/*
* Retry a mount
*/
static void
amfs_retry(int rc, int term, opaque_t arg)
{
struct continuation *cp = (struct continuation *) arg;
am_node *mp = cp->mp;
int error = 0;
dlog("Commencing retry for mount of %s", mp->am_path);
new_ttl(mp);
if ((cp->start + ALLOWED_MOUNT_TIME) < clocktime(NULL)) {
/*
* The entire mount has timed out. Set the error code and skip past all
* the mntfs's so that amfs_bgmount will not have any more
* ways to try the mount, thus causing an error.
*/
plog(XLOG_INFO, "mount of \"%s\" has timed out", mp->am_path);
error = ETIMEDOUT;
while (*cp->mf)
cp->mf++;
/* explicitly forbid further retries after timeout */
cp->retry = FALSE;
}
if (error || !IN_PROGRESS(cp))
error = amfs_bgmount(cp);
reschedule_timeout_mp();
}
/*
* Initialize an allocated mount node.
* It is assumed that the mount node was b-zero'd
* before getting here so anything that would
* be set to zero isn't done here.
*/
void
init_map(am_node *mp, char *dir)
{
/*
* mp->am_mapno is initialized by exported_ap_alloc
* other fields don't need to be set to zero.
*/
mp->am_mnt = new_mntfs();
mp->am_mfarray = 0;
mp->am_name = strdup(dir);
mp->am_path = strdup(dir);
mp->am_gen = new_gen();
#ifdef HAVE_FS_AUTOFS
mp->am_autofs_fh = 0;
#endif /* HAVE_FS_AUTOFS */
mp->am_timeo = gopt.am_timeo;
mp->am_attr.ns_status = NFS_OK;
mp->am_fattr = gen_fattr;
mp->am_fattr.na_fsid = 42;
mp->am_fattr.na_fileid = mp->am_gen;
clocktime(&mp->am_fattr.na_atime);
/* next line copies a "struct nfstime" among several fields */
mp->am_fattr.na_mtime = mp->am_fattr.na_ctime = mp->am_fattr.na_atime;
new_ttl(mp);
mp->am_stats.s_mtime = mp->am_fattr.na_atime.nt_seconds;
mp->am_dev = -1;
mp->am_rdev = -1;
}
static am_node *
amfs_direct_readlink(am_node *mp, int *error_return)
{
am_node *xp;
int rc = 0;
xp = next_nonerror_node(mp->am_child);
if (!xp) {
if (!mp->am_al->al_mnt->mf_private)
amfs_mkcacheref(mp->am_al->al_mnt);
xp = amfs_generic_lookup_child(mp, mp->am_path + 1, &rc, VLOOK_CREATE);
if (xp && rc < 0)
xp = amfs_generic_mount_child(xp, &rc);
}
if (xp) {
new_ttl(xp); /* (7/12/89) from Rein Tollevik */
return xp;
}
if (amd_state == Finishing)
rc = ENOENT;
*error_return = rc;
return 0;
}
/*
* Retry a mount
*/
static void
amfs_retry(int rc, int term, opaque_t arg)
{
struct continuation *cp = (struct continuation *) arg;
am_node *mp = cp->mp;
int error = 0;
dlog("Commencing retry for mount of %s", mp->am_path);
new_ttl(mp);
if ((cp->start + ALLOWED_MOUNT_TIME) < clocktime(NULL)) {
/*
* The entire mount has timed out. Set the error code and skip past all
* the mntfs's so that amfs_bgmount will not have any more
* ways to try the mount, thus causing an error.
*/
plog(XLOG_INFO, "mount of \"%s\" has timed out", mp->am_path);
error = ETIMEDOUT;
while (*cp->al)
cp->al++;
/* explicitly forbid further retries after timeout */
cp->retry = FALSE;
}
if (error || !IN_PROGRESS(cp))
error = amfs_bgmount(cp);
else
/* Normally it's amfs_bgmount() which frees the continuation. However, if
* the mount is already in progress and we're in amfs_retry() for another
* node we don't try mounting the filesystem once again. Still, we have
* to free the continuation as we won't get called again and thus would
* leak the continuation structure and our am_loc references.
*/
free_continuation(cp);
reschedule_timeout_mp();
}
/*
* Convert from file handle to automount node.
*/
static am_node *
fh_to_mp3(am_nfs_fh *fhp, int *rp, int vop)
{
struct am_fh *fp = (struct am_fh *) fhp;
am_node *ap = NULL;
if (fp->u.s.fhh_type != 0) {
/* New filehandle type */
int len = sizeof(*fhp) - sizeof(fp->fhh_gen);
char *path = xmalloc(len+1);
/*
* Because fhp is treated as a filehandle we use memcpy
* instead of xstrlcpy.
*/
memcpy(path, (char *) fp->u.fhh_path, len);
path[len] = '\0';
/* dlog("fh_to_mp3: new filehandle: %s", path); */
ap = path_to_exported_ap(path);
XFREE(path);
} else {
/* dlog("fh_to_mp3: old filehandle: %d", fp->u.s.fhh_id); */
/*
* Check process id matches
* If it doesn't then it is probably
* from an old kernel-cached filehandle
* which is now out of date.
*/
if (fp->u.s.fhh_pid != get_server_pid()) {
dlog("fh_to_mp3: wrong pid %ld != my pid %ld",
(long) fp->u.s.fhh_pid, get_server_pid());
goto drop;
}
/*
* Get hold of the supposed mount node
*/
ap = get_exported_ap(fp->u.s.fhh_id);
}
/*
* Check the generation number in the node
* matches the one from the kernel. If not
* then the old node has been timed out and
* a new one allocated.
*/
if (ap != NULL && ap->am_gen != fp->fhh_gen)
ap = NULL;
/*
* If it doesn't exists then drop the request
*/
if (!ap)
goto drop;
#if 0
/*
* If the node is hung then locate a new node
* for it. This implements the replicated filesystem
* retries.
*/
if (ap->am_al->al_mnt && FSRV_ISDOWN(ap->am_al->al_mnt->mf_server) && ap->am_parent) {
int error;
am_node *orig_ap = ap;
dlog("fh_to_mp3: %s (%s) is hung: lookup alternative file server",
orig_ap->am_path, orig_ap->am_al->al_mnt->mf_info);
/*
* Update modify time of parent node.
* With any luck the kernel will re-stat
* the child node and get new information.
*/
clocktime(&orig_ap->am_fattr.na_mtime);
/*
* Call the parent's lookup routine for an object
* with the same name. This may return -1 in error
* if a mount is in progress. In any case, if no
* mount node is returned the error code is propagated
* to the caller.
*/
if (vop == VLOOK_CREATE) {
ap = orig_ap->am_parent->am_al->al_mnt->mf_ops->lookup_child(orig_ap->am_parent, orig_ap->am_name, &error, vop);
if (ap && error < 0)
ap = orig_ap->am_parent->am_al->al_mnt->mf_ops->mount_child(ap, &error);
} else {
ap = NULL;
error = ESTALE;
}
if (ap == 0) {
if (error < 0 && amd_state == Finishing)
error = ENOENT;
*rp = error;
return 0;
}
/*
* Update last access to original node. This
* avoids timing it out and so sending ESTALE
* back to the kernel.
* XXX - Not sure we need this anymore (jsp, 90/10/6).
*/
new_ttl(orig_ap);
}
#endif /* 0 */
/*
* Disallow references to objects being unmounted, unless
* they are automount points.
*/
if (ap->am_al->al_mnt && (ap->am_al->al_mnt->mf_flags & MFF_UNMOUNTING) &&
!(ap->am_flags & AMF_ROOT)) {
if (amd_state == Finishing)
*rp = ENOENT;
else
*rp = -1;
return 0;
}
new_ttl(ap);
drop:
if (!ap || !ap->am_al->al_mnt) {
/*
* If we are shutting down then it is likely
* that this node has disappeared because of
* a fast timeout. To avoid things thrashing
* just pretend it doesn't exist at all. If
* ESTALE is returned, some NFS clients just
* keep retrying (stupid or what - if it's
* stale now, what's it going to be in 5 minutes?)
*/
if (amd_state == Finishing)
*rp = ENOENT;
else {
*rp = ESTALE;
amd_stats.d_stale++;
}
}
return ap;
}
/*
* Pick a file system to try mounting and
* do that in the background if necessary
*
For each location:
discard previous mount location if required
fetch next mount location
if the filesystem failed to be mounted then
this_error = error from filesystem
goto failed
if the filesystem is mounting or unmounting then
goto retry;
if the fileserver is down then
this_error = EIO
continue;
if the filesystem is already mounted
break
fi
this_error = initialize mount point
if no error on this mount and mount is delayed then
this_error = -1
fi
if this_error < 0 then
retry = true
fi
if no error on this mount then
if mount in background then
run mount in background
return -1
else
this_error = mount in foreground
fi
fi
if an error occurred on this mount then
update stats
save error in mount point
fi
endfor
*/
static int
amfs_bgmount(struct continuation *cp)
{
am_node *mp = cp->mp;
am_loc *loc;
mntfs *mf;
int this_error = -1; /* Per-mount error */
int hard_error = -1; /* Cumulative per-node error */
if (mp->am_al)
free_loc(mp->am_al);
/*
* Try to mount each location.
* At the end:
* hard_error == 0 indicates something was mounted.
* hard_error > 0 indicates everything failed with a hard error
* hard_error < 0 indicates nothing could be mounted now
*/
for (mp->am_al = *cp->al; *cp->al; cp->al++, mp->am_al = *cp->al) {
am_ops *p;
loc = dup_loc(mp->am_al);
mf = loc->al_mnt;
p = mf->mf_ops;
if (hard_error < 0)
hard_error = this_error;
this_error = 0;
if (mf->mf_error > 0) {
this_error = mf->mf_error;
goto failed;
}
if (mf->mf_flags & (MFF_MOUNTING | MFF_UNMOUNTING)) {
/*
* Still mounting - retry later
*/
dlog("mount of \"%s\" already pending", mf->mf_info);
goto retry;
}
if (FSRV_ISDOWN(mf->mf_server)) {
/*
* Would just mount from the same place
* as a hung mount - so give up
*/
dlog("%s is already hung - giving up", mf->mf_server->fs_host);
this_error = EIO;
goto failed;
}
XFREE(mp->am_link);
mp->am_link = NULL;
if (loc->al_fo && loc->al_fo->opt_sublink && loc->al_fo->opt_sublink[0])
mp->am_link = xstrdup(loc->al_fo->opt_sublink);
/*
* Will usually need to play around with the mount nodes
* file attribute structure. This must be done here.
* Try and get things initialized, even if the fileserver
* is not known to be up. In the common case this will
* progress things faster.
*/
/*
* Fill in attribute fields.
*/
if (mf->mf_fsflags & FS_DIRECTORY)
mk_fattr(&mp->am_fattr, NFDIR);
else
mk_fattr(&mp->am_fattr, NFLNK);
if (mf->mf_flags & MFF_MOUNTED) {
dlog("duplicate mount of \"%s\" ...", mf->mf_info);
/*
* Skip initial processing of the mountpoint if already mounted.
* This could happen if we have multiple sublinks into the same f/s,
* or if we are restarting an already-mounted filesystem.
*/
goto already_mounted;
}
if (mf->mf_fo && mf->mf_fo->fs_mtab) {
plog(XLOG_MAP, "Trying mount of %s on %s fstype %s mount_type %s",
mf->mf_fo->fs_mtab, mf->mf_mount, p->fs_type,
mp->am_flags & AMF_AUTOFS ? "autofs" : "non-autofs");
}
if (p->fs_init && !(mf->mf_flags & MFF_RESTART))
this_error = p->fs_init(mf);
if (this_error > 0)
goto failed;
if (this_error < 0)
goto retry;
if (loc->al_fo && loc->al_fo->opt_delay) {
/*
* If there is a delay timer on the location
* then don't try to mount if the timer
* has not expired.
*/
int i = atoi(loc->al_fo->opt_delay);
time_t now = clocktime(NULL);
if (i > 0 && now < (cp->start + i)) {
dlog("Mount of %s delayed by %lds", mf->mf_mount, (long) (i - now + cp->start));
goto retry;
}
}
/*
* If the directory is not yet made and it needs to be made, then make it!
*/
if (!(mf->mf_flags & MFF_MKMNT) && mf->mf_fsflags & FS_MKMNT) {
plog(XLOG_INFO, "creating mountpoint directory '%s'", mf->mf_mount);
this_error = mkdirs(mf->mf_mount, 0555);
if (this_error) {
plog(XLOG_ERROR, "mkdirs failed: %s", strerror(this_error));
goto failed;
}
mf->mf_flags |= MFF_MKMNT;
}
#ifdef HAVE_FS_AUTOFS
if (mf->mf_flags & MFF_IS_AUTOFS)
if ((this_error = autofs_get_fh(mp)))
goto failed;
#endif /* HAVE_FS_AUTOFS */
already_mounted:
mf->mf_flags |= MFF_MOUNTING;
if (mf->mf_fsflags & FS_MBACKGROUND) {
dlog("backgrounding mount of \"%s\"", mf->mf_mount);
if (cp->callout) {
untimeout(cp->callout);
cp->callout = 0;
}
/* actually run the task, backgrounding as necessary */
run_task(mount_node, (opaque_t) mp, amfs_cont, (opaque_t) cp);
return -1;
} else {
dlog("foreground mount of \"%s\" ...", mf->mf_mount);
this_error = mount_node((opaque_t) mp);
}
mf->mf_flags &= ~MFF_MOUNTING;
if (this_error > 0)
goto failed;
if (this_error == 0) {
am_mounted(mp);
break; /* Success */
}
retry:
if (!cp->retry)
continue;
dlog("will retry ...\n");
/*
* Arrange that amfs_bgmount is called
* after anything else happens.
*/
dlog("Arranging to retry mount of %s", mp->am_path);
sched_task(amfs_retry, (opaque_t) cp, get_mntfs_wchan(mf));
if (cp->callout)
untimeout(cp->callout);
cp->callout = timeout(RETRY_INTERVAL, wakeup,
(opaque_t) get_mntfs_wchan(mf));
mp->am_ttl = clocktime(NULL) + RETRY_INTERVAL;
/*
* Not done yet - so don't return anything
*/
return -1;
failed:
if (!FSRV_ISDOWN(mf->mf_server)) {
/* mark the mount as failed unless the server is down */
amd_stats.d_merr++;
mf->mf_error = this_error;
mf->mf_flags |= MFF_ERROR;
#ifdef HAVE_FS_AUTOFS
if (mp->am_autofs_fh)
autofs_release_fh(mp);
#endif /* HAVE_FS_AUTOFS */
if (mf->mf_flags & MFF_MKMNT) {
rmdirs(mf->mf_mount);
mf->mf_flags &= ~MFF_MKMNT;
}
}
/*
* Wakeup anything waiting for this mount
*/
wakeup(get_mntfs_wchan(mf));
free_loc(loc);
/* continue */
}
/*
* If we get here, then either the mount succeeded or
* there is no more mount information available.
*/
if (this_error) {
if (mp->am_al)
free_loc(mp->am_al);
mp->am_al = loc = new_loc();
mf = loc->al_mnt;
#ifdef HAVE_FS_AUTOFS
if (mp->am_flags & AMF_AUTOFS)
autofs_mount_failed(mp);
else
#endif /* HAVE_FS_AUTOFS */
nfs_quick_reply(mp, this_error);
if (hard_error <= 0)
hard_error = this_error;
if (hard_error < 0)
hard_error = ETIMEDOUT;
/*
* Set a small(ish) timeout on an error node if
* the error was not a time out.
*/
switch (hard_error) {
case ETIMEDOUT:
case EWOULDBLOCK:
case EIO:
mp->am_timeo = 17;
break;
default:
mp->am_timeo = 5;
break;
}
new_ttl(mp);
} else {
mf = loc->al_mnt;
/*
* Wakeup anything waiting for this mount
*/
wakeup(get_mntfs_wchan(mf));
hard_error = 0;
}
/*
* Make sure that the error value in the mntfs has a
* reasonable value.
*/
if (mf->mf_error < 0) {
mf->mf_error = hard_error;
if (hard_error)
mf->mf_flags |= MFF_ERROR;
}
/*
* In any case we don't need the continuation any more
*/
free_continuation(cp);
return hard_error;
}
/*
* The continuation function. This is called by
* the task notifier when a background mount attempt
* completes.
*/
static void
amfs_cont(int rc, int term, opaque_t arg)
{
struct continuation *cp = (struct continuation *) arg;
am_node *mp = cp->mp;
mntfs *mf = mp->am_al->al_mnt;
dlog("amfs_cont: '%s'", mp->am_path);
/*
* Definitely not trying to mount at the moment
*/
mf->mf_flags &= ~MFF_MOUNTING;
/*
* While we are mounting - try to avoid race conditions
*/
new_ttl(mp);
/*
* Wakeup anything waiting for this mount
*/
wakeup(get_mntfs_wchan(mf));
/*
* Check for termination signal or exit status...
*/
if (rc || term) {
#ifdef HAVE_FS_AUTOFS
if (mf->mf_flags & MFF_IS_AUTOFS &&
!(mf->mf_flags & MFF_MOUNTED))
autofs_release_fh(mp);
#endif /* HAVE_FS_AUTOFS */
if (term) {
/*
* Not sure what to do for an error code.
*/
mf->mf_error = EIO; /* XXX ? */
mf->mf_flags |= MFF_ERROR;
plog(XLOG_ERROR, "mount for %s got signal %d", mp->am_path, term);
} else {
/*
* Check for exit status...
*/
#ifdef __linux__
/*
* HACK ALERT!
*
* On Linux (and maybe not only) it's possible to run
* an amd which "knows" how to mount certain combinations
* of nfs_proto/nfs_version which the kernel doesn't grok.
* So if we got an EINVAL and we have a server that's not
* using NFSv2/UDP, try again with NFSv2/UDP.
*
* Too bad that there is no way to dynamically determine
* what combinations the _client_ supports, as opposed to
* what the _server_ supports...
*/
if (rc == EINVAL &&
mf->mf_server &&
(mf->mf_server->fs_version != 2 ||
!STREQ(mf->mf_server->fs_proto, "udp")))
mf->mf_flags |= MFF_NFS_SCALEDOWN;
else
#endif /* __linux__ */
{
mf->mf_error = rc;
mf->mf_flags |= MFF_ERROR;
errno = rc; /* XXX */
if (!STREQ(mp->am_al->al_mnt->mf_ops->fs_type, "linkx"))
plog(XLOG_ERROR, "%s: mount (amfs_cont): %m", mp->am_path);
}
}
if (!(mf->mf_flags & MFF_NFS_SCALEDOWN)) {
/*
* If we get here then that attempt didn't work, so
* move the info vector pointer along by one and
* call the background mount routine again
*/
amd_stats.d_merr++;
cp->al++;
}
amfs_bgmount(cp);
if (mp->am_error > 0)
assign_error_mntfs(mp);
} else {
/*
* The mount worked.
*/
dlog("Mounting %s returned success", cp->mp->am_path);
am_mounted(cp->mp);
free_continuation(cp);
}
reschedule_timeout_mp();
}
void
am_mounted(am_node *mp)
{
mntfs *mf = mp->am_mnt;
mf_mounted(mf);
/*
* Patch up path for direct mounts
*/
if (mp->am_parent && mp->am_parent->am_mnt->mf_ops == &amfs_direct_ops)
mp->am_path = str3cat(mp->am_path, mp->am_parent->am_path, "/", ".");
/*
* Check whether this mount should be cached permanently
*/
if (mf->mf_ops->fs_flags & FS_NOTIMEOUT) {
mp->am_flags |= AMF_NOTIMEOUT;
} else if (mf->mf_mount[1] == '\0' && mf->mf_mount[0] == '/') {
mp->am_flags |= AMF_NOTIMEOUT;
} else {
mntent_t mnt;
if (mf->mf_mopts) {
mnt.mnt_opts = mf->mf_mopts;
if (hasmntopt(&mnt, "nounmount"))
mp->am_flags |= AMF_NOTIMEOUT;
if ((mp->am_timeo = hasmntval(&mnt, "utimeout")) == 0)
mp->am_timeo = gopt.am_timeo;
}
}
/*
* If this node is a symlink then
* compute the length of the returned string.
*/
if (mp->am_fattr.na_type == NFLNK)
mp->am_fattr.na_size = strlen(mp->am_link ? mp->am_link : mp->am_mnt->mf_mount);
/*
* Record mount time
*/
mp->am_fattr.na_mtime.nt_seconds = mp->am_stats.s_mtime = clocktime();
new_ttl(mp);
/*
* Update mtime of parent node
*/
if (mp->am_parent && mp->am_parent->am_mnt)
mp->am_parent->am_fattr.na_mtime.nt_seconds = mp->am_stats.s_mtime;
/*
* Now, if we can, do a reply to our NFS client here
* to speed things up.
*/
quick_reply(mp, 0);
/*
* Update stats
*/
amd_stats.d_mok++;
}
void
am_mounted(am_node *mp)
{
mntfs *mf = mp->am_mnt;
mf_mounted(mf);
#ifdef HAVE_FS_AUTOFS
if (mf->mf_flags & MFF_AUTOFS)
autofs_mounted(mp);
#endif /* HAVE_FS_AUTOFS */
/*
* Patch up path for direct mounts
*/
if (mp->am_parent && mp->am_parent->am_mnt->mf_fsflags & FS_DIRECT)
mp->am_path = str3cat(mp->am_path, mp->am_parent->am_path, "/", ".");
/*
* Check whether this mount should be cached permanently
*/
if (mf->mf_fsflags & FS_NOTIMEOUT) {
mp->am_flags |= AMF_NOTIMEOUT;
} else if (mf->mf_mount[1] == '\0' && mf->mf_mount[0] == '/') {
mp->am_flags |= AMF_NOTIMEOUT;
} else {
mntent_t mnt;
if (mf->mf_mopts) {
mnt.mnt_opts = mf->mf_mopts;
if (hasmntopt(&mnt, "nounmount"))
mp->am_flags |= AMF_NOTIMEOUT;
if ((mp->am_timeo = hasmntval(&mnt, "utimeout")) == 0)
mp->am_timeo = gopt.am_timeo;
}
}
/*
* If this node is a symlink then
* compute the length of the returned string.
*/
if (mp->am_fattr.na_type == NFLNK)
mp->am_fattr.na_size = strlen(mp->am_link ? mp->am_link : mp->am_mnt->mf_mount);
/*
* Record mount time
*/
mp->am_fattr.na_mtime.nt_seconds = mp->am_stats.s_mtime = clocktime();
new_ttl(mp);
/*
* Update mtime of parent node
*/
if (mp->am_parent && mp->am_parent->am_mnt)
mp->am_parent->am_fattr.na_mtime.nt_seconds = mp->am_stats.s_mtime;
/*
* This is ugly, but essentially unavoidable
* Sublinks must be treated separately as type==link
* when the base type is different.
*/
if (mp->am_link && mp->am_mnt->mf_ops != &amfs_link_ops)
amfs_link_ops.mount_fs(mp, mp->am_mnt);
#ifdef HAVE_FS_AUTOFS
if (mp->am_flags & AMF_AUTOFS)
autofs_mount_succeeded(mp);
else
#endif /* HAVE_FS_AUTOFS */
/*
* Now, if we can, do a reply to our NFS client here
* to speed things up.
*/
nfs_quick_reply(mp, 0);
/*
* Update stats
*/
amd_stats.d_mok++;
}
void
am_mounted(am_node *mp)
{
int notimeout = 0; /* assume normal timeouts initially */
mntfs *mf = mp->am_al->al_mnt;
/*
* This is the parent mntfs which does the mf->mf_fo (am_opts type), and
* we're passing TRUE here to tell mf_mounted to actually free the
* am_opts. See a related comment in mf_mounted().
*/
mf_mounted(mf, TRUE);
#ifdef HAVE_FS_AUTOFS
if (mf->mf_flags & MFF_IS_AUTOFS)
autofs_mounted(mp);
#endif /* HAVE_FS_AUTOFS */
/*
* Patch up path for direct mounts
*/
if (mp->am_parent && mp->am_parent->am_al->al_mnt->mf_fsflags & FS_DIRECT)
mp->am_path = str3cat(mp->am_path, mp->am_parent->am_path, "/", ".");
/*
* Check whether this mount should be cached permanently or not,
* and handle user-requested timeouts.
*/
/* first check if file system was set to never timeout */
if (mf->mf_fsflags & FS_NOTIMEOUT)
notimeout = 1;
/* next, alter that decision by map flags */
if (mf->mf_mopts) {
mntent_t mnt;
mnt.mnt_opts = mf->mf_mopts;
/* umount option: user wants to unmount this entry */
if (amu_hasmntopt(&mnt, "unmount") || amu_hasmntopt(&mnt, "umount"))
notimeout = 0;
/* noumount option: user does NOT want to unmount this entry */
if (amu_hasmntopt(&mnt, "nounmount") || amu_hasmntopt(&mnt, "noumount"))
notimeout = 1;
/* utimeout=N option: user wants to unmount this option AND set timeout */
if ((mp->am_timeo = hasmntval(&mnt, "utimeout")) == 0)
mp->am_timeo = gopt.am_timeo; /* otherwise use default timeout */
else
notimeout = 0;
/* special case: don't try to unmount "/" (it can never succeed) */
if (mf->mf_mount[0] == '/' && mf->mf_mount[1] == '\0')
notimeout = 1;
}
/* finally set actual flags */
if (notimeout) {
mp->am_flags |= AMF_NOTIMEOUT;
plog(XLOG_INFO, "%s set to never timeout", mp->am_path);
} else {
mp->am_flags &= ~AMF_NOTIMEOUT;
plog(XLOG_INFO, "%s set to timeout in %d seconds", mp->am_path, mp->am_timeo);
}
/*
* If this node is a symlink then
* compute the length of the returned string.
*/
if (mp->am_fattr.na_type == NFLNK)
mp->am_fattr.na_size = strlen(mp->am_link ? mp->am_link : mf->mf_mount);
/*
* Record mount time, and update am_stats at the same time.
*/
mp->am_stats.s_mtime = clocktime(&mp->am_fattr.na_mtime);
new_ttl(mp);
/*
* Update mtime of parent node (copying "struct nfstime" in '=' below)
*/
if (mp->am_parent && mp->am_parent->am_al->al_mnt)
mp->am_parent->am_fattr.na_mtime = mp->am_fattr.na_mtime;
/*
* This is ugly, but essentially unavoidable
* Sublinks must be treated separately as type==link
* when the base type is different.
*/
if (mp->am_link && mf->mf_ops != &amfs_link_ops)
amfs_link_ops.mount_fs(mp, mf);
/*
* Now, if we can, do a reply to our client here
* to speed things up.
*/
#ifdef HAVE_FS_AUTOFS
if (mp->am_flags & AMF_AUTOFS)
autofs_mount_succeeded(mp);
else
#endif /* HAVE_FS_AUTOFS */
nfs_quick_reply(mp, 0);
/*
* Update stats
*/
amd_stats.d_mok++;
}
