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lsvfs(1) [freebsd man page]

LSVFS(1)						    BSD General Commands Manual 						  LSVFS(1)

lsvfs -- list installed virtual file systems SYNOPSIS
lsvfs [vfsname ...] DESCRIPTION
The lsvfs command lists information about the currently loaded virtual file system modules. When vfsname arguments are given, lsvfs lists information about the specified VFS modules. Otherwise, lsvfs lists all currently loaded modules. The information is as follows: Filesystem the name of the file system, as would be used in the type parameter to mount(2) and the -t option to mount(8) Num the filesystem type number. Refs the number of references to this VFS; i.e., the number of currently mounted file systems of this type Flags flag bits. SEE ALSO
mount(2), getvfsbyname(3), mount(8) HISTORY
A lsvfs command appeared in FreeBSD 2.0. BSD
June 9, 2013 BSD

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GETVFSBYNAME(3) 					   BSD Library Functions Manual 					   GETVFSBYNAME(3)

getvfsbyname -- get information about a filesystem LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <sys/param.h> #include <sys/mount.h> int getvfsbyname(const char *name, struct vfsconf *vfc); DESCRIPTION
The getvfsbyname() function provides access to information about a filesystem module that is configured in the kernel. If successful, the requested filesystem vfsconf is returned in the location pointed to by vfc. The fields in a ``struct vfsconf'' are defined as follows: vfc_name the name of the filesystem vfc_typenum the filesystem type number assigned by the kernel vfc_refcount the number of active mount points using the filesystem RETURN VALUES
The getvfsbyname() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error. ERRORS
The following errors may be reported: [EFAULT] The vfc pointer contains an invalid address. [ENOENT] The name specifies a filesystem that is unknown or not configured in the kernel. SEE ALSO
mount(2), sysctl(3), mount(8), sysctl(8) HISTORY
A variant of the getvfsbyname() function first appeared in FreeBSD 2.0. BSD
May 4, 1995 BSD

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