Commit f40eb5d0 authored by Peng Tao's avatar Peng Tao Committed by Tom Haynes
Browse files

nfs41: make a helper function to send layoutreturn 



It allows to specify different iomode to return.

Signed-off-by: default avatarPeng Tao <tao.peng@primarydata.com>
Signed-off-by: default avatarTom Haynes <Thomas.Haynes@primarydata.com>
parent 4579d6b8

fs/nfs/pnfs.c

+33 −20
Original line number Diff line number Diff line
@@ -845,6 +845,38 @@ static void pnfs_clear_layoutcommit(struct inode *inode, 
	}

}



static int

pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo, nfs4_stateid stateid,

		       enum pnfs_iomode iomode)

{

	struct inode *ino = lo->plh_inode;

	struct nfs4_layoutreturn *lrp;

	int status = 0;



	lrp = kzalloc(sizeof(*lrp), GFP_KERNEL);

	if (unlikely(lrp == NULL)) {

		status = -ENOMEM;

		spin_lock(&ino->i_lock);

		lo->plh_block_lgets--;

		spin_unlock(&ino->i_lock);

		pnfs_put_layout_hdr(lo);

		goto out;

	}



	lrp->args.stateid = stateid;

	lrp->args.layout_type = NFS_SERVER(ino)->pnfs_curr_ld->id;

	lrp->args.inode = ino;

	lrp->args.iomode = iomode;

	lrp->args.layout = lo;

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

	lrp->cred = lo->plh_lc_cred;



	status = nfs4_proc_layoutreturn(lrp);

out:

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

	return status;

}



/*

 * Initiates a LAYOUTRETURN(FILE), and removes the pnfs_layout_hdr

 * when the layout segment list is empty.
@@ -859,7 +891,6 @@ _pnfs_return_layout(struct inode *ino) 
	struct pnfs_layout_hdr *lo = NULL;

	struct nfs_inode *nfsi = NFS_I(ino);

	LIST_HEAD(tmp_list);

	struct nfs4_layoutreturn *lrp;

	nfs4_stateid stateid;

	int status = 0, empty;
@@ -901,25 +932,7 @@ _pnfs_return_layout(struct inode *ino) 
	spin_unlock(&ino->i_lock);

	pnfs_free_lseg_list(&tmp_list);



	lrp = kzalloc(sizeof(*lrp), GFP_KERNEL);

	if (unlikely(lrp == NULL)) {

		status = -ENOMEM;

		spin_lock(&ino->i_lock);

		lo->plh_block_lgets--;

		spin_unlock(&ino->i_lock);

		pnfs_put_layout_hdr(lo);

		goto out;

	}



	lrp->args.stateid = stateid;

	lrp->args.layout_type = NFS_SERVER(ino)->pnfs_curr_ld->id;

	lrp->args.inode = ino;

	lrp->args.iomode = IOMODE_ANY;

	lrp->args.layout = lo;

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

	lrp->cred = lo->plh_lc_cred;



	status = nfs4_proc_layoutreturn(lrp);

	status = pnfs_send_layoutreturn(lo, stateid, IOMODE_ANY);

out:

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

	return status;