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md/raid5: prepare for allowing reshape to change layout

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Add prev_algo to raid5_conf_t along the same lines as prev_chunk
and previous_raid_disks.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown
2009-03-31 15:20:22 +11:00
parent 784052ecc6
commit e183eaedd5
2 changed files with 20 additions and 14 deletions
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2
drivers/md/raid5.h
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@@ -350,7 +350,7 @@ struct raid5_private_data {
*/
sector_t reshape_safe;
int previous_raid_disks;
int prev_chunk;
int prev_chunk, prev_algo;
short generation; /* increments with every reshape */
struct list_head handle_list; /* stripes needing handling */