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Commit df9cecc1 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

pNFS: pnfs_roc_drain should return 'true' when sleeping 



Also clean up the case where we don't find a return-on-close layout segment.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent c5d73716

fs/nfs/pnfs.c

+11 −13
Original line number Diff line number Diff line
@@ -1146,14 +1146,14 @@ bool pnfs_roc_drain(struct inode *ino, u32 *barrier, struct rpc_task *task) 
	struct pnfs_layout_segment *lseg;

	nfs4_stateid stateid;

	u32 current_seqid;

	bool found = false, layoutreturn = false;

	bool layoutreturn = false;



	spin_lock(&ino->i_lock);

	list_for_each_entry(lseg, &nfsi->layout->plh_segs, pls_list)

		if (test_bit(NFS_LSEG_ROC, &lseg->pls_flags)) {

			rpc_sleep_on(&NFS_SERVER(ino)->roc_rpcwaitq, task, NULL);

			found = true;

			goto out;

			spin_unlock(&ino->i_lock);

			return true;

		}

	lo = nfsi->layout;

	current_seqid = be32_to_cpu(lo->plh_stateid.seqid);
@@ -1162,23 +1162,21 @@ bool pnfs_roc_drain(struct inode *ino, u32 *barrier, struct rpc_task *task) 
	 * a barrier, we choose the worst-case barrier.

	 */

	*barrier = current_seqid + atomic_read(&lo->plh_outstanding);

out:

	if (!found) {

	stateid = lo->plh_stateid;

		layoutreturn =

			test_and_clear_bit(NFS_LAYOUT_RETURN_BEFORE_CLOSE,

	layoutreturn = test_and_clear_bit(NFS_LAYOUT_RETURN_BEFORE_CLOSE,

					   &lo->plh_flags);

	if (layoutreturn) {

		lo->plh_block_lgets++;

		pnfs_get_layout_hdr(lo);

	}

	}



	spin_unlock(&ino->i_lock);

	if (layoutreturn) {

		rpc_sleep_on(&NFS_SERVER(ino)->roc_rpcwaitq, task, NULL);

		pnfs_send_layoutreturn(lo, stateid, IOMODE_ANY, false);

		return true;

	}

	return found;

	return false;

}



/*