1 files changed, 41 insertions, 8 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 178df4c67de4..e4966444811b 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1844,10 +1844,14 @@ again:
                 printk(KERN_ERR "no space left, need %llu, %llu delalloc bytes"
                        ", %llu bytes_used, %llu bytes_reserved, "
                        "%llu bytes_pinned, %llu bytes_readonly, %llu may use"
-                       "%llu total\n", bytes, data_sinfo->bytes_delalloc,
-                       data_sinfo->bytes_used, data_sinfo->bytes_reserved,
-                       data_sinfo->bytes_pinned, data_sinfo->bytes_readonly,
-                       data_sinfo->bytes_may_use, data_sinfo->total_bytes);
+                       "%llu total\n", (unsigned long long)bytes,
+                       (unsigned long long)data_sinfo->bytes_delalloc,
+                       (unsigned long long)data_sinfo->bytes_used,
+                       (unsigned long long)data_sinfo->bytes_reserved,
+                       (unsigned long long)data_sinfo->bytes_pinned,
+                       (unsigned long long)data_sinfo->bytes_readonly,
+                       (unsigned long long)data_sinfo->bytes_may_use,
+                       (unsigned long long)data_sinfo->total_bytes);
                 return -ENOSPC;
         }
         data_sinfo->bytes_may_use += bytes;
@@ -1918,15 +1922,29 @@ void btrfs_delalloc_free_space(struct btrfs_root *root, struct inode *inode,
         spin_unlock(&info->lock);
 }
 
+static void force_metadata_allocation(struct btrfs_fs_info *info)
+{
+        struct list_head *head = &info->space_info;
+        struct btrfs_space_info *found;
+
+        rcu_read_lock();
+        list_for_each_entry_rcu(found, head, list) {
+                if (found->flags & BTRFS_BLOCK_GROUP_METADATA)
+                        found->force_alloc = 1;
+        }
+        rcu_read_unlock();
+}
+
 static int do_chunk_alloc(struct btrfs_trans_handle *trans,
                           struct btrfs_root *extent_root, u64 alloc_bytes,
                           u64 flags, int force)
 {
         struct btrfs_space_info *space_info;
+        struct btrfs_fs_info *fs_info = extent_root->fs_info;
         u64 thresh;
         int ret = 0;
 
-        mutex_lock(&extent_root->fs_info->chunk_mutex);
+        mutex_lock(&fs_info->chunk_mutex);
 
         flags = btrfs_reduce_alloc_profile(extent_root, flags);
 
@@ -1958,6 +1976,18 @@ static int do_chunk_alloc(struct btrfs_trans_handle *trans,
         }
         spin_unlock(&space_info->lock);
 
+        /*
+         * if we're doing a data chunk, go ahead and make sure that
+         * we keep a reasonable number of metadata chunks allocated in the
+         * FS as well.
+         */
+        if (flags & BTRFS_BLOCK_GROUP_DATA) {
+                fs_info->data_chunk_allocations++;
+                if (!(fs_info->data_chunk_allocations %
+                      fs_info->metadata_ratio))
+                        force_metadata_allocation(fs_info);
+        }
+
         ret = btrfs_alloc_chunk(trans, extent_root, flags);
         if (ret)
                 space_info->full = 1;
@@ -2798,9 +2828,12 @@ static void dump_space_info(struct btrfs_space_info *info, u64 bytes)
                                     info->bytes_pinned - info->bytes_reserved),
                (info->full) ? "" : "not ");
         printk(KERN_INFO "space_info total=%llu, pinned=%llu, delalloc=%llu,"
-               " may_use=%llu, used=%llu\n", info->total_bytes,
-               info->bytes_pinned, info->bytes_delalloc, info->bytes_may_use,
-               info->bytes_used);
+               " may_use=%llu, used=%llu\n",
+               (unsigned long long)info->total_bytes,
+               (unsigned long long)info->bytes_pinned,
+               (unsigned long long)info->bytes_delalloc,
+               (unsigned long long)info->bytes_may_use,
+               (unsigned long long)info->bytes_used);
 
         down_read(&info->groups_sem);
         list_for_each_entry(cache, &info->block_groups, list) {