diff options
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 42 |
1 files changed, 25 insertions, 17 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 253cb74..81fa75a 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1119,10 +1119,7 @@ static int flush_dirty_cache(struct inode *inode) } static void noinline_for_stack -cleanup_write_cache_enospc(struct inode *inode, - struct btrfs_io_ctl *io_ctl, - struct extent_state **cached_state, - struct list_head *bitmap_list) +cleanup_bitmap_list(struct list_head *bitmap_list) { struct list_head *pos, *n; @@ -1131,6 +1128,14 @@ cleanup_write_cache_enospc(struct inode *inode, list_entry(pos, struct btrfs_free_space, list); list_del_init(&entry->list); } +} + +static void noinline_for_stack +cleanup_write_cache_enospc(struct inode *inode, + struct btrfs_io_ctl *io_ctl, + struct extent_state **cached_state, + struct list_head *bitmap_list) +{ io_ctl_drop_pages(io_ctl); unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0, i_size_read(inode) - 1, cached_state, @@ -1149,7 +1154,8 @@ int btrfs_wait_cache_io(struct btrfs_root *root, if (!inode) return 0; - root = root->fs_info->tree_root; + if (block_group) + root = root->fs_info->tree_root; /* Flush the dirty pages in the cache file. */ ret = flush_dirty_cache(inode); @@ -1265,11 +1271,8 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, ret = write_cache_extent_entries(io_ctl, ctl, block_group, &entries, &bitmaps, &bitmap_list); - spin_unlock(&ctl->tree_lock); - if (ret) { - mutex_unlock(&ctl->cache_writeout_mutex); - goto out_nospc; - } + if (ret) + goto out_nospc_locked; /* * Some spaces that are freed in the current transaction are pinned, @@ -1280,17 +1283,14 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, * the dirty list and redo it. No locking needed */ ret = write_pinned_extent_entries(root, block_group, io_ctl, &entries); - if (ret) { - mutex_unlock(&ctl->cache_writeout_mutex); - goto out_nospc; - } + if (ret) + goto out_nospc_locked; /* * At last, we write out all the bitmaps and keep cache_writeout_mutex * locked while doing it because a concurrent trim can be manipulating * or freeing the bitmap. */ - spin_lock(&ctl->tree_lock); ret = write_bitmap_entries(io_ctl, &bitmap_list); spin_unlock(&ctl->tree_lock); mutex_unlock(&ctl->cache_writeout_mutex); @@ -1343,6 +1343,11 @@ out: iput(inode); return ret; +out_nospc_locked: + cleanup_bitmap_list(&bitmap_list); + spin_unlock(&ctl->tree_lock); + mutex_unlock(&ctl->cache_writeout_mutex); + out_nospc: cleanup_write_cache_enospc(inode, io_ctl, &cached_state, &bitmap_list); @@ -3463,9 +3468,12 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root, if (!btrfs_test_opt(root, INODE_MAP_CACHE)) return 0; + memset(&io_ctl, 0, sizeof(io_ctl)); ret = __btrfs_write_out_cache(root, inode, ctl, NULL, &io_ctl, - trans, path, 0) || - btrfs_wait_cache_io(root, trans, NULL, &io_ctl, path, 0); + trans, path, 0); + if (!ret) + ret = btrfs_wait_cache_io(root, trans, NULL, &io_ctl, path, 0); + if (ret) { btrfs_delalloc_release_metadata(inode, inode->i_size); #ifdef DEBUG |
