}
EXPORT_SYMBOL_GPL(pnfs_put_lseg);
+static void pnfs_put_lseg_async_work(struct work_struct *work)
+{
+ struct pnfs_layout_segment *lseg;
+
+ lseg = container_of(work, struct pnfs_layout_segment, pls_work);
+
+ pnfs_put_lseg(lseg);
+}
+
+void
+pnfs_put_lseg_async(struct pnfs_layout_segment *lseg)
+{
+ INIT_WORK(&lseg->pls_work, pnfs_put_lseg_async_work);
+ schedule_work(&lseg->pls_work);
+}
+EXPORT_SYMBOL_GPL(pnfs_put_lseg_async);
+
static u64
end_offset(u64 start, u64 len)
{
}
EXPORT_SYMBOL_GPL(pnfs_generic_pg_test);
-int pnfs_write_done_resend_to_mds(struct inode *inode,
- struct list_head *head,
- const struct nfs_pgio_completion_ops *compl_ops,
- struct nfs_direct_req *dreq)
+int pnfs_write_done_resend_to_mds(struct nfs_pgio_header *hdr)
{
struct nfs_pageio_descriptor pgio;
- LIST_HEAD(failed);
/* Resend all requests through the MDS */
- nfs_pageio_init_write(&pgio, inode, FLUSH_STABLE, true, compl_ops);
- pgio.pg_dreq = dreq;
- while (!list_empty(head)) {
- struct nfs_page *req = nfs_list_entry(head->next);
-
- nfs_list_remove_request(req);
- if (!nfs_pageio_add_request(&pgio, req))
- nfs_list_add_request(req, &failed);
- }
- nfs_pageio_complete(&pgio);
-
- if (!list_empty(&failed)) {
- /* For some reason our attempt to resend pages. Mark the
- * overall send request as having failed, and let
- * nfs_writeback_release_full deal with the error.
- */
- list_move(&failed, head);
- return -EIO;
- }
- return 0;
+ nfs_pageio_init_write(&pgio, hdr->inode, FLUSH_STABLE, true,
+ hdr->completion_ops);
+ return nfs_pageio_resend(&pgio, hdr);
}
EXPORT_SYMBOL_GPL(pnfs_write_done_resend_to_mds);
-static void pnfs_ld_handle_write_error(struct nfs_pgio_data *data)
+static void pnfs_ld_handle_write_error(struct nfs_pgio_header *hdr)
{
- struct nfs_pgio_header *hdr = data->header;
dprintk("pnfs write error = %d\n", hdr->pnfs_error);
if (NFS_SERVER(hdr->inode)->pnfs_curr_ld->flags &
pnfs_return_layout(hdr->inode);
}
if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags))
- data->task.tk_status = pnfs_write_done_resend_to_mds(hdr->inode,
- &hdr->pages,
- hdr->completion_ops,
- hdr->dreq);
+ hdr->task.tk_status = pnfs_write_done_resend_to_mds(hdr);
}
/*
* Called by non rpc-based layout drivers
*/
-void pnfs_ld_write_done(struct nfs_pgio_data *data)
+void pnfs_ld_write_done(struct nfs_pgio_header *hdr)
{
- struct nfs_pgio_header *hdr = data->header;
-
- trace_nfs4_pnfs_write(data, hdr->pnfs_error);
+ trace_nfs4_pnfs_write(hdr, hdr->pnfs_error);
if (!hdr->pnfs_error) {
- pnfs_set_layoutcommit(data);
- hdr->mds_ops->rpc_call_done(&data->task, data);
+ pnfs_set_layoutcommit(hdr);
+ hdr->mds_ops->rpc_call_done(&hdr->task, hdr);
} else
- pnfs_ld_handle_write_error(data);
- hdr->mds_ops->rpc_release(data);
+ pnfs_ld_handle_write_error(hdr);
+ hdr->mds_ops->rpc_release(hdr);
}
EXPORT_SYMBOL_GPL(pnfs_ld_write_done);
static void
pnfs_write_through_mds(struct nfs_pageio_descriptor *desc,
- struct nfs_pgio_data *data)
+ struct nfs_pgio_header *hdr)
{
- struct nfs_pgio_header *hdr = data->header;
-
if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
list_splice_tail_init(&hdr->pages, &desc->pg_list);
nfs_pageio_reset_write_mds(desc);
desc->pg_recoalesce = 1;
}
- nfs_pgio_data_release(data);
+ nfs_pgio_data_destroy(hdr);
}
static enum pnfs_try_status
-pnfs_try_to_write_data(struct nfs_pgio_data *wdata,
+pnfs_try_to_write_data(struct nfs_pgio_header *hdr,
const struct rpc_call_ops *call_ops,
struct pnfs_layout_segment *lseg,
int how)
{
- struct nfs_pgio_header *hdr = wdata->header;
struct inode *inode = hdr->inode;
enum pnfs_try_status trypnfs;
struct nfs_server *nfss = NFS_SERVER(inode);
hdr->mds_ops = call_ops;
dprintk("%s: Writing ino:%lu %u@%llu (how %d)\n", __func__,
- inode->i_ino, wdata->args.count, wdata->args.offset, how);
- trypnfs = nfss->pnfs_curr_ld->write_pagelist(wdata, how);
+ inode->i_ino, hdr->args.count, hdr->args.offset, how);
+ trypnfs = nfss->pnfs_curr_ld->write_pagelist(hdr, how);
if (trypnfs != PNFS_NOT_ATTEMPTED)
nfs_inc_stats(inode, NFSIOS_PNFS_WRITE);
dprintk("%s End (trypnfs:%d)\n", __func__, trypnfs);
pnfs_do_write(struct nfs_pageio_descriptor *desc,
struct nfs_pgio_header *hdr, int how)
{
- struct nfs_pgio_data *data = hdr->data;
const struct rpc_call_ops *call_ops = desc->pg_rpc_callops;
struct pnfs_layout_segment *lseg = desc->pg_lseg;
enum pnfs_try_status trypnfs;
desc->pg_lseg = NULL;
- trypnfs = pnfs_try_to_write_data(data, call_ops, lseg, how);
+ trypnfs = pnfs_try_to_write_data(hdr, call_ops, lseg, how);
if (trypnfs == PNFS_NOT_ATTEMPTED)
- pnfs_write_through_mds(desc, data);
+ pnfs_write_through_mds(desc, hdr);
pnfs_put_lseg(lseg);
}
static void pnfs_writehdr_free(struct nfs_pgio_header *hdr)
{
pnfs_put_lseg(hdr->lseg);
- nfs_rw_header_free(hdr);
+ nfs_pgio_header_free(hdr);
}
EXPORT_SYMBOL_GPL(pnfs_writehdr_free);
int
pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
{
- struct nfs_rw_header *whdr;
struct nfs_pgio_header *hdr;
int ret;
- whdr = nfs_rw_header_alloc(desc->pg_rw_ops);
- if (!whdr) {
+ hdr = nfs_pgio_header_alloc(desc->pg_rw_ops);
+ if (!hdr) {
desc->pg_completion_ops->error_cleanup(&desc->pg_list);
pnfs_put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
return -ENOMEM;
}
- hdr = &whdr->header;
nfs_pgheader_init(desc, hdr, pnfs_writehdr_free);
hdr->lseg = pnfs_get_lseg(desc->pg_lseg);
- atomic_inc(&hdr->refcnt);
ret = nfs_generic_pgio(desc, hdr);
if (ret != 0) {
pnfs_put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
} else
pnfs_do_write(desc, hdr, desc->pg_ioflags);
- if (atomic_dec_and_test(&hdr->refcnt))
- hdr->completion_ops->completion(hdr);
return ret;
}
EXPORT_SYMBOL_GPL(pnfs_generic_pg_writepages);
-int pnfs_read_done_resend_to_mds(struct inode *inode,
- struct list_head *head,
- const struct nfs_pgio_completion_ops *compl_ops,
- struct nfs_direct_req *dreq)
+int pnfs_read_done_resend_to_mds(struct nfs_pgio_header *hdr)
{
struct nfs_pageio_descriptor pgio;
- LIST_HEAD(failed);
/* Resend all requests through the MDS */
- nfs_pageio_init_read(&pgio, inode, true, compl_ops);
- pgio.pg_dreq = dreq;
- while (!list_empty(head)) {
- struct nfs_page *req = nfs_list_entry(head->next);
-
- nfs_list_remove_request(req);
- if (!nfs_pageio_add_request(&pgio, req))
- nfs_list_add_request(req, &failed);
- }
- nfs_pageio_complete(&pgio);
-
- if (!list_empty(&failed)) {
- list_move(&failed, head);
- return -EIO;
- }
- return 0;
+ nfs_pageio_init_read(&pgio, hdr->inode, true, hdr->completion_ops);
+ return nfs_pageio_resend(&pgio, hdr);
}
EXPORT_SYMBOL_GPL(pnfs_read_done_resend_to_mds);
-static void pnfs_ld_handle_read_error(struct nfs_pgio_data *data)
+static void pnfs_ld_handle_read_error(struct nfs_pgio_header *hdr)
{
- struct nfs_pgio_header *hdr = data->header;
-
dprintk("pnfs read error = %d\n", hdr->pnfs_error);
if (NFS_SERVER(hdr->inode)->pnfs_curr_ld->flags &
PNFS_LAYOUTRET_ON_ERROR) {
pnfs_return_layout(hdr->inode);
}
if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags))
- data->task.tk_status = pnfs_read_done_resend_to_mds(hdr->inode,
- &hdr->pages,
- hdr->completion_ops,
- hdr->dreq);
+ hdr->task.tk_status = pnfs_read_done_resend_to_mds(hdr);
}
/*
* Called by non rpc-based layout drivers
*/
-void pnfs_ld_read_done(struct nfs_pgio_data *data)
+void pnfs_ld_read_done(struct nfs_pgio_header *hdr)
{
- struct nfs_pgio_header *hdr = data->header;
-
- trace_nfs4_pnfs_read(data, hdr->pnfs_error);
+ trace_nfs4_pnfs_read(hdr, hdr->pnfs_error);
if (likely(!hdr->pnfs_error)) {
- __nfs4_read_done_cb(data);
- hdr->mds_ops->rpc_call_done(&data->task, data);
+ __nfs4_read_done_cb(hdr);
+ hdr->mds_ops->rpc_call_done(&hdr->task, hdr);
} else
- pnfs_ld_handle_read_error(data);
- hdr->mds_ops->rpc_release(data);
+ pnfs_ld_handle_read_error(hdr);
+ hdr->mds_ops->rpc_release(hdr);
}
EXPORT_SYMBOL_GPL(pnfs_ld_read_done);
static void
pnfs_read_through_mds(struct nfs_pageio_descriptor *desc,
- struct nfs_pgio_data *data)
+ struct nfs_pgio_header *hdr)
{
- struct nfs_pgio_header *hdr = data->header;
-
if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
list_splice_tail_init(&hdr->pages, &desc->pg_list);
nfs_pageio_reset_read_mds(desc);
desc->pg_recoalesce = 1;
}
- nfs_pgio_data_release(data);
+ nfs_pgio_data_destroy(hdr);
}
/*
* Call the appropriate parallel I/O subsystem read function.
*/
static enum pnfs_try_status
-pnfs_try_to_read_data(struct nfs_pgio_data *rdata,
+pnfs_try_to_read_data(struct nfs_pgio_header *hdr,
const struct rpc_call_ops *call_ops,
struct pnfs_layout_segment *lseg)
{
- struct nfs_pgio_header *hdr = rdata->header;
struct inode *inode = hdr->inode;
struct nfs_server *nfss = NFS_SERVER(inode);
enum pnfs_try_status trypnfs;
hdr->mds_ops = call_ops;
dprintk("%s: Reading ino:%lu %u@%llu\n",
- __func__, inode->i_ino, rdata->args.count, rdata->args.offset);
+ __func__, inode->i_ino, hdr->args.count, hdr->args.offset);
- trypnfs = nfss->pnfs_curr_ld->read_pagelist(rdata);
+ trypnfs = nfss->pnfs_curr_ld->read_pagelist(hdr);
if (trypnfs != PNFS_NOT_ATTEMPTED)
nfs_inc_stats(inode, NFSIOS_PNFS_READ);
dprintk("%s End (trypnfs:%d)\n", __func__, trypnfs);
static void
pnfs_do_read(struct nfs_pageio_descriptor *desc, struct nfs_pgio_header *hdr)
{
- struct nfs_pgio_data *data = hdr->data;
const struct rpc_call_ops *call_ops = desc->pg_rpc_callops;
struct pnfs_layout_segment *lseg = desc->pg_lseg;
enum pnfs_try_status trypnfs;
desc->pg_lseg = NULL;
- trypnfs = pnfs_try_to_read_data(data, call_ops, lseg);
+ trypnfs = pnfs_try_to_read_data(hdr, call_ops, lseg);
if (trypnfs == PNFS_NOT_ATTEMPTED)
- pnfs_read_through_mds(desc, data);
+ pnfs_read_through_mds(desc, hdr);
pnfs_put_lseg(lseg);
}
static void pnfs_readhdr_free(struct nfs_pgio_header *hdr)
{
pnfs_put_lseg(hdr->lseg);
- nfs_rw_header_free(hdr);
+ nfs_pgio_header_free(hdr);
}
EXPORT_SYMBOL_GPL(pnfs_readhdr_free);
int
pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc)
{
- struct nfs_rw_header *rhdr;
struct nfs_pgio_header *hdr;
int ret;
- rhdr = nfs_rw_header_alloc(desc->pg_rw_ops);
- if (!rhdr) {
+ hdr = nfs_pgio_header_alloc(desc->pg_rw_ops);
+ if (!hdr) {
desc->pg_completion_ops->error_cleanup(&desc->pg_list);
ret = -ENOMEM;
pnfs_put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
return ret;
}
- hdr = &rhdr->header;
nfs_pgheader_init(desc, hdr, pnfs_readhdr_free);
hdr->lseg = pnfs_get_lseg(desc->pg_lseg);
- atomic_inc(&hdr->refcnt);
ret = nfs_generic_pgio(desc, hdr);
if (ret != 0) {
pnfs_put_lseg(desc->pg_lseg);
desc->pg_lseg = NULL;
} else
pnfs_do_read(desc, hdr);
- if (atomic_dec_and_test(&hdr->refcnt))
- hdr->completion_ops->completion(hdr);
return ret;
}
EXPORT_SYMBOL_GPL(pnfs_generic_pg_readpages);
EXPORT_SYMBOL_GPL(pnfs_set_lo_fail);
void
-pnfs_set_layoutcommit(struct nfs_pgio_data *wdata)
+pnfs_set_layoutcommit(struct nfs_pgio_header *hdr)
{
- struct nfs_pgio_header *hdr = wdata->header;
struct inode *inode = hdr->inode;
struct nfs_inode *nfsi = NFS_I(inode);
- loff_t end_pos = wdata->mds_offset + wdata->res.count;
+ loff_t end_pos = hdr->mds_offset + hdr->res.count;
bool mark_as_dirty = false;
spin_lock(&inode->i_lock);
projects / firefly-linux-kernel-4.4.55.git / blobdiff