CC: kbuild-...@lists.01.org CC: Omar Sandoval <osan...@osandov.com> CC: linux-ker...@vger.kernel.org TO: Omar Sandoval <osan...@fb.com> CC: Nikolay Borisov <nbori...@suse.com>
tree: https://github.com/osandov/linux.git btrfs-send-encoded head: ec062ce505d22f204218f91a940b55fb38d66b07 commit: 57cd63d9f970d529c3cc9b80612cffd71b3186b9 [15/17] btrfs: send: allocate send buffer with alloc_page() and vmap() for v2 :::::: branch date: 27 hours ago :::::: commit date: 27 hours ago config: nios2-randconfig-m031-20220124 (https://download.01.org/0day-ci/archive/20220127/202201270814.2gid9lnj-...@intel.com/config) compiler: nios2-linux-gcc (GCC) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> Reported-by: Dan Carpenter <dan.carpen...@oracle.com> New smatch warnings: fs/btrfs/send.c:7806 btrfs_ioctl_send() error: we previously assumed 'sctx->send_buf_pages' could be null (see line 7593) Old smatch warnings: arch/nios2/include/asm/thread_info.h:71 current_thread_info() error: uninitialized symbol 'sp'. vim +7806 fs/btrfs/send.c 62d54f3a7fa27e Filipe Manana 2019-04-22 7488 786e6838d278ed Sahil Kang 2022-01-15 7489 long btrfs_ioctl_send(struct inode *inode, struct btrfs_ioctl_send_args *arg) 31db9f7c23fbf7 Alexander Block 2012-07-25 7490 { 31db9f7c23fbf7 Alexander Block 2012-07-25 7491 int ret = 0; 786e6838d278ed Sahil Kang 2022-01-15 7492 struct btrfs_root *send_root = BTRFS_I(inode)->root; 0b246afa62b0cf Jeff Mahoney 2016-06-22 7493 struct btrfs_fs_info *fs_info = send_root->fs_info; 31db9f7c23fbf7 Alexander Block 2012-07-25 7494 struct btrfs_root *clone_root; 31db9f7c23fbf7 Alexander Block 2012-07-25 7495 struct send_ctx *sctx = NULL; 31db9f7c23fbf7 Alexander Block 2012-07-25 7496 u32 i; 57cd63d9f970d5 Omar Sandoval 2020-05-01 7497 u32 send_buf_num_pages = 0; 31db9f7c23fbf7 Alexander Block 2012-07-25 7498 u64 *clone_sources_tmp = NULL; 2c68653787f91c David Sterba 2013-12-16 7499 int clone_sources_to_rollback = 0; bae12df966f0e1 Denis Efremov 2020-09-21 7500 size_t alloc_size; 896c14f97f700a Wang Shilong 2014-01-07 7501 int sort_clone_roots = 0; 31db9f7c23fbf7 Alexander Block 2012-07-25 7502 31db9f7c23fbf7 Alexander Block 2012-07-25 7503 if (!capable(CAP_SYS_ADMIN)) 31db9f7c23fbf7 Alexander Block 2012-07-25 7504 return -EPERM; 31db9f7c23fbf7 Alexander Block 2012-07-25 7505 2c68653787f91c David Sterba 2013-12-16 7506 /* 2c68653787f91c David Sterba 2013-12-16 7507 * The subvolume must remain read-only during send, protect against 521e0546c970c3 David Sterba 2014-04-15 7508 * making it RW. This also protects against deletion. 2c68653787f91c David Sterba 2013-12-16 7509 */ 2c68653787f91c David Sterba 2013-12-16 7510 spin_lock(&send_root->root_item_lock); 62d54f3a7fa27e Filipe Manana 2019-04-22 7511 if (btrfs_root_readonly(send_root) && send_root->dedupe_in_progress) { 62d54f3a7fa27e Filipe Manana 2019-04-22 7512 dedupe_in_progress_warn(send_root); 62d54f3a7fa27e Filipe Manana 2019-04-22 7513 spin_unlock(&send_root->root_item_lock); 62d54f3a7fa27e Filipe Manana 2019-04-22 7514 return -EAGAIN; 62d54f3a7fa27e Filipe Manana 2019-04-22 7515 } 2c68653787f91c David Sterba 2013-12-16 7516 send_root->send_in_progress++; 2c68653787f91c David Sterba 2013-12-16 7517 spin_unlock(&send_root->root_item_lock); 2c68653787f91c David Sterba 2013-12-16 7518 2c68653787f91c David Sterba 2013-12-16 7519 /* 2c68653787f91c David Sterba 2013-12-16 7520 * Userspace tools do the checks and warn the user if it's 2c68653787f91c David Sterba 2013-12-16 7521 * not RO. 2c68653787f91c David Sterba 2013-12-16 7522 */ 2c68653787f91c David Sterba 2013-12-16 7523 if (!btrfs_root_readonly(send_root)) { 2c68653787f91c David Sterba 2013-12-16 7524 ret = -EPERM; 2c68653787f91c David Sterba 2013-12-16 7525 goto out; 2c68653787f91c David Sterba 2013-12-16 7526 } 2c68653787f91c David Sterba 2013-12-16 7527 457ae7268b29c3 Dan Carpenter 2017-03-17 7528 /* 457ae7268b29c3 Dan Carpenter 2017-03-17 7529 * Check that we don't overflow at later allocations, we request 457ae7268b29c3 Dan Carpenter 2017-03-17 7530 * clone_sources_count + 1 items, and compare to unsigned long inside 457ae7268b29c3 Dan Carpenter 2017-03-17 7531 * access_ok. 457ae7268b29c3 Dan Carpenter 2017-03-17 7532 */ f5ecec3ce21f70 Dan Carpenter 2016-04-13 7533 if (arg->clone_sources_count > 457ae7268b29c3 Dan Carpenter 2017-03-17 7534 ULONG_MAX / sizeof(struct clone_root) - 1) { f5ecec3ce21f70 Dan Carpenter 2016-04-13 7535 ret = -EINVAL; f5ecec3ce21f70 Dan Carpenter 2016-04-13 7536 goto out; f5ecec3ce21f70 Dan Carpenter 2016-04-13 7537 } f5ecec3ce21f70 Dan Carpenter 2016-04-13 7538 c2c71324ecb471 Stefan Behrens 2013-04-10 7539 if (arg->flags & ~BTRFS_SEND_FLAG_MASK) { cb95e7bf7ba481 Mark Fasheh 2013-02-04 7540 ret = -EINVAL; cb95e7bf7ba481 Mark Fasheh 2013-02-04 7541 goto out; cb95e7bf7ba481 Mark Fasheh 2013-02-04 7542 } cb95e7bf7ba481 Mark Fasheh 2013-02-04 7543 e780b0d1c1523e David Sterba 2016-01-18 7544 sctx = kzalloc(sizeof(struct send_ctx), GFP_KERNEL); 31db9f7c23fbf7 Alexander Block 2012-07-25 7545 if (!sctx) { 31db9f7c23fbf7 Alexander Block 2012-07-25 7546 ret = -ENOMEM; 31db9f7c23fbf7 Alexander Block 2012-07-25 7547 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7548 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7549 31db9f7c23fbf7 Alexander Block 2012-07-25 7550 INIT_LIST_HEAD(&sctx->new_refs); 31db9f7c23fbf7 Alexander Block 2012-07-25 7551 INIT_LIST_HEAD(&sctx->deleted_refs); e780b0d1c1523e David Sterba 2016-01-18 7552 INIT_RADIX_TREE(&sctx->name_cache, GFP_KERNEL); 31db9f7c23fbf7 Alexander Block 2012-07-25 7553 INIT_LIST_HEAD(&sctx->name_cache_list); 31db9f7c23fbf7 Alexander Block 2012-07-25 7554 cb95e7bf7ba481 Mark Fasheh 2013-02-04 7555 sctx->flags = arg->flags; cb95e7bf7ba481 Mark Fasheh 2013-02-04 7556 e77fbf990316d4 David Sterba 2021-10-22 7557 if (arg->flags & BTRFS_SEND_FLAG_VERSION) { e77fbf990316d4 David Sterba 2021-10-22 7558 if (arg->version > BTRFS_SEND_STREAM_VERSION) { e77fbf990316d4 David Sterba 2021-10-22 7559 ret = -EPROTO; e77fbf990316d4 David Sterba 2021-10-22 7560 goto out; e77fbf990316d4 David Sterba 2021-10-22 7561 } e77fbf990316d4 David Sterba 2021-10-22 7562 /* Zero means "use the highest version" */ e77fbf990316d4 David Sterba 2021-10-22 7563 sctx->proto = arg->version ?: BTRFS_SEND_STREAM_VERSION; e77fbf990316d4 David Sterba 2021-10-22 7564 } else { e77fbf990316d4 David Sterba 2021-10-22 7565 sctx->proto = 1; e77fbf990316d4 David Sterba 2021-10-22 7566 } e77fbf990316d4 David Sterba 2021-10-22 7567 31db9f7c23fbf7 Alexander Block 2012-07-25 7568 sctx->send_filp = fget(arg->send_fd); ecc7ada77b5cd1 Tsutomu Itoh 2013-04-19 7569 if (!sctx->send_filp) { ecc7ada77b5cd1 Tsutomu Itoh 2013-04-19 7570 ret = -EBADF; 31db9f7c23fbf7 Alexander Block 2012-07-25 7571 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7572 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7573 31db9f7c23fbf7 Alexander Block 2012-07-25 7574 sctx->send_root = send_root; 521e0546c970c3 David Sterba 2014-04-15 7575 /* 521e0546c970c3 David Sterba 2014-04-15 7576 * Unlikely but possible, if the subvolume is marked for deletion but 521e0546c970c3 David Sterba 2014-04-15 7577 * is slow to remove the directory entry, send can still be started 521e0546c970c3 David Sterba 2014-04-15 7578 */ 521e0546c970c3 David Sterba 2014-04-15 7579 if (btrfs_root_dead(sctx->send_root)) { 521e0546c970c3 David Sterba 2014-04-15 7580 ret = -EPERM; 521e0546c970c3 David Sterba 2014-04-15 7581 goto out; 521e0546c970c3 David Sterba 2014-04-15 7582 } 521e0546c970c3 David Sterba 2014-04-15 7583 31db9f7c23fbf7 Alexander Block 2012-07-25 7584 sctx->clone_roots_cnt = arg->clone_sources_count; 31db9f7c23fbf7 Alexander Block 2012-07-25 7585 1d067d274b5d5c Omar Sandoval 2020-05-13 7586 if (sctx->proto >= 2) { 1d067d274b5d5c Omar Sandoval 2020-05-13 7587 sctx->send_max_size = ALIGN(SZ_16K + BTRFS_MAX_COMPRESSED, 1d067d274b5d5c Omar Sandoval 2020-05-13 7588 PAGE_SIZE); 57cd63d9f970d5 Omar Sandoval 2020-05-01 7589 send_buf_num_pages = sctx->send_max_size >> PAGE_SHIFT; 57cd63d9f970d5 Omar Sandoval 2020-05-01 7590 sctx->send_buf_pages = kcalloc(send_buf_num_pages, 57cd63d9f970d5 Omar Sandoval 2020-05-01 7591 sizeof(*sctx->send_buf_pages), 57cd63d9f970d5 Omar Sandoval 2020-05-01 7592 GFP_KERNEL); 57cd63d9f970d5 Omar Sandoval 2020-05-01 7593 if (!sctx->send_buf_pages) { 57cd63d9f970d5 Omar Sandoval 2020-05-01 7594 send_buf_num_pages = 0; 57cd63d9f970d5 Omar Sandoval 2020-05-01 7595 ret = -ENOMEM; 57cd63d9f970d5 Omar Sandoval 2020-05-01 7596 goto out; 57cd63d9f970d5 Omar Sandoval 2020-05-01 7597 } 57cd63d9f970d5 Omar Sandoval 2020-05-01 7598 for (i = 0; i < send_buf_num_pages; i++) { 57cd63d9f970d5 Omar Sandoval 2020-05-01 7599 sctx->send_buf_pages[i] = alloc_page(GFP_KERNEL); 57cd63d9f970d5 Omar Sandoval 2020-05-01 7600 if (!sctx->send_buf_pages[i]) { 57cd63d9f970d5 Omar Sandoval 2020-05-01 7601 ret = -ENOMEM; 57cd63d9f970d5 Omar Sandoval 2020-05-01 7602 goto out; 57cd63d9f970d5 Omar Sandoval 2020-05-01 7603 } 57cd63d9f970d5 Omar Sandoval 2020-05-01 7604 } 57cd63d9f970d5 Omar Sandoval 2020-05-01 7605 sctx->send_buf = vmap(sctx->send_buf_pages, send_buf_num_pages, 57cd63d9f970d5 Omar Sandoval 2020-05-01 7606 VM_MAP, PAGE_KERNEL); 1d067d274b5d5c Omar Sandoval 2020-05-13 7607 } else { ddb13e7a6baea8 Omar Sandoval 2020-05-12 7608 sctx->send_max_size = BTRFS_SEND_BUF_SIZE_V1; 752ade68cbd81d Michal Hocko 2017-05-08 7609 sctx->send_buf = kvmalloc(sctx->send_max_size, GFP_KERNEL); 57cd63d9f970d5 Omar Sandoval 2020-05-01 7610 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7611 if (!sctx->send_buf) { 31db9f7c23fbf7 Alexander Block 2012-07-25 7612 ret = -ENOMEM; 31db9f7c23fbf7 Alexander Block 2012-07-25 7613 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7614 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7615 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7616 sctx->pending_dir_moves = RB_ROOT; 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7617 sctx->waiting_dir_moves = RB_ROOT; 9dc442143b9874 Filipe Manana 2014-02-19 7618 sctx->orphan_dirs = RB_ROOT; 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7619 bae12df966f0e1 Denis Efremov 2020-09-21 7620 sctx->clone_roots = kvcalloc(sizeof(*sctx->clone_roots), bae12df966f0e1 Denis Efremov 2020-09-21 7621 arg->clone_sources_count + 1, bae12df966f0e1 Denis Efremov 2020-09-21 7622 GFP_KERNEL); 31db9f7c23fbf7 Alexander Block 2012-07-25 7623 if (!sctx->clone_roots) { 31db9f7c23fbf7 Alexander Block 2012-07-25 7624 ret = -ENOMEM; 31db9f7c23fbf7 Alexander Block 2012-07-25 7625 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7626 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7627 bae12df966f0e1 Denis Efremov 2020-09-21 7628 alloc_size = array_size(sizeof(*arg->clone_sources), bae12df966f0e1 Denis Efremov 2020-09-21 7629 arg->clone_sources_count); e55d1153dbf484 David Sterba 2016-04-11 7630 31db9f7c23fbf7 Alexander Block 2012-07-25 7631 if (arg->clone_sources_count) { 752ade68cbd81d Michal Hocko 2017-05-08 7632 clone_sources_tmp = kvmalloc(alloc_size, GFP_KERNEL); 31db9f7c23fbf7 Alexander Block 2012-07-25 7633 if (!clone_sources_tmp) { 31db9f7c23fbf7 Alexander Block 2012-07-25 7634 ret = -ENOMEM; 31db9f7c23fbf7 Alexander Block 2012-07-25 7635 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7636 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7637 31db9f7c23fbf7 Alexander Block 2012-07-25 7638 ret = copy_from_user(clone_sources_tmp, arg->clone_sources, e55d1153dbf484 David Sterba 2016-04-11 7639 alloc_size); 31db9f7c23fbf7 Alexander Block 2012-07-25 7640 if (ret) { 31db9f7c23fbf7 Alexander Block 2012-07-25 7641 ret = -EFAULT; 31db9f7c23fbf7 Alexander Block 2012-07-25 7642 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7643 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7644 31db9f7c23fbf7 Alexander Block 2012-07-25 7645 for (i = 0; i < arg->clone_sources_count; i++) { 56e9357a1e8167 David Sterba 2020-05-15 7646 clone_root = btrfs_get_fs_root(fs_info, 56e9357a1e8167 David Sterba 2020-05-15 7647 clone_sources_tmp[i], true); 31db9f7c23fbf7 Alexander Block 2012-07-25 7648 if (IS_ERR(clone_root)) { 31db9f7c23fbf7 Alexander Block 2012-07-25 7649 ret = PTR_ERR(clone_root); 31db9f7c23fbf7 Alexander Block 2012-07-25 7650 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7651 } 2c68653787f91c David Sterba 2013-12-16 7652 spin_lock(&clone_root->root_item_lock); 5cc2b17e80cf57 Filipe Manana 2015-03-02 7653 if (!btrfs_root_readonly(clone_root) || 5cc2b17e80cf57 Filipe Manana 2015-03-02 7654 btrfs_root_dead(clone_root)) { 2c68653787f91c David Sterba 2013-12-16 7655 spin_unlock(&clone_root->root_item_lock); 0024652895e347 Josef Bacik 2020-01-24 7656 btrfs_put_root(clone_root); 2c68653787f91c David Sterba 2013-12-16 7657 ret = -EPERM; 2c68653787f91c David Sterba 2013-12-16 7658 goto out; 2c68653787f91c David Sterba 2013-12-16 7659 } 62d54f3a7fa27e Filipe Manana 2019-04-22 7660 if (clone_root->dedupe_in_progress) { 62d54f3a7fa27e Filipe Manana 2019-04-22 7661 dedupe_in_progress_warn(clone_root); 62d54f3a7fa27e Filipe Manana 2019-04-22 7662 spin_unlock(&clone_root->root_item_lock); 0024652895e347 Josef Bacik 2020-01-24 7663 btrfs_put_root(clone_root); 62d54f3a7fa27e Filipe Manana 2019-04-22 7664 ret = -EAGAIN; 62d54f3a7fa27e Filipe Manana 2019-04-22 7665 goto out; 62d54f3a7fa27e Filipe Manana 2019-04-22 7666 } 2f1f465ae6da24 Filipe Manana 2015-03-02 7667 clone_root->send_in_progress++; 2c68653787f91c David Sterba 2013-12-16 7668 spin_unlock(&clone_root->root_item_lock); 18f687d5384493 Wang Shilong 2014-01-07 7669 31db9f7c23fbf7 Alexander Block 2012-07-25 7670 sctx->clone_roots[i].root = clone_root; 2f1f465ae6da24 Filipe Manana 2015-03-02 7671 clone_sources_to_rollback = i + 1; 31db9f7c23fbf7 Alexander Block 2012-07-25 7672 } 2f91306a378099 David Sterba 2016-04-11 7673 kvfree(clone_sources_tmp); 31db9f7c23fbf7 Alexander Block 2012-07-25 7674 clone_sources_tmp = NULL; 31db9f7c23fbf7 Alexander Block 2012-07-25 7675 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7676 31db9f7c23fbf7 Alexander Block 2012-07-25 7677 if (arg->parent_root) { 56e9357a1e8167 David Sterba 2020-05-15 7678 sctx->parent_root = btrfs_get_fs_root(fs_info, arg->parent_root, 56e9357a1e8167 David Sterba 2020-05-15 7679 true); b1b195969fe6d9 Stefan Behrens 2013-05-13 7680 if (IS_ERR(sctx->parent_root)) { b1b195969fe6d9 Stefan Behrens 2013-05-13 7681 ret = PTR_ERR(sctx->parent_root); 31db9f7c23fbf7 Alexander Block 2012-07-25 7682 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7683 } 18f687d5384493 Wang Shilong 2014-01-07 7684 2c68653787f91c David Sterba 2013-12-16 7685 spin_lock(&sctx->parent_root->root_item_lock); 2c68653787f91c David Sterba 2013-12-16 7686 sctx->parent_root->send_in_progress++; 521e0546c970c3 David Sterba 2014-04-15 7687 if (!btrfs_root_readonly(sctx->parent_root) || 521e0546c970c3 David Sterba 2014-04-15 7688 btrfs_root_dead(sctx->parent_root)) { 2c68653787f91c David Sterba 2013-12-16 7689 spin_unlock(&sctx->parent_root->root_item_lock); 2c68653787f91c David Sterba 2013-12-16 7690 ret = -EPERM; 2c68653787f91c David Sterba 2013-12-16 7691 goto out; 2c68653787f91c David Sterba 2013-12-16 7692 } 62d54f3a7fa27e Filipe Manana 2019-04-22 7693 if (sctx->parent_root->dedupe_in_progress) { 62d54f3a7fa27e Filipe Manana 2019-04-22 7694 dedupe_in_progress_warn(sctx->parent_root); 62d54f3a7fa27e Filipe Manana 2019-04-22 7695 spin_unlock(&sctx->parent_root->root_item_lock); 62d54f3a7fa27e Filipe Manana 2019-04-22 7696 ret = -EAGAIN; 62d54f3a7fa27e Filipe Manana 2019-04-22 7697 goto out; 62d54f3a7fa27e Filipe Manana 2019-04-22 7698 } 2c68653787f91c David Sterba 2013-12-16 7699 spin_unlock(&sctx->parent_root->root_item_lock); 31db9f7c23fbf7 Alexander Block 2012-07-25 7700 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7701 31db9f7c23fbf7 Alexander Block 2012-07-25 7702 /* 31db9f7c23fbf7 Alexander Block 2012-07-25 7703 * Clones from send_root are allowed, but only if the clone source 31db9f7c23fbf7 Alexander Block 2012-07-25 7704 * is behind the current send position. This is checked while searching 31db9f7c23fbf7 Alexander Block 2012-07-25 7705 * for possible clone sources. 31db9f7c23fbf7 Alexander Block 2012-07-25 7706 */ 6f9a3da5da9e7e Josef Bacik 2020-01-24 7707 sctx->clone_roots[sctx->clone_roots_cnt++].root = 0024652895e347 Josef Bacik 2020-01-24 7708 btrfs_grab_root(sctx->send_root); 31db9f7c23fbf7 Alexander Block 2012-07-25 7709 31db9f7c23fbf7 Alexander Block 2012-07-25 7710 /* We do a bsearch later */ 31db9f7c23fbf7 Alexander Block 2012-07-25 7711 sort(sctx->clone_roots, sctx->clone_roots_cnt, 31db9f7c23fbf7 Alexander Block 2012-07-25 7712 sizeof(*sctx->clone_roots), __clone_root_cmp_sort, 31db9f7c23fbf7 Alexander Block 2012-07-25 7713 NULL); 896c14f97f700a Wang Shilong 2014-01-07 7714 sort_clone_roots = 1; 31db9f7c23fbf7 Alexander Block 2012-07-25 7715 9f89d5de8631c7 Filipe Manana 2019-04-15 7716 ret = flush_delalloc_roots(sctx); 9f89d5de8631c7 Filipe Manana 2019-04-15 7717 if (ret) 9f89d5de8631c7 Filipe Manana 2019-04-15 7718 goto out; 9f89d5de8631c7 Filipe Manana 2019-04-15 7719 e5fa8f865b3324 Filipe Manana 2014-10-21 7720 ret = ensure_commit_roots_uptodate(sctx); e5fa8f865b3324 Filipe Manana 2014-10-21 7721 if (ret) e5fa8f865b3324 Filipe Manana 2014-10-21 7722 goto out; e5fa8f865b3324 Filipe Manana 2014-10-21 7723 31db9f7c23fbf7 Alexander Block 2012-07-25 7724 ret = send_subvol(sctx); 31db9f7c23fbf7 Alexander Block 2012-07-25 7725 if (ret < 0) 31db9f7c23fbf7 Alexander Block 2012-07-25 7726 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7727 c2c71324ecb471 Stefan Behrens 2013-04-10 7728 if (!(sctx->flags & BTRFS_SEND_FLAG_OMIT_END_CMD)) { 31db9f7c23fbf7 Alexander Block 2012-07-25 7729 ret = begin_cmd(sctx, BTRFS_SEND_C_END); 31db9f7c23fbf7 Alexander Block 2012-07-25 7730 if (ret < 0) 31db9f7c23fbf7 Alexander Block 2012-07-25 7731 goto out; 31db9f7c23fbf7 Alexander Block 2012-07-25 7732 ret = send_cmd(sctx); 31db9f7c23fbf7 Alexander Block 2012-07-25 7733 if (ret < 0) 31db9f7c23fbf7 Alexander Block 2012-07-25 7734 goto out; c2c71324ecb471 Stefan Behrens 2013-04-10 7735 } 31db9f7c23fbf7 Alexander Block 2012-07-25 7736 31db9f7c23fbf7 Alexander Block 2012-07-25 7737 out: 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7738 WARN_ON(sctx && !ret && !RB_EMPTY_ROOT(&sctx->pending_dir_moves)); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7739 while (sctx && !RB_EMPTY_ROOT(&sctx->pending_dir_moves)) { 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7740 struct rb_node *n; 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7741 struct pending_dir_move *pm; 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7742 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7743 n = rb_first(&sctx->pending_dir_moves); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7744 pm = rb_entry(n, struct pending_dir_move, node); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7745 while (!list_empty(&pm->list)) { 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7746 struct pending_dir_move *pm2; 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7747 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7748 pm2 = list_first_entry(&pm->list, 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7749 struct pending_dir_move, list); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7750 free_pending_move(sctx, pm2); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7751 } 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7752 free_pending_move(sctx, pm); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7753 } 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7754 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7755 WARN_ON(sctx && !ret && !RB_EMPTY_ROOT(&sctx->waiting_dir_moves)); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7756 while (sctx && !RB_EMPTY_ROOT(&sctx->waiting_dir_moves)) { 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7757 struct rb_node *n; 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7758 struct waiting_dir_move *dm; 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7759 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7760 n = rb_first(&sctx->waiting_dir_moves); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7761 dm = rb_entry(n, struct waiting_dir_move, node); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7762 rb_erase(&dm->node, &sctx->waiting_dir_moves); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7763 kfree(dm); 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7764 } 9f03740a956d7a Filipe David Borba Manana 2014-01-22 7765 9dc442143b9874 Filipe Manana 2014-02-19 7766 WARN_ON(sctx && !ret && !RB_EMPTY_ROOT(&sctx->orphan_dirs)); 9dc442143b9874 Filipe Manana 2014-02-19 7767 while (sctx && !RB_EMPTY_ROOT(&sctx->orphan_dirs)) { 9dc442143b9874 Filipe Manana 2014-02-19 7768 struct rb_node *n; 9dc442143b9874 Filipe Manana 2014-02-19 7769 struct orphan_dir_info *odi; 9dc442143b9874 Filipe Manana 2014-02-19 7770 9dc442143b9874 Filipe Manana 2014-02-19 7771 n = rb_first(&sctx->orphan_dirs); 9dc442143b9874 Filipe Manana 2014-02-19 7772 odi = rb_entry(n, struct orphan_dir_info, node); 9dc442143b9874 Filipe Manana 2014-02-19 7773 free_orphan_dir_info(sctx, odi); 9dc442143b9874 Filipe Manana 2014-02-19 7774 } 9dc442143b9874 Filipe Manana 2014-02-19 7775 896c14f97f700a Wang Shilong 2014-01-07 7776 if (sort_clone_roots) { 6f9a3da5da9e7e Josef Bacik 2020-01-24 7777 for (i = 0; i < sctx->clone_roots_cnt; i++) { 896c14f97f700a Wang Shilong 2014-01-07 7778 btrfs_root_dec_send_in_progress( 896c14f97f700a Wang Shilong 2014-01-07 7779 sctx->clone_roots[i].root); 0024652895e347 Josef Bacik 2020-01-24 7780 btrfs_put_root(sctx->clone_roots[i].root); 6f9a3da5da9e7e Josef Bacik 2020-01-24 7781 } 896c14f97f700a Wang Shilong 2014-01-07 7782 } else { 6f9a3da5da9e7e Josef Bacik 2020-01-24 7783 for (i = 0; sctx && i < clone_sources_to_rollback; i++) { 896c14f97f700a Wang Shilong 2014-01-07 7784 btrfs_root_dec_send_in_progress( 896c14f97f700a Wang Shilong 2014-01-07 7785 sctx->clone_roots[i].root); 0024652895e347 Josef Bacik 2020-01-24 7786 btrfs_put_root(sctx->clone_roots[i].root); 6f9a3da5da9e7e Josef Bacik 2020-01-24 7787 } 896c14f97f700a Wang Shilong 2014-01-07 7788 896c14f97f700a Wang Shilong 2014-01-07 7789 btrfs_root_dec_send_in_progress(send_root); 896c14f97f700a Wang Shilong 2014-01-07 7790 } 6f9a3da5da9e7e Josef Bacik 2020-01-24 7791 if (sctx && !IS_ERR_OR_NULL(sctx->parent_root)) { 66ef7d65c3fc6e David Sterba 2013-12-17 7792 btrfs_root_dec_send_in_progress(sctx->parent_root); 0024652895e347 Josef Bacik 2020-01-24 7793 btrfs_put_root(sctx->parent_root); 6f9a3da5da9e7e Josef Bacik 2020-01-24 7794 } 2c68653787f91c David Sterba 2013-12-16 7795 2f91306a378099 David Sterba 2016-04-11 7796 kvfree(clone_sources_tmp); 31db9f7c23fbf7 Alexander Block 2012-07-25 7797 31db9f7c23fbf7 Alexander Block 2012-07-25 7798 if (sctx) { 31db9f7c23fbf7 Alexander Block 2012-07-25 7799 if (sctx->send_filp) 31db9f7c23fbf7 Alexander Block 2012-07-25 7800 fput(sctx->send_filp); 31db9f7c23fbf7 Alexander Block 2012-07-25 7801 c03d01f3404282 David Sterba 2016-04-11 7802 kvfree(sctx->clone_roots); 57cd63d9f970d5 Omar Sandoval 2020-05-01 7803 if (sctx->proto >= 2) { 57cd63d9f970d5 Omar Sandoval 2020-05-01 7804 vunmap(sctx->send_buf); 57cd63d9f970d5 Omar Sandoval 2020-05-01 7805 for (i = 0; i < send_buf_num_pages; i++) { 57cd63d9f970d5 Omar Sandoval 2020-05-01 @7806 if (sctx->send_buf_pages[i]) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
