Lines Matching +full:eye +full:- +full:src
1 // SPDX-License-Identifier: GPL-2.0-only
23 #include <linux/backing-dev.h>
83 INIT_LIST_HEAD(&p->pages); in nfs_commitdata_alloc()
105 p->rw_mode = FMODE_WRITE; in nfs_writehdr_alloc()
122 ioc->complete = complete; in nfs_io_completion_init()
123 ioc->data = data; in nfs_io_completion_init()
124 kref_init(&ioc->refcount); in nfs_io_completion_init()
131 ioc->complete(ioc->data); in nfs_io_completion_release()
138 kref_get(&ioc->refcount); in nfs_io_completion_get()
144 kref_put(&ioc->refcount, nfs_io_completion_release); in nfs_io_completion_put()
150 if (!test_and_set_bit(PG_INODE_REF, &req->wb_flags)) { in nfs_page_set_inode_ref()
151 kref_get(&req->wb_kref); in nfs_page_set_inode_ref()
152 atomic_long_inc(&NFS_I(inode)->nrequests); in nfs_page_set_inode_ref()
161 if (!test_bit(PG_REMOVE, &req->wb_flags)) in nfs_cancel_remove_inode()
166 if (test_and_clear_bit(PG_REMOVE, &req->wb_flags)) in nfs_cancel_remove_inode()
173 * nfs_folio_find_head_request - find head request associated with a folio
182 struct address_space *mapping = folio->mapping; in nfs_folio_find_head_request()
187 spin_lock(&mapping->i_private_lock); in nfs_folio_find_head_request()
188 req = folio->private; in nfs_folio_find_head_request()
190 WARN_ON_ONCE(req->wb_head != req); in nfs_folio_find_head_request()
191 kref_get(&req->wb_kref); in nfs_folio_find_head_request()
193 spin_unlock(&mapping->i_private_lock); in nfs_folio_find_head_request()
201 struct inode *inode = folio->mapping->host; in nfs_grow_file()
205 spin_lock(&inode->i_lock); in nfs_grow_file()
207 end_index = ((i_size - 1) >> folio_shift(folio)) << folio_order(folio); in nfs_grow_file()
208 if (i_size > 0 && folio->index < end_index) in nfs_grow_file()
215 NFS_I(inode)->cache_validity &= ~NFS_INO_INVALID_SIZE; in nfs_grow_file()
220 spin_unlock(&inode->i_lock); in nfs_grow_file()
227 struct inode *inode = mapping->host; in nfs_set_pageerror()
229 nfs_zap_mapping(mapping->host, mapping); in nfs_set_pageerror()
231 spin_lock(&inode->i_lock); in nfs_set_pageerror()
235 spin_unlock(&inode->i_lock); in nfs_set_pageerror()
240 struct address_space *mapping = folio->mapping; in nfs_mapping_set_error()
243 if (mapping->host) in nfs_mapping_set_error()
244 errseq_set(&mapping->host->i_sb->s_wb_err, in nfs_mapping_set_error()
245 error == -ENOSPC ? -ENOSPC : -EIO); in nfs_mapping_set_error()
251 * @head - head request of page group
252 * @page_offset - offset into page
269 if (page_offset >= req->wb_pgbase && in nfs_page_group_search_locked()
270 page_offset < (req->wb_pgbase + req->wb_bytes)) in nfs_page_group_search_locked()
273 req = req->wb_this_page; in nfs_page_group_search_locked()
281 * @head - head request of page group
295 tmp = nfs_page_group_search_locked(req->wb_head, pos); in nfs_page_group_covers_page()
298 pos = tmp->wb_pgbase + tmp->wb_bytes; in nfs_page_group_covers_page()
323 if (wbc->sync_mode == WB_SYNC_ALL) in wb_priority()
334 #define NFS_CONGESTION_ON_THRESH (nfs_congestion_kb >> (PAGE_SHIFT-10))
336 (NFS_CONGESTION_ON_THRESH - (NFS_CONGESTION_ON_THRESH >> 2))
340 struct nfs_server *nfss = NFS_SERVER(folio->mapping->host); in nfs_folio_set_writeback()
343 if (atomic_long_inc_return(&nfss->writeback) > NFS_CONGESTION_ON_THRESH) in nfs_folio_set_writeback()
344 nfss->write_congested = 1; in nfs_folio_set_writeback()
349 struct nfs_server *nfss = NFS_SERVER(folio->mapping->host); in nfs_folio_end_writeback()
352 if (atomic_long_dec_return(&nfss->writeback) < in nfs_folio_end_writeback()
354 nfss->write_congested = 0; in nfs_folio_end_writeback()
355 wake_up_all(&nfss->write_congestion_wait); in nfs_folio_end_writeback()
369 * nfs_destroy_unlinked_subrequests - destroy recently unlinked subrequests
371 * @destroy_list - request list (using wb_this_page) terminated by @old_head
372 * @old_head - the old head of the list
386 destroy_list = (subreq->wb_this_page == old_head) ? in nfs_destroy_unlinked_subrequests()
387 NULL : subreq->wb_this_page; in nfs_destroy_unlinked_subrequests()
389 /* Note: lock subreq in order to change subreq->wb_head */ in nfs_destroy_unlinked_subrequests()
391 WARN_ON_ONCE(old_head != subreq->wb_head); in nfs_destroy_unlinked_subrequests()
394 subreq->wb_this_page = subreq; in nfs_destroy_unlinked_subrequests()
395 subreq->wb_head = subreq; in nfs_destroy_unlinked_subrequests()
397 clear_bit(PG_REMOVE, &subreq->wb_flags); in nfs_destroy_unlinked_subrequests()
400 if (!kref_read(&subreq->wb_kref)) { in nfs_destroy_unlinked_subrequests()
402 if (test_and_clear_bit(PG_TEARDOWN, &subreq->wb_flags)) { in nfs_destroy_unlinked_subrequests()
413 if (test_and_clear_bit(PG_INODE_REF, &subreq->wb_flags)) { in nfs_destroy_unlinked_subrequests()
415 atomic_long_dec(&NFS_I(inode)->nrequests); in nfs_destroy_unlinked_subrequests()
425 * nfs_join_page_group - destroy subrequests of the head req
442 pgbase = head->wb_pgbase; in nfs_join_page_group()
443 bytes = head->wb_bytes; in nfs_join_page_group()
444 off = head->wb_offset; in nfs_join_page_group()
445 for (subreq = head->wb_this_page; subreq != head; in nfs_join_page_group()
446 subreq = subreq->wb_this_page) { in nfs_join_page_group()
448 if (pgbase > subreq->wb_pgbase) { in nfs_join_page_group()
449 off -= pgbase - subreq->wb_pgbase; in nfs_join_page_group()
450 bytes += pgbase - subreq->wb_pgbase; in nfs_join_page_group()
451 pgbase = subreq->wb_pgbase; in nfs_join_page_group()
453 bytes = max(subreq->wb_pgbase + subreq->wb_bytes in nfs_join_page_group()
454 - pgbase, bytes); in nfs_join_page_group()
458 head->wb_pgbase = pgbase; in nfs_join_page_group()
459 head->wb_bytes = bytes; in nfs_join_page_group()
460 head->wb_offset = off; in nfs_join_page_group()
467 subreq = subreq->wb_this_page; in nfs_join_page_group()
471 if (head->wb_this_page != head) { in nfs_join_page_group()
473 destroy_list = head->wb_this_page; in nfs_join_page_group()
474 head->wb_this_page = head; in nfs_join_page_group()
481 * nfs_wait_on_request - Wait for a request to complete.
489 if (!test_bit(PG_BUSY, &req->wb_flags)) in nfs_wait_on_request()
491 set_bit(PG_CONTENDED2, &req->wb_flags); in nfs_wait_on_request()
493 return wait_on_bit_io(&req->wb_flags, PG_BUSY, in nfs_wait_on_request()
498 * nfs_unroll_locks - unlock all newly locked reqs and wait on @req
511 for (tmp = head->wb_this_page ; tmp != req; tmp = tmp->wb_this_page) { in nfs_unroll_locks()
512 if (!kref_read(&tmp->wb_kref)) in nfs_unroll_locks()
519 * nfs_page_group_lock_subreq - try to lock a subrequest
532 if (!kref_get_unless_zero(&subreq->wb_kref)) in nfs_page_group_lock_subreq()
549 * nfs_lock_and_join_requests - join all subreqs to the head req
558 * Returns a locked, referenced pointer to the head request - which after
565 struct inode *inode = folio->mapping->host; in nfs_lock_and_join_requests()
572 * reference to the whole page group - the group will not be destroyed in nfs_lock_and_join_requests()
589 if (head != folio->private) { in nfs_lock_and_join_requests()
603 for (subreq = head->wb_this_page; in nfs_lock_and_join_requests()
605 subreq = subreq->wb_this_page) { in nfs_lock_and_join_requests()
650 WARN_ON_ONCE(test_bit(PG_CLEAN, &req->wb_flags)); in nfs_page_async_flush()
653 ret = pgio->pg_error; in nfs_page_async_flush()
659 ret = pgio->pg_error; in nfs_page_async_flush()
665 if (wbc->sync_mode == WB_SYNC_NONE) in nfs_page_async_flush()
669 pgio->pg_error = 0; in nfs_page_async_flush()
671 nfs_add_stats(folio->mapping->host, in nfs_page_async_flush()
683 nfs_pageio_cond_complete(pgio, folio->index); in nfs_do_writepage()
694 struct inode *inode = folio->mapping->host; in nfs_writepage_locked()
724 struct inode *inode = mapping->host; in nfs_writepages()
727 unsigned int mntflags = NFS_SERVER(inode)->flags; in nfs_writepages()
733 if (wbc->sync_mode == WB_SYNC_NONE && nfss->write_congested) { in nfs_writepages()
734 err = wait_event_killable(nfss->write_congestion_wait, in nfs_writepages()
735 nfss->write_congested == 0); in nfs_writepages()
742 if (!(mntflags & NFS_MOUNT_WRITE_EAGER) || wbc->for_kupdate || in nfs_writepages()
743 wbc->for_background || wbc->for_sync || wbc->for_reclaim) { in nfs_writepages()
759 if (err == -EAGAIN && mntflags & NFS_MOUNT_SOFTERR) in nfs_writepages()
777 struct address_space *mapping = folio->mapping; in nfs_inode_add_request()
778 struct nfs_inode *nfsi = NFS_I(mapping->host); in nfs_inode_add_request()
780 WARN_ON_ONCE(req->wb_this_page != req); in nfs_inode_add_request()
784 spin_lock(&mapping->i_private_lock); in nfs_inode_add_request()
785 set_bit(PG_MAPPED, &req->wb_flags); in nfs_inode_add_request()
787 folio->private = req; in nfs_inode_add_request()
788 spin_unlock(&mapping->i_private_lock); in nfs_inode_add_request()
789 atomic_long_inc(&nfsi->nrequests); in nfs_inode_add_request()
790 /* this a head request for a page group - mark it as having an in nfs_inode_add_request()
794 WARN_ON(test_and_set_bit(PG_INODE_REF, &req->wb_flags)); in nfs_inode_add_request()
795 kref_get(&req->wb_kref); in nfs_inode_add_request()
806 struct folio *folio = nfs_page_to_folio(req->wb_head); in nfs_inode_remove_request()
807 struct address_space *mapping = folio->mapping; in nfs_inode_remove_request()
809 spin_lock(&mapping->i_private_lock); in nfs_inode_remove_request()
811 folio->private = NULL; in nfs_inode_remove_request()
813 clear_bit(PG_MAPPED, &req->wb_head->wb_flags); in nfs_inode_remove_request()
815 spin_unlock(&mapping->i_private_lock); in nfs_inode_remove_request()
818 if (test_and_clear_bit(PG_INODE_REF, &req->wb_flags)) { in nfs_inode_remove_request()
819 atomic_long_dec(&nfsi->nrequests); in nfs_inode_remove_request()
832 * nfs_request_add_commit_list_locked - add request to a commit list
841 * The caller must hold NFS_I(cinfo->inode)->commit_mutex, and the
848 set_bit(PG_CLEAN, &req->wb_flags); in nfs_request_add_commit_list_locked()
850 atomic_long_inc(&cinfo->mds->ncommit); in nfs_request_add_commit_list_locked()
855 * nfs_request_add_commit_list - add request to a commit list
863 * The caller must _not_ hold the cinfo->lock, but must be
869 mutex_lock(&NFS_I(cinfo->inode)->commit_mutex); in nfs_request_add_commit_list()
870 nfs_request_add_commit_list_locked(req, &cinfo->mds->list, cinfo); in nfs_request_add_commit_list()
871 mutex_unlock(&NFS_I(cinfo->inode)->commit_mutex); in nfs_request_add_commit_list()
877 * nfs_request_remove_commit_list - Remove request from a commit list
885 * The caller _must_ hold the cinfo->lock and the nfs_page lock.
891 if (!test_and_clear_bit(PG_CLEAN, &(req)->wb_flags)) in nfs_request_remove_commit_list()
894 atomic_long_dec(&cinfo->mds->ncommit); in nfs_request_remove_commit_list()
901 cinfo->inode = inode; in nfs_init_cinfo_from_inode()
902 cinfo->mds = &NFS_I(inode)->commit_info; in nfs_init_cinfo_from_inode()
903 cinfo->ds = pnfs_get_ds_info(inode); in nfs_init_cinfo_from_inode()
904 cinfo->dreq = NULL; in nfs_init_cinfo_from_inode()
905 cinfo->completion_ops = &nfs_commit_completion_ops; in nfs_init_cinfo_from_inode()
936 node_stat_mod_folio(folio, NR_WRITEBACK, -nr); in nfs_folio_clear_commit()
937 wb_stat_mod(&inode_to_bdi(folio->mapping->host)->wb, in nfs_folio_clear_commit()
938 WB_WRITEBACK, -nr); in nfs_folio_clear_commit()
946 if (test_bit(PG_CLEAN, &req->wb_flags)) { in nfs_clear_request_commit()
948 struct inode *inode = d_inode(ctx->dentry); in nfs_clear_request_commit()
950 mutex_lock(&NFS_I(inode)->commit_mutex); in nfs_clear_request_commit()
954 mutex_unlock(&NFS_I(inode)->commit_mutex); in nfs_clear_request_commit()
961 if (hdr->verf.committed == NFS_DATA_SYNC) in nfs_write_need_commit()
962 return hdr->lseg == NULL; in nfs_write_need_commit()
963 return hdr->verf.committed != NFS_FILE_SYNC; in nfs_write_need_commit()
968 nfs_io_completion_get(hdr->io_completion); in nfs_async_write_init()
976 if (test_bit(NFS_IOHDR_REDO, &hdr->flags)) in nfs_write_completion()
978 nfs_init_cinfo_from_inode(&cinfo, hdr->inode); in nfs_write_completion()
979 while (!list_empty(&hdr->pages)) { in nfs_write_completion()
980 struct nfs_page *req = nfs_list_entry(hdr->pages.next); in nfs_write_completion()
982 bytes += req->wb_bytes; in nfs_write_completion()
984 if (test_bit(NFS_IOHDR_ERROR, &hdr->flags) && in nfs_write_completion()
985 (hdr->good_bytes < bytes)) { in nfs_write_completion()
986 trace_nfs_comp_error(hdr->inode, req, hdr->error); in nfs_write_completion()
988 hdr->error); in nfs_write_completion()
993 req->wb_nio = 0; in nfs_write_completion()
994 memcpy(&req->wb_verf, &hdr->verf.verifier, sizeof(req->wb_verf)); in nfs_write_completion()
995 nfs_mark_request_commit(req, hdr->lseg, &cinfo, in nfs_write_completion()
996 hdr->pgio_mirror_idx); in nfs_write_completion()
1006 nfs_io_completion_put(hdr->io_completion); in nfs_write_completion()
1007 hdr->release(hdr); in nfs_write_completion()
1013 return atomic_long_read(&cinfo->mds->ncommit); in nfs_reqs_to_commit()
1016 /* NFS_I(cinfo->inode)->commit_mutex held by caller */
1018 nfs_scan_commit_list(struct list_head *src, struct list_head *dst, in nfs_scan_commit_list() argument
1024 list_for_each_entry_safe(req, tmp, src, wb_list) { in nfs_scan_commit_list()
1025 kref_get(&req->wb_kref); in nfs_scan_commit_list()
1031 clear_bit(PG_COMMIT_TO_DS, &req->wb_flags); in nfs_scan_commit_list()
1034 if ((ret == max) && !cinfo->dreq) in nfs_scan_commit_list()
1043 * nfs_scan_commit - Scan an inode for commit requests
1057 if (!atomic_long_read(&cinfo->mds->ncommit)) in nfs_scan_commit()
1059 mutex_lock(&NFS_I(cinfo->inode)->commit_mutex); in nfs_scan_commit()
1060 if (atomic_long_read(&cinfo->mds->ncommit) > 0) { in nfs_scan_commit()
1063 ret = nfs_scan_commit_list(&cinfo->mds->list, dst, in nfs_scan_commit()
1065 ret += pnfs_scan_commit_lists(inode, cinfo, max - ret); in nfs_scan_commit()
1067 mutex_unlock(&NFS_I(cinfo->inode)->commit_mutex); in nfs_scan_commit()
1093 rqend = req->wb_offset + req->wb_bytes; in nfs_try_to_update_request()
1096 * the offsets are non-contiguous. in nfs_try_to_update_request()
1100 if (offset > rqend || end < req->wb_offset) in nfs_try_to_update_request()
1104 if (offset < req->wb_offset) { in nfs_try_to_update_request()
1105 req->wb_offset = offset; in nfs_try_to_update_request()
1106 req->wb_pgbase = offset; in nfs_try_to_update_request()
1109 req->wb_bytes = end - req->wb_offset; in nfs_try_to_update_request()
1111 req->wb_bytes = rqend - req->wb_offset; in nfs_try_to_update_request()
1112 req->wb_nio = 0; in nfs_try_to_update_request()
1122 error = nfs_wb_folio(folio->mapping->host, folio); in nfs_try_to_update_request()
1179 * due to the lack of an ACCESS-type call in NFSv2. in nfs_flush_incompatible()
1187 l_ctx = req->wb_lock_context; in nfs_flush_incompatible()
1191 !(list_empty_careful(&flctx->flc_posix) && in nfs_flush_incompatible()
1192 list_empty_careful(&flctx->flc_flock))) { in nfs_flush_incompatible()
1193 do_flush |= l_ctx->lockowner != current->files; in nfs_flush_incompatible()
1198 status = nfs_wb_folio(folio->mapping->host, folio); in nfs_flush_incompatible()
1207 * Returns -EACCES if the key will expire within RPC_KEY_EXPIRE_FAIL.
1219 !rcu_access_pointer(ctx->ll_cred)) in nfs_key_timeout_notify()
1221 return -EACCES; in nfs_key_timeout_notify()
1230 struct rpc_auth *auth = NFS_SERVER(inode)->client->cl_auth; in nfs_ctx_key_to_expire()
1233 .cred = ctx->cred, in nfs_ctx_key_to_expire()
1238 cred = rcu_dereference(ctx->ll_cred); in nfs_ctx_key_to_expire()
1239 if (cred && !(cred->cr_ops->crkey_timeout && in nfs_ctx_key_to_expire()
1240 cred->cr_ops->crkey_timeout(cred))) in nfs_ctx_key_to_expire()
1244 new = auth->au_ops->lookup_cred(auth, &acred, 0); in nfs_ctx_key_to_expire()
1252 } else if (new->cr_ops->crkey_timeout && in nfs_ctx_key_to_expire()
1253 new->cr_ops->crkey_timeout(new)) in nfs_ctx_key_to_expire()
1257 old = rcu_dereference_protected(xchg(&ctx->ll_cred, in nfs_ctx_key_to_expire()
1272 struct inode *inode = folio->mapping->host; in nfs_folio_write_uptodate()
1277 if (nfsi->cache_validity & in nfs_folio_write_uptodate()
1281 if (test_bit(NFS_INO_INVALIDATING, &nfsi->flags) && pagelen != 0) in nfs_folio_write_uptodate()
1284 if (nfsi->cache_validity & NFS_INO_INVALID_DATA && pagelen != 0) in nfs_folio_write_uptodate()
1292 return fl->fl_start == 0 && fl->fl_end == OFFSET_MAX && in is_whole_file_wrlock()
1311 unsigned int mntflags = NFS_SERVER(inode)->flags; in nfs_can_extend_write()
1315 if (file->f_flags & O_DSYNC) in nfs_can_extend_write()
1321 if (!flctx || (list_empty_careful(&flctx->flc_flock) && in nfs_can_extend_write()
1322 list_empty_careful(&flctx->flc_posix))) in nfs_can_extend_write()
1327 spin_lock(&flctx->flc_lock); in nfs_can_extend_write()
1328 if (!list_empty(&flctx->flc_posix)) { in nfs_can_extend_write()
1329 fl = list_first_entry(&flctx->flc_posix, struct file_lock, in nfs_can_extend_write()
1333 } else if (!list_empty(&flctx->flc_flock)) { in nfs_can_extend_write()
1334 fl = list_first_entry(&flctx->flc_flock, struct file_lock, in nfs_can_extend_write()
1339 spin_unlock(&flctx->flc_lock); in nfs_can_extend_write()
1346 * XXX: Keep an eye on generic_file_read to make sure it doesn't do bad
1353 struct address_space *mapping = folio->mapping; in nfs_update_folio()
1354 struct inode *inode = mapping->host; in nfs_update_folio()
1372 count = end - offset; in nfs_update_folio()
1402 if (IS_SWAPFILE(hdr->inode)) in nfs_initiate_write()
1403 task_setup_data->flags |= RPC_TASK_SWAPPER; in nfs_initiate_write()
1404 task_setup_data->priority = priority; in nfs_initiate_write()
1405 rpc_ops->write_setup(hdr, msg, &task_setup_data->rpc_client); in nfs_initiate_write()
1418 req->wb_nio++; in nfs_redirty_request()
1420 atomic_long_inc(&nfsi->redirtied_pages); in nfs_redirty_request()
1430 req = nfs_list_entry(head->next); in nfs_async_write_error()
1441 nfs_async_write_error(&hdr->pages, 0); in nfs_async_write_reschedule_io()
1459 if (server->pnfs_curr_ld && !force_mds) in nfs_pageio_init_write()
1460 pg_ops = server->pnfs_curr_ld->pg_write_ops; in nfs_pageio_init_write()
1463 server->wsize, ioflags); in nfs_pageio_init_write()
1471 if (pgio->pg_ops && pgio->pg_ops->pg_cleanup) in nfs_pageio_reset_write_mds()
1472 pgio->pg_ops->pg_cleanup(pgio); in nfs_pageio_reset_write_mds()
1474 pgio->pg_ops = &nfs_pgio_rw_ops; in nfs_pageio_reset_write_mds()
1478 mirror = &pgio->pg_mirrors[0]; in nfs_pageio_reset_write_mds()
1479 mirror->pg_bsize = NFS_SERVER(pgio->pg_inode)->wsize; in nfs_pageio_reset_write_mds()
1488 NFS_PROTO(data->inode)->commit_rpc_prepare(task, data); in nfs_commit_prepare()
1494 struct nfs_pgio_args *argp = &hdr->args; in nfs_writeback_check_extend()
1495 struct nfs_pgio_res *resp = &hdr->res; in nfs_writeback_check_extend()
1496 u64 size = argp->offset + resp->count; in nfs_writeback_check_extend()
1498 if (!(fattr->valid & NFS_ATTR_FATTR_SIZE)) in nfs_writeback_check_extend()
1499 fattr->size = size; in nfs_writeback_check_extend()
1500 if (nfs_size_to_loff_t(fattr->size) < i_size_read(hdr->inode)) { in nfs_writeback_check_extend()
1501 fattr->valid &= ~NFS_ATTR_FATTR_SIZE; in nfs_writeback_check_extend()
1504 if (size != fattr->size) in nfs_writeback_check_extend()
1509 fattr->valid |= NFS_ATTR_FATTR_SIZE; in nfs_writeback_check_extend()
1514 struct nfs_fattr *fattr = &hdr->fattr; in nfs_writeback_update_inode()
1515 struct inode *inode = hdr->inode; in nfs_writeback_update_inode()
1518 spin_lock(&inode->i_lock); in nfs_writeback_update_inode()
1520 spin_unlock(&inode->i_lock); in nfs_writeback_update_inode()
1524 spin_lock(&inode->i_lock); in nfs_writeback_update_inode()
1527 spin_unlock(&inode->i_lock); in nfs_writeback_update_inode()
1541 * ->write_done will attempt to use post-op attributes to detect in nfs_writeback_done()
1543 * of close-to-open would allow us to continue caching even if in nfs_writeback_done()
1547 status = NFS_PROTO(inode)->write_done(task, hdr); in nfs_writeback_done()
1551 nfs_add_stats(inode, NFSIOS_SERVERWRITTENBYTES, hdr->res.count); in nfs_writeback_done()
1554 if (task->tk_status >= 0) { in nfs_writeback_done()
1555 enum nfs3_stable_how committed = hdr->res.verf->committed; in nfs_writeback_done()
1563 set_bit(NFS_IOHDR_UNSTABLE_WRITES, &hdr->flags); in nfs_writeback_done()
1566 if (committed < hdr->args.stable) { in nfs_writeback_done()
1581 NFS_SERVER(inode)->nfs_client->cl_hostname, in nfs_writeback_done()
1582 committed, hdr->args.stable); in nfs_writeback_done()
1590 spin_lock(&inode->i_lock); in nfs_writeback_done()
1592 spin_unlock(&inode->i_lock); in nfs_writeback_done()
1603 struct nfs_pgio_args *argp = &hdr->args; in nfs_writeback_result()
1604 struct nfs_pgio_res *resp = &hdr->res; in nfs_writeback_result()
1606 if (resp->count < argp->count) { in nfs_writeback_result()
1610 nfs_inc_stats(hdr->inode, NFSIOS_SHORTWRITE); in nfs_writeback_result()
1613 if (resp->count == 0) { in nfs_writeback_result()
1617 argp->count); in nfs_writeback_result()
1620 nfs_set_pgio_error(hdr, -EIO, argp->offset); in nfs_writeback_result()
1621 task->tk_status = -EIO; in nfs_writeback_result()
1625 /* For non rpc-based layout drivers, retry-through-MDS */ in nfs_writeback_result()
1626 if (!task->tk_ops) { in nfs_writeback_result()
1627 hdr->pnfs_error = -EAGAIN; in nfs_writeback_result()
1632 if (resp->verf->committed != NFS_UNSTABLE) { in nfs_writeback_result()
1634 hdr->mds_offset += resp->count; in nfs_writeback_result()
1635 argp->offset += resp->count; in nfs_writeback_result()
1636 argp->pgbase += resp->count; in nfs_writeback_result()
1637 argp->count -= resp->count; in nfs_writeback_result()
1642 argp->stable = NFS_FILE_SYNC; in nfs_writeback_result()
1644 resp->count = 0; in nfs_writeback_result()
1645 resp->verf->committed = 0; in nfs_writeback_result()
1652 return wait_var_event_killable(&cinfo->rpcs_out, in wait_on_commit()
1653 !atomic_read(&cinfo->rpcs_out)); in wait_on_commit()
1658 atomic_inc(&cinfo->rpcs_out); in nfs_commit_begin()
1663 if (atomic_dec_and_test(&cinfo->rpcs_out)) { in nfs_commit_end()
1664 wake_up_var(&cinfo->rpcs_out); in nfs_commit_end()
1672 put_nfs_open_context(data->context); in nfs_commitdata_release()
1686 .rpc_argp = &data->args, in nfs_initiate_commit()
1687 .rpc_resp = &data->res, in nfs_initiate_commit()
1688 .rpc_cred = data->cred, in nfs_initiate_commit()
1691 .task = &data->task, in nfs_initiate_commit()
1701 if (nfs_server_capable(data->inode, NFS_CAP_MOVEABLE)) in nfs_initiate_commit()
1705 nfs_ops->commit_setup(data, &msg, &task_setup_data.rpc_client); in nfs_initiate_commit()
1729 if (lwb < (req_offset(req) + req->wb_bytes)) in nfs_get_lwb()
1730 lwb = req_offset(req) + req->wb_bytes; in nfs_get_lwb()
1748 * NB: take care not to mess about with data->commit et al. */ in nfs_init_commit()
1751 list_splice_init(head, &data->pages); in nfs_init_commit()
1753 first = nfs_list_entry(data->pages.next); in nfs_init_commit()
1755 inode = d_inode(ctx->dentry); in nfs_init_commit()
1757 data->inode = inode; in nfs_init_commit()
1758 data->cred = ctx->cred; in nfs_init_commit()
1759 data->lseg = lseg; /* reference transferred */ in nfs_init_commit()
1762 data->lwb = nfs_get_lwb(&data->pages); in nfs_init_commit()
1763 data->mds_ops = &nfs_commit_ops; in nfs_init_commit()
1764 data->completion_ops = cinfo->completion_ops; in nfs_init_commit()
1765 data->dreq = cinfo->dreq; in nfs_init_commit()
1767 data->args.fh = NFS_FH(data->inode); in nfs_init_commit()
1769 data->args.offset = 0; in nfs_init_commit()
1770 data->args.count = 0; in nfs_init_commit()
1771 data->context = get_nfs_open_context(ctx); in nfs_init_commit()
1772 data->res.fattr = &data->fattr; in nfs_init_commit()
1773 data->res.verf = &data->verf; in nfs_init_commit()
1774 nfs_fattr_init(&data->fattr); in nfs_init_commit()
1775 nfs_commit_begin(cinfo->mds); in nfs_init_commit()
1787 req = nfs_list_entry(page_list->next); in nfs_retry_commit()
1821 nfs_retry_commit(head, NULL, cinfo, -1); in nfs_commit_list()
1822 return -ENOMEM; in nfs_commit_list()
1827 if (NFS_SERVER(inode)->nfs_client->cl_minorversion) in nfs_commit_list()
1830 localio = nfs_local_open_fh(NFS_SERVER(inode)->nfs_client, data->cred, in nfs_commit_list()
1831 data->args.fh, &data->context->nfl, in nfs_commit_list()
1832 data->context->mode); in nfs_commit_list()
1834 data->mds_ops, how, in nfs_commit_list()
1845 /* Call the NFS version-specific code */ in nfs_commit_done()
1846 NFS_PROTO(data->inode)->commit_done(task, data); in nfs_commit_done()
1852 const struct nfs_writeverf *verf = data->res.verf; in nfs_commit_release_pages()
1854 int status = data->task.tk_status; in nfs_commit_release_pages()
1858 while (!list_empty(&data->pages)) { in nfs_commit_release_pages()
1859 req = nfs_list_entry(data->pages.next); in nfs_commit_release_pages()
1865 nfs_req_openctx(req)->dentry->d_sb->s_id, in nfs_commit_release_pages()
1866 (unsigned long long)NFS_FILEID(d_inode(nfs_req_openctx(req)->dentry)), in nfs_commit_release_pages()
1867 req->wb_bytes, in nfs_commit_release_pages()
1871 trace_nfs_commit_error(data->inode, req, in nfs_commit_release_pages()
1892 atomic_long_inc(&NFS_I(data->inode)->redirtied_pages); in nfs_commit_release_pages()
1899 nfs_init_cinfo(&cinfo, data->inode, data->dreq); in nfs_commit_release_pages()
1907 data->completion_ops->completion(data); in nfs_commit_release()
1952 if (wbc && wbc->sync_mode == WB_SYNC_NONE) { in __nfs_commit_inode()
1953 if (nscan < wbc->nr_to_write) in __nfs_commit_inode()
1954 wbc->nr_to_write -= nscan; in __nfs_commit_inode()
1956 wbc->nr_to_write = 0; in __nfs_commit_inode()
1980 if (wbc->sync_mode == WB_SYNC_NONE) { in nfs_write_inode()
1982 if (!atomic_long_read(&nfsi->commit_info.ncommit)) in nfs_write_inode()
1985 /* Don't commit yet if this is a non-blocking flush and there in nfs_write_inode()
1988 if (mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK)) in nfs_write_inode()
1999 } else if (atomic_long_read(&nfsi->commit_info.ncommit)) in nfs_write_inode()
2003 if (!atomic_read(&nfsi->commit_info.rpcs_out)) in nfs_write_inode()
2024 ret = pnfs_sync_inode(mapping->host, true); in nfs_filemap_write_and_wait_range()
2038 ret = filemap_write_and_wait(inode->i_mapping); in nfs_wb_all()
2079 * nfs_wb_folio - Write back all requests on one page
2094 .range_end = range_start + len - 1, in nfs_wb_folio()
2122 struct folio *src, enum migrate_mode mode) in nfs_migrate_folio() argument
2126 * an in-progress read or write request. Don't try to migrate it. in nfs_migrate_folio()
2132 if (folio_test_private(src)) in nfs_migrate_folio()
2133 return -EBUSY; in nfs_migrate_folio()
2135 if (folio_test_private_2(src)) { /* [DEPRECATED] */ in nfs_migrate_folio()
2137 return -EBUSY; in nfs_migrate_folio()
2138 folio_wait_private_2(src); in nfs_migrate_folio()
2141 return migrate_folio(mapping, dst, src, mode); in nfs_migrate_folio()
2152 return -ENOMEM; in nfs_init_writepagecache()
2187 nfs_congestion_kb = (16*int_sqrt(totalram_pages())) << (PAGE_SHIFT-10); in nfs_init_writepagecache()
2199 return -ENOMEM; in nfs_init_writepagecache()