get_quota_realm() enters infinite loop if quota inode has no caps.
This can happen after client gets evicted.
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Luis Henriques <lhenriques@suse.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
return NULL;
mutex_lock(&qri->mutex);
return NULL;
mutex_lock(&qri->mutex);
+ if (qri->inode && ceph_is_any_caps(qri->inode)) {
/* A request has already returned the inode */
mutex_unlock(&qri->mutex);
return qri->inode;
/* A request has already returned the inode */
mutex_unlock(&qri->mutex);
return qri->inode;
mutex_unlock(&qri->mutex);
return NULL;
}
mutex_unlock(&qri->mutex);
return NULL;
}
- in = ceph_lookup_inode(sb, realm->ino);
+ if (qri->inode) {
+ /* get caps */
+ int ret = __ceph_do_getattr(qri->inode, NULL,
+ CEPH_STAT_CAP_INODE, true);
+ if (ret >= 0)
+ in = qri->inode;
+ else
+ in = ERR_PTR(ret);
+ } else {
+ in = ceph_lookup_inode(sb, realm->ino);
+ }
+
if (IS_ERR(in)) {
pr_warn("Can't lookup inode %llx (err: %ld)\n",
realm->ino, PTR_ERR(in));
if (IS_ERR(in)) {
pr_warn("Can't lookup inode %llx (err: %ld)\n",
realm->ino, PTR_ERR(in));