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| author | Philipp Reisner <philipp.reisner@linbit.com> | 2010-07-06 11:14:00 +0200 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2010-10-14 18:38:14 +0200 |
| commit | 778f271dfe7a7173c0bae2d6cde8d9bd1533e668 (patch) | |
| tree | 1c057622152bd652102749b488653bff8be24c2a /drivers/block/drbd/drbd_receiver.c | |
| parent | drbd: New sync_param packet, that includes the parameters of the new controller (diff) | |
| download | linux-778f271dfe7a7173c0bae2d6cde8d9bd1533e668.tar.xz linux-778f271dfe7a7173c0bae2d6cde8d9bd1533e668.zip | |
drbd: The new, smarter resync speed controller
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_receiver.c')
| -rw-r--r-- | drivers/block/drbd/drbd_receiver.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 34bea972f734..5f80b22e711d 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1640,6 +1640,8 @@ static int receive_RSDataReply(struct drbd_conf *mdev, struct p_header *h) drbd_send_ack_dp(mdev, P_NEG_ACK, p); } + atomic_add(data_size >> 9, &mdev->rs_sect_in); + return ok; } @@ -2810,6 +2812,8 @@ static int receive_SyncParam(struct drbd_conf *mdev, struct p_header *h) struct crypto_hash *verify_tfm = NULL; struct crypto_hash *csums_tfm = NULL; const int apv = mdev->agreed_pro_version; + int *rs_plan_s = NULL; + int fifo_size = 0; exp_max_sz = apv <= 87 ? sizeof(struct p_rs_param) : apv == 88 ? sizeof(struct p_rs_param) @@ -2904,6 +2908,15 @@ static int receive_SyncParam(struct drbd_conf *mdev, struct p_header *h) mdev->sync_conf.c_delay_target = be32_to_cpu(p->c_delay_target); mdev->sync_conf.c_fill_target = be32_to_cpu(p->c_fill_target); mdev->sync_conf.c_max_rate = be32_to_cpu(p->c_max_rate); + + fifo_size = (mdev->sync_conf.c_plan_ahead * 10 * SLEEP_TIME) / HZ; + if (fifo_size != mdev->rs_plan_s.size && fifo_size > 0) { + rs_plan_s = kzalloc(sizeof(int) * fifo_size, GFP_KERNEL); + if (!rs_plan_s) { + dev_err(DEV, "kmalloc of fifo_buffer failed"); + goto disconnect; + } + } } spin_lock(&mdev->peer_seq_lock); @@ -2922,6 +2935,12 @@ static int receive_SyncParam(struct drbd_conf *mdev, struct p_header *h) mdev->csums_tfm = csums_tfm; dev_info(DEV, "using csums-alg: \"%s\"\n", p->csums_alg); } + if (fifo_size != mdev->rs_plan_s.size) { + kfree(mdev->rs_plan_s.values); + mdev->rs_plan_s.values = rs_plan_s; + mdev->rs_plan_s.size = fifo_size; + mdev->rs_planed = 0; + } spin_unlock(&mdev->peer_seq_lock); } @@ -4202,6 +4221,7 @@ static int got_IsInSync(struct drbd_conf *mdev, struct p_header *h) /* rs_same_csums is supposed to count in units of BM_BLOCK_SIZE */ mdev->rs_same_csum += (blksize >> BM_BLOCK_SHIFT); dec_rs_pending(mdev); + atomic_add(blksize >> 9, &mdev->rs_sect_in); return TRUE; } |