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freebsd-manpages_8.2-1_all 
NAME
vfs_mountedfrom -- sets the mounted from name for a mount
SYNOPSIS
#include <sys/param.h>
#include <sys/mount.h>
void
vfs_mountedfrom(struct mount *mp, const char *from);
DESCRIPTION
The vfs_mountedfrom() function sets the mounted from name for a mount.
This value is used by statfs(2) to fill in f_mntfromname.
In most cases from is the device that contains the file system, but in
the case of a pseudo file system it could be a descriptive name like
"devfs" or "procfs".
AUTHORS
This manual page was written by Chad David <davidc@acns.ab.ca>.