nilfs2: convert nilfs_segctor_prepare_write to use folios

Use the new folio APIs, saving 17 hidden calls to compound_head().

Link: https://lkml.kernel.org/r/20231114084436.2755-11-konishi.ryusuke@gmail.com
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
1 file changed