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-rw-r--r--include/linux/raid/raid5.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h
index b7b2653af7bb..6fa274aea2a0 100644
--- a/include/linux/raid/raid5.h
+++ b/include/linux/raid/raid5.h
@@ -135,6 +135,7 @@ struct stripe_head {
atomic_t count; /* nr of active thread/requests */
spinlock_t lock;
int bm_seq; /* sequence number for bitmap flushes */
+ int disks; /* disks in stripe */
struct r5dev {
struct bio req;
struct bio_vec vec;
@@ -174,6 +175,7 @@ struct stripe_head {
#define STRIPE_DELAYED 6
#define STRIPE_DEGRADED 7
#define STRIPE_BIT_DELAY 8
+#define STRIPE_EXPANDING 9
/*
* Plugging:
@@ -211,6 +213,10 @@ struct raid5_private_data {
int raid_disks, working_disks, failed_disks;
int max_nr_stripes;
+ /* used during an expand */
+ sector_t expand_progress; /* MaxSector when no expand happening */
+ int previous_raid_disks;
+
struct list_head handle_list; /* stripes needing handling */
struct list_head delayed_list; /* stripes that have plugged requests */
struct list_head bitmap_list; /* stripes delaying awaiting bitmap update */