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| 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 /include/linux/lockd | |
| parent | 031d869d0e0be18cfe35526be5608225b8f0a7be (diff) | |
| download | linux-39be4502cb75dc26007fe1659735b26c8e63fcc6.tar.gz linux-39be4502cb75dc26007fe1659735b26c8e63fcc6.tar.bz2 linux-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 'include/linux/lockd')
| -rw-r--r-- | include/linux/lockd/lockd.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index a345650e5622..5920ecaeed66 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -193,7 +193,7 @@ u32 nlmsvc_cancel_blocked(struct nlm_file *, struct nlm_lock *); unsigned long nlmsvc_retry_blocked(void); void nlmsvc_traverse_blocks(struct nlm_host *, struct nlm_file *, nlm_host_match_fn_t match); -void nlmsvc_grant_reply(struct svc_rqst *, struct nlm_cookie *, u32); +void nlmsvc_grant_reply(struct nlm_cookie *, u32); /* * File handling for the server personality |