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Fix some issues that showed up during Kris' testing.

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Reported by:	kris
MFC after:	3 days
This commit is contained in:
Doug Rabson 2008-04-11 10:34:59 +00:00
parent b300d706ea
commit 8d9278ba1c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=178112
2 changed files with 36 additions and 16 deletions
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42
sys/nlm/nlm_prot_impl.c
View File

@ -161,6 +161,11 @@ TAILQ_HEAD(nlm_async_lock_list, nlm_async_lock);
/*
* NLM host.
*/
enum nlm_host_state {
NLM_UNMONITORED,
NLM_MONITORED,
NLM_MONITOR_FAILED
};
struct nlm_host {
struct mtx nh_lock;
TAILQ_ENTRY(nlm_host) nh_link; /* (s) global list of hosts */
@ -171,7 +176,7 @@ struct nlm_host {
CLIENT *nh_rpc; /* (s) RPC handle to send to host */
rpcvers_t nh_vers; /* (s) NLM version of host */
int nh_state; /* (s) last seen NSM state of host */
bool_t nh_monitored; /* (s) TRUE if local NSM is monitoring */
enum nlm_host_state nh_monstate; /* (s) local NSM monitoring state */
time_t nh_idle_timeout; /* (s) Time at which host is idle */
struct sysctl_ctx_list nh_sysctl; /* (c) vfs.nlm.sysid nodes */
struct nlm_async_lock_list nh_pending; /* (l) pending async locks */
@ -607,7 +612,7 @@ nlm_create_host(const char* caller_name)
host->nh_rpc = NULL;
host->nh_vers = 0;
host->nh_state = 0;
host->nh_monitored = FALSE;
host->nh_monstate = NLM_UNMONITORED;
TAILQ_INIT(&host->nh_pending);
TAILQ_INIT(&host->nh_finished);
TAILQ_INSERT_TAIL(&nlm_hosts, host, nh_link);
@ -621,7 +626,7 @@ nlm_create_host(const char* caller_name)
SYSCTL_ADD_INT(&host->nh_sysctl, SYSCTL_CHILDREN(oid), OID_AUTO,
"version", CTLFLAG_RD, &host->nh_vers, 0, "");
SYSCTL_ADD_INT(&host->nh_sysctl, SYSCTL_CHILDREN(oid), OID_AUTO,
"monitored", CTLFLAG_RD, &host->nh_monitored, 0, "");
"monitored", CTLFLAG_RD, &host->nh_monstate, 0, "");
SYSCTL_ADD_PROC(&host->nh_sysctl, SYSCTL_CHILDREN(oid), OID_AUTO,
"lock_count", CTLTYPE_INT | CTLFLAG_RD, host, 0,
nlm_host_lock_count_sysctl, "I", "");
@ -679,7 +684,7 @@ nlm_check_idle(void)
nlm_next_idle_check = time_uptime + NLM_IDLE_PERIOD;
TAILQ_FOREACH(host, &nlm_hosts, nh_link) {
if (host->nh_monitored
if (host->nh_monstate == NLM_MONITORED
&& time_uptime > host->nh_idle_timeout) {
if (lf_countlocks(host->nh_sysid) > 0) {
host->nh_idle_timeout =
@ -861,7 +866,7 @@ nlm_host_unmonitor(struct nlm_host *host)
return;
}
host->nh_monitored = FALSE;
host->nh_monstate = NLM_UNMONITORED;
}
/*
@ -896,7 +901,7 @@ nlm_host_monitor(struct nlm_host *host, int state)
host->nh_caller_name, host->nh_sysid, state);
}
if (host->nh_monitored)
if (host->nh_monstate != NLM_UNMONITORED)
return;
if (nlm_debug_level >= 1)
@ -928,10 +933,11 @@ nlm_host_monitor(struct nlm_host *host, int state)
if (smstat.res_stat == stat_fail) {
printf("Local NSM refuses to monitor %s\n",
host->nh_caller_name);
host->nh_monstate = NLM_MONITOR_FAILED;
return;
}
host->nh_monitored = TRUE;
host->nh_monstate = NLM_MONITORED;
}
/*
@ -1265,6 +1271,7 @@ struct vfs_state {
struct mount *vs_mp;
struct vnode *vs_vp;
int vs_vfslocked;
int vs_vnlocked;
};
static int
@ -1296,6 +1303,7 @@ nlm_get_vfs_state(struct nlm_host *host, struct svc_req *rqstp,
error = VFS_FHTOVP(vs->vs_mp, &fhp->fh_fid, &vs->vs_vp);
if (error)
goto out;
vs->vs_vnlocked = TRUE;
cred = crget();
freecred = TRUE;
@ -1308,11 +1316,6 @@ nlm_get_vfs_state(struct nlm_host *host, struct svc_req *rqstp,
cred = credanon;
freecred = FALSE;
}
#if __FreeBSD_version < 800011
VOP_UNLOCK(vs->vs_vp, 0, curthread);
#else
VOP_UNLOCK(vs->vs_vp, 0);
#endif
/*
* Check cred.
@ -1321,6 +1324,13 @@ nlm_get_vfs_state(struct nlm_host *host, struct svc_req *rqstp,
if (error)
goto out;
#if __FreeBSD_version < 800011
VOP_UNLOCK(vs->vs_vp, 0, curthread);
#else
VOP_UNLOCK(vs->vs_vp, 0);
#endif
vs->vs_vnlocked = FALSE;
out:
if (freecred)
crfree(cred);
@ -1332,8 +1342,12 @@ static void
nlm_release_vfs_state(struct vfs_state *vs)
{
if (vs->vs_vp)
vrele(vs->vs_vp);
if (vs->vs_vp) {
if (vs->vs_vnlocked)
vput(vs->vs_vp);
else
vrele(vs->vs_vp);
}
if (vs->vs_mp)
vfs_rel(vs->vs_mp);
VFS_UNLOCK_GIANT(vs->vs_vfslocked);

10
sys/rpc/clnt_rc.c
View File

@ -139,6 +139,9 @@ clnt_reconnect_connect(CLIENT *cl)
(struct sockaddr *) &rc->rc_addr, rc->rc_prog, rc->rc_vers,
rc->rc_sendsz, rc->rc_recvsz);
if (!rc->rc_client)
return (rpc_createerr.cf_stat);
CLNT_CONTROL(rc->rc_client, CLSET_FD_CLOSE, 0);
CLNT_CONTROL(rc->rc_client, CLSET_CONNECT, &one);
CLNT_CONTROL(rc->rc_client, CLSET_TIMEOUT, &rc->rc_timeout);
@ -163,8 +166,11 @@ clnt_reconnect_call(
enum clnt_stat stat;
do {
if (!rc->rc_client)
clnt_reconnect_connect(cl);
if (!rc->rc_client) {
stat = clnt_reconnect_connect(cl);
if (stat != RPC_SUCCESS)
return (stat);
}
stat = CLNT_CALL(rc->rc_client, proc, xargs, argsp,
xresults, resultsp, utimeout);