NeilBrown 2ca68f5ed7 md/raid1: store behind-write pages in bi_vecs.
When performing write-behind we allocate pages to store the data
during write.
Previously we just keep a list of pages.  Now we keep a list of
bi_vec which includes offset and size.
This means that the r1bio has complete information to create a new
bio which will be needed for retrying after write errors.

Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
2011-07-28 11:32:10 +10:00
..
2011-07-27 11:00:37 +10:00
2011-07-27 11:00:37 +10:00
2011-03-24 13:54:24 +00:00
2011-05-29 13:03:09 +01:00
2010-08-12 04:14:11 +01:00
2011-05-29 13:03:09 +01:00
2011-03-31 11:26:23 -03:00
2011-03-24 13:54:35 +00:00
2007-10-20 02:01:26 +01:00
2010-08-12 04:14:12 +01:00
2011-03-31 11:26:23 -03:00
2011-03-24 13:54:24 +00:00
2011-03-24 13:54:24 +00:00