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3dcaf063c20b1f1008286e8e351fb54286e5deaa
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21 Commits
Author SHA1 Message Date
Axel Dörfler 3dcaf063c2 Cleaned up locking and fixed a related bug: put_cached_block() could have been called without holding the cache lock. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15695 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-12-28 16:24:09 +00:00
Axel Dörfler 89f5f72a15 * Added debug output to vm_low_memory.cpp. 
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15568 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-12-16 17:35:03 +00:00
Axel Dörfler 4c0f46e2a3 The block_cache::LowMemoryHandler() must check if it could acquire the cache's lock; 
it might have been deleted in the mean time.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15565 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-12-16 15:50:13 +00:00
Axel Dörfler 182f88dda1 * block_cache_delete() now deletes the cache with with its lock held. 
* the link were not initialized in cached_block, as its constructor were never called
  (was using malloc/free instead of new/delete).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15564 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-12-16 15:45:00 +00:00
Axel Dörfler 005108a262 Forget to remove debug output. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15563 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-12-16 14:33:10 +00:00
Axel Dörfler 37bd67edb8 Now also flushes dirty blocks correctly (cannot happen if transactions are used, 
ie. never happens with BFS).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15562 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-12-16 13:53:34 +00:00
Axel Dörfler 41e866f3ae The block cache now registers and uses a low memory handler that will flush 
unused blocks when needed.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15561 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-12-16 13:49:23 +00:00
Axel Dörfler ebdb9dfebf Blocks are now put into an unused list when they aren't used. 
When memory gets low, the blocks on that list are also freed - but right now,
that only happens when a block is put back (not directly on demand, ie. via
a low memory handler).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15552 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-12-15 21:35:19 +00:00
Axel Dörfler 1c88c851ad Turned off debug output again - also temporarily removed the file cache warning 
about our block_io module not honouring the total length in read_pages().
Removed drops into the debugger when there is a block without an "original"
data buffer - that's completely normal and happens when someone asks for
a cleared block that is not yet in the cache.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14437 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-10-19 23:01:57 +00:00
Axel Dörfler ca7c5a9e13 Implemented cache_detach_sub_transaction() - not tested yet, though. 
Added and implemented new functions cache_blocks_in_[sub_]transaction().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14431 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-10-19 16:46:17 +00:00
Axel Dörfler 94752292dd First go at an implementation of sub transactions - code is not yet tested, though. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14429 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-10-19 14:37:29 +00:00
Axel Dörfler e432cef296 Updated a few more hash functions to be able to deal with negative numbers. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14067 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-08-26 02:07:41 +00:00
Axel Dörfler 8a4462f51c Turned off debug output. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14044 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-08-21 23:19:39 +00:00
Axel Dörfler 30616a3243 block_cache::Free() now accepts NULL pointers (it was already used this way before...). 
Unmounting BFS volumes should now work as expected.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14034 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-08-21 11:57:36 +00:00
Axel Dörfler 2a1492f0fa Moved the definition of the BlockAddressPool class into block_allocator.cpp, as it's 
not used outside of it.
Added tracking for the last transaction in the block cache; that way it can test
if the last transaction has been closed before opening a new one.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13022 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-06-09 02:14:28 +00:00
Axel Dörfler 19b77242ac Some minor cleanup: removed unneeded includes, updated introducing comment. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12932 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-06-02 18:23:26 +00:00
Axel Dörfler 317121e102 Work in progress of the new block allocator for the block cache. It works, but 
currently needs even more memory than the old one 8-)
Not cleaned up at all.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12921 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-06-01 16:39:38 +00:00
Axel Dörfler f4e5c34143 cache_abort_transaction() freed the wrong block, and thus causing a file system 
corruption even better than during its absence.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12903 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-05-30 16:54:08 +00:00
Axel Dörfler b3ef4fb41a Oops, forgot to implement cache_abort_transaction(); every failing transaction 
could have destroyed the BFS integrity... (just happened to me, that's how I
noticed it)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12867 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-05-28 15:11:18 +00:00
Axel Dörfler d5b04e50f8 First step into a new block allocation strategy for the block_cache 
(right now, it's still malloc/free, just encapsulated in an allocator class).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12662 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-05-13 18:18:28 +00:00
Axel Dörfler 2d690920ac Renamed system/core to system/kernel. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12360 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2005-04-13 13:22:10 +00:00