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authorJiri Kosina <jkosina@suse.cz>2013-12-19 15:08:03 +0100
committerJiri Kosina <jkosina@suse.cz>2013-12-19 15:08:32 +0100
commite23c34bb41da65f354fb7eee04300c56ee48f60c (patch)
tree549fbe449d55273b81ef104a9755109bf4ae7817 /drivers/md/raid1.h
parentb481c2cb3534c85dca625973b33eba15f9af3e4c (diff)
parent319e2e3f63c348a9b66db4667efa73178e18b17d (diff)
Merge branch 'master' into for-next
Sync with Linus' tree to be able to apply fixes on top of newer things in tree (efi-stub). Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/md/raid1.h')
-rw-r--r--drivers/md/raid1.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h
index 0ff3715fb7eb..9bebca7bff2f 100644
--- a/drivers/md/raid1.h
+++ b/drivers/md/raid1.h
@@ -41,6 +41,19 @@ struct r1conf {
*/
sector_t next_resync;
+ /* When raid1 starts resync, we divide array into four partitions
+ * |---------|--------------|---------------------|-------------|
+ * next_resync start_next_window end_window
+ * start_next_window = next_resync + NEXT_NORMALIO_DISTANCE
+ * end_window = start_next_window + NEXT_NORMALIO_DISTANCE
+ * current_window_requests means the count of normalIO between
+ * start_next_window and end_window.
+ * next_window_requests means the count of normalIO after end_window.
+ * */
+ sector_t start_next_window;
+ int current_window_requests;
+ int next_window_requests;
+
spinlock_t device_lock;
/* list of 'struct r1bio' that need to be processed by raid1d,
@@ -65,6 +78,7 @@ struct r1conf {
int nr_waiting;
int nr_queued;
int barrier;
+ int array_frozen;
/* Set to 1 if a full sync is needed, (fresh device added).
* Cleared when a sync completes.
@@ -111,6 +125,7 @@ struct r1bio {
* in this BehindIO request
*/
sector_t sector;
+ sector_t start_next_window;
int sectors;
unsigned long state;
struct mddev *mddev;