diff options
| author |   Olaf Kirch <okir@suse.de> | 2006-10-04 02:16:03 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-04 07:55:18 -0700 |
| commit | 39be4502cb75dc26007fe1659735b26c8e63fcc6 (patch) | |
| tree | 0f4c6bf14f8a975178b3192bfc9ba942da56619f /fs/lockd/svc4proc.c | |
| parent | [PATCH] knfsd: make nlmclnt_next_cookie SMP safe (diff) | |
| download | linux-dev-39be4502cb75dc26007fe1659735b26c8e63fcc6.tar.xz linux-dev-39be4502cb75dc26007fe1659735b26c8e63fcc6.zip | |
[PATCH] knfsd: match GRANTED_RES replies using cookies
When we send a GRANTED_MSG call, we current copy the NLM cookie provided in
the original LOCK call - because in 1996, some broken clients seemed to rely
on this bug. However, this means the cookies are not unique, so that when the
client's GRANTED_RES message comes back, we cannot simply match it based on
the cookie, but have to use the client's IP address in addition. Which breaks
when you have a multi-homed NFS client.
The X/Open spec explicitly mentions that clients should not expect the same
cookie; so one may hope that any clients that were broken in 1996 have either
been fixed or rendered obsolete.
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/svc4proc.c')
| -rw-r--r-- | fs/lockd/svc4proc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c index b8525fb62934..fa370f6eb07b 100644 --- a/fs/lockd/svc4proc.c +++ b/fs/lockd/svc4proc.c @@ -455,7 +455,7 @@ nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res *argp, dprintk("lockd: GRANTED_RES called\n"); - nlmsvc_grant_reply(rqstp, &argp->cookie, argp->status); + nlmsvc_grant_reply(&argp->cookie, argp->status); return rpc_success; } |