diff options
Diffstat (limited to 'fs/nfs/filelayout/filelayoutdev.c')
-rw-r--r-- | fs/nfs/filelayout/filelayoutdev.c | 108 |
1 files changed, 5 insertions, 103 deletions
diff --git a/fs/nfs/filelayout/filelayoutdev.c b/fs/nfs/filelayout/filelayoutdev.c index 8540516f4d71..9bb806a76d99 100644 --- a/fs/nfs/filelayout/filelayoutdev.c +++ b/fs/nfs/filelayout/filelayoutdev.c @@ -484,8 +484,9 @@ out_err: } /* Decode opaque device data and return the result */ -static struct nfs4_file_layout_dsaddr* -decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags) +struct nfs4_file_layout_dsaddr * +nfs4_fl_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev, + gfp_t gfp_flags) { int i; u32 cnt, num; @@ -570,10 +571,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags) dsaddr->stripe_indices = stripe_indices; stripe_indices = NULL; dsaddr->ds_num = num; - nfs4_init_deviceid_node(&dsaddr->id_node, - NFS_SERVER(ino)->pnfs_curr_ld, - NFS_SERVER(ino)->nfs_client, - &pdev->dev_id); + nfs4_init_deviceid_node(&dsaddr->id_node, server, &pdev->dev_id); INIT_LIST_HEAD(&dsaddrs); @@ -587,7 +585,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags) mp_count = be32_to_cpup(p); /* multipath count */ for (j = 0; j < mp_count; j++) { - da = decode_ds_addr(NFS_SERVER(ino)->nfs_client->cl_net, + da = decode_ds_addr(server->nfs_client->cl_net, &stream, gfp_flags); if (da) list_add_tail(&da->da_node, &dsaddrs); @@ -637,102 +635,6 @@ out_err: return NULL; } -/* - * Decode the opaque device specified in 'dev' and add it to the cache of - * available devices. - */ -static struct nfs4_file_layout_dsaddr * -decode_and_add_device(struct inode *inode, struct pnfs_device *dev, gfp_t gfp_flags) -{ - struct nfs4_deviceid_node *d; - struct nfs4_file_layout_dsaddr *n, *new; - - new = decode_device(inode, dev, gfp_flags); - if (!new) { - printk(KERN_WARNING "NFS: %s: Could not decode or add device\n", - __func__); - return NULL; - } - - d = nfs4_insert_deviceid_node(&new->id_node); - n = container_of(d, struct nfs4_file_layout_dsaddr, id_node); - if (n != new) { - nfs4_fl_free_deviceid(new); - return n; - } - - return new; -} - -/* - * Retrieve the information for dev_id, add it to the list - * of available devices, and return it. - */ -struct nfs4_file_layout_dsaddr * -filelayout_get_device_info(struct inode *inode, - struct nfs4_deviceid *dev_id, - struct rpc_cred *cred, - gfp_t gfp_flags) -{ - struct pnfs_device *pdev = NULL; - u32 max_resp_sz; - int max_pages; - struct page **pages = NULL; - struct nfs4_file_layout_dsaddr *dsaddr = NULL; - int rc, i; - struct nfs_server *server = NFS_SERVER(inode); - - /* - * Use the session max response size as the basis for setting - * GETDEVICEINFO's maxcount - */ - max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz; - max_pages = nfs_page_array_len(0, max_resp_sz); - dprintk("%s inode %p max_resp_sz %u max_pages %d\n", - __func__, inode, max_resp_sz, max_pages); - - pdev = kzalloc(sizeof(struct pnfs_device), gfp_flags); - if (pdev == NULL) - return NULL; - - pages = kcalloc(max_pages, sizeof(struct page *), gfp_flags); - if (pages == NULL) { - kfree(pdev); - return NULL; - } - for (i = 0; i < max_pages; i++) { - pages[i] = alloc_page(gfp_flags); - if (!pages[i]) - goto out_free; - } - - memcpy(&pdev->dev_id, dev_id, sizeof(*dev_id)); - pdev->layout_type = LAYOUT_NFSV4_1_FILES; - pdev->pages = pages; - pdev->pgbase = 0; - pdev->pglen = max_resp_sz; - pdev->mincount = 0; - pdev->maxcount = max_resp_sz - nfs41_maxgetdevinfo_overhead; - - rc = nfs4_proc_getdeviceinfo(server, pdev, cred); - dprintk("%s getdevice info returns %d\n", __func__, rc); - if (rc) - goto out_free; - - /* - * Found new device, need to decode it and then add it to the - * list of known devices for this mountpoint. - */ - dsaddr = decode_and_add_device(inode, pdev, gfp_flags); -out_free: - for (i = 0; i < max_pages; i++) - __free_page(pages[i]); - kfree(pages); - kfree(pdev); - dprintk("<-- %s dsaddr %p\n", __func__, dsaddr); - return dsaddr; -} - void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr) { |