diff options
| -rw-r--r-- | fs/btrfs/extent_map.c | 9 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 1 |
2 files changed, 8 insertions, 2 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 0d1e59a86e49..a0dff34dd437 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -1070,6 +1070,7 @@ u64 find_lock_delalloc_range(struct extent_map_tree *tree, search_again: node = tree_search(&tree->state, cur_start); if (!node || IS_ERR(node)) { + *end = (u64)-1; goto out; } @@ -1079,6 +1080,8 @@ search_again: goto out; } if (!(state->state & EXTENT_DELALLOC)) { + if (!found) + *end = state->end; goto out; } if (!found) { @@ -1841,8 +1844,10 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, nr_delalloc = find_lock_delalloc_range(tree, &delalloc_start, &delalloc_end, 128 * 1024 * 1024); - if (nr_delalloc <= 0) - break; + if (nr_delalloc == 0) { + delalloc_start = delalloc_end + 1; + continue; + } tree->ops->fill_delalloc(inode, delalloc_start, delalloc_end); clear_extent_bit(tree, delalloc_start, diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 1e725a48467c..55b2e1426024 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -798,6 +798,7 @@ static int btrfs_cow_one_page(struct inode *inode, struct page *page, u64 page_start = (u64)page->index << PAGE_CACHE_SHIFT; u64 page_end = page_start + PAGE_CACHE_SIZE - 1; + WARN_ON(!PageLocked(page)); set_page_extent_mapped(page); lock_extent(em_tree, page_start, page_end, GFP_NOFS); |