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authorNeilBrown <neilb@suse.de>2006-10-17 00:10:17 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-17 08:18:46 -0700
commit4481d1038f4116f3f5c307d919e6dc815a3acbb9 (patch)
tree4424568a3b335a379796eb867e3c0d898b2dc5d3
parent0942176f4353ffebcd6e3f95abce9fd8e24f2cb1 (diff)
[PATCH] knfsd: Fix bug in recent lockd patches that can cause reclaim to fail
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>
-rw-r--r--fs/lockd/svcsubs.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 514f5f20701e..c5f9113cdc70 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -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;
}
/*