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drbd: Converted drbd_nl_(net_conf|disconnect)() from mdev to tconn 

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner 2011-02-18 14:56:45 +01:00
parent 1aba4d7fcf
commit 80883197da
3 changed files with 63 additions and 61 deletions
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2
drivers/block/drbd/drbd_int.h
View File

@ -170,6 +170,7 @@ drbd_insert_fault(struct drbd_conf *mdev, unsigned int type) {
extern struct drbd_conf **minor_table;
extern struct ratelimit_state drbd_ratelimit_state;
extern struct list_head drbd_tconns;
/* on the wire */
enum drbd_packet {
@ -1474,6 +1475,7 @@ extern wait_queue_head_t drbd_pp_wait;
extern rwlock_t global_state_lock;
extern int conn_lowest_minor(struct drbd_tconn *tconn);
extern struct drbd_conf *drbd_new_device(unsigned int minor);
extern void drbd_free_mdev(struct drbd_conf *mdev);

2
drivers/block/drbd/drbd_main.c
View File

@ -615,7 +615,7 @@ char *drbd_task_to_thread_name(struct drbd_tconn *tconn, struct task_struct *tas
}
#ifdef CONFIG_SMP
static int conn_lowest_minor(struct drbd_tconn *tconn)
int conn_lowest_minor(struct drbd_tconn *tconn)
{
int minor = 0;
idr_get_next(&tconn->volumes, &minor);

120
drivers/block/drbd/drbd_nl.c
View File

@ -1326,7 +1326,7 @@ static int drbd_nl_detach(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
return 0;
}
static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
static int drbd_nl_net_conf(struct drbd_tconn *tconn, struct drbd_nl_cfg_req *nlp,
struct drbd_nl_cfg_reply *reply)
{
int i;
@ -1335,16 +1335,17 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
struct crypto_hash *tfm = NULL;
struct crypto_hash *integrity_w_tfm = NULL;
struct crypto_hash *integrity_r_tfm = NULL;
struct drbd_conf *odev;
struct drbd_conf *mdev;
char hmac_name[CRYPTO_MAX_ALG_NAME];
void *int_dig_out = NULL;
void *int_dig_in = NULL;
void *int_dig_vv = NULL;
struct drbd_tconn *oconn;
struct sockaddr *new_my_addr, *new_peer_addr, *taken_addr;
conn_reconfig_start(mdev->tconn);
conn_reconfig_start(tconn);
if (mdev->state.conn > C_STANDALONE) {
if (tconn->cstate > C_STANDALONE) {
retcode = ERR_NET_CONFIGURED;
goto fail;
}
@ -1387,13 +1388,25 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
goto fail;
}
if (get_ldev(mdev)) {
enum drbd_fencing_p fp = mdev->ldev->dc.fencing;
put_ldev(mdev);
if (new_conf->wire_protocol == DRBD_PROT_A && fp == FP_STONITH) {
retcode = ERR_STONITH_AND_PROT_A;
idr_for_each_entry(&tconn->volumes, mdev, i) {
if (get_ldev(mdev)) {
enum drbd_fencing_p fp = mdev->ldev->dc.fencing;
put_ldev(mdev);
if (new_conf->wire_protocol == DRBD_PROT_A && fp == FP_STONITH) {
retcode = ERR_STONITH_AND_PROT_A;
goto fail;
}
}
if (mdev->state.role == R_PRIMARY && new_conf->want_lose) {
retcode = ERR_DISCARD;
goto fail;
}
if (!mdev->bitmap) {
if(drbd_bm_init(mdev)) {
retcode = ERR_NOMEM;
goto fail;
}
}
}
if (new_conf->on_congestion != OC_BLOCK && new_conf->wire_protocol != DRBD_PROT_A) {
@ -1401,31 +1414,25 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
goto fail;
}
if (mdev->state.role == R_PRIMARY && new_conf->want_lose) {
retcode = ERR_DISCARD;
goto fail;
}
retcode = NO_ERROR;
new_my_addr = (struct sockaddr *)&new_conf->my_addr;
new_peer_addr = (struct sockaddr *)&new_conf->peer_addr;
for (i = 0; i < minor_count; i++) {
odev = minor_to_mdev(i);
if (!odev || odev == mdev)
list_for_each_entry(oconn, &drbd_tconns, all_tconn) {
if (oconn == tconn)
continue;
if (get_net_conf(odev->tconn)) {
taken_addr = (struct sockaddr *)&odev->tconn->net_conf->my_addr;
if (new_conf->my_addr_len == odev->tconn->net_conf->my_addr_len &&
if (get_net_conf(oconn)) {
taken_addr = (struct sockaddr *)&oconn->net_conf->my_addr;
if (new_conf->my_addr_len == oconn->net_conf->my_addr_len &&
!memcmp(new_my_addr, taken_addr, new_conf->my_addr_len))
retcode = ERR_LOCAL_ADDR;
taken_addr = (struct sockaddr *)&odev->tconn->net_conf->peer_addr;
if (new_conf->peer_addr_len == odev->tconn->net_conf->peer_addr_len &&
taken_addr = (struct sockaddr *)&oconn->net_conf->peer_addr;
if (new_conf->peer_addr_len == oconn->net_conf->peer_addr_len &&
!memcmp(new_peer_addr, taken_addr, new_conf->peer_addr_len))
retcode = ERR_PEER_ADDR;
put_net_conf(odev->tconn);
put_net_conf(oconn);
if (retcode != NO_ERROR)
goto fail;
}
@ -1470,6 +1477,7 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
((char *)new_conf->shared_secret)[SHARED_SECRET_MAX-1] = 0;
/* allocation not in the IO path, cqueue thread context */
if (integrity_w_tfm) {
i = crypto_hash_digestsize(integrity_w_tfm);
int_dig_out = kmalloc(i, GFP_KERNEL);
@ -1489,46 +1497,40 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
}
}
if (!mdev->bitmap) {
if(drbd_bm_init(mdev)) {
retcode = ERR_NOMEM;
goto fail;
}
}
drbd_flush_workqueue(mdev);
spin_lock_irq(&mdev->tconn->req_lock);
if (mdev->tconn->net_conf != NULL) {
conn_flush_workqueue(tconn);
spin_lock_irq(&tconn->req_lock);
if (tconn->net_conf != NULL) {
retcode = ERR_NET_CONFIGURED;
spin_unlock_irq(&mdev->tconn->req_lock);
spin_unlock_irq(&tconn->req_lock);
goto fail;
}
mdev->tconn->net_conf = new_conf;
tconn->net_conf = new_conf;
mdev->send_cnt = 0;
mdev->recv_cnt = 0;
crypto_free_hash(tconn->cram_hmac_tfm);
tconn->cram_hmac_tfm = tfm;
crypto_free_hash(mdev->tconn->cram_hmac_tfm);
mdev->tconn->cram_hmac_tfm = tfm;
crypto_free_hash(tconn->integrity_w_tfm);
tconn->integrity_w_tfm = integrity_w_tfm;
crypto_free_hash(mdev->tconn->integrity_w_tfm);
mdev->tconn->integrity_w_tfm = integrity_w_tfm;
crypto_free_hash(tconn->integrity_r_tfm);
tconn->integrity_r_tfm = integrity_r_tfm;
crypto_free_hash(mdev->tconn->integrity_r_tfm);
mdev->tconn->integrity_r_tfm = integrity_r_tfm;
kfree(tconn->int_dig_out);
kfree(tconn->int_dig_in);
kfree(tconn->int_dig_vv);
tconn->int_dig_out=int_dig_out;
tconn->int_dig_in=int_dig_in;
tconn->int_dig_vv=int_dig_vv;
retcode = _conn_request_state(tconn, NS(conn, C_UNCONNECTED), CS_VERBOSE);
spin_unlock_irq(&tconn->req_lock);
kfree(mdev->tconn->int_dig_out);
kfree(mdev->tconn->int_dig_in);
kfree(mdev->tconn->int_dig_vv);
mdev->tconn->int_dig_out=int_dig_out;
mdev->tconn->int_dig_in=int_dig_in;
mdev->tconn->int_dig_vv=int_dig_vv;
retcode = _conn_request_state(mdev->tconn, NS(conn, C_UNCONNECTED), CS_VERBOSE);
spin_unlock_irq(&mdev->tconn->req_lock);
kobject_uevent(&disk_to_dev(mdev->vdisk)->kobj, KOBJ_CHANGE);
idr_for_each_entry(&tconn->volumes, mdev, i) {
mdev->send_cnt = 0;
mdev->recv_cnt = 0;
kobject_uevent(&disk_to_dev(mdev->vdisk)->kobj, KOBJ_CHANGE);
}
reply->ret_code = retcode;
conn_reconfig_done(mdev->tconn);
conn_reconfig_done(tconn);
return 0;
fail:
@ -1541,14 +1543,13 @@ fail:
kfree(new_conf);
reply->ret_code = retcode;
conn_reconfig_done(mdev->tconn);
conn_reconfig_done(tconn);
return 0;
}
static int drbd_nl_disconnect(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
static int drbd_nl_disconnect(struct drbd_tconn *tconn, struct drbd_nl_cfg_req *nlp,
struct drbd_nl_cfg_reply *reply)
{
struct drbd_tconn *tconn = mdev->tconn;
int retcode;
struct disconnect dc;
@ -1600,7 +1601,6 @@ static int drbd_nl_disconnect(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl
done:
retcode = NO_ERROR;
fail:
drbd_md_sync(mdev);
reply->ret_code = retcode;
return 0;
}
@ -2211,8 +2211,8 @@ static struct cn_handler_struct cnd_table[] = {
[ P_secondary ] = { CHT_MINOR, { &drbd_nl_secondary }, 0 },
[ P_disk_conf ] = { CHT_MINOR, { &drbd_nl_disk_conf }, 0 },
[ P_detach ] = { CHT_MINOR, { &drbd_nl_detach }, 0 },
[ P_net_conf ] = { CHT_MINOR, { &drbd_nl_net_conf }, 0 },
[ P_disconnect ] = { CHT_MINOR, { &drbd_nl_disconnect }, 0 },
[ P_net_conf ] = { CHT_CONN, { .conn_based = &drbd_nl_net_conf }, 0 },
[ P_disconnect ] = { CHT_CONN, { .conn_based = &drbd_nl_disconnect }, 0 },
[ P_resize ] = { CHT_MINOR, { &drbd_nl_resize }, 0 },
[ P_syncer_conf ] = { CHT_MINOR, { &drbd_nl_syncer_conf },0 },
[ P_invalidate ] = { CHT_MINOR, { &drbd_nl_invalidate }, 0 },