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* exofs: super_operations and file_system_typeBoaz Harrosh2009-03-311-1/+1
| | | | | | | | | | | | | | | | This patch ties all operation vectors into a file system superblock and registers the exofs file_system_type at module's load time. * The file system control block (AKA on-disk superblock) resides in an object with a special ID (defined in common.h). Information included in the file system control block is used to fill the in-memory superblock structure at mount time. This object is created before the file system is used by mkexofs.c It contains information such as: - The file system's magic number - The next inode number to be allocated Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
* exofs: dir_inode and directory operationsBoaz Harrosh2009-03-311-1/+1
| | | | | | | | | | | | | | implementation of directory and inode operations. * A directory is treated as a file, and essentially contains a list of <file name, inode #> pairs for files that are found in that directory. The object IDs correspond to the files' inode numbers and are allocated using a 64bit incrementing global counter. * Each file's control block (AKA on-disk inode) is stored in its object's attributes. This applies to both regular files and other types (directories, device files, symlinks, etc.). Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
* exofs: symlink_inode and fast_symlink_inode operationsBoaz Harrosh2009-03-311-1/+1
| | | | | | Generic implementation of symlink ops. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
* exofs: file and file_inode operationsBoaz Harrosh2009-03-311-1/+1
| | | | | | | | | | | | | implementation of the file_operations and inode_operations for regular data files. Most file_operations are generic vfs implementations except: - exofs_truncate will truncate the OSD object as well - Generic file_fsync is not good for none_bd devices so open code it - The default for .flush in Linux is todo nothing so call exofs_fsync on the file. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
* exofs: Kbuild, Headers and osd utilsBoaz Harrosh2009-03-311-0/+16
This patch includes osd infrastructure that will be used later by the file system. Also the declarations of constants, on disk structures, and prototypes. And the Kbuild+Kconfig files needed to build the exofs module. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
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