diff options
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/filelayout/filelayout.c | 10 | ||||
| -rw-r--r-- | fs/nfs/pagelist.c | 32 | ||||
| -rw-r--r-- | fs/nfs/pnfs.c | 63 | ||||
| -rw-r--r-- | fs/nfs/pnfs.h | 8 |
4 files changed, 45 insertions, 68 deletions
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c index 537e7f7a0b48..504d58a51d35 100644 --- a/fs/nfs/filelayout/filelayout.c +++ b/fs/nfs/filelayout/filelayout.c @@ -97,10 +97,7 @@ static void filelayout_reset_write(struct nfs_pgio_header *hdr) hdr->args.count, (unsigned long long)hdr->args.offset); - task->tk_status = pnfs_write_done_resend_to_mds(hdr->inode, - &hdr->pages, - hdr->completion_ops, - hdr->dreq); + task->tk_status = pnfs_write_done_resend_to_mds(hdr); } } @@ -117,10 +114,7 @@ static void filelayout_reset_read(struct nfs_pgio_header *hdr) hdr->args.count, (unsigned long long)hdr->args.offset); - task->tk_status = pnfs_read_done_resend_to_mds(hdr->inode, - &hdr->pages, - hdr->completion_ops, - hdr->dreq); + task->tk_status = pnfs_read_done_resend_to_mds(hdr); } } diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 580fc0c982e6..9c6c55359394 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -949,6 +949,38 @@ int nfs_pageio_add_request(struct nfs_pageio_descriptor *desc, } EXPORT_SYMBOL_GPL(nfs_pageio_add_request); +/* + * nfs_pageio_resend - Transfer requests to new descriptor and resend + * @hdr - the pgio header to move request from + * @desc - the pageio descriptor to add requests to + * + * Try to move each request (nfs_page) from @hdr to @desc then attempt + * to send them. + * + * Returns 0 on success and < 0 on error. + */ +int nfs_pageio_resend(struct nfs_pageio_descriptor *desc, + struct nfs_pgio_header *hdr) +{ + LIST_HEAD(failed); + + desc->pg_dreq = hdr->dreq; + while (!list_empty(&hdr->pages)) { + struct nfs_page *req = nfs_list_entry(hdr->pages.next); + + nfs_list_remove_request(req); + if (!nfs_pageio_add_request(desc, req)) + nfs_list_add_request(req, &failed); + } + nfs_pageio_complete(desc); + if (!list_empty(&failed)) { + list_move(&failed, &hdr->pages); + return -EIO; + } + return 0; +} +EXPORT_SYMBOL_GPL(nfs_pageio_resend); + /** * nfs_pageio_complete - Complete I/O on an nfs_pageio_descriptor * @desc: pointer to io descriptor diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index ecbed4632d11..83ff8a05485a 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1470,35 +1470,14 @@ pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, } 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); @@ -1511,10 +1490,7 @@ static void pnfs_ld_handle_write_error(struct nfs_pgio_header *hdr) pnfs_return_layout(hdr->inode); } if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) - hdr->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); } /* @@ -1612,31 +1588,13 @@ pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc) } 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); @@ -1648,10 +1606,7 @@ static void pnfs_ld_handle_read_error(struct nfs_pgio_header *hdr) pnfs_return_layout(hdr->inode); } if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) - hdr->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); } /* diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index a4a58be94064..27ddecd3847f 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -228,12 +228,8 @@ struct pnfs_layout_segment *pnfs_update_layout(struct inode *ino, gfp_t gfp_flags); void nfs4_deviceid_mark_client_invalid(struct nfs_client *clp); -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_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_read_done_resend_to_mds(struct nfs_pgio_header *); +int pnfs_write_done_resend_to_mds(struct nfs_pgio_header *); struct nfs4_threshold *pnfs_mdsthreshold_alloc(void); /* nfs4_deviceid_flags */ |