Lines Matching +full:dout +full:- +full:default +full:- +full:2
1 // SPDX-License-Identifier: GPL-2.0
21 * specific inode (e.g., a getattr due to fstat(2)), or as a path
41 struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dentry->d_sb); in ceph_d_init()
45 return -ENOMEM; /* oh well */ in ceph_d_init()
47 di->dentry = dentry; in ceph_d_init()
48 di->lease_session = NULL; in ceph_d_init()
49 di->time = jiffies; in ceph_d_init()
50 dentry->d_fsdata = di; in ceph_d_init()
51 INIT_LIST_HEAD(&di->lease_list); in ceph_d_init()
53 atomic64_inc(&mdsc->metric.total_dentries); in ceph_d_init()
60 * - hash order:
63 * - frag+name order;
67 #define OFFSET_MASK ((1 << OFFSET_BITS) - 1)
102 return (int)(fpos_off(l) - fpos_off(r)); in fpos_cmp()
116 return -ENOMEM; in note_last_dentry()
117 kfree(dfi->last_name); in note_last_dentry()
118 dfi->last_name = buf; in note_last_dentry()
119 memcpy(dfi->last_name, name, len); in note_last_dentry()
120 dfi->last_name[len] = 0; in note_last_dentry()
121 dfi->next_offset = next_offset; in note_last_dentry()
122 dout("note_last_dentry '%s'\n", dfi->last_name); in note_last_dentry()
133 unsigned idx_mask = (PAGE_SIZE / sizeof(struct dentry *)) - 1; in __dcache_find_get_entry()
140 if (!cache_ctl->page || ptr_pgoff != page_index(cache_ctl->page)) { in __dcache_find_get_entry()
142 cache_ctl->page = find_lock_page(&dir->i_data, ptr_pgoff); in __dcache_find_get_entry()
143 if (!cache_ctl->page) { in __dcache_find_get_entry()
144 dout(" page %lu not found\n", ptr_pgoff); in __dcache_find_get_entry()
145 return ERR_PTR(-EAGAIN); in __dcache_find_get_entry()
149 unlock_page(cache_ctl->page); in __dcache_find_get_entry()
150 cache_ctl->dentries = kmap(cache_ctl->page); in __dcache_find_get_entry()
153 cache_ctl->index = idx & idx_mask; in __dcache_find_get_entry()
156 spin_lock(&parent->d_lock); in __dcache_find_get_entry()
160 dentry = cache_ctl->dentries[cache_ctl->index]; in __dcache_find_get_entry()
163 spin_unlock(&parent->d_lock); in __dcache_find_get_entry()
164 if (dentry && !lockref_get_not_dead(&dentry->d_lockref)) in __dcache_find_get_entry()
167 return dentry ? : ERR_PTR(-EAGAIN); in __dcache_find_get_entry()
184 struct ceph_dir_file_info *dfi = file->private_data; in __dcache_readdir()
185 struct dentry *parent = file->f_path.dentry; in __dcache_readdir()
193 dout("__dcache_readdir %p v%u at %llx\n", dir, (unsigned)shared_gen, ctx->pos); in __dcache_readdir()
196 if (ctx->pos > 2) { in __dcache_readdir()
212 spin_lock(&dentry->d_lock); in __dcache_readdir()
213 if (fpos_cmp(di->offset, ctx->pos) < 0) { in __dcache_readdir()
215 count -= step + 1; in __dcache_readdir()
219 spin_unlock(&dentry->d_lock); in __dcache_readdir()
223 dout("__dcache_readdir %p cache idx %llu\n", dir, idx); in __dcache_readdir()
231 dfi->file_info.flags |= CEPH_F_ATEND; in __dcache_readdir()
240 spin_lock(&dentry->d_lock); in __dcache_readdir()
244 di->lease_shared_gen != shared_gen) { in __dcache_readdir()
245 spin_unlock(&dentry->d_lock); in __dcache_readdir()
247 err = -EAGAIN; in __dcache_readdir()
250 if (fpos_cmp(ctx->pos, di->offset) <= 0) { in __dcache_readdir()
254 spin_unlock(&dentry->d_lock); in __dcache_readdir()
257 dout(" %llx dentry %p %pd %p\n", di->offset, in __dcache_readdir()
259 ctx->pos = di->offset; in __dcache_readdir()
260 if (!dir_emit(ctx, dentry->d_name.name, in __dcache_readdir()
261 dentry->d_name.len, ceph_present_inode(d_inode(dentry)), in __dcache_readdir()
262 d_inode(dentry)->i_mode >> 12)) { in __dcache_readdir()
267 ctx->pos++; in __dcache_readdir()
281 ret = note_last_dentry(dfi, last->d_name.name, last->d_name.len, in __dcache_readdir()
282 fpos_off(di->offset) + 1); in __dcache_readdir()
287 if (dfi->readdir_cache_idx >= 0) { in __dcache_readdir()
288 dfi->readdir_cache_idx = -1; in __dcache_readdir()
289 dfi->dir_release_count = 0; in __dcache_readdir()
297 if (!dfi->last_readdir) in need_send_readdir()
300 return !ceph_frag_contains_value(dfi->frag, fpos_hash(pos)); in need_send_readdir()
302 return dfi->frag != fpos_frag(pos); in need_send_readdir()
307 struct ceph_dir_file_info *dfi = file->private_data; in ceph_readdir()
311 struct ceph_mds_client *mdsc = fsc->mdsc; in ceph_readdir()
314 unsigned frag = -1; in ceph_readdir()
317 dout("readdir %p file %p pos %llx\n", inode, file, ctx->pos); in ceph_readdir()
318 if (dfi->file_info.flags & CEPH_F_ATEND) in ceph_readdir()
322 if (ctx->pos == 0) { in ceph_readdir()
323 dout("readdir off 0 -> '.'\n"); in ceph_readdir()
325 inode->i_mode >> 12)) in ceph_readdir()
327 ctx->pos = 1; in ceph_readdir()
329 if (ctx->pos == 1) { in ceph_readdir()
331 struct dentry *dentry = file->f_path.dentry; in ceph_readdir()
333 spin_lock(&dentry->d_lock); in ceph_readdir()
334 ino = ceph_present_inode(dentry->d_parent->d_inode); in ceph_readdir()
335 spin_unlock(&dentry->d_lock); in ceph_readdir()
337 dout("readdir off 1 -> '..'\n"); in ceph_readdir()
338 if (!dir_emit(ctx, "..", 2, ino, inode->i_mode >> 12)) in ceph_readdir()
340 ctx->pos = 2; in ceph_readdir()
343 spin_lock(&ci->i_ceph_lock); in ceph_readdir()
353 int shared_gen = atomic_read(&ci->i_shared_gen); in ceph_readdir()
355 spin_unlock(&ci->i_ceph_lock); in ceph_readdir()
357 if (err != -EAGAIN) in ceph_readdir()
360 spin_unlock(&ci->i_ceph_lock); in ceph_readdir()
366 if (need_send_readdir(dfi, ctx->pos)) { in ceph_readdir()
372 if (dfi->last_readdir) { in ceph_readdir()
373 ceph_mdsc_put_request(dfi->last_readdir); in ceph_readdir()
374 dfi->last_readdir = NULL; in ceph_readdir()
377 if (is_hash_order(ctx->pos)) { in ceph_readdir()
380 if (frag == (unsigned)-1) in ceph_readdir()
381 frag = ceph_choose_frag(ci, fpos_hash(ctx->pos), in ceph_readdir()
384 frag = fpos_frag(ctx->pos); in ceph_readdir()
387 dout("readdir fetching %llx.%llx frag %x offset '%s'\n", in ceph_readdir()
388 ceph_vinop(inode), frag, dfi->last_name); in ceph_readdir()
397 /* hints to request -> mds selection code */ in ceph_readdir()
398 req->r_direct_mode = USE_AUTH_MDS; in ceph_readdir()
400 req->r_direct_hash = ceph_frag_value(frag); in ceph_readdir()
401 __set_bit(CEPH_MDS_R_DIRECT_IS_HASH, &req->r_req_flags); in ceph_readdir()
402 req->r_inode_drop = CEPH_CAP_FILE_EXCL; in ceph_readdir()
404 if (dfi->last_name) { in ceph_readdir()
405 req->r_path2 = kstrdup(dfi->last_name, GFP_KERNEL); in ceph_readdir()
406 if (!req->r_path2) { in ceph_readdir()
408 return -ENOMEM; in ceph_readdir()
410 } else if (is_hash_order(ctx->pos)) { in ceph_readdir()
411 req->r_args.readdir.offset_hash = in ceph_readdir()
412 cpu_to_le32(fpos_hash(ctx->pos)); in ceph_readdir()
415 req->r_dir_release_cnt = dfi->dir_release_count; in ceph_readdir()
416 req->r_dir_ordered_cnt = dfi->dir_ordered_count; in ceph_readdir()
417 req->r_readdir_cache_idx = dfi->readdir_cache_idx; in ceph_readdir()
418 req->r_readdir_offset = dfi->next_offset; in ceph_readdir()
419 req->r_args.readdir.frag = cpu_to_le32(frag); in ceph_readdir()
420 req->r_args.readdir.flags = in ceph_readdir()
423 req->r_inode = inode; in ceph_readdir()
425 req->r_dentry = dget(file->f_path.dentry); in ceph_readdir()
431 dout("readdir got and parsed readdir result=%d on " in ceph_readdir()
434 (int)req->r_reply_info.dir_end, in ceph_readdir()
435 (int)req->r_reply_info.dir_complete, in ceph_readdir()
436 (int)req->r_reply_info.hash_order); in ceph_readdir()
438 rinfo = &req->r_reply_info; in ceph_readdir()
439 if (le32_to_cpu(rinfo->dir_dir->frag) != frag) { in ceph_readdir()
440 frag = le32_to_cpu(rinfo->dir_dir->frag); in ceph_readdir()
441 if (!rinfo->hash_order) { in ceph_readdir()
442 dfi->next_offset = req->r_readdir_offset; in ceph_readdir()
443 /* adjust ctx->pos to beginning of frag */ in ceph_readdir()
444 ctx->pos = ceph_make_fpos(frag, in ceph_readdir()
445 dfi->next_offset, in ceph_readdir()
450 dfi->frag = frag; in ceph_readdir()
451 dfi->last_readdir = req; in ceph_readdir()
453 if (test_bit(CEPH_MDS_R_DID_PREPOPULATE, &req->r_req_flags)) { in ceph_readdir()
454 dfi->readdir_cache_idx = req->r_readdir_cache_idx; in ceph_readdir()
455 if (dfi->readdir_cache_idx < 0) { in ceph_readdir()
457 dfi->dir_ordered_count = 0; in ceph_readdir()
459 dfi->next_offset == 2) { in ceph_readdir()
462 dfi->dir_release_count = req->r_dir_release_cnt; in ceph_readdir()
463 dfi->dir_ordered_count = req->r_dir_ordered_cnt; in ceph_readdir()
466 dout("readdir !did_prepopulate\n"); in ceph_readdir()
468 dfi->readdir_cache_idx = -1; in ceph_readdir()
470 dfi->dir_release_count = 0; in ceph_readdir()
474 if (rinfo->dir_nr > 0) { in ceph_readdir()
476 rinfo->dir_entries + (rinfo->dir_nr-1); in ceph_readdir()
477 unsigned next_offset = req->r_reply_info.dir_end ? in ceph_readdir()
478 2 : (fpos_off(rde->offset) + 1); in ceph_readdir()
479 err = note_last_dentry(dfi, rde->name, rde->name_len, in ceph_readdir()
482 ceph_mdsc_put_request(dfi->last_readdir); in ceph_readdir()
483 dfi->last_readdir = NULL; in ceph_readdir()
486 } else if (req->r_reply_info.dir_end) { in ceph_readdir()
487 dfi->next_offset = 2; in ceph_readdir()
492 rinfo = &dfi->last_readdir->r_reply_info; in ceph_readdir()
493 dout("readdir frag %x num %d pos %llx chunk first %llx\n", in ceph_readdir()
494 dfi->frag, rinfo->dir_nr, ctx->pos, in ceph_readdir()
495 rinfo->dir_nr ? rinfo->dir_entries[0].offset : 0LL); in ceph_readdir()
499 if (rinfo->dir_nr > 0) { in ceph_readdir()
500 int step, nr = rinfo->dir_nr; in ceph_readdir()
503 if (rinfo->dir_entries[i + step].offset < ctx->pos) { in ceph_readdir()
505 nr -= step + 1; in ceph_readdir()
511 for (; i < rinfo->dir_nr; i++) { in ceph_readdir()
512 struct ceph_mds_reply_dir_entry *rde = rinfo->dir_entries + i; in ceph_readdir()
514 BUG_ON(rde->offset < ctx->pos); in ceph_readdir()
516 ctx->pos = rde->offset; in ceph_readdir()
517 dout("readdir (%d/%d) -> %llx '%.*s' %p\n", in ceph_readdir()
518 i, rinfo->dir_nr, ctx->pos, in ceph_readdir()
519 rde->name_len, rde->name, &rde->inode.in); in ceph_readdir()
521 BUG_ON(!rde->inode.in); in ceph_readdir()
523 if (!dir_emit(ctx, rde->name, rde->name_len, in ceph_readdir()
524 ceph_present_ino(inode->i_sb, le64_to_cpu(rde->inode.in->ino)), in ceph_readdir()
525 le32_to_cpu(rde->inode.in->mode) >> 12)) { in ceph_readdir()
527 * NOTE: Here no need to put the 'dfi->last_readdir', in ceph_readdir()
532 dout("filldir stopping us...\n"); in ceph_readdir()
535 ctx->pos++; in ceph_readdir()
538 ceph_mdsc_put_request(dfi->last_readdir); in ceph_readdir()
539 dfi->last_readdir = NULL; in ceph_readdir()
541 if (dfi->next_offset > 2) { in ceph_readdir()
542 frag = dfi->frag; in ceph_readdir()
547 if (!ceph_frag_is_rightmost(dfi->frag)) { in ceph_readdir()
548 frag = ceph_frag_next(dfi->frag); in ceph_readdir()
549 if (is_hash_order(ctx->pos)) { in ceph_readdir()
551 dfi->next_offset, true); in ceph_readdir()
552 if (new_pos > ctx->pos) in ceph_readdir()
553 ctx->pos = new_pos; in ceph_readdir()
556 ctx->pos = ceph_make_fpos(frag, dfi->next_offset, in ceph_readdir()
558 kfree(dfi->last_name); in ceph_readdir()
559 dfi->last_name = NULL; in ceph_readdir()
561 dout("readdir next frag is %x\n", frag); in ceph_readdir()
564 dfi->file_info.flags |= CEPH_F_ATEND; in ceph_readdir()
571 if (atomic64_read(&ci->i_release_count) == in ceph_readdir()
572 dfi->dir_release_count) { in ceph_readdir()
573 spin_lock(&ci->i_ceph_lock); in ceph_readdir()
574 if (dfi->dir_ordered_count == in ceph_readdir()
575 atomic64_read(&ci->i_ordered_count)) { in ceph_readdir()
576 dout(" marking %p complete and ordered\n", inode); in ceph_readdir()
579 BUG_ON(dfi->readdir_cache_idx < 0); in ceph_readdir()
580 i_size_write(inode, dfi->readdir_cache_idx * in ceph_readdir()
583 dout(" marking %p complete\n", inode); in ceph_readdir()
585 __ceph_dir_set_complete(ci, dfi->dir_release_count, in ceph_readdir()
586 dfi->dir_ordered_count); in ceph_readdir()
587 spin_unlock(&ci->i_ceph_lock); in ceph_readdir()
590 dout("readdir %p file %p done.\n", inode, file); in ceph_readdir()
596 if (dfi->last_readdir) { in reset_readdir()
597 ceph_mdsc_put_request(dfi->last_readdir); in reset_readdir()
598 dfi->last_readdir = NULL; in reset_readdir()
600 kfree(dfi->last_name); in reset_readdir()
601 dfi->last_name = NULL; in reset_readdir()
602 dfi->dir_release_count = 0; in reset_readdir()
603 dfi->readdir_cache_idx = -1; in reset_readdir()
604 dfi->next_offset = 2; /* compensate for . and .. */ in reset_readdir()
605 dfi->file_info.flags &= ~CEPH_F_ATEND; in reset_readdir()
621 } else if (dfi->frag != fpos_frag(new_pos)) { in need_reset_readdir()
624 rinfo = dfi->last_readdir ? &dfi->last_readdir->r_reply_info : NULL; in need_reset_readdir()
625 if (!rinfo || !rinfo->dir_nr) in need_reset_readdir()
627 chunk_offset = rinfo->dir_entries[0].offset; in need_reset_readdir()
634 struct ceph_dir_file_info *dfi = file->private_data; in ceph_dir_llseek()
635 struct inode *inode = file->f_mapping->host; in ceph_dir_llseek()
639 retval = -EINVAL; in ceph_dir_llseek()
642 offset += file->f_pos; in ceph_dir_llseek()
646 retval = -EOPNOTSUPP; in ceph_dir_llseek()
647 default: in ceph_dir_llseek()
653 dout("dir_llseek dropping %p content\n", file); in ceph_dir_llseek()
655 } else if (is_hash_order(offset) && offset > file->f_pos) { in ceph_dir_llseek()
658 dfi->dir_release_count = 0; in ceph_dir_llseek()
659 dfi->readdir_cache_idx = -1; in ceph_dir_llseek()
662 if (offset != file->f_pos) { in ceph_dir_llseek()
663 file->f_pos = offset; in ceph_dir_llseek()
664 file->f_version = 0; in ceph_dir_llseek()
665 dfi->file_info.flags &= ~CEPH_F_ATEND; in ceph_dir_llseek()
680 struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb); in ceph_handle_snapdir()
681 struct inode *parent = d_inode(dentry->d_parent); /* we hold i_mutex */ in ceph_handle_snapdir()
684 if (err == -ENOENT && in ceph_handle_snapdir()
686 strcmp(dentry->d_name.name, in ceph_handle_snapdir()
687 fsc->mount_options->snapdir_name) == 0) { in ceph_handle_snapdir()
689 dout("ENOENT on snapdir %p '%pd', linking to snapdir %p\n", in ceph_handle_snapdir()
701 * Mainly, make sure we return the final req->r_dentry (if it already
702 * existed) in place of the original VFS-provided dentry when they
705 * Gracefully handle the case where the MDS replies with -ENOENT and
712 if (err == -ENOENT) { in ceph_finish_lookup()
715 if (!req->r_reply_info.head->is_dentry) { in ceph_finish_lookup()
716 dout("ENOENT and no trace, dentry %p inode %p\n", in ceph_finish_lookup()
720 err = -ENOENT; in ceph_finish_lookup()
728 else if (dentry != req->r_dentry) in ceph_finish_lookup()
729 dentry = dget(req->r_dentry); /* we got spliced */ in ceph_finish_lookup()
738 strncmp(dentry->d_name.name, ".ceph", 5) == 0; in is_root_ceph_dentry()
748 struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb); in ceph_lookup()
749 struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb); in ceph_lookup()
755 dout("lookup %p dentry %p '%pd'\n", in ceph_lookup()
758 if (dentry->d_name.len > NAME_MAX) in ceph_lookup()
759 return ERR_PTR(-ENAMETOOLONG); in ceph_lookup()
766 spin_lock(&ci->i_ceph_lock); in ceph_lookup()
767 dout(" dir %p flags are 0x%lx\n", dir, ci->i_ceph_flags); in ceph_lookup()
768 if (strncmp(dentry->d_name.name, in ceph_lookup()
769 fsc->mount_options->snapdir_name, in ceph_lookup()
770 dentry->d_name.len) && in ceph_lookup()
776 spin_unlock(&ci->i_ceph_lock); in ceph_lookup()
777 dout(" dir %p complete, -ENOENT\n", dir); in ceph_lookup()
779 di->lease_shared_gen = atomic_read(&ci->i_shared_gen); in ceph_lookup()
782 spin_unlock(&ci->i_ceph_lock); in ceph_lookup()
790 req->r_dentry = dget(dentry); in ceph_lookup()
791 req->r_num_caps = 2; in ceph_lookup()
796 req->r_args.getattr.mask = cpu_to_le32(mask); in ceph_lookup()
798 req->r_parent = dir; in ceph_lookup()
799 set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags); in ceph_lookup()
804 dout("lookup result=%p\n", dentry); in ceph_lookup()
830 return -ESTALE; in ceph_handle_notrace_create()
838 struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb); in ceph_mknod()
844 return -EROFS; in ceph_mknod()
847 err = -EDQUOT; in ceph_mknod()
858 dout("mknod in dir %p dentry %p mode 0%ho rdev %d\n", in ceph_mknod()
865 req->r_dentry = dget(dentry); in ceph_mknod()
866 req->r_num_caps = 2; in ceph_mknod()
867 req->r_parent = dir; in ceph_mknod()
868 set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags); in ceph_mknod()
869 req->r_args.mknod.mode = cpu_to_le32(mode); in ceph_mknod()
870 req->r_args.mknod.rdev = cpu_to_le32(rdev); in ceph_mknod()
871 req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_AUTH_EXCL; in ceph_mknod()
872 req->r_dentry_unless = CEPH_CAP_FILE_EXCL; in ceph_mknod()
874 req->r_pagelist = as_ctx.pagelist; in ceph_mknod()
878 if (!err && !req->r_reply_info.head->is_dentry) in ceph_mknod()
899 struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb); in ceph_symlink()
905 return -EROFS; in ceph_symlink()
908 err = -EDQUOT; in ceph_symlink()
916 dout("symlink in dir %p dentry %p to '%s'\n", dir, dentry, dest); in ceph_symlink()
922 req->r_path2 = kstrdup(dest, GFP_KERNEL); in ceph_symlink()
923 if (!req->r_path2) { in ceph_symlink()
924 err = -ENOMEM; in ceph_symlink()
928 req->r_parent = dir; in ceph_symlink()
929 set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags); in ceph_symlink()
930 req->r_dentry = dget(dentry); in ceph_symlink()
931 req->r_num_caps = 2; in ceph_symlink()
932 req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_AUTH_EXCL; in ceph_symlink()
933 req->r_dentry_unless = CEPH_CAP_FILE_EXCL; in ceph_symlink()
935 req->r_pagelist = as_ctx.pagelist; in ceph_symlink()
939 if (!err && !req->r_reply_info.head->is_dentry) in ceph_symlink()
951 struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb); in ceph_mkdir()
954 int err = -EROFS; in ceph_mkdir()
960 dout("mksnap dir %p snap '%pd' dn %p\n", dir, in ceph_mkdir()
963 dout("mkdir dir %p dn %p mode 0%ho\n", dir, dentry, mode); in ceph_mkdir()
971 err = -EDQUOT; in ceph_mkdir()
989 req->r_dentry = dget(dentry); in ceph_mkdir()
990 req->r_num_caps = 2; in ceph_mkdir()
991 req->r_parent = dir; in ceph_mkdir()
992 set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags); in ceph_mkdir()
993 req->r_args.mkdir.mode = cpu_to_le32(mode); in ceph_mkdir()
994 req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_AUTH_EXCL; in ceph_mkdir()
995 req->r_dentry_unless = CEPH_CAP_FILE_EXCL; in ceph_mkdir()
997 req->r_pagelist = as_ctx.pagelist; in ceph_mkdir()
1002 !req->r_reply_info.head->is_target && in ceph_mkdir()
1003 !req->r_reply_info.head->is_dentry) in ceph_mkdir()
1018 struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb); in ceph_link()
1023 return -EROFS; in ceph_link()
1025 dout("link in dir %p old_dentry %p dentry %p\n", dir, in ceph_link()
1032 req->r_dentry = dget(dentry); in ceph_link()
1033 req->r_num_caps = 2; in ceph_link()
1034 req->r_old_dentry = dget(old_dentry); in ceph_link()
1035 req->r_parent = dir; in ceph_link()
1036 set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags); in ceph_link()
1037 req->r_dentry_drop = CEPH_CAP_FILE_SHARED; in ceph_link()
1038 req->r_dentry_unless = CEPH_CAP_FILE_EXCL; in ceph_link()
1040 req->r_old_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; in ceph_link()
1044 } else if (!req->r_reply_info.head->is_dentry) { in ceph_link()
1055 int result = req->r_err ? req->r_err : in ceph_async_unlink_cb()
1056 le32_to_cpu(req->r_reply_info.head->result); in ceph_async_unlink_cb()
1058 if (result == -EJUKEBOX) in ceph_async_unlink_cb()
1065 char *path = ceph_mdsc_build_path(req->r_dentry, &pathlen, in ceph_async_unlink_cb()
1069 mapping_set_error(req->r_parent->i_mapping, result); in ceph_async_unlink_cb()
1070 ceph_dir_clear_complete(req->r_parent); in ceph_async_unlink_cb()
1072 /* drop the dentry -- we don't know its status */ in ceph_async_unlink_cb()
1073 if (!d_unhashed(req->r_dentry)) in ceph_async_unlink_cb()
1074 d_drop(req->r_dentry); in ceph_async_unlink_cb()
1077 mapping_set_error(req->r_old_inode->i_mapping, result); in ceph_async_unlink_cb()
1084 iput(req->r_old_inode); in ceph_async_unlink_cb()
1094 spin_lock(&ci->i_ceph_lock); in get_caps_for_async_unlink()
1099 spin_unlock(&ci->i_ceph_lock); in get_caps_for_async_unlink()
1105 spin_lock(&dentry->d_lock); in get_caps_for_async_unlink()
1108 * - We are holding Fx, which implies Fs caps. in get_caps_for_async_unlink()
1109 * - Only support async unlink for primary linkage in get_caps_for_async_unlink()
1111 if (atomic_read(&ci->i_shared_gen) != di->lease_shared_gen || in get_caps_for_async_unlink()
1112 !(di->flags & CEPH_DENTRY_PRIMARY_LINK)) in get_caps_for_async_unlink()
1114 spin_unlock(&dentry->d_lock); in get_caps_for_async_unlink()
1129 struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb); in ceph_unlink()
1130 struct ceph_mds_client *mdsc = fsc->mdsc; in ceph_unlink()
1134 int err = -EROFS; in ceph_unlink()
1139 dout("rmsnap dir %p '%pd' dn %p\n", dir, dentry, dentry); in ceph_unlink()
1142 dout("unlink/rmdir dir %p dn %p inode %p\n", in ceph_unlink()
1154 req->r_dentry = dget(dentry); in ceph_unlink()
1155 req->r_num_caps = 2; in ceph_unlink()
1156 req->r_parent = dir; in ceph_unlink()
1157 req->r_dentry_drop = CEPH_CAP_FILE_SHARED; in ceph_unlink()
1158 req->r_dentry_unless = CEPH_CAP_FILE_EXCL; in ceph_unlink()
1159 req->r_inode_drop = ceph_drop_caps_for_unlink(inode); in ceph_unlink()
1162 (req->r_dir_caps = get_caps_for_async_unlink(dir, dentry))) { in ceph_unlink()
1163 dout("async unlink on %llu/%.*s caps=%s", ceph_ino(dir), in ceph_unlink()
1164 dentry->d_name.len, dentry->d_name.name, in ceph_unlink()
1165 ceph_cap_string(req->r_dir_caps)); in ceph_unlink()
1166 set_bit(CEPH_MDS_R_ASYNC, &req->r_req_flags); in ceph_unlink()
1167 req->r_callback = ceph_async_unlink_cb; in ceph_unlink()
1168 req->r_old_inode = d_inode(dentry); in ceph_unlink()
1169 ihold(req->r_old_inode); in ceph_unlink()
1178 } else if (err == -EJUKEBOX) { in ceph_unlink()
1184 set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags); in ceph_unlink()
1186 if (!err && !req->r_reply_info.head->is_dentry) in ceph_unlink()
1199 struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(old_dir->i_sb); in ceph_rename()
1205 return -EINVAL; in ceph_rename()
1208 return -EXDEV; in ceph_rename()
1213 return -EROFS; in ceph_rename()
1221 dout("rename dir %p dentry %p to dir %p dentry %p\n", in ceph_rename()
1227 req->r_dentry = dget(new_dentry); in ceph_rename()
1228 req->r_num_caps = 2; in ceph_rename()
1229 req->r_old_dentry = dget(old_dentry); in ceph_rename()
1230 req->r_old_dentry_dir = old_dir; in ceph_rename()
1231 req->r_parent = new_dir; in ceph_rename()
1232 set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags); in ceph_rename()
1233 req->r_old_dentry_drop = CEPH_CAP_FILE_SHARED; in ceph_rename()
1234 req->r_old_dentry_unless = CEPH_CAP_FILE_EXCL; in ceph_rename()
1235 req->r_dentry_drop = CEPH_CAP_FILE_SHARED; in ceph_rename()
1236 req->r_dentry_unless = CEPH_CAP_FILE_EXCL; in ceph_rename()
1238 req->r_old_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; in ceph_rename()
1240 req->r_inode_drop = in ceph_rename()
1244 if (!err && !req->r_reply_info.head->is_dentry) { in ceph_rename()
1257 * Move dentry to tail of mdsc->dentry_leases list when lease is updated.
1261 * Called under dentry->d_lock.
1265 struct dentry *dn = di->dentry; in __ceph_dentry_lease_touch()
1268 dout("dentry_lease_touch %p %p '%pd'\n", di, dn, dn); in __ceph_dentry_lease_touch()
1270 di->flags |= CEPH_DENTRY_LEASE_LIST; in __ceph_dentry_lease_touch()
1271 if (di->flags & CEPH_DENTRY_SHRINK_LIST) { in __ceph_dentry_lease_touch()
1272 di->flags |= CEPH_DENTRY_REFERENCED; in __ceph_dentry_lease_touch()
1276 mdsc = ceph_sb_to_client(dn->d_sb)->mdsc; in __ceph_dentry_lease_touch()
1277 spin_lock(&mdsc->dentry_list_lock); in __ceph_dentry_lease_touch()
1278 list_move_tail(&di->lease_list, &mdsc->dentry_leases); in __ceph_dentry_lease_touch()
1279 spin_unlock(&mdsc->dentry_list_lock); in __ceph_dentry_lease_touch()
1285 di->flags &= ~(CEPH_DENTRY_LEASE_LIST | CEPH_DENTRY_REFERENCED); in __dentry_dir_lease_touch()
1286 di->lease_gen = 0; in __dentry_dir_lease_touch()
1287 di->time = jiffies; in __dentry_dir_lease_touch()
1288 list_move_tail(&di->lease_list, &mdsc->dentry_dir_leases); in __dentry_dir_lease_touch()
1292 * When dir lease is used, add dentry to tail of mdsc->dentry_dir_leases
1295 * Called under dentry->d_lock.
1299 struct dentry *dn = di->dentry; in __ceph_dentry_dir_lease_touch()
1302 dout("dentry_dir_lease_touch %p %p '%pd' (offset 0x%llx)\n", in __ceph_dentry_dir_lease_touch()
1303 di, dn, dn, di->offset); in __ceph_dentry_dir_lease_touch()
1305 if (!list_empty(&di->lease_list)) { in __ceph_dentry_dir_lease_touch()
1306 if (di->flags & CEPH_DENTRY_LEASE_LIST) { in __ceph_dentry_dir_lease_touch()
1312 di->flags |= CEPH_DENTRY_REFERENCED; in __ceph_dentry_dir_lease_touch()
1317 if (di->flags & CEPH_DENTRY_SHRINK_LIST) { in __ceph_dentry_dir_lease_touch()
1318 di->flags |= CEPH_DENTRY_REFERENCED; in __ceph_dentry_dir_lease_touch()
1319 di->flags &= ~CEPH_DENTRY_LEASE_LIST; in __ceph_dentry_dir_lease_touch()
1323 mdsc = ceph_sb_to_client(dn->d_sb)->mdsc; in __ceph_dentry_dir_lease_touch()
1324 spin_lock(&mdsc->dentry_list_lock); in __ceph_dentry_dir_lease_touch()
1326 spin_unlock(&mdsc->dentry_list_lock); in __ceph_dentry_dir_lease_touch()
1332 if (di->flags & CEPH_DENTRY_SHRINK_LIST) in __dentry_lease_unlist()
1334 if (list_empty(&di->lease_list)) in __dentry_lease_unlist()
1337 mdsc = ceph_sb_to_client(di->dentry->d_sb)->mdsc; in __dentry_lease_unlist()
1338 spin_lock(&mdsc->dentry_list_lock); in __dentry_lease_unlist()
1339 list_del_init(&di->lease_list); in __dentry_lease_unlist()
1340 spin_unlock(&mdsc->dentry_list_lock); in __dentry_lease_unlist()
1346 TOUCH = 2,
1369 list = lwc->dir_lease ? &mdsc->dentry_dir_leases : &mdsc->dentry_leases; in __dentry_leases_walk()
1370 spin_lock(&mdsc->dentry_list_lock); in __dentry_leases_walk()
1372 if (!lwc->nr_to_scan) in __dentry_leases_walk()
1374 --lwc->nr_to_scan; in __dentry_leases_walk()
1376 dentry = di->dentry; in __dentry_leases_walk()
1380 if (!spin_trylock(&dentry->d_lock)) in __dentry_leases_walk()
1383 if (__lockref_is_dead(&dentry->d_lockref)) { in __dentry_leases_walk()
1384 list_del_init(&di->lease_list); in __dentry_leases_walk()
1397 di->flags &= ~CEPH_DENTRY_REFERENCED; in __dentry_leases_walk()
1398 if (dentry->d_lockref.count > 0) { in __dentry_leases_walk()
1399 /* update_dentry_lease() will re-add in __dentry_leases_walk()
1403 list_del_init(&di->lease_list); in __dentry_leases_walk()
1405 di->flags |= CEPH_DENTRY_SHRINK_LIST; in __dentry_leases_walk()
1406 list_move_tail(&di->lease_list, &dispose); in __dentry_leases_walk()
1411 spin_unlock(&dentry->d_lock); in __dentry_leases_walk()
1415 spin_unlock(&mdsc->dentry_list_lock); in __dentry_leases_walk()
1420 dentry = di->dentry; in __dentry_leases_walk()
1421 spin_lock(&dentry->d_lock); in __dentry_leases_walk()
1423 list_del_init(&di->lease_list); in __dentry_leases_walk()
1424 di->flags &= ~CEPH_DENTRY_SHRINK_LIST; in __dentry_leases_walk()
1425 if (di->flags & CEPH_DENTRY_REFERENCED) { in __dentry_leases_walk()
1426 spin_lock(&mdsc->dentry_list_lock); in __dentry_leases_walk()
1427 if (di->flags & CEPH_DENTRY_LEASE_LIST) { in __dentry_leases_walk()
1428 list_add_tail(&di->lease_list, in __dentry_leases_walk()
1429 &mdsc->dentry_leases); in __dentry_leases_walk()
1433 spin_unlock(&mdsc->dentry_list_lock); in __dentry_leases_walk()
1438 spin_unlock(&dentry->d_lock); in __dentry_leases_walk()
1453 if (ret == -EBUSY) in __dentry_lease_check()
1466 if (ret == -EBUSY) in __dir_lease_check()
1469 if (time_before(jiffies, di->time + lwc->dir_lease_ttl)) in __dir_lease_check()
1474 if (!lwc->expire_dir_lease) in __dir_lease_check()
1476 if (dentry->d_lockref.count > 0 || in __dir_lease_check()
1477 (di->flags & CEPH_DENTRY_REFERENCED)) in __dir_lease_check()
1480 di->lease_shared_gen = 0; in __dir_lease_check()
1491 spin_lock(&mdsc->caps_list_lock); in ceph_trim_dentries()
1492 if (mdsc->caps_use_max > 0 && in ceph_trim_dentries()
1493 mdsc->caps_use_count > mdsc->caps_use_max) in ceph_trim_dentries()
1494 count = mdsc->caps_use_count - mdsc->caps_use_max; in ceph_trim_dentries()
1497 spin_unlock(&mdsc->caps_list_lock); in ceph_trim_dentries()
1500 lwc.nr_to_scan = CEPH_CAPS_PER_RELEASE * 2; in ceph_trim_dentries()
1503 return -EAGAIN; in ceph_trim_dentries()
1510 lwc.dir_lease_ttl = mdsc->fsc->mount_options->caps_wanted_delay_max * HZ; in ceph_trim_dentries()
1513 return -EAGAIN; in ceph_trim_dentries()
1524 spin_lock(&dentry->d_lock); in ceph_invalidate_dentry_lease()
1525 di->time = jiffies; in ceph_invalidate_dentry_lease()
1526 di->lease_shared_gen = 0; in ceph_invalidate_dentry_lease()
1527 di->flags &= ~CEPH_DENTRY_PRIMARY_LINK; in ceph_invalidate_dentry_lease()
1529 spin_unlock(&dentry->d_lock); in ceph_invalidate_dentry_lease()
1540 if (!di->lease_gen) in __dentry_lease_is_valid()
1543 session = di->lease_session; in __dentry_lease_is_valid()
1548 spin_lock(&session->s_gen_ttl_lock); in __dentry_lease_is_valid()
1549 gen = session->s_cap_gen; in __dentry_lease_is_valid()
1550 ttl = session->s_cap_ttl; in __dentry_lease_is_valid()
1551 spin_unlock(&session->s_gen_ttl_lock); in __dentry_lease_is_valid()
1553 if (di->lease_gen == gen && in __dentry_lease_is_valid()
1555 time_before(jiffies, di->time)) in __dentry_lease_is_valid()
1558 di->lease_gen = 0; in __dentry_lease_is_valid()
1569 spin_lock(&dentry->d_lock); in dentry_lease_is_valid()
1574 if (di->lease_renew_after && in dentry_lease_is_valid()
1575 time_after(jiffies, di->lease_renew_after)) { in dentry_lease_is_valid()
1579 * -ECHILD. in dentry_lease_is_valid()
1582 valid = -ECHILD; in dentry_lease_is_valid()
1584 session = ceph_get_mds_session(di->lease_session); in dentry_lease_is_valid()
1585 seq = di->lease_seq; in dentry_lease_is_valid()
1586 di->lease_renew_after = 0; in dentry_lease_is_valid()
1587 di->lease_renew_from = jiffies; in dentry_lease_is_valid()
1591 spin_unlock(&dentry->d_lock); in dentry_lease_is_valid()
1598 dout("dentry_lease_is_valid - dentry %p = %d\n", dentry, valid); in dentry_lease_is_valid()
1603 * Called under dentry->d_lock.
1612 if (!di->lease_shared_gen) in __dir_lease_try_check()
1617 dir = d_inode(dentry->d_parent); in __dir_lease_try_check()
1620 if (spin_trylock(&ci->i_ceph_lock)) { in __dir_lease_try_check()
1621 if (atomic_read(&ci->i_shared_gen) == di->lease_shared_gen && in __dir_lease_try_check()
1624 spin_unlock(&ci->i_ceph_lock); in __dir_lease_try_check()
1626 valid = -EBUSY; in __dir_lease_try_check()
1630 di->lease_shared_gen = 0; in __dir_lease_try_check()
1635 * Check if directory-wide content lease/cap is valid.
1644 spin_lock(&ci->i_ceph_lock); in dir_lease_is_valid()
1648 shared_gen = atomic_read(&ci->i_shared_gen); in dir_lease_is_valid()
1650 spin_unlock(&ci->i_ceph_lock); in dir_lease_is_valid()
1653 spin_lock(&dentry->d_lock); in dir_lease_is_valid()
1655 if (dir == d_inode(dentry->d_parent) && in dir_lease_is_valid()
1656 di && di->lease_shared_gen == shared_gen) in dir_lease_is_valid()
1660 spin_unlock(&dentry->d_lock); in dir_lease_is_valid()
1662 dout("dir_lease_is_valid dir %p v%u dentry %p = %d\n", in dir_lease_is_valid()
1663 dir, (unsigned)atomic_read(&ci->i_shared_gen), dentry, valid); in dir_lease_is_valid()
1678 parent = READ_ONCE(dentry->d_parent); in ceph_d_revalidate()
1681 return -ECHILD; in ceph_d_revalidate()
1689 dout("d_revalidate %p '%pd' inode %p offset 0x%llx\n", dentry, in ceph_d_revalidate()
1690 dentry, inode, ceph_dentry(dentry)->offset); in ceph_d_revalidate()
1692 mdsc = ceph_sb_to_client(dir->i_sb)->mdsc; in ceph_d_revalidate()
1696 dout("d_revalidate %p '%pd' inode %p is SNAPPED\n", dentry, in ceph_d_revalidate()
1703 if (valid == -ECHILD) in ceph_d_revalidate()
1719 return -ECHILD; in ceph_d_revalidate()
1721 percpu_counter_inc(&mdsc->metric.d_lease_mis); in ceph_d_revalidate()
1727 req->r_dentry = dget(dentry); in ceph_d_revalidate()
1728 req->r_num_caps = 2; in ceph_d_revalidate()
1729 req->r_parent = dir; in ceph_d_revalidate()
1734 req->r_args.getattr.mask = cpu_to_le32(mask); in ceph_d_revalidate()
1740 d_inode(dentry) == req->r_target_inode) in ceph_d_revalidate()
1743 case -ENOENT: in ceph_d_revalidate()
1747 default: in ceph_d_revalidate()
1751 dout("d_revalidate %p lookup result=%d\n", in ceph_d_revalidate()
1755 percpu_counter_inc(&mdsc->metric.d_lease_hit); in ceph_d_revalidate()
1758 dout("d_revalidate %p %s\n", dentry, valid ? "valid" : "invalid"); in ceph_d_revalidate()
1770 * Called under dentry->d_lock.
1798 struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb); in ceph_d_release()
1800 dout("d_release %p\n", dentry); in ceph_d_release()
1802 atomic64_dec(&fsc->mdsc->metric.total_dentries); in ceph_d_release()
1804 spin_lock(&dentry->d_lock); in ceph_d_release()
1806 dentry->d_fsdata = NULL; in ceph_d_release()
1807 spin_unlock(&dentry->d_lock); in ceph_d_release()
1809 ceph_put_mds_session(di->lease_session); in ceph_d_release()
1817 * Called under dentry->d_lock.
1824 dout("ceph_d_prune %pd %p\n", dentry, dentry); in ceph_d_prune()
1831 dir_ci = ceph_inode(d_inode(dentry->d_parent)); in ceph_d_prune()
1832 if (dir_ci->i_vino.snap == CEPH_SNAPDIR) in ceph_d_prune()
1849 if (di->offset > 0 && in ceph_d_prune()
1850 di->lease_shared_gen == atomic_read(&dir_ci->i_shared_gen)) in ceph_d_prune()
1856 * with '-o dirstat'.
1861 struct ceph_dir_file_info *dfi = file->private_data; in ceph_read_dir()
1867 if (!ceph_test_mount_opt(ceph_sb_to_client(inode->i_sb), DIRSTAT)) in ceph_read_dir()
1868 return -EISDIR; in ceph_read_dir()
1870 if (!dfi->dir_info) { in ceph_read_dir()
1871 dfi->dir_info = kmalloc(bufsize, GFP_KERNEL); in ceph_read_dir()
1872 if (!dfi->dir_info) in ceph_read_dir()
1873 return -ENOMEM; in ceph_read_dir()
1874 dfi->dir_info_len = in ceph_read_dir()
1875 snprintf(dfi->dir_info, bufsize, in ceph_read_dir()
1884 ci->i_files + ci->i_subdirs, in ceph_read_dir()
1885 ci->i_files, in ceph_read_dir()
1886 ci->i_subdirs, in ceph_read_dir()
1887 ci->i_rfiles + ci->i_rsubdirs, in ceph_read_dir()
1888 ci->i_rfiles, in ceph_read_dir()
1889 ci->i_rsubdirs, in ceph_read_dir()
1890 ci->i_rbytes, in ceph_read_dir()
1891 ci->i_rctime.tv_sec, in ceph_read_dir()
1892 ci->i_rctime.tv_nsec); in ceph_read_dir()
1895 if (*ppos >= dfi->dir_info_len) in ceph_read_dir()
1897 size = min_t(unsigned, size, dfi->dir_info_len-*ppos); in ceph_read_dir()
1898 left = copy_to_user(buf, dfi->dir_info + *ppos, size); in ceph_read_dir()
1900 return -EFAULT; in ceph_read_dir()
1901 *ppos += (size - left); in ceph_read_dir()
1902 return size - left; in ceph_read_dir()
1916 switch (dci->i_dir_layout.dl_dir_hash) { in ceph_dentry_hash()
1919 return dn->d_name.hash; in ceph_dentry_hash()
1921 default: in ceph_dentry_hash()
1922 spin_lock(&dn->d_lock); in ceph_dentry_hash()
1923 hash = ceph_str_hash(dci->i_dir_layout.dl_dir_hash, in ceph_dentry_hash()
1924 dn->d_name.name, dn->d_name.len); in ceph_dentry_hash()
1925 spin_unlock(&dn->d_lock); in ceph_dentry_hash()