f2fs: Use folio_next_pos()

Matthew Wilcox (Oracle) · brauner · commit 4fcafa30b70a · 2025-10-31T13:11:38.000+01:00
This is one instruction more efficient than open-coding folio_pos() + folio_size(). It's the equivalent of (x + y) << z rather than x << z + y << z. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Link: https://patch.msgid.link/20251024170822.1427218-6-willy@infradead.org Reviewed-by: Chao Yu <chao@kernel.org> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: Chao Yu <chao@kernel.org> Cc: linux-f2fs-devel@lists.sourceforge.net Signed-off-by: Christian Brauner <brauner@kernel.org>
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
@@ -1329,7 +1329,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
 	}
 
 	folio = page_folio(cc->rpages[last_index]);
-	psize = folio_pos(folio) + folio_size(folio);
+	psize = folio_next_pos(folio);
 
 	err = f2fs_get_node_info(fio.sbi, dn.nid, &ni, false);
 	if (err)

Original file line number	Diff line number	Diff line change
`@@ -1329,7 +1329,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,`
`1329`	`1329`	`}`
`1330`	`1330`
`1331`	`1331`	`folio = page_folio(cc->rpages[last_index]);`
`1332`		`- psize = folio_pos(folio) + folio_size(folio);`
	`1332`	`+ psize = folio_next_pos(folio);`
`1333`	`1333`
`1334`	`1334`	`err = f2fs_get_node_info(fio.sbi, dn.nid, &ni, false);`
`1335`	`1335`	`if (err)`