kfree(de);
}
-static struct objio_dev_ent *_dev_list_find(const struct nfs_server *nfss,
- const struct nfs4_deviceid *d_id)
-{
- struct nfs4_deviceid_node *d;
- struct objio_dev_ent *de;
-
- d = nfs4_find_get_deviceid(nfss->pnfs_curr_ld, nfss->nfs_client, d_id);
- if (!d)
- return NULL;
-
- de = container_of(d, struct objio_dev_ent, id_node);
- return de;
-}
-
-static struct objio_dev_ent *
-_dev_list_add(const struct nfs_server *nfss,
- const struct nfs4_deviceid *d_id, struct osd_dev *od,
- gfp_t gfp_flags)
-{
- struct nfs4_deviceid_node *d;
- struct objio_dev_ent *de = kzalloc(sizeof(*de), gfp_flags);
- struct objio_dev_ent *n;
-
- if (!de) {
- dprintk("%s: -ENOMEM od=%p\n", __func__, od);
- return NULL;
- }
-
- dprintk("%s: Adding od=%p\n", __func__, od);
- nfs4_init_deviceid_node(&de->id_node,
- nfss->pnfs_curr_ld,
- nfss->nfs_client,
- d_id);
- de->od.od = od;
-
- d = nfs4_insert_deviceid_node(&de->id_node);
- n = container_of(d, struct objio_dev_ent, id_node);
- if (n != de) {
- dprintk("%s: Race with other n->od=%p\n", __func__, n->od.od);
- objio_free_deviceid_node(&de->id_node);
- de = n;
- }
-
- return de;
-}
-
struct objio_segment {
struct pnfs_layout_segment lseg;
/* Send and wait for a get_device_info of devices in the layout,
then look them up with the osd_initiator library */
-static int objio_devices_lookup(struct pnfs_layout_hdr *pnfslay,
- struct objio_segment *objio_seg, unsigned c, struct nfs4_deviceid *d_id,
- gfp_t gfp_flags)
+struct nfs4_deviceid_node *
+objio_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
+ gfp_t gfp_flags)
{
struct pnfs_osd_deviceaddr *deviceaddr;
- struct objio_dev_ent *ode;
+ struct objio_dev_ent *ode = NULL;
struct osd_dev *od;
struct osd_dev_info odi;
bool retry_flag = true;
+ u32 *p;
int err;
- ode = _dev_list_find(NFS_SERVER(pnfslay->plh_inode), d_id);
- if (ode) {
- objio_seg->oc.ods[c] = &ode->od; /* must use container_of */
- return 0;
- }
+ deviceaddr = kzalloc(sizeof(*deviceaddr), gfp_flags);
+ if (!deviceaddr)
+ return NULL;
- err = objlayout_get_deviceinfo(pnfslay, d_id, &deviceaddr, gfp_flags);
- if (unlikely(err)) {
- dprintk("%s: objlayout_get_deviceinfo dev(%llx:%llx) =>%d\n",
- __func__, _DEVID_LO(d_id), _DEVID_HI(d_id), err);
- return err;
- }
+ p = page_address(pdev->pages[0]);
+ pnfs_osd_xdr_decode_deviceaddr(deviceaddr, p);
odi.systemid_len = deviceaddr->oda_systemid.len;
if (odi.systemid_len > sizeof(odi.systemid)) {
goto out;
}
- ode = _dev_list_add(NFS_SERVER(pnfslay->plh_inode), d_id, od,
- gfp_flags);
- objio_seg->oc.ods[c] = &ode->od; /* must use container_of */
dprintk("Adding new dev_id(%llx:%llx)\n",
- _DEVID_LO(d_id), _DEVID_HI(d_id));
+ _DEVID_LO(&pdev->dev_id), _DEVID_HI(&pdev->dev_id));
+
+ ode = kzalloc(sizeof(*ode), gfp_flags);
+ if (!ode) {
+ dprintk("%s: -ENOMEM od=%p\n", __func__, od);
+ goto out;
+ }
+
+ nfs4_init_deviceid_node(&ode->id_node, server, &pdev->dev_id);
+ kfree(deviceaddr);
+
+ ode->od.od = od;
+ return &ode->id_node;
+
out:
- objlayout_put_deviceinfo(deviceaddr);
- return err;
+ kfree(deviceaddr);
+ return NULL;
}
static void copy_single_comp(struct ore_components *oc, unsigned c,
struct xdr_stream *xdr,
gfp_t gfp_flags)
{
+ struct nfs_server *server = NFS_SERVER(pnfslay->plh_inode);
struct objio_segment *objio_seg;
struct pnfs_osd_xdr_decode_layout_iter iter;
struct pnfs_osd_layout layout;
objio_seg->oc.first_dev = layout.olo_comps_index;
cur_comp = 0;
while (pnfs_osd_xdr_decode_layout_comp(&src_comp, &iter, xdr, &err)) {
+ struct nfs4_deviceid_node *d;
+ struct objio_dev_ent *ode;
+
copy_single_comp(&objio_seg->oc, cur_comp, &src_comp);
- err = objio_devices_lookup(pnfslay, objio_seg, cur_comp,
- &src_comp.oc_object_id.oid_device_id,
- gfp_flags);
- if (err)
+
+ d = nfs4_find_get_deviceid(server,
+ &src_comp.oc_object_id.oid_device_id,
+ pnfslay->plh_lc_cred, gfp_flags);
+ if (!d) {
+ err = -ENXIO;
goto err;
- ++cur_comp;
+ }
+
+ ode = container_of(d, struct objio_dev_ent, id_node);
+ objio_seg->oc.ods[cur_comp++] = &ode->od;
}
/* pnfs_osd_xdr_decode_layout_comp returns false on error */
if (unlikely(err))
objlayout_read_done(&objios->oir, status, objios->sync);
}
-int objio_read_pagelist(struct nfs_pgio_data *rdata)
+int objio_read_pagelist(struct nfs_pgio_header *hdr)
{
- struct nfs_pgio_header *hdr = rdata->header;
struct objio_state *objios;
int ret;
ret = objio_alloc_io_state(NFS_I(hdr->inode)->layout, true,
- hdr->lseg, rdata->args.pages, rdata->args.pgbase,
- rdata->args.offset, rdata->args.count, rdata,
+ hdr->lseg, hdr->args.pages, hdr->args.pgbase,
+ hdr->args.offset, hdr->args.count, hdr,
GFP_KERNEL, &objios);
if (unlikely(ret))
return ret;
objios->ios->done = _read_done;
dprintk("%s: offset=0x%llx length=0x%x\n", __func__,
- rdata->args.offset, rdata->args.count);
+ hdr->args.offset, hdr->args.count);
ret = ore_read(objios->ios);
if (unlikely(ret))
objio_free_result(&objios->oir);
static struct page *__r4w_get_page(void *priv, u64 offset, bool *uptodate)
{
struct objio_state *objios = priv;
- struct nfs_pgio_data *wdata = objios->oir.rpcdata;
- struct address_space *mapping = wdata->header->inode->i_mapping;
+ struct nfs_pgio_header *hdr = objios->oir.rpcdata;
+ struct address_space *mapping = hdr->inode->i_mapping;
pgoff_t index = offset / PAGE_SIZE;
struct page *page;
- loff_t i_size = i_size_read(wdata->header->inode);
+ loff_t i_size = i_size_read(hdr->inode);
if (offset >= i_size) {
*uptodate = true;
.put_page = &__r4w_put_page,
};
-int objio_write_pagelist(struct nfs_pgio_data *wdata, int how)
+int objio_write_pagelist(struct nfs_pgio_header *hdr, int how)
{
- struct nfs_pgio_header *hdr = wdata->header;
struct objio_state *objios;
int ret;
ret = objio_alloc_io_state(NFS_I(hdr->inode)->layout, false,
- hdr->lseg, wdata->args.pages, wdata->args.pgbase,
- wdata->args.offset, wdata->args.count, wdata, GFP_NOFS,
+ hdr->lseg, hdr->args.pages, hdr->args.pgbase,
+ hdr->args.offset, hdr->args.count, hdr, GFP_NOFS,
&objios);
if (unlikely(ret))
return ret;
objios->ios->done = _write_done;
dprintk("%s: offset=0x%llx length=0x%x\n", __func__,
- wdata->args.offset, wdata->args.count);
+ hdr->args.offset, hdr->args.count);
ret = ore_write(objios->ios);
if (unlikely(ret)) {
objio_free_result(&objios->oir);
.flags = PNFS_LAYOUTRET_ON_SETATTR |
PNFS_LAYOUTRET_ON_ERROR,
+ .max_deviceinfo_size = PAGE_SIZE,
.owner = THIS_MODULE,
.alloc_layout_hdr = objlayout_alloc_layout_hdr,
.free_layout_hdr = objlayout_free_layout_hdr,
git.samba.org / sfrench / cifs-2.6.git / blobdiff