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@(#)kvm_getvfsbyname.3 8.3 (Berkeley) 5/4/95
$FreeBSD: src/lib/libc/gen/getvfsbyname.3,v 1.12 2001/10/01 16:08:51 ru Exp $

.Dd May 4, 1995 .Dt GETVFSBYNAME 3 .Os .Sh NAME .Nm getvfsbyname .Nd get information about a filesystem .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/param.h n sys/mount.h .Ft int .Fn getvfsbyname "const char *name" "struct vfsconf *vfc" .Sh DESCRIPTION The .Fn getvfsbyname function provides access to information about a filesystem module that is configured in the kernel. If successful, the requested filesystem .Fa vfsconf is returned in the location pointed to by .Fa vfc . The fields in a .Dq Li struct vfsconf are defined as follows:

p l -tag -compact -width vfc_refcount t vfc_name the name of the filesystem t vfc_typenum the filesystem type number assigned by the kernel t vfc_refcount the number of active mount points using the filesystem .El .Sh RETURN VALUES .Rv -std getvfsbyname .Sh ERRORS The following errors may be reported: l -tag -width Er t Bq Er EFAULT The .Fa vfc pointer contains an invalid address. t Bq Er ENOENT The .Fa name specifies a filesystem that is unknown or not configured in the kernel. .El .Sh SEE ALSO .Xr mount 2 , .Xr sysctl 3 , .Xr mount 8 , .Xr sysctl 8 .Sh HISTORY A variant of the .Fn getvfsbyname function first appeared in .Fx 2.0 .