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Commit 0b7c0153 authored by Fred Isaman's avatar Fred Isaman Committed by Trond Myklebust
Browse files

NFS: add a struct nfs_commit_data to replace nfs_write_data in commits 



Commits don't need the vectors of pages, etc. that writes do. Split out
a separate structure for the commit operation.

Signed-off-by: default avatarFred Isaman <iisaman@netapp.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 799ba8d5

fs/nfs/direct.c

+7 −10
Original line number Diff line number Diff line
@@ -82,7 +82,7 @@ struct nfs_direct_req { 


	/* commit state */

	struct list_head	rewrite_list;	/* saved nfs_write_data structs */

	struct nfs_write_data *	commit_data;	/* special write_data for commits */

	struct nfs_commit_data *commit_data;	/* special write_data for commits */

	int			flags;

#define NFS_ODIRECT_DO_COMMIT		(1)	/* an unstable reply was received */

#define NFS_ODIRECT_RESCHED_WRITES	(2)	/* write verification failed */
@@ -524,7 +524,7 @@ static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq) 


static void nfs_direct_commit_result(struct rpc_task *task, void *calldata)

{

	struct nfs_write_data *data = calldata;

	struct nfs_commit_data *data = calldata;



	/* Call the NFS version-specific code */

	NFS_PROTO(data->inode)->commit_done(task, data);
@@ -532,8 +532,8 @@ static void nfs_direct_commit_result(struct rpc_task *task, void *calldata) 


static void nfs_direct_commit_release(void *calldata)

{

	struct nfs_write_data *data = calldata;

	struct nfs_direct_req *dreq = (struct nfs_direct_req *) data->req;

	struct nfs_commit_data *data = calldata;

	struct nfs_direct_req *dreq = data->dreq;

	int status = data->task.tk_status;



	if (status < 0) {
@@ -551,14 +551,14 @@ static void nfs_direct_commit_release(void *calldata) 
}



static const struct rpc_call_ops nfs_commit_direct_ops = {

	.rpc_call_prepare = nfs_write_prepare,

	.rpc_call_prepare = nfs_commit_prepare,

	.rpc_call_done = nfs_direct_commit_result,

	.rpc_release = nfs_direct_commit_release,

};



static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq)

{

	struct nfs_write_data *data = dreq->commit_data;

	struct nfs_commit_data *data = dreq->commit_data;

	struct rpc_task *task;

	struct rpc_message msg = {

		.rpc_argp = &data->args,
@@ -581,9 +581,6 @@ static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq) 
	data->args.fh = NFS_FH(data->inode);

	data->args.offset = 0;

	data->args.count = 0;

	data->args.context = dreq->ctx;

	data->args.lock_context = dreq->l_ctx;

	data->res.count = 0;

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

	data->res.verf = &data->verf;

	nfs_fattr_init(&data->fattr);
@@ -625,7 +622,7 @@ static void nfs_alloc_commit_data(struct nfs_direct_req *dreq) 
{

	dreq->commit_data = nfs_commitdata_alloc();

	if (dreq->commit_data != NULL)

		dreq->commit_data->req = (struct nfs_page *) dreq;

		dreq->commit_data->dreq = dreq;

}

#else

static inline void nfs_alloc_commit_data(struct nfs_direct_req *dreq)

fs/nfs/internal.h

+7 −6
Original line number Diff line number Diff line
@@ -314,24 +314,25 @@ extern void nfs_pageio_init_write_mds(struct nfs_pageio_descriptor *pgio, 
				  struct inode *inode, int ioflags);

extern void nfs_pageio_reset_write_mds(struct nfs_pageio_descriptor *pgio);

extern void nfs_writedata_release(struct nfs_write_data *wdata);

extern void nfs_commit_free(struct nfs_write_data *p);

extern void nfs_commit_free(struct nfs_commit_data *p);

extern int nfs_initiate_write(struct nfs_write_data *data,

			      struct rpc_clnt *clnt,

			      const struct rpc_call_ops *call_ops,

			      int how);

extern void nfs_write_prepare(struct rpc_task *task, void *calldata);

extern int nfs_initiate_commit(struct nfs_write_data *data,

			       struct rpc_clnt *clnt,

extern void nfs_commit_prepare(struct rpc_task *task, void *calldata);

extern int nfs_initiate_commit(struct rpc_clnt *clnt,

			       struct nfs_commit_data *data,

			       const struct rpc_call_ops *call_ops,

			       int how);

extern void nfs_init_commit(struct nfs_write_data *data,

extern void nfs_init_commit(struct nfs_commit_data *data,

			    struct list_head *head,

			    struct pnfs_layout_segment *lseg);

void nfs_retry_commit(struct list_head *page_list,

		      struct pnfs_layout_segment *lseg);

void nfs_commit_clear_lock(struct nfs_inode *nfsi);

void nfs_commitdata_release(void *data);

void nfs_commit_release_pages(struct nfs_write_data *data);

void nfs_commitdata_release(struct nfs_commit_data *data);

void nfs_commit_release_pages(struct nfs_commit_data *data);

void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *head);

void nfs_request_remove_commit_list(struct nfs_page *req);

fs/nfs/nfs3proc.c

+8 −2
Original line number Diff line number Diff line
@@ -848,7 +848,12 @@ static void nfs3_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_ 
	rpc_call_start(task);

}



static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data)

static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)

{

	rpc_call_start(task);

}



static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data)

{

	if (nfs3_async_handle_jukebox(task, data->inode))

		return -EAGAIN;
@@ -856,7 +861,7 @@ static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data) 
	return 0;

}



static void nfs3_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)

static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)

{

	msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];

}
@@ -907,6 +912,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = { 
	.write_rpc_prepare = nfs3_proc_write_rpc_prepare,

	.write_done	= nfs3_write_done,

	.commit_setup	= nfs3_proc_commit_setup,

	.commit_rpc_prepare = nfs3_proc_commit_rpc_prepare,

	.commit_done	= nfs3_commit_done,

	.lock		= nfs3_proc_lock,

	.clear_acl_cache = nfs3_forget_cached_acls,

fs/nfs/nfs3xdr.c

+3 −3
Original line number Diff line number Diff line
@@ -1287,7 +1287,7 @@ static void nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req, 
 *	};

 */

static void encode_commit3args(struct xdr_stream *xdr,

			       const struct nfs_writeargs *args)

			       const struct nfs_commitargs *args)

{

	__be32 *p;
@@ -1300,7 +1300,7 @@ static void encode_commit3args(struct xdr_stream *xdr, 


static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,

				     struct xdr_stream *xdr,

				     const struct nfs_writeargs *args)

				     const struct nfs_commitargs *args)

{

	encode_commit3args(xdr, args);

}
@@ -2319,7 +2319,7 @@ out_status: 
 */

static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req,

				   struct xdr_stream *xdr,

				   struct nfs_writeres *result)

				   struct nfs_commitres *result)

{

	enum nfs_stat status;

	int error;

fs/nfs/nfs4filelayout.c

+46 −19
Original line number Diff line number Diff line
@@ -250,7 +250,7 @@ static int filelayout_write_done_cb(struct rpc_task *task, 
}



/* Fake up some data that will cause nfs_commit_release to retry the writes. */

static void prepare_to_resend_writes(struct nfs_write_data *data)

static void prepare_to_resend_writes(struct nfs_commit_data *data)

{

	struct nfs_page *first = nfs_list_entry(data->pages.next);
@@ -261,11 +261,11 @@ static void prepare_to_resend_writes(struct nfs_write_data *data) 
}



static int filelayout_commit_done_cb(struct rpc_task *task,

				     struct nfs_write_data *data)

				     struct nfs_commit_data *data)

{

	int reset = 0;



	if (filelayout_async_handle_error(task, data->args.context->state,

	if (filelayout_async_handle_error(task, data->context->state,

					  data->ds_clp, &reset) == -EAGAIN) {

		dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n",

			__func__, data->ds_clp, data->ds_clp->cl_session);
@@ -315,15 +315,42 @@ static void filelayout_write_release(void *data) 
	wdata->mds_ops->rpc_release(data);

}



static void filelayout_commit_release(void *data)

static void filelayout_commit_prepare(struct rpc_task *task, void *data)

{

	struct nfs_write_data *wdata = (struct nfs_write_data *)data;

	struct nfs_commit_data *wdata = data;



	nfs_commit_release_pages(wdata);

	if (atomic_dec_and_test(&NFS_I(wdata->inode)->commits_outstanding))

		nfs_commit_clear_lock(NFS_I(wdata->inode));

	put_lseg(wdata->lseg);

	nfs_commitdata_release(wdata);

	if (nfs41_setup_sequence(wdata->ds_clp->cl_session,

				&wdata->args.seq_args, &wdata->res.seq_res,

				task))

		return;



	rpc_call_start(task);

}



static void filelayout_write_commit_done(struct rpc_task *task, void *data)

{

	struct nfs_commit_data *wdata = data;



	/* Note this may cause RPC to be resent */

	wdata->mds_ops->rpc_call_done(task, data);

}



static void filelayout_commit_count_stats(struct rpc_task *task, void *data)

{

	struct nfs_commit_data *cdata = data;



	rpc_count_iostats(task, NFS_SERVER(cdata->inode)->client->cl_metrics);

}



static void filelayout_commit_release(void *calldata)

{

	struct nfs_commit_data *data = calldata;



	nfs_commit_release_pages(data);

	if (atomic_dec_and_test(&NFS_I(data->inode)->commits_outstanding))

		nfs_commit_clear_lock(NFS_I(data->inode));

	put_lseg(data->lseg);

	nfs_commitdata_release(data);

}



static const struct rpc_call_ops filelayout_read_call_ops = {
@@ -341,9 +368,9 @@ static const struct rpc_call_ops filelayout_write_call_ops = { 
};



static const struct rpc_call_ops filelayout_commit_call_ops = {

	.rpc_call_prepare = filelayout_write_prepare,

	.rpc_call_done = filelayout_write_call_done,

	.rpc_count_stats = filelayout_write_count_stats,

	.rpc_call_prepare = filelayout_commit_prepare,

	.rpc_call_done = filelayout_write_commit_done,

	.rpc_count_stats = filelayout_commit_count_stats,

	.rpc_release = filelayout_commit_release,

};
@@ -922,7 +949,7 @@ select_ds_fh_from_commit(struct pnfs_layout_segment *lseg, u32 i) 
	return flseg->fh_array[i];

}



static int filelayout_initiate_commit(struct nfs_write_data *data, int how)

static int filelayout_initiate_commit(struct nfs_commit_data *data, int how)

{

	struct pnfs_layout_segment *lseg = data->lseg;

	struct nfs4_pnfs_ds *ds;
@@ -941,12 +968,12 @@ static int filelayout_initiate_commit(struct nfs_write_data *data, int how) 
		return -EAGAIN;

	}

	dprintk("%s ino %lu, how %d\n", __func__, data->inode->i_ino, how);

	data->write_done_cb = filelayout_commit_done_cb;

	data->commit_done_cb = filelayout_commit_done_cb;

	data->ds_clp = ds->ds_clp;

	fh = select_ds_fh_from_commit(lseg, data->ds_commit_index);

	if (fh)

		data->args.fh = fh;

	return nfs_initiate_commit(data, ds->ds_clp->cl_rpcclient,

	return nfs_initiate_commit(ds->ds_clp->cl_rpcclient, data,

				   &filelayout_commit_call_ops, how);

}
@@ -1008,7 +1035,7 @@ alloc_ds_commits(struct inode *inode, struct list_head *list) 
{

	struct nfs4_fl_commit_info *fl_cinfo;

	struct nfs4_fl_commit_bucket *bucket;

	struct nfs_write_data *data;

	struct nfs_commit_data *data;

	int i, j;

	unsigned int nreq = 0;
@@ -1044,7 +1071,7 @@ static int 
filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages,

			   int how)

{

	struct nfs_write_data	*data, *tmp;

	struct nfs_commit_data *data, *tmp;

	LIST_HEAD(list);

	unsigned int nreq = 0;
@@ -1071,7 +1098,7 @@ filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages, 
		list_del_init(&data->pages);

		if (!data->lseg) {

			nfs_init_commit(data, mds_pages, NULL);

			nfs_initiate_commit(data, NFS_CLIENT(inode),

			nfs_initiate_commit(NFS_CLIENT(inode), data,

					    data->mds_ops, how);

		} else {

			struct nfs4_fl_commit_info *fl_cinfo;