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nfsd: fix bug on nfs4 stateid deallocation 

NFS4_OO_PURGE_CLOSE is not handled properly. To avoid memory leak, nfs4
stateid which is pointed by oo_last_closed_stid is freed in nfsd4_close(),
but NFS4_OO_PURGE_CLOSE isn't cleared meanwhile. So the stateid released in
THIS close procedure may be freed immediately in the coming encoding function.
Sorry that Signed-off-by was forgotten in last version.

Signed-off-by: Yanchuan Nian <ycnian@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
ycnian@gmail.com 2013-03-11 08:46:14 +08:00 committed by J. Bruce Fields
parent 9c6bdbb8dd
commit 491402a787
1 changed files with 1 additions and 0 deletions
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1
fs/nfsd/nfs4state.c
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@ -3823,6 +3823,7 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfsd4_close_open_stateid(stp);
release_last_closed_stateid(oo);
oo->oo_flags &= ~NFS4_OO_PURGE_CLOSE;
oo->oo_last_closed_stid = stp;
if (list_empty(&oo->oo_owner.so_stateids)) {