* added some support for 64bit feature: extended struct ext2_block_group, block number types changed from uint32 to off_t
* added error traces, asserts
* BitmapBlock::CheckUnmarked() and CheckMarked() computed a wrong remainingBits and mask


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39203 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch from Janito Ferreira Filho (aka jjvf): this is the result of his GSoC assignment "Implement ext2/3 Read and Write Support for Haiku".
* Tested and checked most features and fs operations, while passing successfully the Linux fsck. Though the implementation still needs more testing and is to be used with
caution, it's better in my mind to have the code committed now given the size of the patch.
* Code style isn't extensively checked but is mostly OK. Code review is welcome.
Some notes from Janito:
* Sparse files aren't supported and hard links aren't supported. Write attributes methods aren't activated nor tested.
* Journaling needs more testing to make sure it behaves in a compatible way to Ext3, and support for the different modes hasn't been implemented (due to the block
and file cache incompatibility). Correct revoke management is also lacking, as is proper management of the superblock state and copies and block group copies.
* The code is partly based and inspired by the BFS implementation. Author information might need to be fixed.

I'd like to congratulate and thank Janito for his hard work to bring the implementation to the current state. I hope he'll keep on maintaining it and become a regular
contributor/committer.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38573 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented a read-only ext2 file system.
* It's not yet complete, doesn't support some ext2 stuff (like files over 4 GB),
and might have some other bugs (I only tested it with a single 20 MB ext2
image).
* To have a read/write ext2 file system, it would probably make more sense to
port GNU sources (like ext2fs lib), and use that. But a small read-only ext2
file sytem doesn't hurt, I think, and I don't know if ext2fs lib would be
feasible for kernel use (porting the file system from Linux directly would
also be an alternative, but probably more work).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26187 a95241bf-73f2-0310-859d-f6bbb57e9c96

* added some support for 64bit feature: extended struct ext2_block_group, block number types changed from uint32 to off_t
* added error traces, asserts
* BitmapBlock::CheckUnmarked() and CheckMarked() computed a wrong remainingBits and mask


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39203 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch from Janito Ferreira Filho (aka jjvf): this is the result of his GSoC assignment "Implement ext2/3 Read and Write Support for Haiku".
* Tested and checked most features and fs operations, while passing successfully the Linux fsck. Though the implementation still needs more testing and is to be used with
caution, it's better in my mind to have the code committed now given the size of the patch.
* Code style isn't extensively checked but is mostly OK. Code review is welcome.
Some notes from Janito:
* Sparse files aren't supported and hard links aren't supported. Write attributes methods aren't activated nor tested.
* Journaling needs more testing to make sure it behaves in a compatible way to Ext3, and support for the different modes hasn't been implemented (due to the block
and file cache incompatibility). Correct revoke management is also lacking, as is proper management of the superblock state and copies and block group copies.
* The code is partly based and inspired by the BFS implementation. Author information might need to be fixed.

I'd like to congratulate and thank Janito for his hard work to bring the implementation to the current state. I hope he'll keep on maintaining it and become a regular
contributor/committer.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38573 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented a read-only ext2 file system.
* It's not yet complete, doesn't support some ext2 stuff (like files over 4 GB),
and might have some other bugs (I only tested it with a single 20 MB ext2
image).
* To have a read/write ext2 file system, it would probably make more sense to
port GNU sources (like ext2fs lib), and use that. But a small read-only ext2
file sytem doesn't hurt, I think, and I don't know if ext2fs lib would be
feasible for kernel use (porting the file system from Linux directly would
also be an alternative, but probably more work).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26187 a95241bf-73f2-0310-859d-f6bbb57e9c96