Lines Matching +full:data +full:- +full:mirror
1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (c) 2014, Primary Data, Inc. All rights reserved.
49 struct nfs4_ff_layout_mirror *mirror);
58 pnfs_init_ds_commit_info(&ffl->commit_info); in ff_layout_alloc_layout_hdr()
59 INIT_LIST_HEAD(&ffl->error_list); in ff_layout_alloc_layout_hdr()
60 INIT_LIST_HEAD(&ffl->mirrors); in ff_layout_alloc_layout_hdr()
61 ffl->last_report_time = ktime_get(); in ff_layout_alloc_layout_hdr()
62 ffl->commit_info.ops = &ff_layout_commit_ops; in ff_layout_alloc_layout_hdr()
63 return &ffl->generic_hdr; in ff_layout_alloc_layout_hdr()
74 list_for_each_entry_safe(err, n, &ffl->error_list, list) { in ff_layout_free_layout_hdr()
75 list_del(&err->list); in ff_layout_free_layout_hdr()
87 return -ENOBUFS; in decode_pnfs_stateid()
88 stateid->type = NFS4_PNFS_DS_STATEID_TYPE; in decode_pnfs_stateid()
89 memcpy(stateid->data, p, NFS4_STATEID_SIZE); in decode_pnfs_stateid()
101 return -ENOBUFS; in decode_deviceid()
113 return -ENOBUFS; in decode_nfs_fh()
114 fh->size = be32_to_cpup(p++); in decode_nfs_fh()
115 if (fh->size > NFS_MAXFHSIZE) { in decode_nfs_fh()
117 fh->size); in decode_nfs_fh()
118 return -EOVERFLOW; in decode_nfs_fh()
120 /* fh.data */ in decode_nfs_fh()
121 p = xdr_inline_decode(xdr, fh->size); in decode_nfs_fh()
123 return -ENOBUFS; in decode_nfs_fh()
124 memcpy(&fh->data, p, fh->size); in decode_nfs_fh()
125 dprintk("%s: fh len %d\n", __func__, fh->size); in decode_nfs_fh()
147 return -ENOBUFS; in decode_name()
150 return -EINVAL; in decode_name()
157 return -ENOBUFS; in decode_name()
160 return -EINVAL; in decode_name()
170 if (m1->fh_versions_cnt != m2->fh_versions_cnt) in ff_mirror_match_fh()
172 for (i = 0; i < m1->fh_versions_cnt; i++) { in ff_mirror_match_fh()
174 for (j = 0; j < m2->fh_versions_cnt; j++) { in ff_mirror_match_fh()
175 if (nfs_compare_fh(&m1->fh_versions[i], in ff_mirror_match_fh()
176 &m2->fh_versions[j]) == 0) { in ff_mirror_match_fh()
189 struct nfs4_ff_layout_mirror *mirror) in ff_layout_add_mirror() argument
193 struct inode *inode = lo->plh_inode; in ff_layout_add_mirror()
195 spin_lock(&inode->i_lock); in ff_layout_add_mirror()
196 list_for_each_entry(pos, &ff_layout->mirrors, mirrors) { in ff_layout_add_mirror()
197 if (memcmp(&mirror->devid, &pos->devid, sizeof(pos->devid)) != 0) in ff_layout_add_mirror()
199 if (!ff_mirror_match_fh(mirror, pos)) in ff_layout_add_mirror()
201 if (refcount_inc_not_zero(&pos->ref)) { in ff_layout_add_mirror()
202 spin_unlock(&inode->i_lock); in ff_layout_add_mirror()
206 list_add(&mirror->mirrors, &ff_layout->mirrors); in ff_layout_add_mirror()
207 mirror->layout = lo; in ff_layout_add_mirror()
208 spin_unlock(&inode->i_lock); in ff_layout_add_mirror()
209 return mirror; in ff_layout_add_mirror()
213 ff_layout_remove_mirror(struct nfs4_ff_layout_mirror *mirror) in ff_layout_remove_mirror() argument
216 if (mirror->layout == NULL) in ff_layout_remove_mirror()
218 inode = mirror->layout->plh_inode; in ff_layout_remove_mirror()
219 spin_lock(&inode->i_lock); in ff_layout_remove_mirror()
220 list_del(&mirror->mirrors); in ff_layout_remove_mirror()
221 spin_unlock(&inode->i_lock); in ff_layout_remove_mirror()
222 mirror->layout = NULL; in ff_layout_remove_mirror()
227 struct nfs4_ff_layout_mirror *mirror; in ff_layout_alloc_mirror() local
229 mirror = kzalloc(sizeof(*mirror), gfp_flags); in ff_layout_alloc_mirror()
230 if (mirror != NULL) { in ff_layout_alloc_mirror()
231 spin_lock_init(&mirror->lock); in ff_layout_alloc_mirror()
232 refcount_set(&mirror->ref, 1); in ff_layout_alloc_mirror()
233 INIT_LIST_HEAD(&mirror->mirrors); in ff_layout_alloc_mirror()
235 return mirror; in ff_layout_alloc_mirror()
238 static void ff_layout_free_mirror(struct nfs4_ff_layout_mirror *mirror) in ff_layout_free_mirror() argument
242 ff_layout_remove_mirror(mirror); in ff_layout_free_mirror()
243 kfree(mirror->fh_versions); in ff_layout_free_mirror()
244 cred = rcu_access_pointer(mirror->ro_cred); in ff_layout_free_mirror()
246 cred = rcu_access_pointer(mirror->rw_cred); in ff_layout_free_mirror()
248 nfs4_ff_layout_put_deviceid(mirror->mirror_ds); in ff_layout_free_mirror()
249 kfree(mirror); in ff_layout_free_mirror()
252 static void ff_layout_put_mirror(struct nfs4_ff_layout_mirror *mirror) in ff_layout_put_mirror() argument
254 if (mirror != NULL && refcount_dec_and_test(&mirror->ref)) in ff_layout_put_mirror()
255 ff_layout_free_mirror(mirror); in ff_layout_put_mirror()
262 for (i = 0; i < fls->mirror_array_cnt; i++) in ff_layout_free_mirror_array()
263 ff_layout_put_mirror(fls->mirror_array[i]); in ff_layout_free_mirror_array()
282 if (fl1->mirror_array_cnt != fl2->mirror_array_cnt) in ff_lseg_match_mirrors()
284 for (i = 0; i < fl1->mirror_array_cnt; i++) { in ff_lseg_match_mirrors()
285 if (fl1->mirror_array[i] != fl2->mirror_array[i]) in ff_lseg_match_mirrors()
297 if (l1->iomode != l2->iomode) in ff_lseg_range_is_after()
298 return l1->iomode != IOMODE_READ; in ff_lseg_range_is_after()
299 end1 = pnfs_calc_offset_end(l1->offset, l1->length); in ff_lseg_range_is_after()
300 end2 = pnfs_calc_offset_end(l2->offset, l2->length); in ff_lseg_range_is_after()
301 if (end1 < l2->offset) in ff_lseg_range_is_after()
303 if (end2 < l1->offset) in ff_lseg_range_is_after()
305 return l2->offset <= l1->offset; in ff_lseg_range_is_after()
314 if (test_bit(NFS_LSEG_LAYOUTRETURN, &old->pls_flags)) in ff_lseg_merge()
316 if (new->pls_range.iomode != old->pls_range.iomode) in ff_lseg_merge()
318 old_end = pnfs_calc_offset_end(old->pls_range.offset, in ff_lseg_merge()
319 old->pls_range.length); in ff_lseg_merge()
320 if (old_end < new->pls_range.offset) in ff_lseg_merge()
322 new_end = pnfs_calc_offset_end(new->pls_range.offset, in ff_lseg_merge()
323 new->pls_range.length); in ff_lseg_merge()
324 if (new_end < old->pls_range.offset) in ff_lseg_merge()
332 if (new->pls_range.offset < old->pls_range.offset) in ff_lseg_merge()
333 new->pls_range.offset = old->pls_range.offset; in ff_lseg_merge()
334 new->pls_range.length = pnfs_calc_offset_length(new->pls_range.offset, in ff_lseg_merge()
336 if (test_bit(NFS_LSEG_ROC, &old->pls_flags)) in ff_lseg_merge()
337 set_bit(NFS_LSEG_ROC, &new->pls_flags); in ff_lseg_merge()
356 for (i = 0; i < fls->mirror_array_cnt - 1; i++) { in ff_layout_sort_mirrors()
357 for (j = i + 1; j < fls->mirror_array_cnt; j++) in ff_layout_sort_mirrors()
358 if (fls->mirror_array[i]->efficiency < in ff_layout_sort_mirrors()
359 fls->mirror_array[j]->efficiency) in ff_layout_sort_mirrors()
360 swap(fls->mirror_array[i], in ff_layout_sort_mirrors()
361 fls->mirror_array[j]); in ff_layout_sort_mirrors()
380 dprintk("--> %s\n", __func__); in ff_layout_alloc_lseg()
383 return ERR_PTR(-ENOMEM); in ff_layout_alloc_lseg()
385 xdr_init_decode_pages(&stream, &buf, lgr->layoutp->pages, in ff_layout_alloc_lseg()
386 lgr->layoutp->len); in ff_layout_alloc_lseg()
390 rc = -EIO; in ff_layout_alloc_lseg()
404 rc = -ENOMEM; in ff_layout_alloc_lseg()
410 fls->mirror_array_cnt = mirror_array_cnt; in ff_layout_alloc_lseg()
411 fls->stripe_unit = stripe_unit; in ff_layout_alloc_lseg()
413 for (i = 0; i < fls->mirror_array_cnt; i++) { in ff_layout_alloc_lseg()
414 struct nfs4_ff_layout_mirror *mirror; in ff_layout_alloc_lseg() local
422 rc = -EIO; in ff_layout_alloc_lseg()
432 fls->mirror_array[i] = ff_layout_alloc_mirror(gfp_flags); in ff_layout_alloc_lseg()
433 if (fls->mirror_array[i] == NULL) { in ff_layout_alloc_lseg()
434 rc = -ENOMEM; in ff_layout_alloc_lseg()
438 fls->mirror_array[i]->ds_count = ds_count; in ff_layout_alloc_lseg()
441 rc = decode_deviceid(&stream, &fls->mirror_array[i]->devid); in ff_layout_alloc_lseg()
446 rc = -EIO; in ff_layout_alloc_lseg()
450 fls->mirror_array[i]->efficiency = be32_to_cpup(p); in ff_layout_alloc_lseg()
453 rc = decode_pnfs_stateid(&stream, &fls->mirror_array[i]->stateid); in ff_layout_alloc_lseg()
458 rc = -EIO; in ff_layout_alloc_lseg()
464 fls->mirror_array[i]->fh_versions = in ff_layout_alloc_lseg()
467 if (fls->mirror_array[i]->fh_versions == NULL) { in ff_layout_alloc_lseg()
468 rc = -ENOMEM; in ff_layout_alloc_lseg()
474 &fls->mirror_array[i]->fh_versions[j]); in ff_layout_alloc_lseg()
479 fls->mirror_array[i]->fh_versions_cnt = fh_count; in ff_layout_alloc_lseg()
502 rc = -ENOMEM; in ff_layout_alloc_lseg()
505 kcred->fsuid = uid; in ff_layout_alloc_lseg()
506 kcred->fsgid = gid; in ff_layout_alloc_lseg()
509 if (lgr->range.iomode == IOMODE_READ) in ff_layout_alloc_lseg()
510 rcu_assign_pointer(fls->mirror_array[i]->ro_cred, cred); in ff_layout_alloc_lseg()
512 rcu_assign_pointer(fls->mirror_array[i]->rw_cred, cred); in ff_layout_alloc_lseg()
514 mirror = ff_layout_add_mirror(lh, fls->mirror_array[i]); in ff_layout_alloc_lseg()
515 if (mirror != fls->mirror_array[i]) { in ff_layout_alloc_lseg()
517 if (lgr->range.iomode == IOMODE_READ) { in ff_layout_alloc_lseg()
518 cred = xchg(&mirror->ro_cred, cred); in ff_layout_alloc_lseg()
519 rcu_assign_pointer(fls->mirror_array[i]->ro_cred, cred); in ff_layout_alloc_lseg()
521 cred = xchg(&mirror->rw_cred, cred); in ff_layout_alloc_lseg()
522 rcu_assign_pointer(fls->mirror_array[i]->rw_cred, cred); in ff_layout_alloc_lseg()
524 ff_layout_free_mirror(fls->mirror_array[i]); in ff_layout_alloc_lseg()
525 fls->mirror_array[i] = mirror; in ff_layout_alloc_lseg()
529 lgr->range.iomode == IOMODE_READ ? "READ" : "RW", in ff_layout_alloc_lseg()
537 fls->flags = be32_to_cpup(p); in ff_layout_alloc_lseg()
542 for (i=0; i < fls->mirror_array_cnt; i++) in ff_layout_alloc_lseg()
543 fls->mirror_array[i]->report_interval = be32_to_cpup(p); in ff_layout_alloc_lseg()
547 ret = &fls->generic_hdr; in ff_layout_alloc_lseg()
548 dprintk("<-- %s (success)\n", __func__); in ff_layout_alloc_lseg()
555 dprintk("<-- %s (%d)\n", __func__, rc); in ff_layout_alloc_lseg()
564 dprintk("--> %s\n", __func__); in ff_layout_free_lseg()
566 if (lseg->pls_range.iomode == IOMODE_RW) { in ff_layout_free_lseg()
570 ffl = FF_LAYOUT_FROM_HDR(lseg->pls_layout); in ff_layout_free_lseg()
571 inode = ffl->generic_hdr.plh_inode; in ff_layout_free_lseg()
572 spin_lock(&inode->i_lock); in ff_layout_free_lseg()
573 pnfs_generic_ds_cinfo_release_lseg(&ffl->commit_info, lseg); in ff_layout_free_lseg()
574 spin_unlock(&inode->i_lock); in ff_layout_free_lseg()
583 if (atomic_inc_return(&timer->n_ops) == 1) { in nfs4_ff_start_busy_timer()
584 timer->start_time = now; in nfs4_ff_start_busy_timer()
593 if (atomic_dec_return(&timer->n_ops) < 0) in nfs4_ff_end_busy_timer()
596 start = timer->start_time; in nfs4_ff_end_busy_timer()
597 timer->start_time = now; in nfs4_ff_end_busy_timer()
602 nfs4_ff_layoutstat_start_io(struct nfs4_ff_layout_mirror *mirror, in nfs4_ff_layoutstat_start_io() argument
607 struct nfs4_flexfile_layout *ffl = FF_LAYOUT_FROM_HDR(mirror->layout); in nfs4_ff_layoutstat_start_io()
609 nfs4_ff_start_busy_timer(&layoutstat->busy_timer, now); in nfs4_ff_layoutstat_start_io()
610 if (!mirror->start_time) in nfs4_ff_layoutstat_start_io()
611 mirror->start_time = now; in nfs4_ff_layoutstat_start_io()
612 if (mirror->report_interval != 0) in nfs4_ff_layoutstat_start_io()
613 report_interval = (s64)mirror->report_interval * 1000LL; in nfs4_ff_layoutstat_start_io()
616 if (ktime_to_ms(ktime_sub(now, ffl->last_report_time)) >= in nfs4_ff_layoutstat_start_io()
618 ffl->last_report_time = now; in nfs4_ff_layoutstat_start_io()
629 struct nfs4_ff_io_stat *iostat = &layoutstat->io_stat; in nfs4_ff_layout_stat_io_update_requested()
631 iostat->ops_requested++; in nfs4_ff_layout_stat_io_update_requested()
632 iostat->bytes_requested += requested; in nfs4_ff_layout_stat_io_update_requested()
642 struct nfs4_ff_io_stat *iostat = &layoutstat->io_stat; in nfs4_ff_layout_stat_io_update_completed()
646 iostat->ops_completed++; in nfs4_ff_layout_stat_io_update_completed()
647 iostat->bytes_completed += completed; in nfs4_ff_layout_stat_io_update_completed()
648 iostat->bytes_not_delivered += requested - completed; in nfs4_ff_layout_stat_io_update_completed()
650 timer = nfs4_ff_end_busy_timer(&layoutstat->busy_timer, time_completed); in nfs4_ff_layout_stat_io_update_completed()
651 iostat->total_busy_time = in nfs4_ff_layout_stat_io_update_completed()
652 ktime_add(iostat->total_busy_time, timer); in nfs4_ff_layout_stat_io_update_completed()
653 iostat->aggregate_completion_time = in nfs4_ff_layout_stat_io_update_completed()
654 ktime_add(iostat->aggregate_completion_time, in nfs4_ff_layout_stat_io_update_completed()
660 struct nfs4_ff_layout_mirror *mirror, in nfs4_ff_layout_stat_io_start_read() argument
665 spin_lock(&mirror->lock); in nfs4_ff_layout_stat_io_start_read()
666 report = nfs4_ff_layoutstat_start_io(mirror, &mirror->read_stat, now); in nfs4_ff_layout_stat_io_start_read()
667 nfs4_ff_layout_stat_io_update_requested(&mirror->read_stat, requested); in nfs4_ff_layout_stat_io_start_read()
668 set_bit(NFS4_FF_MIRROR_STAT_AVAIL, &mirror->flags); in nfs4_ff_layout_stat_io_start_read()
669 spin_unlock(&mirror->lock); in nfs4_ff_layout_stat_io_start_read()
677 struct nfs4_ff_layout_mirror *mirror, in nfs4_ff_layout_stat_io_end_read() argument
681 spin_lock(&mirror->lock); in nfs4_ff_layout_stat_io_end_read()
682 nfs4_ff_layout_stat_io_update_completed(&mirror->read_stat, in nfs4_ff_layout_stat_io_end_read()
684 ktime_get(), task->tk_start); in nfs4_ff_layout_stat_io_end_read()
685 set_bit(NFS4_FF_MIRROR_STAT_AVAIL, &mirror->flags); in nfs4_ff_layout_stat_io_end_read()
686 spin_unlock(&mirror->lock); in nfs4_ff_layout_stat_io_end_read()
691 struct nfs4_ff_layout_mirror *mirror, in nfs4_ff_layout_stat_io_start_write() argument
696 spin_lock(&mirror->lock); in nfs4_ff_layout_stat_io_start_write()
697 report = nfs4_ff_layoutstat_start_io(mirror , &mirror->write_stat, now); in nfs4_ff_layout_stat_io_start_write()
698 nfs4_ff_layout_stat_io_update_requested(&mirror->write_stat, requested); in nfs4_ff_layout_stat_io_start_write()
699 set_bit(NFS4_FF_MIRROR_STAT_AVAIL, &mirror->flags); in nfs4_ff_layout_stat_io_start_write()
700 spin_unlock(&mirror->lock); in nfs4_ff_layout_stat_io_start_write()
708 struct nfs4_ff_layout_mirror *mirror, in nfs4_ff_layout_stat_io_end_write() argument
716 spin_lock(&mirror->lock); in nfs4_ff_layout_stat_io_end_write()
717 nfs4_ff_layout_stat_io_update_completed(&mirror->write_stat, in nfs4_ff_layout_stat_io_end_write()
718 requested, completed, ktime_get(), task->tk_start); in nfs4_ff_layout_stat_io_end_write()
719 set_bit(NFS4_FF_MIRROR_STAT_AVAIL, &mirror->flags); in nfs4_ff_layout_stat_io_end_write()
720 spin_unlock(&mirror->lock); in nfs4_ff_layout_stat_io_end_write()
747 struct nfs4_ff_layout_mirror *mirror; in ff_layout_choose_ds_for_read() local
752 for (idx = start_idx; idx < fls->mirror_array_cnt; idx++) { in ff_layout_choose_ds_for_read()
753 mirror = FF_LAYOUT_COMP(lseg, idx); in ff_layout_choose_ds_for_read()
754 ds = nfs4_ff_layout_prepare_ds(lseg, mirror, false); in ff_layout_choose_ds_for_read()
759 nfs4_test_deviceid_unavailable(&mirror->mirror_ds->id_node)) in ff_layout_choose_ds_for_read()
799 struct pnfs_layout_segment *lseg = pgio->pg_lseg; in ff_layout_get_ds_for_read()
802 ds = ff_layout_choose_best_ds_for_read(lseg, pgio->pg_mirror_idx, in ff_layout_get_ds_for_read()
804 if (ds || !pgio->pg_mirror_idx) in ff_layout_get_ds_for_read()
814 pnfs_put_lseg(pgio->pg_lseg); in ff_layout_pg_get_read()
815 pgio->pg_lseg = in ff_layout_pg_get_read()
816 pnfs_update_layout(pgio->pg_inode, nfs_req_openctx(req), in ff_layout_pg_get_read()
817 req_offset(req), req->wb_bytes, IOMODE_READ, in ff_layout_pg_get_read()
819 if (IS_ERR(pgio->pg_lseg)) { in ff_layout_pg_get_read()
820 pgio->pg_error = PTR_ERR(pgio->pg_lseg); in ff_layout_pg_get_read()
821 pgio->pg_lseg = NULL; in ff_layout_pg_get_read()
838 struct nfs4_ff_layout_mirror *mirror; in ff_layout_pg_init_read() local
842 if (NFS_SERVER(pgio->pg_inode)->flags & in ff_layout_pg_init_read()
844 pgio->pg_maxretrans = io_maxretrans; in ff_layout_pg_init_read()
848 if (!pgio->pg_lseg) { in ff_layout_pg_init_read()
850 if (!pgio->pg_lseg) in ff_layout_pg_init_read()
853 if (ff_layout_avoid_read_on_rw(pgio->pg_lseg)) { in ff_layout_pg_init_read()
855 if (!pgio->pg_lseg) in ff_layout_pg_init_read()
859 req->wb_nio = 0; in ff_layout_pg_init_read()
863 if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg)) in ff_layout_pg_init_read()
871 mirror = FF_LAYOUT_COMP(pgio->pg_lseg, ds_idx); in ff_layout_pg_init_read()
872 pgm = &pgio->pg_mirrors[0]; in ff_layout_pg_init_read()
873 pgm->pg_bsize = mirror->mirror_ds->ds_versions[0].rsize; in ff_layout_pg_init_read()
875 pgio->pg_mirror_idx = ds_idx; in ff_layout_pg_init_read()
878 if (pgio->pg_error < 0) { in ff_layout_pg_init_read()
879 if (pgio->pg_error != -EAGAIN) in ff_layout_pg_init_read()
881 /* Retry getting layout segment if lower layer returned -EAGAIN */ in ff_layout_pg_init_read()
882 if (pgio->pg_maxretrans && req->wb_nio++ > pgio->pg_maxretrans) { in ff_layout_pg_init_read()
883 if (NFS_SERVER(pgio->pg_inode)->flags & NFS_MOUNT_SOFTERR) in ff_layout_pg_init_read()
884 pgio->pg_error = -ETIMEDOUT; in ff_layout_pg_init_read()
886 pgio->pg_error = -EIO; in ff_layout_pg_init_read()
889 pgio->pg_error = 0; in ff_layout_pg_init_read()
895 trace_pnfs_mds_fallback_pg_init_read(pgio->pg_inode, in ff_layout_pg_init_read()
897 NFS_I(pgio->pg_inode)->layout, in ff_layout_pg_init_read()
898 pgio->pg_lseg); in ff_layout_pg_init_read()
899 pgio->pg_maxretrans = 0; in ff_layout_pg_init_read()
907 struct nfs4_ff_layout_mirror *mirror; in ff_layout_pg_init_write() local
914 if (!pgio->pg_lseg) { in ff_layout_pg_init_write()
915 pgio->pg_lseg = in ff_layout_pg_init_write()
916 pnfs_update_layout(pgio->pg_inode, nfs_req_openctx(req), in ff_layout_pg_init_write()
917 req_offset(req), req->wb_bytes, in ff_layout_pg_init_write()
919 if (IS_ERR(pgio->pg_lseg)) { in ff_layout_pg_init_write()
920 pgio->pg_error = PTR_ERR(pgio->pg_lseg); in ff_layout_pg_init_write()
921 pgio->pg_lseg = NULL; in ff_layout_pg_init_write()
926 if (pgio->pg_lseg == NULL) in ff_layout_pg_init_write()
930 if (pgio->pg_mirror_count != FF_LAYOUT_MIRROR_COUNT(pgio->pg_lseg)) in ff_layout_pg_init_write()
933 for (i = 0; i < pgio->pg_mirror_count; i++) { in ff_layout_pg_init_write()
934 mirror = FF_LAYOUT_COMP(pgio->pg_lseg, i); in ff_layout_pg_init_write()
935 ds = nfs4_ff_layout_prepare_ds(pgio->pg_lseg, mirror, true); in ff_layout_pg_init_write()
937 if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg)) in ff_layout_pg_init_write()
944 pgm = &pgio->pg_mirrors[i]; in ff_layout_pg_init_write()
945 pgm->pg_bsize = mirror->mirror_ds->ds_versions[0].wsize; in ff_layout_pg_init_write()
948 if (NFS_SERVER(pgio->pg_inode)->flags & in ff_layout_pg_init_write()
950 pgio->pg_maxretrans = io_maxretrans; in ff_layout_pg_init_write()
954 pgio->pg_error = -EAGAIN; in ff_layout_pg_init_write()
957 trace_pnfs_mds_fallback_pg_init_write(pgio->pg_inode, in ff_layout_pg_init_write()
959 NFS_I(pgio->pg_inode)->layout, in ff_layout_pg_init_write()
960 pgio->pg_lseg); in ff_layout_pg_init_write()
961 pgio->pg_maxretrans = 0; in ff_layout_pg_init_write()
963 pgio->pg_error = -EAGAIN; in ff_layout_pg_init_write()
970 if (!pgio->pg_lseg) { in ff_layout_pg_get_mirror_count_write()
971 pgio->pg_lseg = in ff_layout_pg_get_mirror_count_write()
972 pnfs_update_layout(pgio->pg_inode, nfs_req_openctx(req), in ff_layout_pg_get_mirror_count_write()
973 req_offset(req), req->wb_bytes, in ff_layout_pg_get_mirror_count_write()
975 if (IS_ERR(pgio->pg_lseg)) { in ff_layout_pg_get_mirror_count_write()
976 pgio->pg_error = PTR_ERR(pgio->pg_lseg); in ff_layout_pg_get_mirror_count_write()
977 pgio->pg_lseg = NULL; in ff_layout_pg_get_mirror_count_write()
981 if (pgio->pg_lseg) in ff_layout_pg_get_mirror_count_write()
982 return FF_LAYOUT_MIRROR_COUNT(pgio->pg_lseg); in ff_layout_pg_get_mirror_count_write()
984 trace_pnfs_mds_fallback_pg_get_mirror_count(pgio->pg_inode, in ff_layout_pg_get_mirror_count_write()
986 NFS_I(pgio->pg_inode)->layout, in ff_layout_pg_get_mirror_count_write()
987 pgio->pg_lseg); in ff_layout_pg_get_mirror_count_write()
997 u32 old = desc->pg_mirror_idx; in ff_layout_pg_set_mirror_write()
999 desc->pg_mirror_idx = idx; in ff_layout_pg_set_mirror_write()
1006 return &desc->pg_mirrors[idx]; in ff_layout_pg_get_mirror_write()
1028 struct rpc_task *task = &hdr->task; in ff_layout_reset_write()
1030 pnfs_layoutcommit_inode(hdr->inode, false); in ff_layout_reset_write()
1035 hdr->task.tk_pid, in ff_layout_reset_write()
1036 hdr->inode->i_sb->s_id, in ff_layout_reset_write()
1037 (unsigned long long)NFS_FILEID(hdr->inode), in ff_layout_reset_write()
1038 hdr->args.count, in ff_layout_reset_write()
1039 (unsigned long long)hdr->args.offset); in ff_layout_reset_write()
1041 hdr->completion_ops->reschedule_io(hdr); in ff_layout_reset_write()
1045 if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) { in ff_layout_reset_write()
1048 hdr->task.tk_pid, in ff_layout_reset_write()
1049 hdr->inode->i_sb->s_id, in ff_layout_reset_write()
1050 (unsigned long long)NFS_FILEID(hdr->inode), in ff_layout_reset_write()
1051 hdr->args.count, in ff_layout_reset_write()
1052 (unsigned long long)hdr->args.offset); in ff_layout_reset_write()
1054 trace_pnfs_mds_fallback_write_done(hdr->inode, in ff_layout_reset_write()
1055 hdr->args.offset, hdr->args.count, in ff_layout_reset_write()
1056 IOMODE_RW, NFS_I(hdr->inode)->layout, in ff_layout_reset_write()
1057 hdr->lseg); in ff_layout_reset_write()
1058 task->tk_status = pnfs_write_done_resend_to_mds(hdr); in ff_layout_reset_write()
1064 u32 idx = hdr->pgio_mirror_idx + 1; in ff_layout_resend_pnfs_read()
1067 if (ff_layout_choose_any_ds_for_read(hdr->lseg, idx, &new_idx)) in ff_layout_resend_pnfs_read()
1068 ff_layout_send_layouterror(hdr->lseg); in ff_layout_resend_pnfs_read()
1070 pnfs_error_mark_layout_for_return(hdr->inode, hdr->lseg); in ff_layout_resend_pnfs_read()
1076 struct rpc_task *task = &hdr->task; in ff_layout_reset_read()
1078 pnfs_layoutcommit_inode(hdr->inode, false); in ff_layout_reset_read()
1079 pnfs_error_mark_layout_for_return(hdr->inode, hdr->lseg); in ff_layout_reset_read()
1081 if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) { in ff_layout_reset_read()
1084 hdr->task.tk_pid, in ff_layout_reset_read()
1085 hdr->inode->i_sb->s_id, in ff_layout_reset_read()
1086 (unsigned long long)NFS_FILEID(hdr->inode), in ff_layout_reset_read()
1087 hdr->args.count, in ff_layout_reset_read()
1088 (unsigned long long)hdr->args.offset); in ff_layout_reset_read()
1090 trace_pnfs_mds_fallback_read_done(hdr->inode, in ff_layout_reset_read()
1091 hdr->args.offset, hdr->args.count, in ff_layout_reset_read()
1092 IOMODE_READ, NFS_I(hdr->inode)->layout, in ff_layout_reset_read()
1093 hdr->lseg); in ff_layout_reset_read()
1094 task->tk_status = pnfs_read_done_resend_to_mds(hdr); in ff_layout_reset_read()
1105 struct pnfs_layout_hdr *lo = lseg->pls_layout; in ff_layout_async_handle_error_v4()
1106 struct inode *inode = lo->plh_inode; in ff_layout_async_handle_error_v4()
1108 struct nfs4_slot_table *tbl = &clp->cl_session->fc_slot_table; in ff_layout_async_handle_error_v4()
1115 if (!task->tk_xprt) in ff_layout_async_handle_error_v4()
1117 xprt_force_disconnect(task->tk_xprt); in ff_layout_async_handle_error_v4()
1127 "flags 0x%x\n", __func__, task->tk_status, in ff_layout_async_handle_error_v4()
1128 clp->cl_exchange_flags); in ff_layout_async_handle_error_v4()
1129 nfs4_schedule_session_recovery(clp->cl_session, task->tk_status); in ff_layout_async_handle_error_v4()
1132 nfs_inc_stats(lseg->pls_layout->plh_inode, NFSIOS_DELAY); in ff_layout_async_handle_error_v4()
1147 task->tk_status); in ff_layout_async_handle_error_v4()
1156 rpc_wake_up(&tbl->slot_tbl_waitq); in ff_layout_async_handle_error_v4()
1162 switch (task->tk_status) { in ff_layout_async_handle_error_v4()
1164 case -ECONNREFUSED: in ff_layout_async_handle_error_v4()
1165 case -EHOSTDOWN: in ff_layout_async_handle_error_v4()
1166 case -EHOSTUNREACH: in ff_layout_async_handle_error_v4()
1167 case -ENETUNREACH: in ff_layout_async_handle_error_v4()
1168 case -EIO: in ff_layout_async_handle_error_v4()
1169 case -ETIMEDOUT: in ff_layout_async_handle_error_v4()
1170 case -EPIPE: in ff_layout_async_handle_error_v4()
1171 case -EPROTO: in ff_layout_async_handle_error_v4()
1172 case -ENODEV: in ff_layout_async_handle_error_v4()
1174 task->tk_status); in ff_layout_async_handle_error_v4()
1175 nfs4_delete_deviceid(devid->ld, devid->nfs_client, in ff_layout_async_handle_error_v4()
1176 &devid->deviceid); in ff_layout_async_handle_error_v4()
1177 rpc_wake_up(&tbl->slot_tbl_waitq); in ff_layout_async_handle_error_v4()
1184 return -NFS4ERR_RESET_TO_PNFS; in ff_layout_async_handle_error_v4()
1187 task->tk_status); in ff_layout_async_handle_error_v4()
1188 return -NFS4ERR_RESET_TO_MDS; in ff_layout_async_handle_error_v4()
1191 task->tk_status = 0; in ff_layout_async_handle_error_v4()
1192 return -EAGAIN; in ff_layout_async_handle_error_v4()
1195 /* Retry all errors through either pNFS or MDS except for -EJUKEBOX */
1209 if (!task->tk_xprt) in ff_layout_async_handle_error_v3()
1211 xprt_force_disconnect(task->tk_xprt); in ff_layout_async_handle_error_v3()
1222 nfs_inc_stats(lseg->pls_layout->plh_inode, NFSIOS_DELAY); in ff_layout_async_handle_error_v3()
1228 switch (task->tk_status) { in ff_layout_async_handle_error_v3()
1230 case -EACCES: in ff_layout_async_handle_error_v3()
1231 case -ESTALE: in ff_layout_async_handle_error_v3()
1232 case -EISDIR: in ff_layout_async_handle_error_v3()
1233 case -EBADHANDLE: in ff_layout_async_handle_error_v3()
1234 case -ELOOP: in ff_layout_async_handle_error_v3()
1235 case -ENOSPC: in ff_layout_async_handle_error_v3()
1237 case -EJUKEBOX: in ff_layout_async_handle_error_v3()
1238 nfs_inc_stats(lseg->pls_layout->plh_inode, NFSIOS_DELAY); in ff_layout_async_handle_error_v3()
1242 task->tk_status); in ff_layout_async_handle_error_v3()
1243 nfs4_delete_deviceid(devid->ld, devid->nfs_client, in ff_layout_async_handle_error_v3()
1244 &devid->deviceid); in ff_layout_async_handle_error_v3()
1248 return -NFS4ERR_RESET_TO_PNFS; in ff_layout_async_handle_error_v3()
1250 task->tk_status = 0; in ff_layout_async_handle_error_v3()
1253 return -EAGAIN; in ff_layout_async_handle_error_v3()
1263 int vers = clp->cl_nfs_mod->rpc_vers->number; in ff_layout_async_handle_error()
1265 if (task->tk_status >= 0) { in ff_layout_async_handle_error()
1272 return -NFS4ERR_RESET_TO_PNFS; in ff_layout_async_handle_error()
1292 struct nfs4_ff_layout_mirror *mirror; in ff_layout_io_track_ds_error() local
1298 case -ETIMEDOUT: in ff_layout_io_track_ds_error()
1299 case -EPFNOSUPPORT: in ff_layout_io_track_ds_error()
1300 case -EPROTONOSUPPORT: in ff_layout_io_track_ds_error()
1301 case -EOPNOTSUPP: in ff_layout_io_track_ds_error()
1302 case -EINVAL: in ff_layout_io_track_ds_error()
1303 case -ECONNREFUSED: in ff_layout_io_track_ds_error()
1304 case -ECONNRESET: in ff_layout_io_track_ds_error()
1305 case -EHOSTDOWN: in ff_layout_io_track_ds_error()
1306 case -EHOSTUNREACH: in ff_layout_io_track_ds_error()
1307 case -ENETDOWN: in ff_layout_io_track_ds_error()
1308 case -ENETUNREACH: in ff_layout_io_track_ds_error()
1309 case -EADDRINUSE: in ff_layout_io_track_ds_error()
1310 case -ENOBUFS: in ff_layout_io_track_ds_error()
1311 case -EPIPE: in ff_layout_io_track_ds_error()
1312 case -EPERM: in ff_layout_io_track_ds_error()
1313 case -EPROTO: in ff_layout_io_track_ds_error()
1314 case -ENODEV: in ff_layout_io_track_ds_error()
1317 case -EACCES: in ff_layout_io_track_ds_error()
1325 mirror = FF_LAYOUT_COMP(lseg, idx); in ff_layout_io_track_ds_error()
1326 err = ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout), in ff_layout_io_track_ds_error()
1327 mirror, offset, length, status, opnum, in ff_layout_io_track_ds_error()
1345 pnfs_error_mark_layout_for_return(lseg->pls_layout->plh_inode, in ff_layout_io_track_ds_error()
1358 if (task->tk_status < 0) { in ff_layout_read_done_cb()
1359 ff_layout_io_track_ds_error(hdr->lseg, hdr->pgio_mirror_idx, in ff_layout_read_done_cb()
1360 hdr->args.offset, hdr->args.count, in ff_layout_read_done_cb()
1361 &hdr->res.op_status, OP_READ, in ff_layout_read_done_cb()
1362 task->tk_status); in ff_layout_read_done_cb()
1366 err = ff_layout_async_handle_error(task, hdr->res.op_status, in ff_layout_read_done_cb()
1367 hdr->args.context->state, in ff_layout_read_done_cb()
1368 hdr->ds_clp, hdr->lseg, in ff_layout_read_done_cb()
1369 hdr->pgio_mirror_idx); in ff_layout_read_done_cb()
1372 clear_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags); in ff_layout_read_done_cb()
1373 clear_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags); in ff_layout_read_done_cb()
1375 case -NFS4ERR_RESET_TO_PNFS: in ff_layout_read_done_cb()
1376 set_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags); in ff_layout_read_done_cb()
1377 return task->tk_status; in ff_layout_read_done_cb()
1378 case -NFS4ERR_RESET_TO_MDS: in ff_layout_read_done_cb()
1379 set_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags); in ff_layout_read_done_cb()
1380 return task->tk_status; in ff_layout_read_done_cb()
1381 case -EAGAIN: in ff_layout_read_done_cb()
1388 return -EAGAIN; in ff_layout_read_done_cb()
1394 return !(FF_LAYOUT_LSEG(lseg)->flags & FF_FLAGS_NO_LAYOUTCOMMIT); in ff_layout_need_layoutcommit()
1403 * to follow http://www.rfc-editor.org/errata_search.php?rfc=5661&eid=2751
1415 dprintk("%s inode %lu pls_end_pos %llu\n", __func__, inode->i_ino, in ff_layout_set_layoutcommit()
1416 (unsigned long long) NFS_I(inode)->layout->plh_lwb); in ff_layout_set_layoutcommit()
1422 if (test_and_set_bit(NFS_IOHDR_STAT, &hdr->flags)) in ff_layout_read_record_layoutstats_start()
1424 nfs4_ff_layout_stat_io_start_read(hdr->inode, in ff_layout_read_record_layoutstats_start()
1425 FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx), in ff_layout_read_record_layoutstats_start()
1426 hdr->args.count, in ff_layout_read_record_layoutstats_start()
1427 task->tk_start); in ff_layout_read_record_layoutstats_start()
1433 if (!test_and_clear_bit(NFS_IOHDR_STAT, &hdr->flags)) in ff_layout_read_record_layoutstats_done()
1436 FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx), in ff_layout_read_record_layoutstats_done()
1437 hdr->args.count, in ff_layout_read_record_layoutstats_done()
1438 hdr->res.count); in ff_layout_read_record_layoutstats_done()
1439 set_bit(NFS_LSEG_LAYOUTRETURN, &hdr->lseg->pls_flags); in ff_layout_read_record_layoutstats_done()
1445 if (unlikely(test_bit(NFS_CONTEXT_BAD, &hdr->args.context->flags))) { in ff_layout_read_prepare_common()
1446 rpc_exit(task, -EIO); in ff_layout_read_prepare_common()
1447 return -EIO; in ff_layout_read_prepare_common()
1450 if (!pnfs_is_valid_lseg(hdr->lseg)) { in ff_layout_read_prepare_common()
1451 rpc_exit(task, -EAGAIN); in ff_layout_read_prepare_common()
1452 return -EAGAIN; in ff_layout_read_prepare_common()
1464 static void ff_layout_read_prepare_v3(struct rpc_task *task, void *data) in ff_layout_read_prepare_v3() argument
1466 struct nfs_pgio_header *hdr = data; in ff_layout_read_prepare_v3()
1474 static void ff_layout_read_prepare_v4(struct rpc_task *task, void *data) in ff_layout_read_prepare_v4() argument
1476 struct nfs_pgio_header *hdr = data; in ff_layout_read_prepare_v4()
1478 if (nfs4_setup_sequence(hdr->ds_clp, in ff_layout_read_prepare_v4()
1479 &hdr->args.seq_args, in ff_layout_read_prepare_v4()
1480 &hdr->res.seq_res, in ff_layout_read_prepare_v4()
1487 static void ff_layout_read_call_done(struct rpc_task *task, void *data) in ff_layout_read_call_done() argument
1489 struct nfs_pgio_header *hdr = data; in ff_layout_read_call_done()
1491 if (test_bit(NFS_IOHDR_REDO, &hdr->flags) && in ff_layout_read_call_done()
1492 task->tk_status == 0) { in ff_layout_read_call_done()
1493 nfs4_sequence_done(task, &hdr->res.seq_res); in ff_layout_read_call_done()
1498 hdr->mds_ops->rpc_call_done(task, hdr); in ff_layout_read_call_done()
1501 static void ff_layout_read_count_stats(struct rpc_task *task, void *data) in ff_layout_read_count_stats() argument
1503 struct nfs_pgio_header *hdr = data; in ff_layout_read_count_stats()
1507 &NFS_CLIENT(hdr->inode)->cl_metrics[NFSPROC4_CLNT_READ]); in ff_layout_read_count_stats()
1510 static void ff_layout_read_release(void *data) in ff_layout_read_release() argument
1512 struct nfs_pgio_header *hdr = data; in ff_layout_read_release()
1514 ff_layout_read_record_layoutstats_done(&hdr->task, hdr); in ff_layout_read_release()
1515 if (test_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags)) in ff_layout_read_release()
1517 else if (test_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags)) in ff_layout_read_release()
1519 pnfs_generic_rw_release(data); in ff_layout_read_release()
1529 if (task->tk_status < 0) { in ff_layout_write_done_cb()
1530 ff_layout_io_track_ds_error(hdr->lseg, hdr->pgio_mirror_idx, in ff_layout_write_done_cb()
1531 hdr->args.offset, hdr->args.count, in ff_layout_write_done_cb()
1532 &hdr->res.op_status, OP_WRITE, in ff_layout_write_done_cb()
1533 task->tk_status); in ff_layout_write_done_cb()
1537 err = ff_layout_async_handle_error(task, hdr->res.op_status, in ff_layout_write_done_cb()
1538 hdr->args.context->state, in ff_layout_write_done_cb()
1539 hdr->ds_clp, hdr->lseg, in ff_layout_write_done_cb()
1540 hdr->pgio_mirror_idx); in ff_layout_write_done_cb()
1543 clear_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags); in ff_layout_write_done_cb()
1544 clear_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags); in ff_layout_write_done_cb()
1546 case -NFS4ERR_RESET_TO_PNFS: in ff_layout_write_done_cb()
1547 set_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags); in ff_layout_write_done_cb()
1548 return task->tk_status; in ff_layout_write_done_cb()
1549 case -NFS4ERR_RESET_TO_MDS: in ff_layout_write_done_cb()
1550 set_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags); in ff_layout_write_done_cb()
1551 return task->tk_status; in ff_layout_write_done_cb()
1552 case -EAGAIN: in ff_layout_write_done_cb()
1553 return -EAGAIN; in ff_layout_write_done_cb()
1556 if (hdr->res.verf->committed == NFS_FILE_SYNC || in ff_layout_write_done_cb()
1557 hdr->res.verf->committed == NFS_DATA_SYNC) in ff_layout_write_done_cb()
1558 end_offs = hdr->mds_offset + (loff_t)hdr->res.count; in ff_layout_write_done_cb()
1561 ff_layout_set_layoutcommit(hdr->inode, hdr->lseg, end_offs); in ff_layout_write_done_cb()
1564 hdr->fattr.valid = 0; in ff_layout_write_done_cb()
1565 if (task->tk_status >= 0) in ff_layout_write_done_cb()
1572 struct nfs_commit_data *data) in ff_layout_commit_done_cb() argument
1576 if (task->tk_status < 0) { in ff_layout_commit_done_cb()
1577 ff_layout_io_track_ds_error(data->lseg, data->ds_commit_index, in ff_layout_commit_done_cb()
1578 data->args.offset, data->args.count, in ff_layout_commit_done_cb()
1579 &data->res.op_status, OP_COMMIT, in ff_layout_commit_done_cb()
1580 task->tk_status); in ff_layout_commit_done_cb()
1581 trace_ff_layout_commit_error(data); in ff_layout_commit_done_cb()
1584 err = ff_layout_async_handle_error(task, data->res.op_status, in ff_layout_commit_done_cb()
1585 NULL, data->ds_clp, data->lseg, in ff_layout_commit_done_cb()
1586 data->ds_commit_index); in ff_layout_commit_done_cb()
1588 trace_nfs4_pnfs_commit_ds(data, err); in ff_layout_commit_done_cb()
1590 case -NFS4ERR_RESET_TO_PNFS: in ff_layout_commit_done_cb()
1591 pnfs_generic_prepare_to_resend_writes(data); in ff_layout_commit_done_cb()
1592 return -EAGAIN; in ff_layout_commit_done_cb()
1593 case -NFS4ERR_RESET_TO_MDS: in ff_layout_commit_done_cb()
1594 pnfs_generic_prepare_to_resend_writes(data); in ff_layout_commit_done_cb()
1595 return -EAGAIN; in ff_layout_commit_done_cb()
1596 case -EAGAIN: in ff_layout_commit_done_cb()
1598 return -EAGAIN; in ff_layout_commit_done_cb()
1601 ff_layout_set_layoutcommit(data->inode, data->lseg, data->lwb); in ff_layout_commit_done_cb()
1609 if (test_and_set_bit(NFS_IOHDR_STAT, &hdr->flags)) in ff_layout_write_record_layoutstats_start()
1611 nfs4_ff_layout_stat_io_start_write(hdr->inode, in ff_layout_write_record_layoutstats_start()
1612 FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx), in ff_layout_write_record_layoutstats_start()
1613 hdr->args.count, in ff_layout_write_record_layoutstats_start()
1614 task->tk_start); in ff_layout_write_record_layoutstats_start()
1620 if (!test_and_clear_bit(NFS_IOHDR_STAT, &hdr->flags)) in ff_layout_write_record_layoutstats_done()
1623 FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx), in ff_layout_write_record_layoutstats_done()
1624 hdr->args.count, hdr->res.count, in ff_layout_write_record_layoutstats_done()
1625 hdr->res.verf->committed); in ff_layout_write_record_layoutstats_done()
1626 set_bit(NFS_LSEG_LAYOUTRETURN, &hdr->lseg->pls_flags); in ff_layout_write_record_layoutstats_done()
1632 if (unlikely(test_bit(NFS_CONTEXT_BAD, &hdr->args.context->flags))) { in ff_layout_write_prepare_common()
1633 rpc_exit(task, -EIO); in ff_layout_write_prepare_common()
1634 return -EIO; in ff_layout_write_prepare_common()
1637 if (!pnfs_is_valid_lseg(hdr->lseg)) { in ff_layout_write_prepare_common()
1638 rpc_exit(task, -EAGAIN); in ff_layout_write_prepare_common()
1639 return -EAGAIN; in ff_layout_write_prepare_common()
1646 static void ff_layout_write_prepare_v3(struct rpc_task *task, void *data) in ff_layout_write_prepare_v3() argument
1648 struct nfs_pgio_header *hdr = data; in ff_layout_write_prepare_v3()
1656 static void ff_layout_write_prepare_v4(struct rpc_task *task, void *data) in ff_layout_write_prepare_v4() argument
1658 struct nfs_pgio_header *hdr = data; in ff_layout_write_prepare_v4()
1660 if (nfs4_setup_sequence(hdr->ds_clp, in ff_layout_write_prepare_v4()
1661 &hdr->args.seq_args, in ff_layout_write_prepare_v4()
1662 &hdr->res.seq_res, in ff_layout_write_prepare_v4()
1669 static void ff_layout_write_call_done(struct rpc_task *task, void *data) in ff_layout_write_call_done() argument
1671 struct nfs_pgio_header *hdr = data; in ff_layout_write_call_done()
1673 if (test_bit(NFS_IOHDR_REDO, &hdr->flags) && in ff_layout_write_call_done()
1674 task->tk_status == 0) { in ff_layout_write_call_done()
1675 nfs4_sequence_done(task, &hdr->res.seq_res); in ff_layout_write_call_done()
1680 hdr->mds_ops->rpc_call_done(task, hdr); in ff_layout_write_call_done()
1683 static void ff_layout_write_count_stats(struct rpc_task *task, void *data) in ff_layout_write_count_stats() argument
1685 struct nfs_pgio_header *hdr = data; in ff_layout_write_count_stats()
1689 &NFS_CLIENT(hdr->inode)->cl_metrics[NFSPROC4_CLNT_WRITE]); in ff_layout_write_count_stats()
1692 static void ff_layout_write_release(void *data) in ff_layout_write_release() argument
1694 struct nfs_pgio_header *hdr = data; in ff_layout_write_release()
1696 ff_layout_write_record_layoutstats_done(&hdr->task, hdr); in ff_layout_write_release()
1697 if (test_bit(NFS_IOHDR_RESEND_PNFS, &hdr->flags)) { in ff_layout_write_release()
1698 ff_layout_send_layouterror(hdr->lseg); in ff_layout_write_release()
1700 } else if (test_bit(NFS_IOHDR_RESEND_MDS, &hdr->flags)) in ff_layout_write_release()
1702 pnfs_generic_rw_release(data); in ff_layout_write_release()
1708 if (test_and_set_bit(NFS_IOHDR_STAT, &cdata->flags)) in ff_layout_commit_record_layoutstats_start()
1710 nfs4_ff_layout_stat_io_start_write(cdata->inode, in ff_layout_commit_record_layoutstats_start()
1711 FF_LAYOUT_COMP(cdata->lseg, cdata->ds_commit_index), in ff_layout_commit_record_layoutstats_start()
1712 0, task->tk_start); in ff_layout_commit_record_layoutstats_start()
1721 if (!test_and_clear_bit(NFS_IOHDR_STAT, &cdata->flags)) in ff_layout_commit_record_layoutstats_done()
1724 if (task->tk_status == 0) { in ff_layout_commit_record_layoutstats_done()
1725 list_for_each_entry(req, &cdata->pages, wb_list) in ff_layout_commit_record_layoutstats_done()
1726 count += req->wb_bytes; in ff_layout_commit_record_layoutstats_done()
1729 FF_LAYOUT_COMP(cdata->lseg, cdata->ds_commit_index), in ff_layout_commit_record_layoutstats_done()
1731 set_bit(NFS_LSEG_LAYOUTRETURN, &cdata->lseg->pls_flags); in ff_layout_commit_record_layoutstats_done()
1737 if (!pnfs_is_valid_lseg(cdata->lseg)) { in ff_layout_commit_prepare_common()
1738 rpc_exit(task, -EAGAIN); in ff_layout_commit_prepare_common()
1739 return -EAGAIN; in ff_layout_commit_prepare_common()
1746 static void ff_layout_commit_prepare_v3(struct rpc_task *task, void *data) in ff_layout_commit_prepare_v3() argument
1748 if (ff_layout_commit_prepare_common(task, data)) in ff_layout_commit_prepare_v3()
1754 static void ff_layout_commit_prepare_v4(struct rpc_task *task, void *data) in ff_layout_commit_prepare_v4() argument
1756 struct nfs_commit_data *wdata = data; in ff_layout_commit_prepare_v4()
1758 if (nfs4_setup_sequence(wdata->ds_clp, in ff_layout_commit_prepare_v4()
1759 &wdata->args.seq_args, in ff_layout_commit_prepare_v4()
1760 &wdata->res.seq_res, in ff_layout_commit_prepare_v4()
1763 ff_layout_commit_prepare_common(task, data); in ff_layout_commit_prepare_v4()
1766 static void ff_layout_commit_done(struct rpc_task *task, void *data) in ff_layout_commit_done() argument
1768 pnfs_generic_write_commit_done(task, data); in ff_layout_commit_done()
1771 static void ff_layout_commit_count_stats(struct rpc_task *task, void *data) in ff_layout_commit_count_stats() argument
1773 struct nfs_commit_data *cdata = data; in ff_layout_commit_count_stats()
1777 &NFS_CLIENT(cdata->inode)->cl_metrics[NFSPROC4_CLNT_COMMIT]); in ff_layout_commit_count_stats()
1780 static void ff_layout_commit_release(void *data) in ff_layout_commit_release() argument
1782 struct nfs_commit_data *cdata = data; in ff_layout_commit_release()
1784 ff_layout_commit_record_layoutstats_done(&cdata->task, cdata); in ff_layout_commit_release()
1785 pnfs_generic_commit_release(data); in ff_layout_commit_release()
1833 struct pnfs_layout_segment *lseg = hdr->lseg; in ff_layout_read_pagelist()
1836 struct nfs4_ff_layout_mirror *mirror; in ff_layout_read_pagelist() local
1838 loff_t offset = hdr->args.offset; in ff_layout_read_pagelist()
1839 u32 idx = hdr->pgio_mirror_idx; in ff_layout_read_pagelist()
1843 dprintk("--> %s ino %lu pgbase %u req %zu@%llu\n", in ff_layout_read_pagelist()
1844 __func__, hdr->inode->i_ino, in ff_layout_read_pagelist()
1845 hdr->args.pgbase, (size_t)hdr->args.count, offset); in ff_layout_read_pagelist()
1847 mirror = FF_LAYOUT_COMP(lseg, idx); in ff_layout_read_pagelist()
1848 ds = nfs4_ff_layout_prepare_ds(lseg, mirror, false); in ff_layout_read_pagelist()
1852 ds_clnt = nfs4_ff_find_or_create_ds_client(mirror, ds->ds_clp, in ff_layout_read_pagelist()
1853 hdr->inode); in ff_layout_read_pagelist()
1857 ds_cred = ff_layout_get_ds_cred(mirror, &lseg->pls_range, hdr->cred); in ff_layout_read_pagelist()
1861 vers = nfs4_ff_layout_ds_version(mirror); in ff_layout_read_pagelist()
1864 ds->ds_remotestr, refcount_read(&ds->ds_clp->cl_count), vers); in ff_layout_read_pagelist()
1866 hdr->pgio_done_cb = ff_layout_read_done_cb; in ff_layout_read_pagelist()
1867 refcount_inc(&ds->ds_clp->cl_count); in ff_layout_read_pagelist()
1868 hdr->ds_clp = ds->ds_clp; in ff_layout_read_pagelist()
1869 fh = nfs4_ff_layout_select_ds_fh(mirror); in ff_layout_read_pagelist()
1871 hdr->args.fh = fh; in ff_layout_read_pagelist()
1873 nfs4_ff_layout_select_ds_stateid(mirror, &hdr->args.stateid); in ff_layout_read_pagelist()
1877 * then we may need to handle dense-like offsets. in ff_layout_read_pagelist()
1879 hdr->args.offset = offset; in ff_layout_read_pagelist()
1880 hdr->mds_offset = offset; in ff_layout_read_pagelist()
1883 nfs_initiate_pgio(ds_clnt, hdr, ds_cred, ds->ds_clp->rpc_ops, in ff_layout_read_pagelist()
1893 trace_pnfs_mds_fallback_read_pagelist(hdr->inode, in ff_layout_read_pagelist()
1894 hdr->args.offset, hdr->args.count, in ff_layout_read_pagelist()
1895 IOMODE_READ, NFS_I(hdr->inode)->layout, lseg); in ff_layout_read_pagelist()
1903 struct pnfs_layout_segment *lseg = hdr->lseg; in ff_layout_write_pagelist()
1906 struct nfs4_ff_layout_mirror *mirror; in ff_layout_write_pagelist() local
1908 loff_t offset = hdr->args.offset; in ff_layout_write_pagelist()
1911 u32 idx = hdr->pgio_mirror_idx; in ff_layout_write_pagelist()
1913 mirror = FF_LAYOUT_COMP(lseg, idx); in ff_layout_write_pagelist()
1914 ds = nfs4_ff_layout_prepare_ds(lseg, mirror, true); in ff_layout_write_pagelist()
1918 ds_clnt = nfs4_ff_find_or_create_ds_client(mirror, ds->ds_clp, in ff_layout_write_pagelist()
1919 hdr->inode); in ff_layout_write_pagelist()
1923 ds_cred = ff_layout_get_ds_cred(mirror, &lseg->pls_range, hdr->cred); in ff_layout_write_pagelist()
1927 vers = nfs4_ff_layout_ds_version(mirror); in ff_layout_write_pagelist()
1930 __func__, hdr->inode->i_ino, sync, (size_t) hdr->args.count, in ff_layout_write_pagelist()
1931 offset, ds->ds_remotestr, refcount_read(&ds->ds_clp->cl_count), in ff_layout_write_pagelist()
1934 hdr->pgio_done_cb = ff_layout_write_done_cb; in ff_layout_write_pagelist()
1935 refcount_inc(&ds->ds_clp->cl_count); in ff_layout_write_pagelist()
1936 hdr->ds_clp = ds->ds_clp; in ff_layout_write_pagelist()
1937 hdr->ds_commit_idx = idx; in ff_layout_write_pagelist()
1938 fh = nfs4_ff_layout_select_ds_fh(mirror); in ff_layout_write_pagelist()
1940 hdr->args.fh = fh; in ff_layout_write_pagelist()
1942 nfs4_ff_layout_select_ds_stateid(mirror, &hdr->args.stateid); in ff_layout_write_pagelist()
1946 * then we may need to handle dense-like offsets. in ff_layout_write_pagelist()
1948 hdr->args.offset = offset; in ff_layout_write_pagelist()
1951 nfs_initiate_pgio(ds_clnt, hdr, ds_cred, ds->ds_clp->rpc_ops, in ff_layout_write_pagelist()
1961 trace_pnfs_mds_fallback_write_pagelist(hdr->inode, in ff_layout_write_pagelist()
1962 hdr->args.offset, hdr->args.count, in ff_layout_write_pagelist()
1963 IOMODE_RW, NFS_I(hdr->inode)->layout, lseg); in ff_layout_write_pagelist()
1980 return &flseg->mirror_array[i]->fh_versions[0]; in select_ds_fh_from_commit()
1983 static int ff_layout_initiate_commit(struct nfs_commit_data *data, int how) in ff_layout_initiate_commit() argument
1985 struct pnfs_layout_segment *lseg = data->lseg; in ff_layout_initiate_commit()
1988 struct nfs4_ff_layout_mirror *mirror; in ff_layout_initiate_commit() local
1995 test_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags))) in ff_layout_initiate_commit()
1998 idx = calc_ds_index_from_commit(lseg, data->ds_commit_index); in ff_layout_initiate_commit()
1999 mirror = FF_LAYOUT_COMP(lseg, idx); in ff_layout_initiate_commit()
2000 ds = nfs4_ff_layout_prepare_ds(lseg, mirror, true); in ff_layout_initiate_commit()
2004 ds_clnt = nfs4_ff_find_or_create_ds_client(mirror, ds->ds_clp, in ff_layout_initiate_commit()
2005 data->inode); in ff_layout_initiate_commit()
2009 ds_cred = ff_layout_get_ds_cred(mirror, &lseg->pls_range, data->cred); in ff_layout_initiate_commit()
2013 vers = nfs4_ff_layout_ds_version(mirror); in ff_layout_initiate_commit()
2016 data->inode->i_ino, how, refcount_read(&ds->ds_clp->cl_count), in ff_layout_initiate_commit()
2018 data->commit_done_cb = ff_layout_commit_done_cb; in ff_layout_initiate_commit()
2019 data->cred = ds_cred; in ff_layout_initiate_commit()
2020 refcount_inc(&ds->ds_clp->cl_count); in ff_layout_initiate_commit()
2021 data->ds_clp = ds->ds_clp; in ff_layout_initiate_commit()
2022 fh = select_ds_fh_from_commit(lseg, data->ds_commit_index); in ff_layout_initiate_commit()
2024 data->args.fh = fh; in ff_layout_initiate_commit()
2026 ret = nfs_initiate_commit(ds_clnt, data, ds->ds_clp->rpc_ops, in ff_layout_initiate_commit()
2033 pnfs_generic_prepare_to_resend_writes(data); in ff_layout_initiate_commit()
2034 pnfs_generic_commit_release(data); in ff_layout_initiate_commit()
2035 return -EAGAIN; in ff_layout_initiate_commit()
2050 return hdr->lseg == lseg; in ff_layout_match_rw()
2057 return cdata->lseg == lseg; in ff_layout_match_commit()
2060 static bool ff_layout_match_io(const struct rpc_task *task, const void *data) in ff_layout_match_io() argument
2062 const struct rpc_call_ops *ops = task->tk_ops; in ff_layout_match_io()
2068 return ff_layout_match_rw(task, task->tk_calldata, data); in ff_layout_match_io()
2071 return ff_layout_match_commit(task, task->tk_calldata, data); in ff_layout_match_io()
2078 struct nfs4_ff_layout_mirror *mirror; in ff_layout_cancel_io() local
2085 for (idx = 0; idx < flseg->mirror_array_cnt; idx++) { in ff_layout_cancel_io()
2086 mirror = flseg->mirror_array[idx]; in ff_layout_cancel_io()
2087 mirror_ds = mirror->mirror_ds; in ff_layout_cancel_io()
2090 ds = mirror->mirror_ds->ds; in ff_layout_cancel_io()
2093 ds_clp = ds->ds_clp; in ff_layout_cancel_io()
2096 clnt = ds_clp->cl_rpcclient; in ff_layout_cancel_io()
2099 if (!rpc_cancel_tasks(clnt, -EAGAIN, ff_layout_match_io, lseg)) in ff_layout_cancel_io()
2108 struct pnfs_layout_hdr *layout = NFS_I(inode)->layout; in ff_layout_get_ds_info()
2113 return &FF_LAYOUT_FROM_HDR(layout)->commit_info; in ff_layout_get_ds_info()
2121 struct inode *inode = lseg->pls_layout->plh_inode; in ff_layout_setup_ds_info()
2124 new = pnfs_alloc_commit_array(flseg->mirror_array_cnt, in ff_layout_setup_ds_info()
2127 spin_lock(&inode->i_lock); in ff_layout_setup_ds_info()
2129 spin_unlock(&inode->i_lock); in ff_layout_setup_ds_info()
2139 spin_lock(&inode->i_lock); in ff_layout_release_ds_info()
2141 spin_unlock(&inode->i_lock); in ff_layout_release_ds_info()
2159 return -E2BIG; in ff_layout_encode_ioerr()
2161 *start = cpu_to_be32(ff_args->num_errors); in ff_layout_encode_ioerr()
2163 return ff_layout_encode_ds_ioerr(xdr, &ff_args->errors); in ff_layout_encode_ioerr()
2180 p = xdr_encode_hyper(p, devinfo->offset); in ff_layout_encode_ff_iostat_head()
2181 p = xdr_encode_hyper(p, devinfo->length); in ff_layout_encode_ff_iostat_head()
2182 encode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); in ff_layout_encode_ff_iostat_head()
2184 p = xdr_encode_hyper(p, devinfo->read_count); in ff_layout_encode_ff_iostat_head()
2185 p = xdr_encode_hyper(p, devinfo->read_bytes); in ff_layout_encode_ff_iostat_head()
2186 p = xdr_encode_hyper(p, devinfo->write_count); in ff_layout_encode_ff_iostat_head()
2187 p = xdr_encode_hyper(p, devinfo->write_bytes); in ff_layout_encode_ff_iostat_head()
2188 encode_opaque_fixed(xdr, devinfo->dev_id.data, NFS4_DEVICEID4_SIZE); in ff_layout_encode_ff_iostat_head()
2198 devinfo->ld_private.data); in ff_layout_encode_ff_iostat()
2210 *p = cpu_to_be32(ff_args->num_dev); in ff_layout_encode_iostats_array()
2211 for (i = 0; i < ff_args->num_dev; i++) in ff_layout_encode_iostats_array()
2213 &args->layout->plh_stateid, in ff_layout_encode_iostats_array()
2214 &ff_args->devinfo[i]); in ff_layout_encode_iostats_array()
2226 if (!devinfo[i].ld_private.ops->free) in ff_layout_free_iostats_array()
2228 devinfo[i].ld_private.ops->free(&devinfo[i].ld_private); in ff_layout_free_iostats_array()
2241 return &dsaddr->id_node; in ff_layout_alloc_deviceid_node()
2250 struct nfs4_flexfile_layoutreturn_args *ff_args = ff_opaque->data; in ff_layout_encode_layoutreturn()
2254 .iov_base = page_address(ff_args->pages[0]), in ff_layout_encode_layoutreturn()
2271 xdr_write_pages(xdr, ff_args->pages, 0, tmp_buf.len); in ff_layout_encode_layoutreturn()
2281 if (!args->data) in ff_layout_free_layoutreturn()
2283 ff_args = args->data; in ff_layout_free_layoutreturn()
2284 args->data = NULL; in ff_layout_free_layoutreturn()
2286 ff_layout_free_ds_ioerr(&ff_args->errors); in ff_layout_free_layoutreturn()
2287 ff_layout_free_iostats_array(ff_args->devinfo, ff_args->num_dev); in ff_layout_free_layoutreturn()
2289 put_page(ff_args->pages[0]); in ff_layout_free_layoutreturn()
2302 struct nfs4_flexfile_layout *ff_layout = FF_LAYOUT_FROM_HDR(args->layout); in ff_layout_prepare_layoutreturn()
2307 ff_args->pages[0] = alloc_page(nfs_io_gfp_mask()); in ff_layout_prepare_layoutreturn()
2308 if (!ff_args->pages[0]) in ff_layout_prepare_layoutreturn()
2311 INIT_LIST_HEAD(&ff_args->errors); in ff_layout_prepare_layoutreturn()
2312 ff_args->num_errors = ff_layout_fetch_ds_ioerr(args->layout, in ff_layout_prepare_layoutreturn()
2313 &args->range, &ff_args->errors, in ff_layout_prepare_layoutreturn()
2316 spin_lock(&args->inode->i_lock); in ff_layout_prepare_layoutreturn()
2317 ff_args->num_dev = ff_layout_mirror_prepare_stats( in ff_layout_prepare_layoutreturn()
2318 &ff_layout->generic_hdr, &ff_args->devinfo[0], in ff_layout_prepare_layoutreturn()
2319 ARRAY_SIZE(ff_args->devinfo), NFS4_FF_OP_LAYOUTRETURN); in ff_layout_prepare_layoutreturn()
2320 spin_unlock(&args->inode->i_lock); in ff_layout_prepare_layoutreturn()
2322 args->ld_private->ops = &layoutreturn_ops; in ff_layout_prepare_layoutreturn()
2323 args->ld_private->data = ff_args; in ff_layout_prepare_layoutreturn()
2328 return -ENOMEM; in ff_layout_prepare_layoutreturn()
2335 struct pnfs_layout_hdr *lo = lseg->pls_layout; in ff_layout_send_layouterror()
2339 if (!nfs_server_capable(lo->plh_inode, NFS_CAP_LAYOUTERROR)) in ff_layout_send_layouterror()
2341 ff_layout_fetch_ds_ioerr(lo, &lseg->pls_range, &head, -1); in ff_layout_send_layouterror()
2352 errors[n].offset = pos->offset; in ff_layout_send_layouterror()
2353 errors[n].length = pos->length; in ff_layout_send_layouterror()
2354 nfs4_stateid_copy(&errors[n].stateid, &pos->stateid); in ff_layout_send_layouterror()
2355 errors[n].errors[0].dev_id = pos->deviceid; in ff_layout_send_layouterror()
2356 errors[n].errors[0].status = pos->status; in ff_layout_send_layouterror()
2357 errors[n].errors[0].opnum = pos->opnum; in ff_layout_send_layouterror()
2359 if (!list_is_last(&pos->list, &head) && in ff_layout_send_layouterror()
2382 return snprintf(buf, buflen, "%pI4", &sin->sin_addr); in ff_layout_ntop4()
2390 const struct in6_addr *addr = &sin6->sin6_addr; in ff_layout_ntop6_noscopeid()
2416 &addr->s6_addr32[3]); in ff_layout_ntop6_noscopeid()
2428 struct sockaddr *sap = (struct sockaddr *)&da->da_addr; in ff_layout_encode_netaddr()
2435 switch (sap->sa_family) { in ff_layout_encode_netaddr()
2439 port = ntohs(((struct sockaddr_in *)sap)->sin_port); in ff_layout_encode_netaddr()
2444 port = ntohs(((struct sockaddr_in6 *)sap)->sin6_port); in ff_layout_encode_netaddr()
2454 netid_len = strlen(da->da_netid); in ff_layout_encode_netaddr()
2456 xdr_encode_opaque(p, da->da_netid, netid_len); in ff_layout_encode_netaddr()
2482 p = xdr_encode_hyper(p, stat->ops_requested); in ff_layout_encode_io_latency()
2483 p = xdr_encode_hyper(p, stat->bytes_requested); in ff_layout_encode_io_latency()
2484 p = xdr_encode_hyper(p, stat->ops_completed); in ff_layout_encode_io_latency()
2485 p = xdr_encode_hyper(p, stat->bytes_completed); in ff_layout_encode_io_latency()
2486 p = xdr_encode_hyper(p, stat->bytes_not_delivered); in ff_layout_encode_io_latency()
2487 ff_layout_encode_nfstime(xdr, stat->total_busy_time); in ff_layout_encode_io_latency()
2488 ff_layout_encode_nfstime(xdr, stat->aggregate_completion_time); in ff_layout_encode_io_latency()
2494 struct nfs4_ff_layout_mirror *mirror) in ff_layout_encode_ff_layoutupdate() argument
2497 struct nfs4_pnfs_ds *ds = mirror->mirror_ds->ds; in ff_layout_encode_ff_layoutupdate()
2498 struct nfs_fh *fh = &mirror->fh_versions[0]; in ff_layout_encode_ff_layoutupdate()
2501 da = list_first_entry(&ds->ds_addrs, struct nfs4_pnfs_ds_addr, da_node); in ff_layout_encode_ff_layoutupdate()
2503 __func__, ds->ds_remotestr, da->da_remotestr); in ff_layout_encode_ff_layoutupdate()
2507 p = xdr_reserve_space(xdr, 4 + fh->size); in ff_layout_encode_ff_layoutupdate()
2508 xdr_encode_opaque(p, fh->data, fh->size); in ff_layout_encode_ff_layoutupdate()
2510 spin_lock(&mirror->lock); in ff_layout_encode_ff_layoutupdate()
2511 ff_layout_encode_io_latency(xdr, &mirror->read_stat.io_stat); in ff_layout_encode_ff_layoutupdate()
2513 ff_layout_encode_io_latency(xdr, &mirror->write_stat.io_stat); in ff_layout_encode_ff_layoutupdate()
2514 spin_unlock(&mirror->lock); in ff_layout_encode_ff_layoutupdate()
2516 ff_layout_encode_nfstime(xdr, ktime_sub(ktime_get(), mirror->start_time)); in ff_layout_encode_ff_layoutupdate()
2532 ff_layout_encode_ff_layoutupdate(xdr, devinfo, opaque->data); in ff_layout_encode_layoutstats()
2534 *start = cpu_to_be32((xdr->p - start - 1) * 4); in ff_layout_encode_layoutstats()
2540 struct nfs4_ff_layout_mirror *mirror = opaque->data; in ff_layout_free_layoutstats() local
2542 ff_layout_put_mirror(mirror); in ff_layout_free_layoutstats()
2556 struct nfs4_ff_layout_mirror *mirror; in ff_layout_mirror_prepare_stats() local
2560 list_for_each_entry(mirror, &ff_layout->mirrors, mirrors) { in ff_layout_mirror_prepare_stats()
2563 if (IS_ERR_OR_NULL(mirror->mirror_ds)) in ff_layout_mirror_prepare_stats()
2566 &mirror->flags) && in ff_layout_mirror_prepare_stats()
2569 /* mirror refcount put in cleanup_layoutstats */ in ff_layout_mirror_prepare_stats()
2570 if (!refcount_inc_not_zero(&mirror->ref)) in ff_layout_mirror_prepare_stats()
2572 dev = &mirror->mirror_ds->id_node; in ff_layout_mirror_prepare_stats()
2573 memcpy(&devinfo->dev_id, &dev->deviceid, NFS4_DEVICEID4_SIZE); in ff_layout_mirror_prepare_stats()
2574 devinfo->offset = 0; in ff_layout_mirror_prepare_stats()
2575 devinfo->length = NFS4_MAX_UINT64; in ff_layout_mirror_prepare_stats()
2576 spin_lock(&mirror->lock); in ff_layout_mirror_prepare_stats()
2577 devinfo->read_count = mirror->read_stat.io_stat.ops_completed; in ff_layout_mirror_prepare_stats()
2578 devinfo->read_bytes = mirror->read_stat.io_stat.bytes_completed; in ff_layout_mirror_prepare_stats()
2579 devinfo->write_count = mirror->write_stat.io_stat.ops_completed; in ff_layout_mirror_prepare_stats()
2580 devinfo->write_bytes = mirror->write_stat.io_stat.bytes_completed; in ff_layout_mirror_prepare_stats()
2581 spin_unlock(&mirror->lock); in ff_layout_mirror_prepare_stats()
2582 devinfo->layout_type = LAYOUT_FLEX_FILES; in ff_layout_mirror_prepare_stats()
2583 devinfo->ld_private.ops = &layoutstat_ops; in ff_layout_mirror_prepare_stats()
2584 devinfo->ld_private.data = mirror; in ff_layout_mirror_prepare_stats()
2599 args->devinfo = kmalloc_array(dev_count, sizeof(*args->devinfo), in ff_layout_prepare_layoutstats()
2601 if (!args->devinfo) in ff_layout_prepare_layoutstats()
2602 return -ENOMEM; in ff_layout_prepare_layoutstats()
2604 spin_lock(&args->inode->i_lock); in ff_layout_prepare_layoutstats()
2605 lo = NFS_I(args->inode)->layout; in ff_layout_prepare_layoutstats()
2608 args->num_dev = ff_layout_mirror_prepare_stats( in ff_layout_prepare_layoutstats()
2609 &ff_layout->generic_hdr, &args->devinfo[0], dev_count, in ff_layout_prepare_layoutstats()
2612 args->num_dev = 0; in ff_layout_prepare_layoutstats()
2613 spin_unlock(&args->inode->i_lock); in ff_layout_prepare_layoutstats()
2614 if (!args->num_dev) { in ff_layout_prepare_layoutstats()
2615 kfree(args->devinfo); in ff_layout_prepare_layoutstats()
2616 args->devinfo = NULL; in ff_layout_prepare_layoutstats()
2617 return -ENOENT; in ff_layout_prepare_layoutstats()
2628 server->caps |= NFS_CAP_LAYOUTSTATS; in ff_layout_set_layoutdriver()
2682 MODULE_ALIAS("nfs-layouttype4-4");