/recursive] lift a lock, and add a lock 2020-05-26 08:45:35 +01:00
Joe Thornber
0e54de95e1 [space-maps/recursive] Remove some code duplication. 2020-05-26 08:38:05 +01:00
Joe Thornber
65fcda062f [space-maps/recursive] Aggregate the BOPs 2020-05-26 08:30:52 +01:00
Joe Thornber
2ed089a83f [space-map] Add new virtual methods to inc or dec by a specific amount. 
Provide default implementation that just loops
 2020-05-26 08:29:52 +01:00
Joe Thornber
5e6eec1bb0 [recursive space map] switch to new form 'for' statements 2020-05-26 07:49:26 +01:00
Joe Thornber
4313469475 [all] Switch from boost::shared_ptr -> std::shared_ptr. 
Shared_ptr has moved into the standard library since these tools were
first written.
 2020-04-30 15:02:43 +01:00
Joe Thornber
e801cc607b [block_manager] Hard code block size to 4k. 
We're never going to use anything other than 4k, and by hard coding it we
avoid making block_manager a template.
 2020-04-30 14:30:01 +01:00
Joe Thornber
ad79b627a4 Merge branch 'master' of github.com:jthornber/thin-provisioning-tools 2020-04-08 12:30:26 +01:00
Joe Thornber
ed22bfcdda [space-map-disk] Add virtual destructor to index_store. 
Bug. Cleaning up index stores would not be correct.
 2020-04-08 12:23:28 +01:00
Joe Thornber
1481ed0f8a [ref_counter] Make ref_counter an abstract base class. 
Forces people to override correctly.

Also make no_op_ref_counter final.
 2020-04-08 12:22:28 +01:00
Joe Thornber
501299a4ee [cache_*] array ref_counter wasn't overloaded correctly. 
Major bug, explains some space map issues I've seen when
restoring cache metadata.
 2020-04-08 12:19:55 +01:00
Joe Thornber
0ccee1759e [various] Squash a couple of clang warning wrt friend declarations. 2020-04-08 12:18:24 +01:00
Joe Thornber
5e347dddbf [various] remove dead code. 
Squashes warnings from clang++
 2020-04-08 12:12:59 +01:00
Ming-Hung Tsai
7a1c6dc4bf [space-map-disk] improve performance of finding a free bitmap entry 
* Simply test the raw bitmap entries against zero, to avoid
  time-consumed reference-count value extraction.

* Improve the way of iterating entries inside a bitmap:
  Extract 64-bit of bitmap entries at once, and use bitwise shift
  to iterate through the entries.
 2020-02-29 17:39:17 +08:00
Ming-Hung Tsai
cb0a77e2ae [block-manager] remove unused copy-assignment operator 
block_cache::block is non-copyable, and so are the containing structures.
 2020-02-29 00:29:01 +08:00
Ming-Hung Tsai
955e11bc28 [block-cache] fix potential file descriptor leak 
Encapsulate file descriptor into an object, to ensure that an fd will be
closed properly while exception raised, e.g., the block_cache throws
exception during the block_manager's construction.
 2020-02-23 15:41:16 +08:00
Ming-Hung Tsai
d6a8c03aa2 [btree_damage_visitor] factor out non-template functions 2020-02-17 11:42:24 +00:00
Joe Thornber
5e5409f48b [space-map/noop] Be explicit about returning an optional 
Needed for older version of g++
 2019-06-05 11:07:28 +01:00
Joe Thornber
7be9be1494 [space-maps/noop] Add the noops space map 
Used when we know we're npt modifying the metadata.
 2019-06-04 10:38:58 +01:00
Joe Thornber
aace49cdd6 [thin_repair] work in progress 2019-03-29 12:56:31 +00:00
Ming-Hung Tsai
8abac422b2 [space-map-disk] fix the search range (#117) 2019-01-03 10:46:35 +00:00
Ming-Hung Tsai
788f507e46 [run_set] fix invalid iterator operations (#113) 2018-09-05 11:21:09 +01:00
Ming-Hung Tsai
4b08c7793d [space map] fix accounting of allocatable blocks (#98) 
Preserve the input block first to avoid reusing it in subsequent
shadow operations, e.g., shadow another block when releasing
a recursive lock. (issue #97)
 2018-06-07 07:45:37 +01:00
Ming-Hung Tsai
582e424560 [space-map-disk] fix the number of free blocks (#93) 2018-04-17 14:00:44 +01:00
csonto
5b5aa971a0 Detect XML in *_check tools (#86) 
* [*_check] Detect XML in cache_check and era_check

This is based on previous commit b10d8d4440.

* [*_check] Fix typo in check_superblock
 2017-10-05 13:47:10 +01:00
Joe Thornber
3c761e6822 [all tools] Factor out open_bm() and open_tm. 
Many duplicates of this code.
 2017-10-05 11:53:40 +01:00
Ming-Hung Tsai
591f725232 [space map disk] reduce the lock counts to speed up free block searching (#84) 
Avoid repetitively acquiring/releasing the bitmap while finding a free block
 2017-09-04 18:05:19 +01:00
Joe Thornber
467be1a69e Add some std namespaces to get tests building. 
I guess a rogue header had previously been using the std namespace.
 2017-07-24 15:40:17 +01:00
Joe Thornber
209af19a02 [block manager] Don't allow the cache to be bigger than the block dev. 2017-07-24 15:28:23 +01:00
Ming-Hung Tsai
b7d418131d Spin-off syscall-related file operations (#78) 
* [file_utils] spin-off syscall-related file operations

1. Eliminate the potential circular dependency between
   persistent-data/block.h and persistent-data/file_utils.h,
   if the former one wants to include the latter.
2. Avoid namespace pollution by removing the "using namespace std"
   declaration in block.tcc.
3. Correct the header hierarchy: base/xml_utils.h now no longer
   depends on the higher-level persistent-data/file_utils.h

* [file_utils] support block files in get_file_length()
 2017-04-29 18:51:52 +01:00
Joe Thornber
8f25e1b234 [space-map-disk] optimise updating a ref count 2017-04-11 11:59:49 +01:00
Joe Thornber
db44b5b928 [space-map-disk] Keep track of the allocated prefix so we can start searching in a better place. 2017-04-11 09:40:08 +01:00
Joe Thornber
f2448b17ad [checksum] Switch to a faster implementation of crc32 2017-03-21 12:03:11 -04:00
Joe Thornber
73ae456175 [persistent-data/block] ::exit() if write_ref drops below zero 
We were throwing before, which obviously isn't allowed in a destructor.
 2017-03-13 13:18:44 +00:00
Ming-Hung Tsai
6863db6f86 [thin] fix duplicated counting of mapped blocks in restore emitter 2016-08-10 23:40:48 +08:00
Joe Thornber
52de2dd38e Merge branch 'v0.7-devel' of github.com:jthornber/thin-provisioning-tools into v0.7-devel 2016-07-11 15:51:58 +01:00
Joe Thornber
c2fdbad322 Merge branch '2016-07-07-improve-thin-repair-error-message' into v0.7-devel 
Conflicts:
	Makefile.in
	VERSION
	configure.ac
	persistent-data/file_utils.cc
 2016-07-11 15:51:30 +01:00
Joe Thornber
4779fb9b80 [various] Improve documentation 
Output file must be preallocated.
 2016-07-11 14:53:03 +01:00
Ming-Hung Tsai
7eac48793c [space map disk] tidy up: add const qualifier 2016-06-20 00:40:10 +08:00
Ming-Hung Tsai
60eb608825 [counting_visitor] fix the path for ValueCounter 2016-06-20 00:30:25 +08:00
Joe Thornber
a3eac8d5d8 Merge branch 'v0.7-devel' of github.com:jthornber/thin-provisioning-tools into v0.7-devel 2016-06-14 16:33:00 +01:00
Joe Thornber
642740e1b6 Merge branch '2016-03-08-cache-writeback' into v0.7-devel 2016-06-14 16:30:16 +01:00
Joe Thornber
b77ba14a2a [block] Use the definition of SECTOR_SHIFT from block-cache 2016-06-14 16:28:14 +01:00