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[PATCH] knfsd: Fix bug in recent lockd patches that can cause reclaim to fail

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When an nfs server shuts down, lockd needs to release all the locks even
though the client still holds them.

It should therefore not 'unmonitor' the clients, so that the files in nfs/sm
will still be there when the nfs server restarts, so that those clients will
be told to reclaim their locks.

However the hosts are fully unmonitored, so statd may well remove the files.

lockd has a test for 'sm_sticky' and avoid the unmonitor call if it is set,
but it is currently not set.

So set it when tearing down lockd.

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:
NeilBrown 2006-10-17 00:10:17 -07:00 committed by Linus Torvalds
parent 0942176f43
commit 4481d1038f
1 changed files with 10 additions and 1 deletions
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11
fs/lockd/svcsubs.c
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@ -324,7 +324,16 @@ nlmsvc_same_host(struct nlm_host *host, struct nlm_host *other)
static int
nlmsvc_is_client(struct nlm_host *host, struct nlm_host *dummy)
{
return host->h_server;
if (host->h_server) {
/* we are destroying locks even though the client
* hasn't asked us too, so don't unmonitor the
* client
*/
if (host->h_nsmhandle)
host->h_nsmhandle->sm_sticky = 1;
return 1;
} else
return 0;
}
/*