struct ceph_cap_flush *ceph_alloc_cap_flush(void)
{
- return kmem_cache_alloc(ceph_cap_flush_cachep, GFP_KERNEL);
+ struct ceph_cap_flush *cf;
+
+ cf = kmem_cache_alloc(ceph_cap_flush_cachep, GFP_KERNEL);
+ cf->is_capsnap = false;
+ return cf;
}
void ceph_free_cap_flush(struct ceph_cap_flush *cf)
prev->wake = true;
wake = false;
}
- list_del(&cf->g_list);
+ list_del_init(&cf->g_list);
return wake;
}
prev->wake = true;
wake = false;
}
- list_del(&cf->i_list);
+ list_del_init(&cf->i_list);
return wake;
}
ci->i_ceph_flags &= ~CEPH_I_KICK_FLUSH;
list_for_each_entry_reverse(cf, &ci->i_cap_flush_list, i_list) {
- if (!cf->caps) {
+ if (cf->is_capsnap) {
last_snap_flush = cf->tid;
break;
}
first_tid = cf->tid + 1;
- if (cf->caps) {
+ if (!cf->is_capsnap) {
struct cap_msg_args arg;
dout("kick_flushing_caps %p cap %p tid %llu %s\n",
cleaned = cf->caps;
/* Is this a capsnap? */
- if (cf->caps == 0)
+ if (cf->is_capsnap)
continue;
if (cf->tid <= flush_tid) {
while (!list_empty(&to_remove)) {
cf = list_first_entry(&to_remove,
struct ceph_cap_flush, i_list);
- list_del(&cf->i_list);
- ceph_free_cap_flush(cf);
+ list_del_init(&cf->i_list);
+ if (!cf->is_capsnap)
+ ceph_free_cap_flush(cf);
}
if (wake_ci)
spin_lock(&mdsc->cap_dirty_lock);
list_for_each_entry(cf, &to_remove, i_list)
- list_del(&cf->g_list);
+ list_del_init(&cf->g_list);
if (!list_empty(&ci->i_dirty_item)) {
pr_warn_ratelimited(
struct ceph_cap_flush *cf;
cf = list_first_entry(&to_remove,
struct ceph_cap_flush, i_list);
- list_del(&cf->i_list);
- ceph_free_cap_flush(cf);
+ list_del_init(&cf->i_list);
+ if (!cf->is_capsnap)
+ ceph_free_cap_flush(cf);
}
wake_up_all(&ci->i_cap_wq);
pr_err("ENOMEM allocating ceph_cap_snap on %p\n", inode);
return;
}
+ capsnap->cap_flush.is_capsnap = true;
+ INIT_LIST_HEAD(&capsnap->cap_flush.i_list);
+ INIT_LIST_HEAD(&capsnap->cap_flush.g_list);
spin_lock(&ci->i_ceph_lock);
used = __ceph_caps_used(ci);
struct ceph_cap_flush {
u64 tid;
- int caps; /* 0 means capsnap */
+ int caps;
bool wake; /* wake up flush waiters when finish ? */
+ bool is_capsnap; /* true means capsnap */
struct list_head g_list; // global
struct list_head i_list; // per inode
};