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vfs_mountedon.9freebsd
Langue: en
Version: 308551 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
BSD mandoc
NAME
vfs_mountedon - check if the vnode belongs to a mounted file systemSYNOPSIS
In sys/param.h In sys/mount.h Ft int Fn vfs_mountedon struct vnode *vpDESCRIPTION
Fn vfs_mountedon inspects the Vt mount structure in Fa vp to determine if it points to a valid mount point. If the mount is valid, the vnode is considered to be busy.A common use of Fn vfs_mountedon is to call it on device vnodes to determine if they are already associated with a file system. This is done to prevent multiple mounts on the same device.
RETURN VALUES
Er EBUSY is returned if the vnode has a valid mount point; otherwise, 0 is returned.PSEUDOCODE
int ffs_mountfs(devvp, mp, td, malloctype) register struct vnode *devvp; struct mount *mp; struct thread *td; struct malloc_type *malloctype; { ... error = vfs_mountedon(devvp); if (error) return (error); ... }
AUTHORS
This manual page was written by An Chad David Aq davidc@acns.ab.ca .Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre