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Commit 4d796d75 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

pNFS: Allow layout drivers to manage private data in struct nfs4_layoutreturn 



Cleanup to allow layout drivers to attach private data to layoutreturn,
and manage the data.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent f8c3cf9d

fs/nfs/nfs4proc.c

+6 −0
Original line number Diff line number Diff line
@@ -3039,6 +3039,7 @@ struct nfs4_closedata { 
	struct {

		struct nfs4_layoutreturn_args arg;

		struct nfs4_layoutreturn_res res;

		struct nfs4_xdr_opaque_data ld_private;

		u32 roc_barrier;

		bool roc;

	} lr;
@@ -3267,6 +3268,7 @@ int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait) 
	if (IS_ERR(calldata->arg.seqid))

		goto out_free_calldata;

	calldata->arg.fmode = 0;

	calldata->lr.arg.ld_private = &calldata->lr.ld_private;

	calldata->res.fattr = &calldata->fattr;

	calldata->res.seqid = calldata->arg.seqid;

	calldata->res.server = server;
@@ -5599,6 +5601,7 @@ struct nfs4_delegreturndata { 
	struct {

		struct nfs4_layoutreturn_args arg;

		struct nfs4_layoutreturn_res res;

		struct nfs4_xdr_opaque_data ld_private;

		u32 roc_barrier;

		bool roc;

	} lr;
@@ -5735,6 +5738,7 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co 
	data->res.fattr = &data->fattr;

	data->res.server = server;

	data->res.lr_ret = -NFS4ERR_NOMATCHING_LAYOUT;

	data->lr.arg.ld_private = &data->lr.ld_private;

	nfs_fattr_init(data->res.fattr);

	data->timestamp = jiffies;

	data->rpc_status = 0;
@@ -8633,6 +8637,8 @@ static void nfs4_layoutreturn_release(void *calldata) 
	nfs4_sequence_free_slot(&lrp->res.seq_res);

	pnfs_put_layout_hdr(lrp->args.layout);

	nfs_iput_and_deactive(lrp->inode);

	if (lrp->ld_private.ops && lrp->ld_private.ops->free)

		lrp->ld_private.ops->free(&lrp->ld_private);

	kfree(calldata);

	dprintk("<-- %s\n", __func__);

}

fs/nfs/nfs4xdr.c

+3 −1
Original line number Diff line number Diff line
@@ -2035,7 +2035,9 @@ encode_layoutreturn(struct xdr_stream *xdr, 
	spin_lock(&args->inode->i_lock);

	encode_nfs4_stateid(xdr, &args->stateid);

	spin_unlock(&args->inode->i_lock);

	if (lr_ops->encode_layoutreturn)

	if (args->ld_private->ops && args->ld_private->ops->encode)

		args->ld_private->ops->encode(xdr, args, args->ld_private);

	else if (lr_ops->encode_layoutreturn)

		lr_ops->encode_layoutreturn(xdr, args);

	else

		encode_uint32(xdr, 0);

fs/nfs/pnfs.c

+1 −0
Original line number Diff line number Diff line
@@ -1086,6 +1086,7 @@ pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo, const nfs4_stateid *stateid, 
	}



	pnfs_init_layoutreturn_args(&lrp->args, lo, stateid, iomode);

	lrp->args.ld_private = &lrp->ld_private;

	lrp->clp = NFS_SERVER(ino)->nfs_client;

	lrp->cred = lo->plh_lc_cred;

include/linux/nfs_xdr.h

+2 −0
Original line number Diff line number Diff line
@@ -320,6 +320,7 @@ struct nfs4_layoutreturn_args { 
	struct pnfs_layout_range range;

	nfs4_stateid stateid;

	__u32   layout_type;

	struct nfs4_xdr_opaque_data *ld_private;

};



struct nfs4_layoutreturn_res {
@@ -335,6 +336,7 @@ struct nfs4_layoutreturn { 
	struct nfs_client *clp;

	struct inode *inode;

	int rpc_status;

	struct nfs4_xdr_opaque_data ld_private;

};



#define PNFS_LAYOUTSTATS_MAXSIZE 256