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[PATCH] knfsd: hide use of lockd's h_monitored flag 

This patch moves all checks of the h_monitored flag into the
nsm_monitor/unmonitor functions.  A subsequent patch will replace the
mechanism by which we mark a host as being monitored.

There is still one occurence of h_monitored outside of mon.c and that is in
clntlock.c where we respond to a reboot.  The subsequent patch will modify
this too.

Signed-off-by: Olaf Kirch <okir@suse.de>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Olaf Kirch 2006-10-04 02:15:51 -07:00 committed by Linus Torvalds
parent 7b2b1fee30
commit 977faf392f
5 changed files with 20 additions and 12 deletions
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2
fs/lockd/clntproc.c
View File

@ -499,7 +499,7 @@ nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
unsigned char fl_flags = fl->fl_flags;
int status = -ENOLCK;
if (!host->h_monitored && nsm_monitor(host) < 0) {
if (nsm_monitor(host) < 0) {
printk(KERN_NOTICE "lockd: failed to monitor %s\n",
host->h_name);
goto out;

9
fs/lockd/host.c
View File

@ -331,9 +331,12 @@ nlm_gc_hosts(void)
}
dprintk("lockd: delete host %s\n", host->h_name);
*q = host->h_next;
/* Don't unmonitor hosts that have been invalidated */
if (host->h_monitored && !host->h_killed)
nsm_unmonitor(host);
/*
* Unmonitor unless host was invalidated (i.e. lockd restarted)
*/
nsm_unmonitor(host);
if ((clnt = host->h_rpcclnt) != NULL) {
if (atomic_read(&clnt->cl_users)) {
printk(KERN_WARNING

17
fs/lockd/mon.c
View File

@ -74,6 +74,8 @@ nsm_monitor(struct nlm_host *host)
int status;
dprintk("lockd: nsm_monitor(%s)\n", host->h_name);
if (host->h_monitored)
return 0;
status = nsm_mon_unmon(host, SM_MON, &res);
@ -91,15 +93,18 @@ int
nsm_unmonitor(struct nlm_host *host)
{
struct nsm_res res;
int status;
int status = 0;
dprintk("lockd: nsm_unmonitor(%s)\n", host->h_name);
if (!host->h_monitored)
return 0;
host->h_monitored = 0;
status = nsm_mon_unmon(host, SM_UNMON, &res);
if (status < 0)
printk(KERN_NOTICE "lockd: cannot unmonitor %s\n", host->h_name);
else
host->h_monitored = 0;
if (!host->h_killed) {
status = nsm_mon_unmon(host, SM_UNMON, &res);
if (status < 0)
printk(KERN_NOTICE "lockd: cannot unmonitor %s\n", host->h_name);
}
return status;
}

2
fs/lockd/svc4proc.c
View File

@ -39,7 +39,7 @@ nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Obtain host handle */
if (!(host = nlmsvc_lookup_host(rqstp))
|| (argp->monitor && !host->h_monitored && nsm_monitor(host) < 0))
|| (argp->monitor && nsm_monitor(host) < 0))
goto no_locks;
*hostp = host;

2
fs/lockd/svcproc.c
View File

@ -67,7 +67,7 @@ nlmsvc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Obtain host handle */
if (!(host = nlmsvc_lookup_host(rqstp))
|| (argp->monitor && !host->h_monitored && nsm_monitor(host) < 0))
|| (argp->monitor && nsm_monitor(host) < 0))
goto no_locks;
*hostp = host;