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path: root/drivers/block/drbd/drbd_actlog.c
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Diffstat (limited to 'drivers/block/drbd/drbd_actlog.c')
-rw-r--r--drivers/block/drbd/drbd_actlog.c41
1 files changed, 20 insertions, 21 deletions
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index 9400845d602..ac04ef97eac 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -965,29 +965,30 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size,
* ok, (capacity & 7) != 0 sometimes, but who cares...
* we count rs_{total,left} in bits, not sectors.
*/
- spin_lock_irqsave(&mdev->al_lock, flags);
count = drbd_bm_clear_bits(mdev, sbnr, ebnr);
- if (count) {
- /* we need the lock for drbd_try_clear_on_disk_bm */
- if (jiffies - mdev->rs_mark_time > HZ*10) {
- /* should be rolling marks,
- * but we estimate only anyways. */
- if (mdev->rs_mark_left != drbd_bm_total_weight(mdev) &&
+ if (count && get_ldev(mdev)) {
+ unsigned long now = jiffies;
+ unsigned long last = mdev->rs_mark_time[mdev->rs_last_mark];
+ int next = (mdev->rs_last_mark + 1) % DRBD_SYNC_MARKS;
+ if (time_after_eq(now, last + DRBD_SYNC_MARK_STEP)) {
+ unsigned long tw = drbd_bm_total_weight(mdev);
+ if (mdev->rs_mark_left[mdev->rs_last_mark] != tw &&
mdev->state.conn != C_PAUSED_SYNC_T &&
mdev->state.conn != C_PAUSED_SYNC_S) {
- mdev->rs_mark_time = jiffies;
- mdev->rs_mark_left = drbd_bm_total_weight(mdev);
+ mdev->rs_mark_time[next] = now;
+ mdev->rs_mark_left[next] = tw;
+ mdev->rs_last_mark = next;
}
}
- if (get_ldev(mdev)) {
- drbd_try_clear_on_disk_bm(mdev, sector, count, TRUE);
- put_ldev(mdev);
- }
+ spin_lock_irqsave(&mdev->al_lock, flags);
+ drbd_try_clear_on_disk_bm(mdev, sector, count, TRUE);
+ spin_unlock_irqrestore(&mdev->al_lock, flags);
+
/* just wake_up unconditional now, various lc_chaged(),
* lc_put() in drbd_try_clear_on_disk_bm(). */
wake_up = 1;
+ put_ldev(mdev);
}
- spin_unlock_irqrestore(&mdev->al_lock, flags);
if (wake_up)
wake_up(&mdev->al_wait);
}
@@ -1118,7 +1119,7 @@ static int _is_in_al(struct drbd_conf *mdev, unsigned int enr)
* @mdev: DRBD device.
* @sector: The sector number.
*
- * This functions sleeps on al_wait. Returns 1 on success, 0 if interrupted.
+ * This functions sleeps on al_wait. Returns 0 on success, -EINTR if interrupted.
*/
int drbd_rs_begin_io(struct drbd_conf *mdev, sector_t sector)
{
@@ -1129,10 +1130,10 @@ int drbd_rs_begin_io(struct drbd_conf *mdev, sector_t sector)
sig = wait_event_interruptible(mdev->al_wait,
(bm_ext = _bme_get(mdev, enr)));
if (sig)
- return 0;
+ return -EINTR;
if (test_bit(BME_LOCKED, &bm_ext->flags))
- return 1;
+ return 0;
for (i = 0; i < AL_EXT_PER_BM_SECT; i++) {
sig = wait_event_interruptible(mdev->al_wait,
@@ -1145,13 +1146,11 @@ int drbd_rs_begin_io(struct drbd_conf *mdev, sector_t sector)
wake_up(&mdev->al_wait);
}
spin_unlock_irq(&mdev->al_lock);
- return 0;
+ return -EINTR;
}
}
-
set_bit(BME_LOCKED, &bm_ext->flags);
-
- return 1;
+ return 0;
}
/**