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Date: Wed, 25 Nov 2015 11:53:39 +0100
From: Philipp Reisner <philipp.reisner@...bit.com>
To: Jens Axboe <axboe@...com>, linux-kernel@...r.kernel.org
Cc: drbd-dev@...ts.linbit.com
Subject: [PATCH 06/38] drbd: drbd_adm_attach(): Add missing drbd_resync_after_changed()
From: Andreas Gruenbacher <agruen@...bit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@...bit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@...bit.com>
---
drivers/block/drbd/drbd_nl.c | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index dfc1799..94e380f 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1541,9 +1541,8 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
write_lock_irq(&global_state_lock);
retcode = drbd_resync_after_valid(device, new_disk_conf->resync_after);
- write_unlock_irq(&global_state_lock);
if (retcode != NO_ERROR)
- goto fail;
+ goto fail_unlock;
rcu_read_lock();
nc = rcu_dereference(connection->net_conf);
@@ -1551,7 +1550,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
if (new_disk_conf->fencing == FP_STONITH && nc->wire_protocol == DRBD_PROT_A) {
rcu_read_unlock();
retcode = ERR_STONITH_AND_PROT_A;
- goto fail;
+ goto fail_unlock;
}
}
rcu_read_unlock();
@@ -1562,7 +1561,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
drbd_err(device, "open(\"%s\") failed with %ld\n", new_disk_conf->backing_dev,
PTR_ERR(bdev));
retcode = ERR_OPEN_DISK;
- goto fail;
+ goto fail_unlock;
}
nbc->backing_bdev = bdev;
@@ -1582,7 +1581,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
drbd_err(device, "open(\"%s\") failed with %ld\n", new_disk_conf->meta_dev,
PTR_ERR(bdev));
retcode = ERR_OPEN_MD_DISK;
- goto fail;
+ goto fail_unlock;
}
nbc->md_bdev = bdev;
@@ -1590,7 +1589,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
(new_disk_conf->meta_dev_idx == DRBD_MD_INDEX_INTERNAL ||
new_disk_conf->meta_dev_idx == DRBD_MD_INDEX_FLEX_INT)) {
retcode = ERR_MD_IDX_INVALID;
- goto fail;
+ goto fail_unlock;
}
resync_lru = lc_create("resync", drbd_bm_ext_cache,
@@ -1598,14 +1597,14 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
offsetof(struct bm_extent, lce));
if (!resync_lru) {
retcode = ERR_NOMEM;
- goto fail;
+ goto fail_unlock;
}
/* Read our meta data super block early.
* This also sets other on-disk offsets. */
retcode = drbd_md_read(device, nbc);
if (retcode != NO_ERROR)
- goto fail;
+ goto fail_unlock;
if (new_disk_conf->al_extents < DRBD_AL_EXTENTS_MIN)
new_disk_conf->al_extents = DRBD_AL_EXTENTS_MIN;
@@ -1617,7 +1616,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
(unsigned long long) drbd_get_max_capacity(nbc),
(unsigned long long) new_disk_conf->disk_size);
retcode = ERR_DISK_TOO_SMALL;
- goto fail;
+ goto fail_unlock;
}
if (new_disk_conf->meta_dev_idx < 0) {
@@ -1634,7 +1633,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
drbd_warn(device, "refusing attach: md-device too small, "
"at least %llu sectors needed for this meta-disk type\n",
(unsigned long long) min_md_device_sectors);
- goto fail;
+ goto fail_unlock;
}
/* Make sure the new disk is big enough
@@ -1642,7 +1641,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
if (drbd_get_max_capacity(nbc) <
drbd_get_capacity(device->this_bdev)) {
retcode = ERR_DISK_TOO_SMALL;
- goto fail;
+ goto fail_unlock;
}
nbc->known_size = drbd_get_capacity(nbc->backing_bdev);
@@ -1672,7 +1671,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
retcode = rv; /* FIXME: Type mismatch. */
drbd_resume_io(device);
if (rv < SS_SUCCESS)
- goto fail;
+ goto fail_unlock;
if (!get_ldev_if_state(device, D_ATTACHING))
goto force_diskless;
@@ -1727,6 +1726,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
new_disk_conf = NULL;
new_plan = NULL;
+ drbd_resync_after_changed(device);
drbd_bump_write_ordering(device->resource, device->ldev, WO_BDEV_FLUSH);
if (drbd_md_test_flag(device->ldev, MDF_CRASHED_PRIMARY))
@@ -1850,6 +1850,8 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
if (rv < SS_SUCCESS)
goto force_diskless_dec;
+ write_unlock(&global_state_lock);
+
mod_timer(&device->request_timer, jiffies + HZ);
if (device->state.role == R_PRIMARY)
@@ -1872,6 +1874,8 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
force_diskless:
drbd_force_state(device, NS(disk, D_DISKLESS));
drbd_md_sync(device);
+ fail_unlock:
+ write_unlock_irq(&global_state_lock);
fail:
conn_reconfig_done(connection);
if (nbc) {
--
1.9.1
--
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