afs_omount(struct mount *mp, char *path, caddr_t data, struct nameidata *ndp,
THREAD_OR_PROC)
#endif
{
/* ndp contains the mounted-from device. Just ignore it.
* we also don't care about our proc struct. */
size_t size;
if (mp->mnt_flag & MNT_UPDATE)
return EINVAL;
AFS_GLOCK();
AFS_STATCNT(afs_mount);
if (afs_globalVFS) { /* Don't allow remounts. */
AFS_GUNLOCK();
return EBUSY;
}
afs_globalVFS = mp;
mp->vfs_bsize = 8192;
vfs_getnewfsid(mp);
#ifdef AFS_FBSD70_ENV /* XXX 70? */
MNT_ILOCK(mp);
mp->mnt_flag &= ~MNT_LOCAL;
mp->mnt_kern_flag |= MNTK_MPSAFE; /* solid steel */
#endif
mp->mnt_stat.f_iosize = 8192;
if (path != NULL)
copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size);
else
bcopy("/afs", mp->mnt_stat.f_mntonname, size = 4);
memset(mp->mnt_stat.f_mntonname + size, 0, MNAMELEN - size);
memset(mp->mnt_stat.f_mntfromname, 0, MNAMELEN);
strcpy(mp->mnt_stat.f_mntfromname, "AFS");
/* null terminated string "AFS" will fit, just leave it be. */
strcpy(mp->mnt_stat.f_fstypename, "afs");
#ifdef AFS_FBSD70_ENV
MNT_IUNLOCK(mp);
#endif
AFS_GUNLOCK();
afs_statfs(mp, &mp->mnt_stat, p);
return 0;
}
void
VSetPartitionDiskUsage_r(register struct DiskPartition64 *dp)
{
int bsize, code;
afs_int64 totalblks, free, used, availblks;
int reserved;
#ifdef afs_statvfs
struct afs_statvfs statbuf;
#else
struct afs_statfs statbuf;
#endif
if (dp->flags & PART_DONTUPDATE)
return;
/* Note: we don't bother syncing because it's only an estimate, update
* is syncing every 30 seconds anyway, we only have to keep the disk
* approximately 10% from full--you just can't get the stuff in from
* the net fast enough to worry */
#ifdef afs_statvfs
code = afs_statvfs(dp->name, &statbuf);
#else
code = afs_statfs(dp->name, &statbuf);
#endif
if (code < 0) {
Log("statfs of %s failed in VSetPartitionDiskUsage (errno = %d)\n",
dp->name, errno);
return;
}
if (statbuf.f_blocks == -1) { /* Undefined; skip stats.. */
Log("statfs of %s failed in VSetPartitionDiskUsage\n", dp->name);
return;
}
totalblks = statbuf.f_blocks;
free = statbuf.f_bfree;
reserved = free - statbuf.f_bavail;
#ifdef afs_statvfs
bsize = statbuf.f_frsize;
#else
bsize = statbuf.f_bsize;
#endif
availblks = totalblks - reserved;
dp->f_files = statbuf.f_files; /* max # of files in partition */
/* Now free and totalblks are in fragment units, but we want them in
* 1K units.
*/
if (bsize >= 1024) {
free *= (bsize / 1024);
totalblks *= (bsize / 1024);
availblks *= (bsize / 1024);
reserved *= (bsize / 1024);
} else {
free /= (1024 / bsize);
totalblks /= (1024 / bsize);
availblks /= (1024 / bsize);
reserved /= (1024 / bsize);
}
/* now compute remaining figures */
used = totalblks - free;
dp->minFree = reserved; /* only used in VPrintDiskStats_r */
dp->totalUsable = availblks;
dp->free = availblks - used; /* this is exactly f_bavail */
}
afs_omount(struct mount *mp, char *path, caddr_t data, struct nameidata *ndp,
struct thread *p)
#endif
{
/* ndp contains the mounted-from device. Just ignore it.
* we also don't care about our thread struct. */
size_t size;
if (mp->mnt_flag & MNT_UPDATE)
return EINVAL;
AFS_GLOCK();
AFS_STATCNT(afs_mount);
if (afs_globalVFS) { /* Don't allow remounts. */
AFS_GUNLOCK();
return EBUSY;
}
afs_globalVFS = mp;
mp->vfs_bsize = 8192;
vfs_getnewfsid(mp);
/*
* This is kind of ugly, as the interlock has grown to encompass
* more fields over time and there's not a good way to group the
* code without duplication.
*/
#ifdef AFS_FBSD62_ENV
MNT_ILOCK(mp);
#endif
mp->mnt_flag &= ~MNT_LOCAL;
#if defined(AFS_FBSD61_ENV) && !defined(AFS_FBSD62_ENV)
MNT_ILOCK(mp);
#endif
#if __FreeBSD_version < 1000021
mp->mnt_kern_flag |= MNTK_MPSAFE; /* solid steel */
#endif
#ifndef AFS_FBSD61_ENV
MNT_ILOCK(mp);
#endif
/*
* XXX mnt_stat "is considered stable as long as a ref is held".
* We should check that we hold the only ref.
*/
mp->mnt_stat.f_iosize = 8192;
if (path != NULL)
copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size);
else
bcopy("/afs", mp->mnt_stat.f_mntonname, size = 4);
memset(mp->mnt_stat.f_mntonname + size, 0, MNAMELEN - size);
memset(mp->mnt_stat.f_mntfromname, 0, MNAMELEN);
strcpy(mp->mnt_stat.f_mntfromname, "AFS");
/* null terminated string "AFS" will fit, just leave it be. */
strcpy(mp->mnt_stat.f_fstypename, "afs");
MNT_IUNLOCK(mp);
AFS_GUNLOCK();
#ifdef AFS_FBSD80_ENV
afs_statfs(mp, &mp->mnt_stat);
#else
afs_statfs(mp, &mp->mnt_stat, p);
#endif
return 0;
}