| commit | e384e58549a2e9a83071ad80280c1a9053cfd84c | [log] [tgz] |
|---|---|---|
| author | NeilBrown <neilb@suse.de> | Tue Jun 01 19:37:34 2010 +1000 |
| committer | NeilBrown <neilb@suse.de> | Mon Jul 26 13:21:34 2010 +1000 |
| tree | 805619143612ddc8cc71a45dd4522393c23a576f | |
| parent | ef4256733506f2459a0c436b62267d22a3f0cec6 [diff] |
md/bitmap: prepare for storing write-intent-bitmap via dm-dirty-log. This allows md/raid5 to fully work as a dm target. Normally md uses a 'filemap' which contains a list of pages of bits each of which may be written separately. dm-log uses and all-or-nothing approach to writing the log, so when using a dm-log, ->filemap is NULL and the flags normally stored in filemap_attr are stored in ->logattrs instead. Signed-off-by: NeilBrown <neilb@suse.de>