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| author | Trond Myklebust | 2013-03-17 20:52:00 +0100 |
|---|---|---|
| committer | Trond Myklebust | 2013-03-25 17:04:10 +0100 |
| commit | 9b20614988199fb03580b335a28250922e902098 (patch) | |
| tree | eb8020ff76d93017af31f10dbdd4b5d929dd4369 /fs/nfs/nfs4filelayout.c | |
| parent | NFS: __nfs_find_lock_context needs to check ctx->lock_context for a match too (diff) | |
| download | kernel-qcow2-linux-9b20614988199fb03580b335a28250922e902098.tar.gz kernel-qcow2-linux-9b20614988199fb03580b335a28250922e902098.tar.xz kernel-qcow2-linux-9b20614988199fb03580b335a28250922e902098.zip | |
NFSv4: The stateid must remain the same for replayed RPC calls
If we replay a READ or WRITE call, we should not be changing the
stateid. Currently, we may end up doing so, because the stateid
is only selected at xdr encode time.
This patch ensures that we select the stateid after we get an NFSv4.1
session slot, and that we keep that same stateid across retries.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4filelayout.c')
| -rw-r--r-- | fs/nfs/nfs4filelayout.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 4ba32e23eddd..22d10623f5ee 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -317,10 +317,13 @@ static void filelayout_read_prepare(struct rpc_task *task, void *data) } rdata->read_done_cb = filelayout_read_done_cb; - nfs41_setup_sequence(rdata->ds_clp->cl_session, + if (nfs41_setup_sequence(rdata->ds_clp->cl_session, &rdata->args.seq_args, &rdata->res.seq_res, - task); + task)) + return; + nfs4_set_rw_stateid(&rdata->args.stateid, rdata->args.context, + rdata->args.lock_context, FMODE_READ); } static void filelayout_read_call_done(struct rpc_task *task, void *data) @@ -421,10 +424,13 @@ static void filelayout_write_prepare(struct rpc_task *task, void *data) rpc_exit(task, 0); return; } - nfs41_setup_sequence(wdata->ds_clp->cl_session, + if (nfs41_setup_sequence(wdata->ds_clp->cl_session, &wdata->args.seq_args, &wdata->res.seq_res, - task); + task)) + return; + nfs4_set_rw_stateid(&wdata->args.stateid, wdata->args.context, + wdata->args.lock_context, FMODE_WRITE); } static void filelayout_write_call_done(struct rpc_task *task, void *data) |