Commit 338d00cf authored by Tom Haynes's avatar Tom Haynes Committed by Trond Myklebust

pnfs: Refactor the *_layout_mark_request_commit to use pnfs_layout_mark_request_commit

The File Layout's filelayout_mark_request_commit() is almost the
Flex File Layout's ff_layout_mark_request_commit(). And that can
be reduced by calling into nfs_request_add_commit_list().
Signed-off-by: default avatarTom Haynes <loghyr@primarydata.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent 487b9b8a
...@@ -960,48 +960,20 @@ filelayout_mark_request_commit(struct nfs_page *req, ...@@ -960,48 +960,20 @@ filelayout_mark_request_commit(struct nfs_page *req,
{ {
struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg); struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
u32 i, j; u32 i, j;
struct list_head *list;
struct pnfs_commit_bucket *buckets;
if (fl->commit_through_mds) { if (fl->commit_through_mds) {
list = &cinfo->mds->list; nfs_request_add_commit_list(req, &cinfo->mds->list, cinfo);
spin_lock(cinfo->lock); } else {
goto mds_commit; /* Note that we are calling nfs4_fl_calc_j_index on each page
} * that ends up being committed to a data server. An attractive
* alternative is to add a field to nfs_write_data and nfs_page
/* Note that we are calling nfs4_fl_calc_j_index on each page * to store the value calculated in filelayout_write_pagelist
* that ends up being committed to a data server. An attractive * and just use that here.
* alternative is to add a field to nfs_write_data and nfs_page
* to store the value calculated in filelayout_write_pagelist
* and just use that here.
*/
j = nfs4_fl_calc_j_index(lseg, req_offset(req));
i = select_bucket_index(fl, j);
spin_lock(cinfo->lock);
buckets = cinfo->ds->buckets;
list = &buckets[i].written;
if (list_empty(list)) {
/* Non-empty buckets hold a reference on the lseg. That ref
* is normally transferred to the COMMIT call and released
* there. It could also be released if the last req is pulled
* off due to a rewrite, in which case it will be done in
* pnfs_generic_clear_request_commit
*/ */
buckets[i].wlseg = pnfs_get_lseg(lseg); j = nfs4_fl_calc_j_index(lseg, req_offset(req));
i = select_bucket_index(fl, j);
pnfs_layout_mark_request_commit(req, lseg, cinfo, i);
} }
set_bit(PG_COMMIT_TO_DS, &req->wb_flags);
cinfo->ds->nwritten++;
mds_commit:
/* nfs_request_add_commit_list(). We need to add req to list without
* dropping cinfo lock.
*/
set_bit(PG_CLEAN, &(req)->wb_flags);
nfs_list_add_request(req, list);
cinfo->mds->ncommit++;
spin_unlock(cinfo->lock);
if (!cinfo->dreq)
nfs_mark_page_unstable(req->wb_page);
} }
static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i) static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i)
......
...@@ -1332,42 +1332,6 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync) ...@@ -1332,42 +1332,6 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
return PNFS_ATTEMPTED; return PNFS_ATTEMPTED;
} }
static void
ff_layout_mark_request_commit(struct nfs_page *req,
struct pnfs_layout_segment *lseg,
struct nfs_commit_info *cinfo,
u32 ds_commit_idx)
{
struct list_head *list;
struct pnfs_commit_bucket *buckets;
spin_lock(cinfo->lock);
buckets = cinfo->ds->buckets;
list = &buckets[ds_commit_idx].written;
if (list_empty(list)) {
/* Non-empty buckets hold a reference on the lseg. That ref
* is normally transferred to the COMMIT call and released
* there. It could also be released if the last req is pulled
* off due to a rewrite, in which case it will be done in
* pnfs_common_clear_request_commit
*/
WARN_ON_ONCE(buckets[ds_commit_idx].wlseg != NULL);
buckets[ds_commit_idx].wlseg = pnfs_get_lseg(lseg);
}
set_bit(PG_COMMIT_TO_DS, &req->wb_flags);
cinfo->ds->nwritten++;
/* nfs_request_add_commit_list(). We need to add req to list without
* dropping cinfo lock.
*/
set_bit(PG_CLEAN, &(req)->wb_flags);
nfs_list_add_request(req, list);
cinfo->mds->ncommit++;
spin_unlock(cinfo->lock);
if (!cinfo->dreq)
nfs_mark_page_unstable(req->wb_page);
}
static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i) static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i)
{ {
return i; return i;
...@@ -1535,7 +1499,7 @@ static struct pnfs_layoutdriver_type flexfilelayout_type = { ...@@ -1535,7 +1499,7 @@ static struct pnfs_layoutdriver_type flexfilelayout_type = {
.pg_write_ops = &ff_layout_pg_write_ops, .pg_write_ops = &ff_layout_pg_write_ops,
.get_ds_info = ff_layout_get_ds_info, .get_ds_info = ff_layout_get_ds_info,
.free_deviceid_node = ff_layout_free_deveiceid_node, .free_deviceid_node = ff_layout_free_deveiceid_node,
.mark_request_commit = ff_layout_mark_request_commit, .mark_request_commit = pnfs_layout_mark_request_commit,
.clear_request_commit = pnfs_generic_clear_request_commit, .clear_request_commit = pnfs_generic_clear_request_commit,
.scan_commit_lists = pnfs_generic_scan_commit_lists, .scan_commit_lists = pnfs_generic_scan_commit_lists,
.recover_commit_reqs = pnfs_generic_recover_commit_reqs, .recover_commit_reqs = pnfs_generic_recover_commit_reqs,
......
...@@ -344,6 +344,10 @@ void nfs4_pnfs_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds, ...@@ -344,6 +344,10 @@ void nfs4_pnfs_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds,
struct nfs4_pnfs_ds_addr *nfs4_decode_mp_ds_addr(struct net *net, struct nfs4_pnfs_ds_addr *nfs4_decode_mp_ds_addr(struct net *net,
struct xdr_stream *xdr, struct xdr_stream *xdr,
gfp_t gfp_flags); gfp_t gfp_flags);
void pnfs_layout_mark_request_commit(struct nfs_page *req,
struct pnfs_layout_segment *lseg,
struct nfs_commit_info *cinfo,
u32 ds_commit_idx);
static inline bool nfs_have_layout(struct inode *inode) static inline bool nfs_have_layout(struct inode *inode)
{ {
......
...@@ -838,3 +838,33 @@ nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags) ...@@ -838,3 +838,33 @@ nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags)
return NULL; return NULL;
} }
EXPORT_SYMBOL_GPL(nfs4_decode_mp_ds_addr); EXPORT_SYMBOL_GPL(nfs4_decode_mp_ds_addr);
void
pnfs_layout_mark_request_commit(struct nfs_page *req,
struct pnfs_layout_segment *lseg,
struct nfs_commit_info *cinfo,
u32 ds_commit_idx)
{
struct list_head *list;
struct pnfs_commit_bucket *buckets;
spin_lock(cinfo->lock);
buckets = cinfo->ds->buckets;
list = &buckets[ds_commit_idx].written;
if (list_empty(list)) {
/* Non-empty buckets hold a reference on the lseg. That ref
* is normally transferred to the COMMIT call and released
* there. It could also be released if the last req is pulled
* off due to a rewrite, in which case it will be done in
* pnfs_common_clear_request_commit
*/
WARN_ON_ONCE(buckets[ds_commit_idx].wlseg != NULL);
buckets[ds_commit_idx].wlseg = pnfs_get_lseg(lseg);
}
set_bit(PG_COMMIT_TO_DS, &req->wb_flags);
cinfo->ds->nwritten++;
spin_unlock(cinfo->lock);
nfs_request_add_commit_list(req, list, cinfo);
}
EXPORT_SYMBOL_GPL(pnfs_layout_mark_request_commit);
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