function provides access to information about a
file system module that is configured in the kernel.
the requested file system
is returned in the location pointed to by
Fa vfc .
The fields in a
are defined as follows:
the name of the file system
the file system type number assigned by the kernel
the number of active mount points using the file system
flag bits, as described below
The flags are defined as follows:
statically compiled into kernel
may get data over the network
writes are not implemented
data does not represent real files
aliases some other mounted FS
stores file names as Unicode
can be mounted from within a jail if
sysctl is set to
Rv -std getvfsbyname
The following errors may be reported:
Bq Er EFAULT
points to an invalid address.
Bq Er ENOENT
specifies a file system that is unknown or not configured in the kernel.