lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] knfsd: lockd: introduce nsm_handle

Browse Source 
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>
This commit is contained in:
Olaf Kirch
2006-10-04 02:15:53 -07:00
committed by Linus Torvalds
parent db4e4c9a9e
commit 8dead0dbd4
4 changed files with 136 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
fs/lockd/mon.c
View File

@@ -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;
}