int
ffs_reload_vnode(struct vnode *vp, void *args)
{
struct ffs_reload_args *fra = args;
struct inode *ip;
struct buf *bp;
int error;
/*
* Step 4: invalidate all inactive vnodes.
*/
if (vp->v_usecount == 0) {
vgonel(vp, fra->p);
return (0);
}
/*
* Step 5: invalidate all cached file data.
*/
if (vget(vp, LK_EXCLUSIVE, fra->p))
return (0);
if (vinvalbuf(vp, 0, fra->cred, fra->p, 0, 0))
panic("ffs_reload: dirty2");
/*
* Step 6: re-read inode data for all active vnodes.
*/
ip = VTOI(vp);
error = bread(fra->devvp,
fsbtodb(fra->fs, ino_to_fsba(fra->fs, ip->i_number)),
(int)fra->fs->fs_bsize, NOCRED, &bp);
if (error) {
brelse(bp);
vput(vp);
return (error);
}
*ip->i_din1 = *((struct ufs1_dinode *)bp->b_data +
ino_to_fsbo(fra->fs, ip->i_number));
ip->i_effnlink = DIP(ip, nlink);
brelse(bp);
vput(vp);
return (0);
}
int
ext2fs_reload_vnode(struct vnode *vp, void *args)
{
struct ext2fs_reload_args *era = args;
struct buf *bp;
struct inode *ip;
int error;
caddr_t cp;
/*
* Step 4: invalidate all inactive vnodes.
*/
if (vp->v_usecount == 0) {
vgonel(vp, era->p);
return (0);
}
/*
* Step 5: invalidate all cached file data.
*/
if (vget(vp, LK_EXCLUSIVE, era->p))
return (0);
if (vinvalbuf(vp, 0, era->cred, era->p, 0, 0))
panic("ext2fs_reload: dirty2");
/*
* Step 6: re-read inode data for all active vnodes.
*/
ip = VTOI(vp);
error = bread(era->devvp,
fsbtodb(era->fs, ino_to_fsba(era->fs, ip->i_number)),
(int)era->fs->e2fs_bsize, &bp);
if (error) {
vput(vp);
return (error);
}
cp = (caddr_t)bp->b_data +
(ino_to_fsbo(era->fs, ip->i_number) * EXT2_DINODE_SIZE(era->fs));
e2fs_iload((struct ext2fs_dinode *)cp, ip->i_e2din);
brelse(bp);
vput(vp);
return (0);
}
/* Try to discard pages, in order to recycle a vcache entry.
*
* We also make some sanity checks: ref count, open count, held locks.
*
* We also do some non-VM-related chores, such as releasing the cred pointer
* (for AIX and Solaris) and releasing the gnode (for AIX).
*
* Locking: afs_xvcache lock is held. If it is dropped and re-acquired,
* *slept should be set to warn the caller.
*
* Formerly, afs_xvcache was dropped and re-acquired for Solaris, but now it
* is not dropped and re-acquired for any platform. It may be that *slept is
* therefore obsolescent.
*
* OSF/1 Locking: VN_LOCK has been called.
* We do not lock the vnode here, but instead require that it be exclusive
* locked by code calling osi_VM_StoreAllSegments directly, or scheduling it
* from the bqueue - Matt
* Maybe better to just call vnode_pager_setsize()?
*/
int
osi_VM_FlushVCache(struct vcache *avc, int *slept)
{
struct vm_object *obj;
struct vnode *vp;
if (VREFCOUNT(avc) > 1)
return EBUSY;
if (avc->opens)
return EBUSY;
/* if a lock is held, give up */
if (CheckLock(&avc->lock))
return EBUSY;
return(0);
AFS_GUNLOCK();
vp = AFSTOV(avc);
#ifndef AFS_FBSD70_ENV
lock_vnode(vp);
#endif
if (VOP_GETVOBJECT(vp, &obj) == 0) {
VM_OBJECT_LOCK(obj);
vm_object_page_remove(obj, 0, 0, FALSE);
#if 1
if (obj->ref_count == 0) {
simple_lock(&vp->v_interlock);
vgonel(vp, curthread);
vp->v_tag = VT_AFS;
SetAfsVnode(vp);
}
#endif
VM_OBJECT_UNLOCK(obj);
}
#ifndef AFS_FBSD70_ENV
unlock_vnode(vp);
#endif
AFS_GLOCK();
return 0;
}
