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authorOlaf Kirch <okir@suse.de>2006-10-04 02:15:53 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-04 07:55:16 -0700
commit8dead0dbd478f35fd943f3719591e5af1ac0950d (patch)
tree05ad7dd248263cbeecc4f3d0b4cbb3ec06c65626 /fs/lockd/mon.c
parentdb4e4c9a9e741ee812e1febf5e386d6a24218a71 (diff)
[PATCH] knfsd: lockd: introduce nsm_handle
This patch introduces the nsm_handle, which is shared by all nlm_host objects referring to the same client. With this patch applied, all nlm_hosts from the same address will share the same nsm_handle. A future patch will add sharing by name. Note: this patch changes h_name so that it is no longer guaranteed to be an IP address of the host. When the host represents an NFS server, h_name will be the name passed in the mount call. When the host represents a client, h_name will be the name presented in the lock request received from the client. A h_name is only used for printing informational messages, this change should not be significant. 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>
Diffstat (limited to 'fs/lockd/mon.c')
-rw-r--r--fs/lockd/mon.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index e02a1a4dfce..e27981403fb 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -70,11 +70,14 @@ nsm_mon_unmon(struct nlm_host *host, u32 proc, struct nsm_res *res)
int
nsm_monitor(struct nlm_host *host)
{
+ struct nsm_handle *nsm = host->h_nsmhandle;
struct nsm_res res;
int status;
dprintk("lockd: nsm_monitor(%s)\n", host->h_name);
- if (host->h_monitored)
+ BUG_ON(nsm == NULL);
+
+ if (nsm->sm_monitored)
return 0;
status = nsm_mon_unmon(host, SM_MON, &res);
@@ -82,7 +85,7 @@ nsm_monitor(struct nlm_host *host)
if (status < 0 || res.status != 0)
printk(KERN_NOTICE "lockd: cannot monitor %s\n", host->h_name);
else
- host->h_monitored = 1;
+ nsm->sm_monitored = 1;
return status;
}
@@ -92,19 +95,22 @@ nsm_monitor(struct nlm_host *host)
int
nsm_unmonitor(struct nlm_host *host)
{
+ struct nsm_handle *nsm = host->h_nsmhandle;
struct nsm_res res;
int status = 0;
dprintk("lockd: nsm_unmonitor(%s)\n", host->h_name);
- if (!host->h_monitored)
+ if (nsm == NULL)
return 0;
- host->h_monitored = 0;
+ host->h_nsmhandle = NULL;
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);
+ nsm->sm_monitored = 0;
}
+ nsm_release(nsm);
return status;
}