From: ycnian@gmail.com Date: Mon, 11 Mar 2013 00:46:14 +0000 (+0800) Subject: nfsd: fix bug on nfs4 stateid deallocation X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=491402a7876e91aa491c33f70ed4e86e59f06c8b;p=openwrt%2Fstaging%2Fblogic.git 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 Signed-off-by: J. Bruce Fields --- diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index baf314a950b8..aac878ecabc4 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -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)) {