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nfsd: Fix memory leak of so_owner.data in nfs4_stateowner 

v2, new helper nfs4_free_stateowner for freeing so_owner.data and sop

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Kinglong Mee 2015-07-16 12:05:07 +08:00 committed by J. Bruce Fields
parent 47e970bee7
commit d50ffded79
1 changed files with 11 additions and 4 deletions
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15
fs/nfsd/nfs4state.c
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@ -990,6 +990,12 @@ release_all_access(struct nfs4_ol_stateid *stp)
}
}
static inline void nfs4_free_stateowner(struct nfs4_stateowner *sop)
{
kfree(sop->so_owner.data);
sop->so_ops->so_free(sop);
}
static void nfs4_put_stateowner(struct nfs4_stateowner *sop)
{
struct nfs4_client *clp = sop->so_client;
@ -1000,8 +1006,7 @@ static void nfs4_put_stateowner(struct nfs4_stateowner *sop)
return;
sop->so_ops->so_unhash(sop);
spin_unlock(&clp->cl_lock);
kfree(sop->so_owner.data);
sop->so_ops->so_free(sop);
nfs4_free_stateowner(sop);
}
static void unhash_ol_stateid(struct nfs4_ol_stateid *stp)
@ -3318,7 +3323,8 @@ alloc_init_open_stateowner(unsigned int strhashval, struct nfsd4_open *open,
hash_openowner(oo, clp, strhashval);
ret = oo;
} else
nfs4_free_openowner(&oo->oo_owner);
nfs4_free_stateowner(&oo->oo_owner);
spin_unlock(&clp->cl_lock);
return ret;
}
@ -5219,7 +5225,8 @@ alloc_init_lock_stateowner(unsigned int strhashval, struct nfs4_client *clp,
&clp->cl_ownerstr_hashtbl[strhashval]);
ret = lo;
} else
nfs4_free_lockowner(&lo->lo_owner);
nfs4_free_stateowner(&lo->lo_owner);
spin_unlock(&clp->cl_lock);
return ret;
}