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drbd: Do not allow a fencing-policy of resource-and-stonith with protocol A

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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 2010-06-18 13:56:57 +02:00
parent 265be2d098
commit 47ff2d0a8e
3 changed files with 21 additions and 2 deletions
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20
drivers/block/drbd/drbd_nl.c
View File

@ -806,6 +806,15 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
goto fail;
}
if (get_net_conf(mdev)) {
int prot = mdev->net_conf->wire_protocol;
put_net_conf(mdev);
if (nbc->dc.fencing == FP_STONITH && prot == DRBD_PROT_A) {
retcode = ERR_STONITH_AND_PROT_A;
goto fail;
}
}
nbc->lo_file = filp_open(nbc->dc.backing_dev, O_RDWR, 0);
if (IS_ERR(nbc->lo_file)) {
dev_err(DEV, "open(\"%s\") failed with %ld\n", nbc->dc.backing_dev,
@ -1238,7 +1247,16 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
&& (new_conf->wire_protocol != DRBD_PROT_C)) {
retcode = ERR_NOT_PROTO_C;
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;
goto fail;
}
}
if (mdev->state.role == R_PRIMARY && new_conf->want_lose) {
retcode = ERR_DISCARD;

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

@ -660,7 +660,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
case resend:
/* If RQ_NET_OK is already set, we got a P_WRITE_ACK or P_RECV_ACK
before the connection loss; only P_BARRIER_ACK was missing.
before the connection loss (B&C only); only P_BARRIER_ACK was missing.
Trowing them out of the TL here by pretending we got a BARRIER_ACK
TODO: Either resync them, or ensure peer was not rebooted. */
if (!(req->rq_state & RQ_NET_OK)) {

1
include/linux/drbd.h
View File

@ -145,6 +145,7 @@ enum drbd_ret_codes {
ERR_CONNECTED = 151, /* DRBD 8.3 only */
ERR_PERM = 152,
ERR_NEED_APV_93 = 153,
ERR_STONITH_AND_PROT_A = 154,
/* insert new ones above this line */
AFTER_LAST_ERR_CODE