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linux-stable/fs/xfs
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Zizhi Wo ca6448aed4 xfs: Fix missing interval for missing_owner in xfs fsmap 
In the fsmap query of xfs, there is an interval missing problem:
[root@fedora ~]# xfs_io -c 'fsmap -vvvv' /mnt
 EXT: DEV    BLOCK-RANGE           OWNER              FILE-OFFSET      AG AG-OFFSET             TOTAL
   0: 253:16 [0..7]:               static fs metadata                  0  (0..7)                    8
   1: 253:16 [8..23]:              per-AG metadata                     0  (8..23)                  16
   2: 253:16 [24..39]:             inode btree                         0  (24..39)                 16
   3: 253:16 [40..47]:             per-AG metadata                     0  (40..47)                  8
   4: 253:16 [48..55]:             refcount btree                      0  (48..55)                  8
   5: 253:16 [56..103]:            per-AG metadata                     0  (56..103)                48
   6: 253:16 [104..127]:           free space                          0  (104..127)               24
   ......

BUG:
[root@fedora ~]# xfs_io -c 'fsmap -vvvv -d 104 107' /mnt
[root@fedora ~]#
Normally, we should be able to get [104, 107), but we got nothing.

The problem is caused by shifting. The query for the problem-triggered
scenario is for the missing_owner interval (e.g. freespace in rmapbt/
unknown space in bnobt), which is obtained by subtraction (gap). For this
scenario, the interval is obtained by info->last. However, rec_daddr is
calculated based on the start_block recorded in key[1], which is converted
by calling XFS_BB_TO_FSBT. Then if rec_daddr does not exceed
info->next_daddr, which means keys[1].fmr_physical >> (mp)->m_blkbb_log
<= info->next_daddr, no records will be displayed. In the above example,
104 >> (mp)->m_blkbb_log = 12 and 107 >> (mp)->m_blkbb_log = 12, so the two
are reduced to 0 and the gap is ignored:

 before calculate ----------------> after shifting
 104(st)  107(ed)		      12(st/ed)
  |---------|				  |
  sector size			      block size

Resolve this issue by introducing the "end_daddr" field in
xfs_getfsmap_info. This records |key[1].fmr_physical + key[1].length| at
the granularity of sector. If the current query is the last, the rec_daddr
is end_daddr to prevent missing interval problems caused by shifting. We
only need to focus on the last query, because xfs disks are internally
aligned with disk blocksize that are powers of two and minimum 512, so
there is no problem with shifting in previous queries.

After applying this patch, the above problem have been solved:
[root@fedora ~]# xfs_io -c 'fsmap -vvvv -d 104 107' /mnt
 EXT: DEV    BLOCK-RANGE      OWNER            FILE-OFFSET      AG AG-OFFSET        TOTAL
   0: 253:16 [104..106]:      free space                        0  (104..106)           3

Fixes: e89c041338 ("xfs: implement the GETFSMAP ioctl")
Signed-off-by: Zizhi Wo <wozizhi@huawei.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
[djwong: limit the range of end_addr correctly]
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
2024-08-27 18:32:14 +05:30
..
libxfs xfs: xfs_finobt_count_blocks() walks the wrong btree 2024-08-26 09:52:00 +05:30
scrub xfs: fix folio dirtying for XFILE_ALLOC callers 2024-08-26 09:51:27 +05:30
Kconfig xfs: verify buffer, inode, and dquot items every tx commit 2024-07-02 11:36:54 -07:00
Makefile xfs: hoist inode flag conversion functions to libxfs 2024-07-02 11:36:55 -07:00
xfs.h xfs: verify buffer, inode, and dquot items every tx commit 2024-07-02 11:36:54 -07:00
xfs_acl.c xfs: make attr removal an explicit operation 2024-04-23 07:46:51 -07:00
xfs_acl.h
xfs_aops.c xfs: xfs_quota_unreserve_blkres can't fail 2024-05-03 11:15:03 +05:30
xfs_aops.h
xfs_attr_inactive.c xfs: report dir/attr block corruption errors to the health system 2024-02-22 12:32:18 -08:00
xfs_attr_item.c xfs: fix xfs_init_attr_trans not handling explicit operation codes 2024-05-27 15:55:52 +05:30
xfs_attr_item.h xfs: create attr log item opcodes and formats for parent pointers 2024-04-23 07:46:57 -07:00
xfs_attr_list.c xfs: convert comma to semicolon 2024-07-29 09:32:53 +05:30
xfs_bio_io.c
xfs_bmap_item.c xfs: pass the fsbno to xfs_perag_intent_get 2024-07-02 11:37:01 -07:00
xfs_bmap_item.h xfs: move xfs_bmap_defer_add to xfs_bmap_item.c 2024-02-22 12:44:21 -08:00
xfs_bmap_util.c xfs: Fix xfs_prepare_shift() range for RT 2024-07-01 09:32:29 +05:30
xfs_bmap_util.h xfs: fix freeing speculative preallocations for preallocated files 2024-06-26 14:29:17 +05:30
xfs_buf.c getting rid of bogus set_blocksize() uses, switching it 2024-05-21 08:34:51 -07:00
xfs_buf.h New code for 6.9: 2024-03-13 13:52:24 -07:00
xfs_buf_item.c xfs: verify buffer, inode, and dquot items every tx commit 2024-07-02 11:36:54 -07:00
xfs_buf_item.h
xfs_buf_item_recover.c xfs: convert remaining kmem_free() to kfree() 2024-02-13 18:07:34 +05:30
xfs_buf_mem.c xfs: fix dev_t usage in xmbuf tracepoints 2024-03-15 10:30:23 +05:30
xfs_buf_mem.h xfs: launder in-memory btree buffers before transaction commit 2024-02-22 12:43:36 -08:00
xfs_dahash_test.c
xfs_dahash_test.h
xfs_dir2_readdir.c xfs: refactor dir format helpers 2024-04-26 11:21:46 +05:30
xfs_discard.c xfs: don't bother reporting blocks trimmed via FITRIM 2024-08-26 09:52:13 +05:30
xfs_discard.h xfs: move log discard work to xfs_discard.c 2023-10-04 09:24:02 +11:00
xfs_dquot.c xfs: simplify iext overflow checking and upgrade 2024-05-03 11:20:06 +05:30
xfs_dquot.h xfs: Increase XFS_QM_TRANS_MAXDQS to 5 2024-04-15 14:59:01 -07:00
xfs_dquot_item.c xfs: verify buffer, inode, and dquot items every tx commit 2024-07-02 11:36:54 -07:00
xfs_dquot_item.h
xfs_dquot_item_recover.c xfs: dquot recovery does not validate the recovered dquot 2023-11-22 23:39:36 +05:30
xfs_drain.c xfs: pass the fsbno to xfs_perag_intent_get 2024-07-02 11:37:01 -07:00
xfs_drain.h xfs: pass the fsbno to xfs_perag_intent_get 2024-07-02 11:37:01 -07:00
xfs_error.c xfs: add error injection to test file mapping exchange recovery 2024-04-15 14:54:19 -07:00
xfs_error.h
xfs_exchmaps_item.c xfs: capture inode generation numbers in the ondisk exchmaps log item 2024-04-15 14:54:24 -07:00
xfs_exchmaps_item.h xfs: create deferred log items for file mapping exchanges 2024-04-15 14:54:17 -07:00
xfs_exchrange.c xfs: support non-power-of-two rtextsize with exchange-range 2024-04-15 14:54:23 -07:00
xfs_exchrange.h xfs: create deferred log items for file mapping exchanges 2024-04-15 14:54:17 -07:00
xfs_export.c xfs: add parent pointer ioctls 2024-04-23 07:47:00 -07:00
xfs_export.h xfs: add parent pointer ioctls 2024-04-23 07:47:00 -07:00
xfs_extent_busy.c xfs: unwind xfs_extent_busy_clear 2024-04-22 12:53:34 +05:30
xfs_extent_busy.h xfs: repair free space btrees 2023-12-15 10:03:32 -08:00
xfs_extfree_item.c xfs: move xfs_extent_free_defer_add to xfs_extfree_item.c 2024-07-02 11:37:03 -07:00
xfs_extfree_item.h xfs: move xfs_extent_free_defer_add to xfs_extfree_item.c 2024-07-02 11:37:03 -07:00
xfs_file.c xfs: fold xfs_ilock_for_write_fault into xfs_write_fault 2024-07-01 09:32:29 +05:30
xfs_file.h xfs: create a new helper to return a file's allocation unit 2024-04-15 14:54:10 -07:00
xfs_filestream.c xfs: convert remaining kmem_free() to kfree() 2024-02-13 18:07:34 +05:30
xfs_filestream.h
xfs_fsmap.c xfs: Fix missing interval for missing_owner in xfs fsmap 2024-08-27 18:32:14 +05:30
xfs_fsmap.h
xfs_fsops.c xfs: split xfs_mod_freecounter 2024-04-22 18:00:47 +05:30
xfs_fsops.h xfs: split xfs_mod_freecounter 2024-04-22 18:00:47 +05:30
xfs_globals.c xfs: add debug knobs to control btree bulk load slack factors 2023-12-15 10:03:28 -08:00
xfs_handle.c xfs: Remove header files which are included more than once 2024-07-01 09:32:29 +05:30
xfs_handle.h xfs: add parent pointer ioctls 2024-04-23 07:47:00 -07:00
xfs_health.c xfs: report directory tree corruption in the health information 2024-04-23 16:55:17 -07:00
xfs_hooks.c xfs: allow scrub to hook metadata updates in other writers 2024-02-22 12:30:45 -08:00
xfs_hooks.h xfs: allow scrub to hook metadata updates in other writers 2024-02-22 12:30:45 -08:00
xfs_icache.c vfs-6.11.inode 2024-07-15 11:39:44 -07:00
xfs_icache.h xfs: use per-mount cpumask to track nonempty percpu inodegc lists 2023-09-11 08:39:03 -07:00
xfs_icreate_item.c xfs: convert kmem_free() for kvmalloc users to kvfree() 2024-02-13 18:07:34 +05:30
xfs_icreate_item.h
xfs_inode.c xfs: skip flushing log items during push 2024-07-04 12:46:47 +05:30
xfs_inode.h xfs: move dirent update hooks to xfs_dir2.c 2024-07-02 11:37:00 -07:00
xfs_inode_item.c xfs: skip flushing log items during push 2024-07-04 12:46:47 +05:30
xfs_inode_item.h
xfs_inode_item_recover.c xfs: convert remaining kmem_free() to kfree() 2024-02-13 18:07:34 +05:30
xfs_ioctl.c xfs: conditionally allow FS_XFLAG_REALTIME changes if S_DAX is set 2024-08-14 21:20:24 +05:30
xfs_ioctl.h xfs: move handle ioctl code to xfs_handle.c 2024-04-23 07:47:00 -07:00
xfs_ioctl32.c xfs: move handle ioctl code to xfs_handle.c 2024-04-23 07:47:00 -07:00
xfs_ioctl32.h arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
xfs_iomap.c xfs: move the dio write relocking out of xfs_ilock_for_iomap 2024-07-01 09:32:29 +05:30
xfs_iomap.h
xfs_iops.c New code for 6.11: 2024-07-17 12:57:48 -07:00
xfs_iops.h xfs: declare xfs_file.c symbols in xfs_file.h 2024-04-15 14:54:09 -07:00
xfs_itable.c xfs: hide private inodes from bulkstat and handle functions 2024-04-15 14:58:48 -07:00
xfs_itable.h
xfs_iunlink_item.c
xfs_iunlink_item.h
xfs_iwalk.c xfs: Clear W=1 warning in xfs_iwalk_run_callbacks() 2024-05-27 15:54:24 +05:30
xfs_iwalk.h
xfs_linux.h xfs: hoist project id get/set functions to libxfs 2024-07-02 11:36:56 -07:00
xfs_log.c xfs: grant heads track byte counts, not LSNs 2024-07-04 12:46:47 +05:30
xfs_log.h xfs: AIL doesn't need manual pushing 2024-07-04 12:46:46 +05:30
xfs_log_cil.c xfs: grant heads track byte counts, not LSNs 2024-07-04 12:46:47 +05:30
xfs_log_priv.h xfs: grant heads track byte counts, not LSNs 2024-07-04 12:46:47 +05:30
xfs_log_recover.c xfs: grant heads track byte counts, not LSNs 2024-07-04 12:46:47 +05:30
xfs_message.c
xfs_message.h
xfs_mount.c xfs: use an XFS_OPSTATE_ flag for detecting if logged xattrs are available 2024-04-23 07:46:51 -07:00
xfs_mount.h xfs: use an XFS_OPSTATE_ flag for detecting if logged xattrs are available 2024-04-23 07:46:51 -07:00
xfs_mru_cache.c xfs: use GFP_KERNEL in pure transaction contexts 2024-02-13 18:07:35 +05:30
xfs_mru_cache.h
xfs_notify_failure.c mm, pmem, xfs: Introduce MF_MEM_PRE_REMOVE for unbind 2023-12-07 14:34:26 +05:30
xfs_pnfs.c
xfs_pnfs.h
xfs_pwork.c
xfs_pwork.h
xfs_qm.c xfs: separate the icreate logic around INIT_XATTRS 2024-07-02 11:36:58 -07:00
xfs_qm.h xfs: Increase XFS_QM_TRANS_MAXDQS to 5 2024-04-15 14:59:01 -07:00
xfs_qm_bhv.c xfs: Remove header files which are included more than once 2024-07-01 09:32:29 +05:30
xfs_qm_syscalls.c
xfs_quota.h xfs: xfs_quota_unreserve_blkres can't fail 2024-05-03 11:15:03 +05:30
xfs_quotaops.c
xfs_refcount_item.c xfs: move xfs_refcount_update_defer_add to xfs_refcount_item.c 2024-07-02 11:37:07 -07:00
xfs_refcount_item.h xfs: move xfs_refcount_update_defer_add to xfs_refcount_item.c 2024-07-02 11:37:07 -07:00
xfs_reflink.c xfs: convert "skip_discard" to a proper flags bitset 2024-07-02 11:37:01 -07:00
xfs_reflink.h xfs: move inode copy-on-write predicates to xfs_inode.[ch] 2024-07-02 11:36:55 -07:00
xfs_rmap_item.c xfs: move xfs_rmap_update_defer_add to xfs_rmap_item.c 2024-07-02 11:37:05 -07:00
xfs_rmap_item.h xfs: move xfs_rmap_update_defer_add to xfs_rmap_item.c 2024-07-02 11:37:05 -07:00
xfs_rtalloc.c xfs: fix rtalloc rotoring when delalloc is in use 2024-07-09 09:08:28 +05:30
xfs_rtalloc.h xfs: move xfs_bmap_rtalloc to xfs_rtalloc.c 2023-12-22 11:18:11 +05:30
xfs_stats.c xfs: define an in-memory btree for storing refcount bag info during repairs 2024-02-22 12:43:40 -08:00
xfs_stats.h xfs: define an in-memory btree for storing refcount bag info during repairs 2024-02-22 12:43:40 -08:00
xfs_super.c xfs: add a incompat feature bit for parent pointers 2024-04-23 07:47:01 -07:00
xfs_super.h xfs: create scaffolding for creating debugfs entries 2023-08-10 07:48:07 -07:00
xfs_symlink.c xfs: move dirent update hooks to xfs_dir2.c 2024-07-02 11:37:00 -07:00
xfs_symlink.h xfs: move remote symlink target read function to libxfs 2024-02-22 12:45:17 -08:00
xfs_sysctl.c sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
xfs_sysctl.h xfs: add debug knobs to control btree bulk load slack factors 2023-12-15 10:03:28 -08:00
xfs_sysfs.c xfs: grant heads track byte counts, not LSNs 2024-07-04 12:46:47 +05:30
xfs_sysfs.h
xfs_trace.c xfs: l_last_sync_lsn is really AIL state 2024-07-04 12:46:46 +05:30
xfs_trace.h xfs: fix file_path handling in tracepoints 2024-07-29 09:27:23 +05:30
xfs_trans.c xfs: move and rename xfs_trans_committed_bulk 2024-07-04 12:46:46 +05:30
xfs_trans.h xfs: skip flushing log items during push 2024-07-04 12:46:47 +05:30
xfs_trans_ail.c xfs: revert AIL TASK_KILLABLE threshold 2024-08-14 21:19:34 +05:30
xfs_trans_buf.c xfs: launder in-memory btree buffers before transaction commit 2024-02-22 12:43:36 -08:00
xfs_trans_dquot.c xfs: Increase XFS_QM_TRANS_MAXDQS to 5 2024-04-15 14:59:01 -07:00
xfs_trans_priv.h xfs: l_last_sync_lsn is really AIL state 2024-07-04 12:46:46 +05:30
xfs_xattr.c xfs: allow SECURE namespace xattrs to use reserved block pool 2024-07-29 09:26:20 +05:30
xfs_xattr.h xfs: remove xfs_da_args.attr_flags 2024-04-23 07:46:50 -07:00