Commit 682a0bc5 authored Jul 15, 2023 by Qu Wenruo Committed by David Sterba Aug 21, 2023

btrfs: copy all pages at once at the end of btrfs_clone_extent_buffer()



btrfs_clone_extent_buffer() calls copy_page() at each iteration but we
can copy all pages at the end in one go if there were no errors.
This would make later conversion to folios easier.

Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent 54948681

fs/btrfs/extent_io.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -3239,8 +3239,8 @@ struct extent_buffer btrfs_clone_extent_buffer(const struct extent_buffer src)
		return NULL;
		}
		WARN_ON(PageDirty(p));
		copy_page(page_address(p), page_address(src->pages[i]));
		}
		copy_extent_buffer_full(new, src);
		set_extent_buffer_uptodate(new);

		return new;