PVFS Data Structures

Here are the data structures with brief descriptions:

bmi_optimistic_buffer_info	Used to describe a memory region in passing down a registration hint from IO routines
BMI_unexpected_info	Used to describe unexpected message arrivals
file_ref	Encapsulates the file descriptor
PINT_fsck_options	FSCK options
PINT_perf_counter	Struct representing a perf counter instance
PINT_perf_key	Describes a single key to be stored in the perf counter interface
PINT_Request	NOTE: The encoding/decoding functions must be updated with changes to this struct
PINT_tcache	Describes a tcache instance
PINT_tcache_entry	Describes a single entry in the tcache
pvfs2_inode_t	Per inode private pvfs2 info
pvfs2_mount_options_t	Mount options
pvfs2_mount_sb_info_t	Temporary structure used only for sb mount time that groups the mount time data provided along with a private superblock structure that is allocated before a 'kernel' superblock is allocated
pvfs2_opaque_handle_t	PVFS2 specific structure that we use for constructing an opaque handle at the time an openg() system call that will be used at subsequent openfh system call We stuff in enough information into this buffer that subsequent openfh calls don't have to communicate with server
pvfs2_sb_info_t	Per superblock private pvfs2 info
PVFS_credentials	Credentials (stubbed for future authentication methods)
PVFS_dirent	Directory entry contents
PVFS_error_server	These structures/calls are used when returning detailed lists of errors from a particular call
PVFS_object_ref	Object reference (uniquely refers to a single file, directory, or symlink)
PVFS_statfs	Statfs and misc
PVFS_sys_attr_s	Describes attributes for a file, directory, or symlink
PVFS_sys_dist_s	Describes file distribution parameters
PVFS_sys_mntent	Describes a PVFS2 file system
PVFS_sysresp_create_s	Holds results of a create operation (reference to new file)
PVFS_sysresp_getattr_s	Holds results of a getattr operation (attributes of object)
PVFS_sysresp_geteattr_s	Holds results of a geteattr_list operation (attributes of object)
PVFS_sysresp_io_s	Holds results of an I/O operation (total number of bytes read/written)
PVFS_sysresp_listeattr_s	Holds results of a listeattr_list operation (keys of object)
PVFS_sysresp_lookup_s	Holds results of a lookup operation (reference to object)
PVFS_sysresp_mkdir_s	Holds results of a mkdir operation (reference to new directory)
PVFS_sysresp_readdir_s	Holds results of a readdir operation (position token, directory version information, array of directory entries)
PVFS_sysresp_readdirplus_s	Holds results of a readdirplus operation (position token, directory version information, array of directory entries, array of stat error codes and array of attribute information)
PVFS_sysresp_readlink_s	Holds results of a readlink operation (string name of target)
PVFS_sysresp_symlink_s	Holds results of a symlink operation (reference to new symlink)

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