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NFSv4: Fix another nfs4_sequence corruptor 

nfs4_release_lockowner needs to set the rpc_message reply to point to
the nfs4_sequence_res in order to avoid another Oopsable situation
in nfs41_assign_slot.

Fixes: fbd4bfd1d9 (NFS: Add nfs4_sequence calls for RELEASE_LOCKOWNER)
Cc: stable@vger.kernel.org # 3.12+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2014-02-26 11:19:14 -08:00
parent 146d70caaa
commit b7e63a1079
2 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
fs/nfs/nfs4proc.c
View File

@ -5828,8 +5828,7 @@ struct nfs_release_lockowner_data {
struct nfs4_lock_state *lsp;
struct nfs_server *server;
struct nfs_release_lockowner_args args;
struct nfs4_sequence_args seq_args;
struct nfs4_sequence_res seq_res;
struct nfs_release_lockowner_res res;
unsigned long timestamp;
};
@ -5837,7 +5836,7 @@ static void nfs4_release_lockowner_prepare(struct rpc_task *task, void *calldata
{
struct nfs_release_lockowner_data *data = calldata;
nfs40_setup_sequence(data->server,
&data->seq_args, &data->seq_res, task);
&data->args.seq_args, &data->res.seq_res, task);
data->timestamp = jiffies;
}
@ -5846,7 +5845,7 @@ static void nfs4_release_lockowner_done(struct rpc_task *task, void *calldata)
struct nfs_release_lockowner_data *data = calldata;
struct nfs_server *server = data->server;
nfs40_sequence_done(task, &data->seq_res);
nfs40_sequence_done(task, &data->res.seq_res);
switch (task->tk_status) {
case 0:
@ -5887,7 +5886,6 @@ static int nfs4_release_lockowner(struct nfs_server *server, struct nfs4_lock_st
data = kmalloc(sizeof(*data), GFP_NOFS);
if (!data)
return -ENOMEM;
nfs4_init_sequence(&data->seq_args, &data->seq_res, 0);
data->lsp = lsp;
data->server = server;
data->args.lock_owner.clientid = server->nfs_client->cl_clientid;
@ -5895,6 +5893,8 @@ static int nfs4_release_lockowner(struct nfs_server *server, struct nfs4_lock_st
data->args.lock_owner.s_dev = server->s_dev;
msg.rpc_argp = &data->args;
msg.rpc_resp = &data->res;
nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 0);
rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, data);
return 0;
}

5
include/linux/nfs_xdr.h
View File

@ -467,9 +467,14 @@ struct nfs_lockt_res {
};
struct nfs_release_lockowner_args {
struct nfs4_sequence_args seq_args;
struct nfs_lowner lock_owner;
};
struct nfs_release_lockowner_res {
struct nfs4_sequence_res seq_res;
};
struct nfs4_delegreturnargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *fhandle;