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pnfs: pass ds_commit_idx through the commit path 

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>
This commit is contained in:
Weston Andros Adamson 2014-09-05 18:20:21 -04:00 committed by Tom Haynes
parent 6cccbb6f52
commit b57ff1303a
6 changed files with 24 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
fs/nfs/direct.c
View File

@ -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);
}

3
fs/nfs/filelayout/filelayout.c
View File

@ -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);

6
fs/nfs/internal.h
View File

@ -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);

9
fs/nfs/pnfs.h
View File

@ -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,
@ -389,14 +390,14 @@ 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;
}
@ -574,7 +575,7 @@ 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;
}

4
fs/nfs/pnfs_nfs.c
View File

@ -188,7 +188,7 @@ 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;
@ -247,7 +247,7 @@ 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;

14
fs/nfs/write.c
View File

@ -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:
@ -1560,14 +1561,15 @@ 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,
@ -1598,7 +1600,7 @@ 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;
}