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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-02-05 16:35:16 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-02-05 22:16:45 -0500 |
| commit | 5a0ec8acb945e302ce819b4a9787796ccf284548 (patch) | |
| tree | da14a82a655160b85440bc6981b91e25f9303299 | |
| parent | 472e259449819d939b5a5188b6f4c7d59aa4304c (diff) | |
| download | linux-5a0ec8acb945e302ce819b4a9787796ccf284548.tar.bz2 | |
NFSv4.1: Pin the inode and super block in asynchronous layoutreturns
If we're sending an asynchronous layoutreturn, then we need to ensure
that the inode and the super block remain pinned.
Cc: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
| -rw-r--r-- | fs/nfs/nfs4proc.c | 19 | ||||
| -rw-r--r-- | include/linux/nfs_xdr.h | 1 |
2 files changed, 12 insertions, 8 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index e092b8540e2e..2e7c9f7a6f7c 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -7856,6 +7856,7 @@ static void nfs4_layoutreturn_release(void *calldata) lo->plh_block_lgets--; spin_unlock(&lo->plh_inode->i_lock); pnfs_put_layout_hdr(lrp->args.layout); + nfs_iput_and_deactive(lrp->inode); kfree(calldata); dprintk("<-- %s\n", __func__); } @@ -7880,23 +7881,25 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync) .rpc_message = &msg, .callback_ops = &nfs4_layoutreturn_call_ops, .callback_data = lrp, - .flags = RPC_TASK_ASYNC, }; int status = 0; dprintk("--> %s\n", __func__); + if (!sync) { + lrp->inode = nfs_igrab_and_active(lrp->args.inode); + if (!lrp->inode) { + nfs4_layoutreturn_release(lrp); + return -EAGAIN; + } + task_setup_data.flags |= RPC_TASK_ASYNC; + } nfs4_init_sequence(&lrp->args.seq_args, &lrp->res.seq_res, 1); task = rpc_run_task(&task_setup_data); if (IS_ERR(task)) return PTR_ERR(task); - if (sync == false) - goto out; - status = nfs4_wait_for_completion_rpc_task(task); - if (status != 0) - goto out; - status = task->tk_status; + if (sync) + status = task->tk_status; trace_nfs4_layoutreturn(lrp->args.inode, status); -out: dprintk("<-- %s status=%d\n", __func__, status); rpc_put_task(task); return status; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index bb0d56f737e0..38d96ba935c2 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -310,6 +310,7 @@ struct nfs4_layoutreturn { struct nfs4_layoutreturn_res res; struct rpc_cred *cred; struct nfs_client *clp; + struct inode *inode; int rpc_status; }; |