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Commit fba1acf9 authored by David Sterba's avatar David Sterba
Browse files

btrfs: use specialized page copying helpers in btrfs_clone_extent_buffer 



The copy_page is usually optimized and can be faster than memcpy.

Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent d24ee97b

fs/btrfs/extent_io.c

+1 −1
Original line number Diff line number Diff line
@@ -4720,9 +4720,9 @@ struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src) 
		WARN_ON(PageDirty(p));

		SetPageUptodate(p);

		new->pages[i] = p;

		copy_page(page_address(p), page_address(src->pages[i]));

	}



	copy_extent_buffer(new, src, 0, 0, src->len);

	set_bit(EXTENT_BUFFER_UPTODATE, &new->bflags);

	set_bit(EXTENT_BUFFER_DUMMY, &new->bflags);