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Brian Behlendorf
7304b6e50f
Under Linux the convention for filesystem specific data structure is to embed it along with the generic vfs data structure. This differs significantly from Solaris. Since we want to integrates as cleanly with the Linux VFS as possible. This changes modifies zfs_znode_alloc() to allocate a znode with an embedded inode for use with the generic VFS. This is done by calling iget_locked() which will allocate a new inode if needed by calling sb->alloc_inode(). This function allocates enough memory for a znode_t by returns a pointer to the inode structure for Linux's VFS. This function is also responsible for setting the callback znode->z_set_ops_inodes() which is used to register the correct handlers for the inode.
Native ZFS for Linux! ZFS is an advanced file system and volume manager which was originally developed for Solaris. It has been successfully ported to FreeBSD and now there is a functional Linux ZFS kernel port too. The port currently includes a fully functional and stable SPA, DMU, and ZVOL with a ZFS Posix Layer (ZPL) on the way!
$ ./configure
$ make pkg
Full documentation for building, configuring, and using ZFS can be found at: http://zfsonlinux.org