Messages in this thread | | | Date | Thu, 17 Mar 2005 16:16:36 +0100 | From | Jens Langner <> | Subject | [PATCH 2.6.11.4 1/1] fs: new filesystem implementation VXEXT1.0 |
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Hi,
The following URL is link to a large patch for a possible integration of a new filesystem implementation in the misc section of the kernel tree. It features a reverse engineered implementation of the so called VXEXT1.0 DOS filesystem which is commonly used on VxWorks RTOS systems from Wind River Inc., where the "extended DOS filesystem" mode is enabled.
The VXEXT filesystem is more or less a FAT16 based filesystem which was slightly modified by Wind River to allow the storage of more than 2GB data on a partition, as well as storing filenames with a maximum of 40 characters length. To achieve that, VxWorks uses a dynamic cluster size calculation which is based on the partition size where clusters can be larger than 32K. In addition, it uses a slightly modified directroy entry structure to allow to store filenames larger than 8+3 characters.
Please find the patch file accessible through the following URL: http://www.jens-langner.de/vxext_fs/vxext_fs_1_0-linux-2.6.11.4.patch
In addition, refer the detailed technical documentation on my implementation and the root directory of my distribution as well: http://www.jens-langner.de/vxext_fs/Documentation/vxext.txt http://www.jens-langner.de/vxext_fs/
Please note that large portions of the implementation are based on the already existing FAT16 (msdos) implementation in the kernel tree. However, instead of patching/drilling the original FAT16 implementation, an "outsourced" rework for developing the VEXT implementation was considered.
cheers, jens -- Jens Langner Ph: +49-351-4716545 Lannerstrasse 1 01219 Dresden Jens.Langner@light-speed.de Germany http://www.jens-langner.de/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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