Re: [PATCH v3 2/2] xfs: set aside allocation btree blocks from block reservation

["Darrick J. Wong" <djwong@kernel.org>]

On Tue, Apr 13, 2021 at 06:21:56AM +0800, kernel test robot wrote:
> Hi Brian,
> 
> Thank you for the patch! Yet something to improve:
> 
> [auto build test ERROR on xfs-linux/for-next]
> [also build test ERROR on v5.12-rc7 next-20210412]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
> 
> url:    https://github.com/0day-ci/linux/commits/Brian-Foster/xfs-set-aside-allocation-btree-blocks-from-block-reservation/20210412-213222
> base:   https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git for-next
> config: um-randconfig-r022-20210412 (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
> reproduce (this is a W=1 build):
>         # https://github.com/0day-ci/linux/commit/5ffa1f5fa63a4a9c557f90beb5826866fa4aefd0
>         git remote add linux-review https://github.com/0day-ci/linux
>         git fetch --no-tags linux-review Brian-Foster/xfs-set-aside-allocation-btree-blocks-from-block-reservation/20210412-213222
>         git checkout 5ffa1f5fa63a4a9c557f90beb5826866fa4aefd0
>         # save the attached .config to linux build tree
>         make W=1 ARCH=um 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>    syscall.c:(.text+0xa023): undefined reference to `atomic64_inc_386'

What is all this build robot noise I'm suddenly getting about UML and
weird versions of atomic functions?  Seems to build fine on vanilla x64
and arm64, so....is there a real problem here???

--D

>    /usr/bin/ld: kernel/bpf/syscall.o: in function `bpf_link_put':
>    syscall.c:(.text+0xa036): undefined reference to `atomic64_dec_return_386'
>    /usr/bin/ld: kernel/bpf/syscall.o: in function `bpf_tracing_prog_attach':
>    syscall.c:(.text+0xa423): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: kernel/bpf/syscall.o: in function `bpf_link_get_from_fd':
>    syscall.c:(.text+0xa8a7): undefined reference to `atomic64_inc_386'
>    /usr/bin/ld: kernel/bpf/bpf_iter.o: in function `prepare_seq_file':
>    bpf_iter.c:(.text+0x1b2): undefined reference to `atomic64_inc_return_386'
>    /usr/bin/ld: fs/proc/task_mmu.o: in function `task_mem':
>    task_mmu.c:(.text+0x2bfd): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/ext4/balloc.o: in function `ext4_has_free_clusters':
>    balloc.c:(.text+0x94): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/ext4/dir.o: in function `ext4_dir_llseek':
>    dir.c:(.text+0x2d3): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/ext4/dir.o: in function `ext4_readdir':
>    dir.c:(.text+0x84b): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0xc71): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0xc9f): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: dir.c:(.text+0xe1b): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0xe44): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0xe72): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ext4/ialloc.o: in function `get_orlov_stats':
>    ialloc.c:(.text+0x205): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/ext4/inline.o: in function `ext4_add_dirent_to_inline.isra.0':
>    inline.c:(.text+0x14a9): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: inline.c:(.text+0x14df): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ext4/inline.o: in function `ext4_read_inline_dir':
>    inline.c:(.text+0x3dd8): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: inline.c:(.text+0x3ea7): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: inline.c:(.text+0x3ed5): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ext4/inode.o: in function `ext4_do_update_inode':
>    inode.c:(.text+0x3f13): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: inode.c:(.text+0x44bb): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/ext4/inode.o: in function `__ext4_iget':
>    inode.c:(.text+0x7c4d): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: inode.c:(.text+0x8385): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/ext4/inode.o: in function `ext4_mark_iloc_dirty':
>    inode.c:(.text+0x8a69): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: inode.c:(.text+0x8aa0): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ext4/inode.o: in function `ext4_setattr':
>    inode.c:(.text+0xf4ed): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: inode.c:(.text+0xf523): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ext4/ioctl.o: in function `swap_inode_boot_loader':
>    ioctl.c:(.text+0x1794): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/ext4/namei.o: in function `ext4_setent':
>    namei.c:(.text+0x2a0a): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: namei.c:(.text+0x2a41): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ext4/namei.o: in function `add_dirent_to_buf':
>    namei.c:(.text+0x498c): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: namei.c:(.text+0x49c3): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ext4/namei.o: in function `ext4_generic_delete_entry':
>    namei.c:(.text+0x7452): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: namei.c:(.text+0x7488): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ext4/namei.o: in function `ext4_rmdir':
>    namei.c:(.text+0x9f2d): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: namei.c:(.text+0x9f63): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ext4/resize.o: in function `ext4_update_super.isra.0':
>    resize.c:(.text+0x2566): undefined reference to `atomic64_add_386'
>    /usr/bin/ld: fs/ext4/xattr.o: in function `ext4_xattr_inode_iget':
>    xattr.c:(.text+0x6b6): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/ext4/xattr.o: in function `ext4_xattr_inode_update_ref':
>    xattr.c:(.text+0x776): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xattr.c:(.text+0x79f): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/ext4/xattr.o: in function `ext4_xattr_inode_lookup_create':
>    xattr.c:(.text+0x2baf): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/fat/dir.o: in function `fat_remove_entries':
>    dir.c:(.text+0x2cf0): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0x2d27): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/fat/misc.o: in function `fat_update_time':
>    misc.c:(.text+0x721): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: misc.c:(.text+0x75e): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ufs/dir.o: in function `ufs_commit_chunk':
>    dir.c:(.text+0x24): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0x5b): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ufs/dir.o: in function `ufs_readdir':
>    dir.c:(.text+0x62e): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0xa43): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0xa71): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/ufs/inode.o: in function `ufs_iget':
>    inode.c:(.text+0x4331): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: inode.c:(.text+0x4365): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/affs/dir.o: in function `affs_readdir':
>    dir.c:(.text+0xf5): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0x480): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: dir.c:(.text+0x4ae): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/affs/amigaffs.o: in function `affs_remove_hash':
>    amigaffs.c:(.text+0x180): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: amigaffs.c:(.text+0x1b6): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/affs/amigaffs.o: in function `affs_insert_hash':
>    amigaffs.c:(.text+0x4ec): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: amigaffs.c:(.text+0x522): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/xfs/xfs_trace.o: in function `trace_event_raw_event_xfs_log_assign_tail_lsn':
>    xfs_trace.c:(.text+0xe948): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_trace.c:(.text+0xe959): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/xfs_trace.o: in function `trace_event_raw_event_xfs_loggrant_class':
>    xfs_trace.c:(.text+0x1126c): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_trace.c:(.text+0x11286): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_trace.c:(.text+0x112b2): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/libxfs/xfs_alloc.o: in function `xfs_alloc_read_agf':
> >> xfs_alloc.c:(.text+0x63db): undefined reference to `atomic64_add_386'
>    /usr/bin/ld: fs/xfs/libxfs/xfs_alloc_btree.o: in function `xfs_allocbt_free_block':
> >> xfs_alloc_btree.c:(.text+0x844): undefined reference to `atomic64_dec_386'
>    /usr/bin/ld: fs/xfs/libxfs/xfs_alloc_btree.o: in function `xfs_allocbt_alloc_block':
> >> xfs_alloc_btree.c:(.text+0x8d5): undefined reference to `atomic64_inc_386'
>    /usr/bin/ld: fs/xfs/libxfs/xfs_inode_buf.o: in function `xfs_inode_to_disk':
>    xfs_inode_buf.c:(.text+0x5e7): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/libxfs/xfs_inode_buf.o: in function `xfs_inode_from_disk':
>    xfs_inode_buf.c:(.text+0x1409): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/xfs/libxfs/xfs_trans_inode.o: in function `xfs_trans_log_inode':
>    xfs_trans_inode.c:(.text+0x490): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_trans_inode.c:(.text+0x4d8): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/xfs/xfs_icache.o: in function `xfs_iget_cache_hit':
>    xfs_icache.c:(.text+0x1d0c): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_icache.c:(.text+0x1d78): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/xfs/xfs_iops.o: in function `xfs_vn_update_time':
>    xfs_iops.c:(.text+0xab2): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_iops.c:(.text+0xaf8): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/xfs/xfs_inode.o: in function `xfs_init_new_inode':
>    xfs_inode.c:(.text+0x27d): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/xfs/xfs_mount.o: in function `xfs_mod_fdblocks':
> >> xfs_mount.c:(.text+0x24a2): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/xfs_sysfs.o: in function `write_grant_head_show':
>    xfs_sysfs.c:(.text+0x160): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/xfs_sysfs.o: in function `reserve_grant_head_show':
>    xfs_sysfs.c:(.text+0x1a6): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/xfs_sysfs.o: in function `log_tail_lsn_show':
>    xfs_sysfs.c:(.text+0x1ec): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xlog_space_left':
>    xfs_log.c:(.text+0x2cf): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/xfs_log.o:xfs_log.c:(.text+0x2e1): more undefined references to `atomic64_read_386' follow
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xlog_grant_head_init':
>    xfs_log.c:(.text+0x4e5): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xlog_alloc_log':
>    xfs_log.c:(.text+0xceb): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: xfs_log.c:(.text+0xcf6): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xlog_assign_tail_lsn_locked':
>    xfs_log.c:(.text+0x1951): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x196d): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xlog_grant_push_threshold':
>    xfs_log.c:(.text+0x1cc5): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x1ceb): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xfs_log_regrant':
>    xfs_log.c:(.text+0x258d): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x25b2): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xlog_state_do_callback':
>    xfs_log.c:(.text+0x27ab): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x2820): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xlog_sync':
>    xfs_log.c:(.text+0x310e): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x3134): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: xfs_log.c:(.text+0x3243): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x3269): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xfs_log_ticket_regrant':
>    xfs_log.c:(.text+0x5483): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x54be): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: xfs_log.c:(.text+0x54e7): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x5522): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: xfs_log.c:(.text+0x557f): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x559c): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xfs_log_ticket_ungrant':
>    xfs_log.c:(.text+0x5798): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x57d6): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: xfs_log.c:(.text+0x57f9): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x5834): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/xfs/xfs_log.o: in function `xfs_log_reserve':
>    xfs_log.c:(.text+0x5d14): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x5d39): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: xfs_log.c:(.text+0x5da8): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log.c:(.text+0x5dcd): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/xfs/xfs_inode_item.o: in function `xfs_inode_item_format':
>    xfs_inode_item.c:(.text+0x1da9): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/xfs/xfs_log_recover.o: in function `xlog_set_state':
>    xfs_log_recover.c:(.text+0x1e3): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: xfs_log_recover.c:(.text+0x1fd): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: xfs_log_recover.c:(.text+0x21c): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: xfs_log_recover.c:(.text+0x23b): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/xfs/xfs_log_recover.o: in function `xlog_check_unmount_rec':
>    xfs_log_recover.c:(.text+0x460e): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/xfs/xfs_log_recover.o:xfs_log_recover.c:(.text+0x461f): more undefined references to `atomic64_set_386' follow
>    /usr/bin/ld: fs/xfs/xfs_log_recover.o: in function `xlog_find_tail':
>    xfs_log_recover.c:(.text+0x57be): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xfs_log_recover.c:(.text+0x597a): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/nilfs2/inode.o: in function `nilfs_inode_add_blocks':
>    inode.c:(.text+0x5c4): undefined reference to `atomic64_add_386'
>    /usr/bin/ld: fs/nilfs2/inode.o: in function `nilfs_inode_sub_blocks':
>    inode.c:(.text+0x60f): undefined reference to `atomic64_sub_386'
>    /usr/bin/ld: fs/nilfs2/inode.o: in function `nilfs_new_inode':
>    inode.c:(.text+0x738): undefined reference to `atomic64_inc_386'
>    /usr/bin/ld: fs/nilfs2/inode.o: in function `nilfs_evict_inode':
>    inode.c:(.text+0x1d8e): undefined reference to `atomic64_dec_386'
>    /usr/bin/ld: fs/nilfs2/the_nilfs.o: in function `nilfs_find_or_create_root':
>    the_nilfs.c:(.text+0x17f0): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: the_nilfs.c:(.text+0x17fb): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/nilfs2/segment.o: in function `nilfs_segctor_do_construct':
>    segment.c:(.text+0x4e4d): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: segment.c:(.text+0x4e61): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/nilfs2/ifile.o: in function `nilfs_ifile_count_free_inodes':
>    ifile.c:(.text+0x380): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: fs/btrfs/ctree.o: in function `__tree_mod_log_insert':
>    ctree.c:(.text+0x2f8): undefined reference to `atomic64_inc_return_386'
>    /usr/bin/ld: fs/btrfs/ctree.o: in function `btrfs_get_tree_mod_seq':
>    ctree.c:(.text+0x3f69): undefined reference to `atomic64_inc_return_386'
>    /usr/bin/ld: fs/btrfs/transaction.o: in function `join_transaction':
>    transaction.c:(.text+0x1109): undefined reference to `atomic64_set_386'
>    /usr/bin/ld: fs/btrfs/xattr.o: in function `btrfs_xattr_handler_set_prop':
>    xattr.c:(.text+0xec): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xattr.c:(.text+0x122): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/btrfs/xattr.o: in function `btrfs_setxattr_trans':
>    xattr.c:(.text+0xc24): undefined reference to `atomic64_read_386'
>    /usr/bin/ld: xattr.c:(.text+0xc5a): undefined reference to `cmpxchg8b_emu'
>    /usr/bin/ld: fs/btrfs/volumes.o: in function `create_chunk':
>    volumes.c:(.text+0x242c): undefined reference to `atomic64_sub_386'
>    /usr/bin/ld: fs/btrfs/volumes.o: in function `btrfs_remove_chunk':
>    volumes.c:(.text+0x51e7): undefined reference to `atomic64_add_386'
>    /usr/bin/ld: fs/btrfs/volumes.o: in function `btrfs_shrink_device':
>    volumes.c:(.text+0x7977): undefined reference to `atomic64_sub_386'
>    /usr/bin/ld: volumes.c:(.text+0x7bcc): undefined reference to `atomic64_add_386'
>    /usr/bin/ld: fs/btrfs/volumes.o: in function `btrfs_init_new_device':
>    volumes.c:(.text+0xdc15): undefined reference to `atomic64_add_386'
>    /usr/bin/ld: volumes.c:(.text+0xeb10): undefined reference to `atomic64_sub_386'
>    /usr/bin/ld: fs/btrfs/volumes.o: in function `read_one_dev':
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org