NAME
vinvalbuf — flushes and invalidates all buffers associated with a vnodeSYNOPSIS
#include <sys/param.h>#include <sys/vnode.h> int
vinvalbuf(struct vnode *vp, int flags, struct ucred *cred, int slpflag, int slptimeo);
DESCRIPTION
The vinvalbuf() function invalidates all of the buffers associated with the given vnode. This includes buffers on the clean list and the dirty list. If theV_SAVE flag
is specified then the buffers on the dirty list are synced prior to being
released. If there is a VM Object associated with the vnode, it is removed.
Its arguments are:
- vp
- A pointer to the vnode whose buffers will be invalidated.
- flags
- The only supported flag is
V_SAVEand it indicates that dirty buffers should be synced with the disk. - cred
- The user credentials that are used to
VOP_FSYNC(9) buffers if
V_SAVEis set. - slpflag
- The slp flag that will be used in the priority of any sleeps in the function.
- slptimeo
- The timeout for any sleeps in the function.
LOCKS
The vnode is assumed to be locked prior to the call and remains locked upon return. Giant must be held by prior to the call and remains locked upon return.RETURN VALUES
A 0 value is returned on success.PSEUDOCODE
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); error = vinvalbuf(devvp, V_SAVE, cred, 0, 0); VOP_UNLOCK(devvp, 0); if (error) return (error);
ERRORS
- [
ENOSPC] - The file system is full. (With
V_SAVE) - [
EDQUOT] - Disc quota exceeded. (With
V_SAVE) - [
EWOULDBLOCK] - Sleep operation timed out. (See slptimeo)
- [
ERESTART] - A signal needs to be delivered and the system call should
be restarted. (With
PCATCHset in slpflag) - [
EINTR] - The system has been interrupted by a signal. (With
PCATCHset in slpflag)
SEE ALSO
tsleep(9), VOP_FSYNC(9)AUTHORS
This manual page was written by Chad David <[email protected]>.| October 20, 2008 | Debian |