1 files changed, 14 insertions, 12 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 0f27f7b48804..2846cebc9427 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3111,9 +3111,10 @@ static int maybe_allocate_chunk(struct btrfs_trans_handle *trans,
  * shrink metadata reservation for delalloc
  */
 static int shrink_delalloc(struct btrfs_trans_handle *trans,
-                           struct btrfs_root *root, u64 to_reclaim)
+                           struct btrfs_root *root, u64 to_reclaim, int sync)
 {
         struct btrfs_block_rsv *block_rsv;
+        struct btrfs_space_info *space_info;
         u64 reserved;
         u64 max_reclaim;
         u64 reclaimed = 0;
@@ -3122,9 +3123,10 @@ static int shrink_delalloc(struct btrfs_trans_handle *trans,
         int ret;
 
         block_rsv = &root->fs_info->delalloc_block_rsv;
-        spin_lock(&block_rsv->lock);
-        reserved = block_rsv->reserved;
-        spin_unlock(&block_rsv->lock);
+        space_info = block_rsv->space_info;
+        spin_lock(&space_info->lock);
+        reserved = space_info->bytes_reserved;
+        spin_unlock(&space_info->lock);
 
         if (reserved == 0)
                 return 0;
@@ -3132,7 +3134,7 @@ static int shrink_delalloc(struct btrfs_trans_handle *trans,
         max_reclaim = min(reserved, to_reclaim);
 
         while (1) {
-                ret = btrfs_start_one_delalloc_inode(root, trans ? 1 : 0);
+                ret = btrfs_start_one_delalloc_inode(root, trans ? 1 : 0, sync);
                 if (!ret) {
                         if (no_reclaim > 2)
                                 break;
@@ -3147,11 +3149,11 @@ static int shrink_delalloc(struct btrfs_trans_handle *trans,
                         pause = 1;
                 }
 
-                spin_lock(&block_rsv->lock);
-                if (reserved > block_rsv->reserved)
-                        reclaimed = reserved - block_rsv->reserved;
-                reserved = block_rsv->reserved;
-                spin_unlock(&block_rsv->lock);
+                spin_lock(&space_info->lock);
+                if (reserved > space_info->bytes_reserved)
+                        reclaimed += reserved - space_info->bytes_reserved;
+                reserved = space_info->bytes_reserved;
+                spin_unlock(&space_info->lock);
 
                 if (reserved == 0 || reclaimed >= max_reclaim)
                         break;
@@ -3180,7 +3182,7 @@ static int should_retry_reserve(struct btrfs_trans_handle *trans,
         if (trans && trans->transaction->in_commit)
                 return -ENOSPC;
 
-        ret = shrink_delalloc(trans, root, num_bytes);
+        ret = shrink_delalloc(trans, root, num_bytes, 0);
         if (ret)
                 return ret;
 
@@ -3729,7 +3731,7 @@ again:
         block_rsv_add_bytes(block_rsv, to_reserve, 1);
 
         if (block_rsv->size > 512 * 1024 * 1024)
-                shrink_delalloc(NULL, root, to_reserve);
+                shrink_delalloc(NULL, root, to_reserve, 0);
 
         return 0;
 }