linux-2.6.33/__filemap_fdatawrite_range() の変更点

• 追加された行はこの色です。
• 削除された行はこの色です。
• linux-2.6.33/__filemap_fdatawrite_range() へ行く。
• linux-2.6.33/__filemap_fdatawrite_range() の差分を削除

*参照元 [#g3744a33]
#backlinks

*説明 [#r087ef8d]
-パス: [[linux-2.6.33/mm/filemap.c]]

-FIXME: これは何？
--説明


**引数 [#q8306202]
-struct address_space *mapping
--
--[[linux-2.6.33/address_space]]
-loff_t start
--
-loff_t end
--
-int sync_mode
--


**返り値 [#vb89b021]
-int
--


**参考 [#aa1c0243]


*実装 [#s5b09e2a]
 /**
  * __filemap_fdatawrite_range - start writeback on mapping dirty pages in range
  * @mapping:	address space structure to write
  * @start:	offset in bytes where the range starts
  * @end:	offset in bytes where the range ends (inclusive)
  * @sync_mode:	enable synchronous operation
  *
  * Start writeback against all of a mapping's dirty pages that lie
  * within the byte offsets <start, end> inclusive.
  *
  * If sync_mode is WB_SYNC_ALL then this is a "data integrity" operation, as
  * opposed to a regular memory cleansing writeback.  The difference between
  * these two operations is that if a dirty page/buffer is encountered, it must
  * be waited upon, and not just skipped over.
  */
 int __filemap_fdatawrite_range(struct address_space *mapping, loff_t start,
 				loff_t end, int sync_mode)
 {
 	int ret;
 	struct writeback_control wbc = {
 		.sync_mode = sync_mode,
 		.nr_to_write = LONG_MAX,
 		.range_start = start,
 		.range_end = end,
 	};
 
-
--[[linux-2.6.33/writeback_control]]

 	if (!mapping_cap_writeback_dirty(mapping))
 		return 0;
 
-
--[[linux-2.6.33/mapping_cap_writeback_dirty()]]

 	ret = do_writepages(mapping, &wbc);
-
--[[linux-2.6.33/do_writepages()]]

 	return ret;
 }


*コメント [#d2fb5357]