diff mbox

[v3,34/49] pnfs: pass ds_commit_idx through the commit path

Message ID 1420590534-84063-35-git-send-email-loghyr@primarydata.com (mailing list archive)
State New, archived
Headers show

Commit Message

Thomas Haynes Jan. 7, 2015, 12:28 a.m. UTC
From: Weston Andros Adamson <dros@primarydata.com>

Pass ds_commit_idx through the nfs commit path. It's used to select
the commit bucket when using pnfs and is ignored when not using pnfs.
Several functions had to be changed: nfs_retry_commit,
nfs_mark_request_commit, pnfs_mark_request_commit and the pnfs layout
driver .mark_request_commit functions.

Signed-off-by: Tom Haynes <loghyr@primarydata.com>
---
 fs/nfs/direct.c                |  5 +++--
 fs/nfs/filelayout/filelayout.c |  3 ++-
 fs/nfs/internal.h              |  6 ++++--
 fs/nfs/pnfs.h                  |  9 +++++----
 fs/nfs/pnfs_nfsio.c            |  4 ++--
 fs/nfs/write.c                 | 14 ++++++++------
 6 files changed, 24 insertions(+), 17 deletions(-)

Comments

Schumaker, Anna Jan. 13, 2015, 3:37 p.m. UTC | #1
Hi Dros,

On 01/06/2015 07:28 PM, Tom Haynes wrote:
> From: Weston Andros Adamson <dros@primarydata.com>
> 
> Pass ds_commit_idx through the nfs commit path. It's used to select
> the commit bucket when using pnfs and is ignored when not using pnfs.
> Several functions had to be changed: nfs_retry_commit,
> nfs_mark_request_commit, pnfs_mark_request_commit and the pnfs layout
> driver .mark_request_commit functions.

We're already passing the struct nfs_commit_info everywhere with these functions.  Would it make sense to add ds_commit_index as another field in the commit info?

Thanks,
Anna

> 
> Signed-off-by: Tom Haynes <loghyr@primarydata.com>
> ---
>  fs/nfs/direct.c                |  5 +++--
>  fs/nfs/filelayout/filelayout.c |  3 ++-
>  fs/nfs/internal.h              |  6 ++++--
>  fs/nfs/pnfs.h                  |  9 +++++----
>  fs/nfs/pnfs_nfsio.c            |  4 ++--
>  fs/nfs/write.c                 | 14 ++++++++------
>  6 files changed, 24 insertions(+), 17 deletions(-)
> 
> diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
> index d7c2d43..1ee41d7 100644
> --- a/fs/nfs/direct.c
> +++ b/fs/nfs/direct.c
> @@ -649,7 +649,7 @@ static void nfs_direct_commit_complete(struct nfs_commit_data *data)
>  		nfs_list_remove_request(req);
>  		if (dreq->flags == NFS_ODIRECT_RESCHED_WRITES) {
>  			/* Note the rewrite will go through mds */
> -			nfs_mark_request_commit(req, NULL, &cinfo);
> +			nfs_mark_request_commit(req, NULL, &cinfo, 0);
>  		} else
>  			nfs_release_request(req);
>  		nfs_unlock_and_release_request(req);
> @@ -748,7 +748,8 @@ static void nfs_direct_write_completion(struct nfs_pgio_header *hdr)
>  		nfs_list_remove_request(req);
>  		if (request_commit) {
>  			kref_get(&req->wb_kref);
> -			nfs_mark_request_commit(req, hdr->lseg, &cinfo);
> +			nfs_mark_request_commit(req, hdr->lseg, &cinfo,
> +				hdr->ds_commit_idx);
>  		}
>  		nfs_unlock_and_release_request(req);
>  	}
> diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
> index 520cbc5..3c97694 100644
> --- a/fs/nfs/filelayout/filelayout.c
> +++ b/fs/nfs/filelayout/filelayout.c
> @@ -954,7 +954,8 @@ static u32 select_bucket_index(struct nfs4_filelayout_segment *fl, u32 j)
>  static void
>  filelayout_mark_request_commit(struct nfs_page *req,
>  			       struct pnfs_layout_segment *lseg,
> -			       struct nfs_commit_info *cinfo)
> +			       struct nfs_commit_info *cinfo,
> +			       u32 ds_commit_idx)
>  
>  {
>  	struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
> diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
> index e9305e9..05f9a87 100644
> --- a/fs/nfs/internal.h
> +++ b/fs/nfs/internal.h
> @@ -450,13 +450,15 @@ int nfs_scan_commit(struct inode *inode, struct list_head *dst,
>  		    struct nfs_commit_info *cinfo);
>  void nfs_mark_request_commit(struct nfs_page *req,
>  			     struct pnfs_layout_segment *lseg,
> -			     struct nfs_commit_info *cinfo);
> +			     struct nfs_commit_info *cinfo,
> +			     u32 ds_commit_idx);
>  int nfs_write_need_commit(struct nfs_pgio_header *);
>  int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
>  			    int how, struct nfs_commit_info *cinfo);
>  void nfs_retry_commit(struct list_head *page_list,
>  		      struct pnfs_layout_segment *lseg,
> -		      struct nfs_commit_info *cinfo);
> +		      struct nfs_commit_info *cinfo,
> +		      u32 ds_commit_idx);
>  void nfs_commitdata_release(struct nfs_commit_data *data);
>  void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
>  				 struct nfs_commit_info *cinfo);
> diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
> index d3cbb6e..ebb4e82 100644
> --- a/fs/nfs/pnfs.h
> +++ b/fs/nfs/pnfs.h
> @@ -137,7 +137,8 @@ struct pnfs_layoutdriver_type {
>  	struct pnfs_ds_commit_info *(*get_ds_info) (struct inode *inode);
>  	void (*mark_request_commit) (struct nfs_page *req,
>  				     struct pnfs_layout_segment *lseg,
> -				     struct nfs_commit_info *cinfo);
> +				     struct nfs_commit_info *cinfo,
> +				     u32 ds_commit_idx);
>  	void (*clear_request_commit) (struct nfs_page *req,
>  				      struct nfs_commit_info *cinfo);
>  	int (*scan_commit_lists) (struct nfs_commit_info *cinfo,
> @@ -388,14 +389,14 @@ pnfs_generic_mark_devid_invalid(struct nfs4_deviceid_node *node)
>  
>  static inline bool
>  pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
> -			 struct nfs_commit_info *cinfo)
> +			 struct nfs_commit_info *cinfo, u32 ds_commit_idx)
>  {
>  	struct inode *inode = req->wb_context->dentry->d_inode;
>  	struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
>  
>  	if (lseg == NULL || ld->mark_request_commit == NULL)
>  		return false;
> -	ld->mark_request_commit(req, lseg, cinfo);
> +	ld->mark_request_commit(req, lseg, cinfo, ds_commit_idx);
>  	return true;
>  }
>  
> @@ -573,7 +574,7 @@ pnfs_get_ds_info(struct inode *inode)
>  
>  static inline bool
>  pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
> -			 struct nfs_commit_info *cinfo)
> +			 struct nfs_commit_info *cinfo, u32 ds_commit_idx)
>  {
>  	return false;
>  }
> diff --git a/fs/nfs/pnfs_nfsio.c b/fs/nfs/pnfs_nfsio.c
> index c6c3efc..842258e 100644
> --- a/fs/nfs/pnfs_nfsio.c
> +++ b/fs/nfs/pnfs_nfsio.c
> @@ -183,7 +183,7 @@ static void pnfs_generic_retry_commit(struct nfs_commit_info *cinfo, int idx)
>  		bucket = &fl_cinfo->buckets[i];
>  		if (list_empty(&bucket->committing))
>  			continue;
> -		nfs_retry_commit(&bucket->committing, bucket->clseg, cinfo);
> +		nfs_retry_commit(&bucket->committing, bucket->clseg, cinfo, i);
>  		spin_lock(cinfo->lock);
>  		freeme = bucket->clseg;
>  		bucket->clseg = NULL;
> @@ -242,7 +242,7 @@ pnfs_generic_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
>  			list_add(&data->pages, &list);
>  			nreq++;
>  		} else {
> -			nfs_retry_commit(mds_pages, NULL, cinfo);
> +			nfs_retry_commit(mds_pages, NULL, cinfo, 0);
>  			pnfs_generic_retry_commit(cinfo, 0);
>  			cinfo->completion_ops->error_cleanup(NFS_I(inode));
>  			return -ENOMEM;
> diff --git a/fs/nfs/write.c b/fs/nfs/write.c
> index a6eadac..db802d9 100644
> --- a/fs/nfs/write.c
> +++ b/fs/nfs/write.c
> @@ -847,9 +847,9 @@ EXPORT_SYMBOL_GPL(nfs_init_cinfo);
>   */
>  void
>  nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
> -			struct nfs_commit_info *cinfo)
> +			struct nfs_commit_info *cinfo, u32 ds_commit_idx)
>  {
> -	if (pnfs_mark_request_commit(req, lseg, cinfo))
> +	if (pnfs_mark_request_commit(req, lseg, cinfo, ds_commit_idx))
>  		return;
>  	nfs_request_add_commit_list(req, &cinfo->mds->list, cinfo);
>  }
> @@ -905,7 +905,8 @@ static void nfs_write_completion(struct nfs_pgio_header *hdr)
>  		}
>  		if (nfs_write_need_commit(hdr)) {
>  			memcpy(&req->wb_verf, &hdr->verf.verifier, sizeof(req->wb_verf));
> -			nfs_mark_request_commit(req, hdr->lseg, &cinfo);
> +			nfs_mark_request_commit(req, hdr->lseg, &cinfo,
> +				0);
>  			goto next;
>  		}
>  remove_req:
> @@ -1561,14 +1562,15 @@ EXPORT_SYMBOL_GPL(nfs_init_commit);
>  
>  void nfs_retry_commit(struct list_head *page_list,
>  		      struct pnfs_layout_segment *lseg,
> -		      struct nfs_commit_info *cinfo)
> +		      struct nfs_commit_info *cinfo,
> +		      u32 ds_commit_idx)
>  {
>  	struct nfs_page *req;
>  
>  	while (!list_empty(page_list)) {
>  		req = nfs_list_entry(page_list->next);
>  		nfs_list_remove_request(req);
> -		nfs_mark_request_commit(req, lseg, cinfo);
> +		nfs_mark_request_commit(req, lseg, cinfo, ds_commit_idx);
>  		if (!cinfo->dreq) {
>  			dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
>  			dec_bdi_stat(page_file_mapping(req->wb_page)->backing_dev_info,
> @@ -1599,7 +1601,7 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how,
>  	return nfs_initiate_commit(NFS_CLIENT(inode), data, NFS_PROTO(inode),
>  				   data->mds_ops, how, 0);
>   out_bad:
> -	nfs_retry_commit(head, NULL, cinfo);
> +	nfs_retry_commit(head, NULL, cinfo, 0);
>  	cinfo->completion_ops->error_cleanup(NFS_I(inode));
>  	return -ENOMEM;
>  }
> 

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Weston Andros Adamson Jan. 13, 2015, 4:10 p.m. UTC | #2
> On Jan 13, 2015, at 10:37 AM, Anna Schumaker <Anna.Schumaker@netapp.com> wrote:
> 
> Hi Dros,
> 
> On 01/06/2015 07:28 PM, Tom Haynes wrote:
>> From: Weston Andros Adamson <dros@primarydata.com>
>> 
>> Pass ds_commit_idx through the nfs commit path. It's used to select
>> the commit bucket when using pnfs and is ignored when not using pnfs.
>> Several functions had to be changed: nfs_retry_commit,
>> nfs_mark_request_commit, pnfs_mark_request_commit and the pnfs layout
>> driver .mark_request_commit functions.
> 
> We're already passing the struct nfs_commit_info everywhere with these functions.  Would it make sense to add ds_commit_index as another field in the commit info?

That might work. I kind of remember there being a reason that it wouldn’t work,
but I can’t think of it now.

I should have some time later this week to give it a shot.

-dros

> 
>> 
>> Signed-off-by: Tom Haynes <loghyr@primarydata.com>
>> ---
>> fs/nfs/direct.c                |  5 +++--
>> fs/nfs/filelayout/filelayout.c |  3 ++-
>> fs/nfs/internal.h              |  6 ++++--
>> fs/nfs/pnfs.h                  |  9 +++++----
>> fs/nfs/pnfs_nfsio.c            |  4 ++--
>> fs/nfs/write.c                 | 14 ++++++++------
>> 6 files changed, 24 insertions(+), 17 deletions(-)
>> 
>> diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
>> index d7c2d43..1ee41d7 100644
>> --- a/fs/nfs/direct.c
>> +++ b/fs/nfs/direct.c
>> @@ -649,7 +649,7 @@ static void nfs_direct_commit_complete(struct nfs_commit_data *data)
>> 		nfs_list_remove_request(req);
>> 		if (dreq->flags == NFS_ODIRECT_RESCHED_WRITES) {
>> 			/* Note the rewrite will go through mds */
>> -			nfs_mark_request_commit(req, NULL, &cinfo);
>> +			nfs_mark_request_commit(req, NULL, &cinfo, 0);
>> 		} else
>> 			nfs_release_request(req);
>> 		nfs_unlock_and_release_request(req);
>> @@ -748,7 +748,8 @@ static void nfs_direct_write_completion(struct nfs_pgio_header *hdr)
>> 		nfs_list_remove_request(req);
>> 		if (request_commit) {
>> 			kref_get(&req->wb_kref);
>> -			nfs_mark_request_commit(req, hdr->lseg, &cinfo);
>> +			nfs_mark_request_commit(req, hdr->lseg, &cinfo,
>> +				hdr->ds_commit_idx);
>> 		}
>> 		nfs_unlock_and_release_request(req);
>> 	}
>> diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
>> index 520cbc5..3c97694 100644
>> --- a/fs/nfs/filelayout/filelayout.c
>> +++ b/fs/nfs/filelayout/filelayout.c
>> @@ -954,7 +954,8 @@ static u32 select_bucket_index(struct nfs4_filelayout_segment *fl, u32 j)
>> static void
>> filelayout_mark_request_commit(struct nfs_page *req,
>> 			       struct pnfs_layout_segment *lseg,
>> -			       struct nfs_commit_info *cinfo)
>> +			       struct nfs_commit_info *cinfo,
>> +			       u32 ds_commit_idx)
>> 
>> {
>> 	struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
>> diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
>> index e9305e9..05f9a87 100644
>> --- a/fs/nfs/internal.h
>> +++ b/fs/nfs/internal.h
>> @@ -450,13 +450,15 @@ int nfs_scan_commit(struct inode *inode, struct list_head *dst,
>> 		    struct nfs_commit_info *cinfo);
>> void nfs_mark_request_commit(struct nfs_page *req,
>> 			     struct pnfs_layout_segment *lseg,
>> -			     struct nfs_commit_info *cinfo);
>> +			     struct nfs_commit_info *cinfo,
>> +			     u32 ds_commit_idx);
>> int nfs_write_need_commit(struct nfs_pgio_header *);
>> int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
>> 			    int how, struct nfs_commit_info *cinfo);
>> void nfs_retry_commit(struct list_head *page_list,
>> 		      struct pnfs_layout_segment *lseg,
>> -		      struct nfs_commit_info *cinfo);
>> +		      struct nfs_commit_info *cinfo,
>> +		      u32 ds_commit_idx);
>> void nfs_commitdata_release(struct nfs_commit_data *data);
>> void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
>> 				 struct nfs_commit_info *cinfo);
>> diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
>> index d3cbb6e..ebb4e82 100644
>> --- a/fs/nfs/pnfs.h
>> +++ b/fs/nfs/pnfs.h
>> @@ -137,7 +137,8 @@ struct pnfs_layoutdriver_type {
>> 	struct pnfs_ds_commit_info *(*get_ds_info) (struct inode *inode);
>> 	void (*mark_request_commit) (struct nfs_page *req,
>> 				     struct pnfs_layout_segment *lseg,
>> -				     struct nfs_commit_info *cinfo);
>> +				     struct nfs_commit_info *cinfo,
>> +				     u32 ds_commit_idx);
>> 	void (*clear_request_commit) (struct nfs_page *req,
>> 				      struct nfs_commit_info *cinfo);
>> 	int (*scan_commit_lists) (struct nfs_commit_info *cinfo,
>> @@ -388,14 +389,14 @@ pnfs_generic_mark_devid_invalid(struct nfs4_deviceid_node *node)
>> 
>> static inline bool
>> pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
>> -			 struct nfs_commit_info *cinfo)
>> +			 struct nfs_commit_info *cinfo, u32 ds_commit_idx)
>> {
>> 	struct inode *inode = req->wb_context->dentry->d_inode;
>> 	struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
>> 
>> 	if (lseg == NULL || ld->mark_request_commit == NULL)
>> 		return false;
>> -	ld->mark_request_commit(req, lseg, cinfo);
>> +	ld->mark_request_commit(req, lseg, cinfo, ds_commit_idx);
>> 	return true;
>> }
>> 
>> @@ -573,7 +574,7 @@ pnfs_get_ds_info(struct inode *inode)
>> 
>> static inline bool
>> pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
>> -			 struct nfs_commit_info *cinfo)
>> +			 struct nfs_commit_info *cinfo, u32 ds_commit_idx)
>> {
>> 	return false;
>> }
>> diff --git a/fs/nfs/pnfs_nfsio.c b/fs/nfs/pnfs_nfsio.c
>> index c6c3efc..842258e 100644
>> --- a/fs/nfs/pnfs_nfsio.c
>> +++ b/fs/nfs/pnfs_nfsio.c
>> @@ -183,7 +183,7 @@ static void pnfs_generic_retry_commit(struct nfs_commit_info *cinfo, int idx)
>> 		bucket = &fl_cinfo->buckets[i];
>> 		if (list_empty(&bucket->committing))
>> 			continue;
>> -		nfs_retry_commit(&bucket->committing, bucket->clseg, cinfo);
>> +		nfs_retry_commit(&bucket->committing, bucket->clseg, cinfo, i);
>> 		spin_lock(cinfo->lock);
>> 		freeme = bucket->clseg;
>> 		bucket->clseg = NULL;
>> @@ -242,7 +242,7 @@ pnfs_generic_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
>> 			list_add(&data->pages, &list);
>> 			nreq++;
>> 		} else {
>> -			nfs_retry_commit(mds_pages, NULL, cinfo);
>> +			nfs_retry_commit(mds_pages, NULL, cinfo, 0);
>> 			pnfs_generic_retry_commit(cinfo, 0);
>> 			cinfo->completion_ops->error_cleanup(NFS_I(inode));
>> 			return -ENOMEM;
>> diff --git a/fs/nfs/write.c b/fs/nfs/write.c
>> index a6eadac..db802d9 100644
>> --- a/fs/nfs/write.c
>> +++ b/fs/nfs/write.c
>> @@ -847,9 +847,9 @@ EXPORT_SYMBOL_GPL(nfs_init_cinfo);
>>  */
>> void
>> nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
>> -			struct nfs_commit_info *cinfo)
>> +			struct nfs_commit_info *cinfo, u32 ds_commit_idx)
>> {
>> -	if (pnfs_mark_request_commit(req, lseg, cinfo))
>> +	if (pnfs_mark_request_commit(req, lseg, cinfo, ds_commit_idx))
>> 		return;
>> 	nfs_request_add_commit_list(req, &cinfo->mds->list, cinfo);
>> }
>> @@ -905,7 +905,8 @@ static void nfs_write_completion(struct nfs_pgio_header *hdr)
>> 		}
>> 		if (nfs_write_need_commit(hdr)) {
>> 			memcpy(&req->wb_verf, &hdr->verf.verifier, sizeof(req->wb_verf));
>> -			nfs_mark_request_commit(req, hdr->lseg, &cinfo);
>> +			nfs_mark_request_commit(req, hdr->lseg, &cinfo,
>> +				0);
>> 			goto next;
>> 		}
>> remove_req:
>> @@ -1561,14 +1562,15 @@ EXPORT_SYMBOL_GPL(nfs_init_commit);
>> 
>> void nfs_retry_commit(struct list_head *page_list,
>> 		      struct pnfs_layout_segment *lseg,
>> -		      struct nfs_commit_info *cinfo)
>> +		      struct nfs_commit_info *cinfo,
>> +		      u32 ds_commit_idx)
>> {
>> 	struct nfs_page *req;
>> 
>> 	while (!list_empty(page_list)) {
>> 		req = nfs_list_entry(page_list->next);
>> 		nfs_list_remove_request(req);
>> -		nfs_mark_request_commit(req, lseg, cinfo);
>> +		nfs_mark_request_commit(req, lseg, cinfo, ds_commit_idx);
>> 		if (!cinfo->dreq) {
>> 			dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
>> 			dec_bdi_stat(page_file_mapping(req->wb_page)->backing_dev_info,
>> @@ -1599,7 +1601,7 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how,
>> 	return nfs_initiate_commit(NFS_CLIENT(inode), data, NFS_PROTO(inode),
>> 				   data->mds_ops, how, 0);
>>  out_bad:
>> -	nfs_retry_commit(head, NULL, cinfo);
>> +	nfs_retry_commit(head, NULL, cinfo, 0);
>> 	cinfo->completion_ops->error_cleanup(NFS_I(inode));
>> 	return -ENOMEM;
>> }
>> 
> 
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diff mbox

Patch

diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index d7c2d43..1ee41d7 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -649,7 +649,7 @@  static void nfs_direct_commit_complete(struct nfs_commit_data *data)
 		nfs_list_remove_request(req);
 		if (dreq->flags == NFS_ODIRECT_RESCHED_WRITES) {
 			/* Note the rewrite will go through mds */
-			nfs_mark_request_commit(req, NULL, &cinfo);
+			nfs_mark_request_commit(req, NULL, &cinfo, 0);
 		} else
 			nfs_release_request(req);
 		nfs_unlock_and_release_request(req);
@@ -748,7 +748,8 @@  static void nfs_direct_write_completion(struct nfs_pgio_header *hdr)
 		nfs_list_remove_request(req);
 		if (request_commit) {
 			kref_get(&req->wb_kref);
-			nfs_mark_request_commit(req, hdr->lseg, &cinfo);
+			nfs_mark_request_commit(req, hdr->lseg, &cinfo,
+				hdr->ds_commit_idx);
 		}
 		nfs_unlock_and_release_request(req);
 	}
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 520cbc5..3c97694 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -954,7 +954,8 @@  static u32 select_bucket_index(struct nfs4_filelayout_segment *fl, u32 j)
 static void
 filelayout_mark_request_commit(struct nfs_page *req,
 			       struct pnfs_layout_segment *lseg,
-			       struct nfs_commit_info *cinfo)
+			       struct nfs_commit_info *cinfo,
+			       u32 ds_commit_idx)
 
 {
 	struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index e9305e9..05f9a87 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -450,13 +450,15 @@  int nfs_scan_commit(struct inode *inode, struct list_head *dst,
 		    struct nfs_commit_info *cinfo);
 void nfs_mark_request_commit(struct nfs_page *req,
 			     struct pnfs_layout_segment *lseg,
-			     struct nfs_commit_info *cinfo);
+			     struct nfs_commit_info *cinfo,
+			     u32 ds_commit_idx);
 int nfs_write_need_commit(struct nfs_pgio_header *);
 int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
 			    int how, struct nfs_commit_info *cinfo);
 void nfs_retry_commit(struct list_head *page_list,
 		      struct pnfs_layout_segment *lseg,
-		      struct nfs_commit_info *cinfo);
+		      struct nfs_commit_info *cinfo,
+		      u32 ds_commit_idx);
 void nfs_commitdata_release(struct nfs_commit_data *data);
 void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
 				 struct nfs_commit_info *cinfo);
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index d3cbb6e..ebb4e82 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -137,7 +137,8 @@  struct pnfs_layoutdriver_type {
 	struct pnfs_ds_commit_info *(*get_ds_info) (struct inode *inode);
 	void (*mark_request_commit) (struct nfs_page *req,
 				     struct pnfs_layout_segment *lseg,
-				     struct nfs_commit_info *cinfo);
+				     struct nfs_commit_info *cinfo,
+				     u32 ds_commit_idx);
 	void (*clear_request_commit) (struct nfs_page *req,
 				      struct nfs_commit_info *cinfo);
 	int (*scan_commit_lists) (struct nfs_commit_info *cinfo,
@@ -388,14 +389,14 @@  pnfs_generic_mark_devid_invalid(struct nfs4_deviceid_node *node)
 
 static inline bool
 pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
-			 struct nfs_commit_info *cinfo)
+			 struct nfs_commit_info *cinfo, u32 ds_commit_idx)
 {
 	struct inode *inode = req->wb_context->dentry->d_inode;
 	struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
 
 	if (lseg == NULL || ld->mark_request_commit == NULL)
 		return false;
-	ld->mark_request_commit(req, lseg, cinfo);
+	ld->mark_request_commit(req, lseg, cinfo, ds_commit_idx);
 	return true;
 }
 
@@ -573,7 +574,7 @@  pnfs_get_ds_info(struct inode *inode)
 
 static inline bool
 pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
-			 struct nfs_commit_info *cinfo)
+			 struct nfs_commit_info *cinfo, u32 ds_commit_idx)
 {
 	return false;
 }
diff --git a/fs/nfs/pnfs_nfsio.c b/fs/nfs/pnfs_nfsio.c
index c6c3efc..842258e 100644
--- a/fs/nfs/pnfs_nfsio.c
+++ b/fs/nfs/pnfs_nfsio.c
@@ -183,7 +183,7 @@  static void pnfs_generic_retry_commit(struct nfs_commit_info *cinfo, int idx)
 		bucket = &fl_cinfo->buckets[i];
 		if (list_empty(&bucket->committing))
 			continue;
-		nfs_retry_commit(&bucket->committing, bucket->clseg, cinfo);
+		nfs_retry_commit(&bucket->committing, bucket->clseg, cinfo, i);
 		spin_lock(cinfo->lock);
 		freeme = bucket->clseg;
 		bucket->clseg = NULL;
@@ -242,7 +242,7 @@  pnfs_generic_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
 			list_add(&data->pages, &list);
 			nreq++;
 		} else {
-			nfs_retry_commit(mds_pages, NULL, cinfo);
+			nfs_retry_commit(mds_pages, NULL, cinfo, 0);
 			pnfs_generic_retry_commit(cinfo, 0);
 			cinfo->completion_ops->error_cleanup(NFS_I(inode));
 			return -ENOMEM;
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index a6eadac..db802d9 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -847,9 +847,9 @@  EXPORT_SYMBOL_GPL(nfs_init_cinfo);
  */
 void
 nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
-			struct nfs_commit_info *cinfo)
+			struct nfs_commit_info *cinfo, u32 ds_commit_idx)
 {
-	if (pnfs_mark_request_commit(req, lseg, cinfo))
+	if (pnfs_mark_request_commit(req, lseg, cinfo, ds_commit_idx))
 		return;
 	nfs_request_add_commit_list(req, &cinfo->mds->list, cinfo);
 }
@@ -905,7 +905,8 @@  static void nfs_write_completion(struct nfs_pgio_header *hdr)
 		}
 		if (nfs_write_need_commit(hdr)) {
 			memcpy(&req->wb_verf, &hdr->verf.verifier, sizeof(req->wb_verf));
-			nfs_mark_request_commit(req, hdr->lseg, &cinfo);
+			nfs_mark_request_commit(req, hdr->lseg, &cinfo,
+				0);
 			goto next;
 		}
 remove_req:
@@ -1561,14 +1562,15 @@  EXPORT_SYMBOL_GPL(nfs_init_commit);
 
 void nfs_retry_commit(struct list_head *page_list,
 		      struct pnfs_layout_segment *lseg,
-		      struct nfs_commit_info *cinfo)
+		      struct nfs_commit_info *cinfo,
+		      u32 ds_commit_idx)
 {
 	struct nfs_page *req;
 
 	while (!list_empty(page_list)) {
 		req = nfs_list_entry(page_list->next);
 		nfs_list_remove_request(req);
-		nfs_mark_request_commit(req, lseg, cinfo);
+		nfs_mark_request_commit(req, lseg, cinfo, ds_commit_idx);
 		if (!cinfo->dreq) {
 			dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
 			dec_bdi_stat(page_file_mapping(req->wb_page)->backing_dev_info,
@@ -1599,7 +1601,7 @@  nfs_commit_list(struct inode *inode, struct list_head *head, int how,
 	return nfs_initiate_commit(NFS_CLIENT(inode), data, NFS_PROTO(inode),
 				   data->mds_ops, how, 0);
  out_bad:
-	nfs_retry_commit(head, NULL, cinfo);
+	nfs_retry_commit(head, NULL, cinfo, 0);
 	cinfo->completion_ops->error_cleanup(NFS_I(inode));
 	return -ENOMEM;
 }