Initializes a virtual file system.
int vfs_init (gfsp) struct gfs *gfsp;
| gfsp | Points to a file system's attribute structure. |
The vfs_init entry point is invoked to initialize a file system. It is called when a file system implementation is loaded to perform file system-specific initialization.
The vfs_init entry point is not called through the virtual file system switch. Instead, it is called indirectly by the gfsadd kernel service when the vfs_init entry point address is stored in the gfs structure passed to the gfsadd kernel service as a parameter. (The vfs_init address is placed in the gfs_init field of the gfs structure.) The gfs structure is defined in the /usr/include/sys/gfs.h file.
Note: The return value for the vfs_init entry point is passed back as the return value from the gfsadd kernel service.
The vfs_init entry point can be called from the process environment only.
| 0 | Indicates success. |
Nonzero return values are returned from the /usr/include/sys/errno.h file to indicate failure.
The gfsadd kernel service.
Virtual File System Overview, Virtual File System Kernel Extensions Overview, Logical File System Overview in AIX Kernel Extensions and Device Support Programming Concepts.