Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

[PATCH] nfsd4: no replays on unconfirmed owners

Browse source 
We shouldn't check for replays until after checking whether the open owner is
confirmed.  Clients are allowed to reuse openowners without bumping the seqid.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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:
J. Bruce Fields 2006-01-18 17:43:32 -08:00 committed by Linus Torvalds
parent a525825df1
commit ae8b625313
1 changed files with 11 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
fs/nfsd/nfs4state.c
View file

@ -1465,8 +1465,16 @@ nfsd4_process_open1(struct nfsd4_open *open)
sop = find_openstateowner_str(strhashval, open);
if (sop) {
open->op_stateowner = sop;
/* check for replay */
if (open->op_seqid == sop->so_seqid - 1){
if (!sop->so_confirmed) {
/* Replace any unconfirmed stateowner without
* even checking for replays */
clp = sop->so_client;
release_stateowner(sop);
} else if (open->op_seqid == sop->so_seqid) {
/* normal case */
goto renew;
} else if (open->op_seqid == sop->so_seqid - 1) {
/* replay */
if (sop->so_replay.rp_buflen)
return NFSERR_REPLAY_ME;
else {
@ -1480,19 +1488,9 @@ nfsd4_process_open1(struct nfsd4_open *open)
" replay with no replay cache\n");
goto renew;
}
} else if (sop->so_confirmed) {
if (open->op_seqid == sop->so_seqid)
goto renew;
} else {
status = nfserr_bad_seqid;
goto out;
} else {
/* If we get here, we received an OPEN for an
* unconfirmed nfs4_stateowner. Since the seqid's are
* different, purge the existing nfs4_stateowner, and
* instantiate a new one.
*/
clp = sop->so_client;
release_stateowner(sop);
}
} else {
/* nfs4_stateowner not found.