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vref.9freebsd
Langue: en
Version: 365477 (ubuntu - 25/10/10)
Section: 9 (Appels noyau Linux)
BSD mandoc
NAME
vref - increment the use count for a vnodeSYNOPSIS
In sys/param.h In sys/vnode.h Ft void Fn vref struct vnode *vpDESCRIPTION
Increment the v_usecount field of a vnode.- Fa vp
- the vnode to increment
Each vnode maintains a reference count of how many parts of the system are using the vnode. This allows the system to detect when a vnode is no longer being used and can be safely recycled for a different file.
Any code in the system which is using a vnode (e.g. during the operation of some algorithm or to store in a data structure) should call Fn vref .
SEE ALSO
vget(9), vnode(9), vput(9), vrefcnt(9), vrele(9)AUTHORS
This manual page was written by An Doug Rabson .Contenus ©2006-2024 Benjamin Poulain
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