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8a1f1e3d1e
linux/fs/btrfs
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Filipe Manana 8a1f1e3d1e btrfs: fix hang during unmount when stopping block group reclaim worker 
During early unmount, at close_ctree(), we try to stop the block group
reclaim task with cancel_work_sync(), but that may hang if the block group
reclaim task is currently at btrfs_relocate_block_group() waiting for the
flag BTRFS_FS_UNFINISHED_DROPS to be cleared from fs_info->flags. During
unmount we only clear that flag later, after trying to stop the block
group reclaim task.

Fix that by clearing BTRFS_FS_UNFINISHED_DROPS before trying to stop the
block group reclaim task and after setting BTRFS_FS_CLOSING_START, so that
if the reclaim task is waiting on that bit, it will stop immediately after
being woken, because it sees the filesystem is closing (with a call to
btrfs_fs_closing()), and then returns immediately with -EINTR.

Fixes: 31e70e5278 ("btrfs: fix hang during unmount when block group reclaim task is running")
CC: stable@vger.kernel.org # 5.15+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2022-09-13 14:05:08 +02:00
..
tests btrfs: add optimized btrfs_ino() version for 64 bits systems 2022-07-25 17:45:41 +02:00
acl.c btrfs: reserve correct number of items for inode creation 2022-05-16 17:03:08 +02:00
async-thread.c btrfs: simplify WQ_HIGHPRI handling in struct btrfs_workqueue 2022-05-16 17:03:15 +02:00
async-thread.h btrfs: remove unused typedefs get_extent_t and btrfs_work_func_t 2022-07-25 17:45:36 +02:00
backref.c btrfs: sink iterator parameter to btrfs_ioctl_logical_to_ino 2022-07-25 17:45:36 +02:00
backref.h btrfs: sink iterator parameter to btrfs_ioctl_logical_to_ino 2022-07-25 17:45:36 +02:00
block-group.c btrfs: fix space cache corruption and potential double allocations 2022-08-23 22:13:54 +02:00
block-group.h btrfs: fix space cache corruption and potential double allocations 2022-08-23 22:13:54 +02:00
block-rsv.c btrfs: use enum for btrfs_block_rsv::type 2022-07-25 17:45:40 +02:00
block-rsv.h btrfs: use enum for btrfs_block_rsv::type 2022-07-25 17:45:40 +02:00
btrfs_inode.h btrfs: add optimized btrfs_ino() version for 64 bits systems 2022-07-25 17:45:41 +02:00
check-integrity.c btrfs: check-integrity: simplify bio allocation in btrfsic_read_block 2022-05-16 17:03:12 +02:00
check-integrity.h btrfs: check-integrity: split submit_bio from btrfsic checking 2022-05-16 17:03:12 +02:00
compression.c btrfs: don't call btrfs_page_set_checked in finish_compressed_bio_read 2022-07-25 19:56:16 +02:00
compression.h btrfs: fix repair of compressed extents 2022-07-25 19:56:16 +02:00
ctree.c btrfs: fix lockdep splat with reloc root extent buffers 2022-08-17 16:19:12 +02:00
ctree.h btrfs: zoned: fix API misuse of zone finish waiting 2022-09-05 15:32:21 +02:00
delalloc-space.c btrfs: convert count_max_extents() to use fs_info->max_extent_size 2022-07-25 17:45:41 +02:00
delalloc-space.h
delayed-inode.c btrfs: batch up release of reserved metadata for delayed items used for deletion 2022-07-25 17:45:37 +02:00
delayed-inode.h btrfs: reduce amount of reserved metadata for delayed item insertion 2022-07-25 17:44:36 +02:00
delayed-ref.c btrfs: switch btrfs_block_rsv::full to bool 2022-07-25 17:45:40 +02:00
delayed-ref.h btrfs: remove btrfs_delayed_extent_op::is_data 2022-05-16 17:17:31 +02:00
dev-replace.c btrfs: add info when mount fails due to stale replace target 2022-08-23 22:15:21 +02:00
dev-replace.h btrfs: zoned: mark block groups to copy for device-replace 2021-02-09 02:46:07 +01:00
dir-item.c btrfs: use btrfs_for_each_slot in btrfs_search_dir_index_item 2022-05-16 17:03:07 +02:00
discard.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
discard.h btrfs: cleanup btrfs_discard_update_discardable usage 2020-12-08 15:54:02 +01:00
disk-io.c btrfs: fix hang during unmount when stopping block group reclaim worker 2022-09-13 14:05:08 +02:00
disk-io.h btrfs: move lockdep class helpers to locking.c 2022-08-17 16:19:10 +02:00
export.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
export.h
extent_io.c btrfs: don't merge pages into bio if their page offset is not contiguous 2022-08-22 18:06:58 +02:00
extent_io.h btrfs: fix repair of compressed extents 2022-07-25 19:56:16 +02:00
extent_map.c btrfs: assert we have a write lock when removing and replacing extent maps 2022-03-14 13:13:50 +01:00
extent_map.h btrfs: defrag: don't use merged extent map for their generation check 2022-02-23 17:43:13 +01:00
extent-io-tree.h btrfs: Convert from invalidatepage to invalidate_folio 2022-03-15 08:23:29 -04:00
extent-tree.c btrfs: fix space cache corruption and potential double allocations 2022-08-23 22:13:54 +02:00
file-item.c btrfs: handle csum lookup errors properly on reads 2022-03-14 13:13:51 +01:00
file.c btrfs: update generation of hole file extent item when merging holes 2022-08-22 18:06:42 +02:00
free-space-cache.c btrfs: clean up chained assignments 2022-07-25 17:45:39 +02:00
free-space-cache.h btrfs: change name and type of private member of btrfs_free_space_ctl 2022-01-03 15:09:50 +01:00
free-space-tree.c btrfs: use rbtree with leftmost node cached for tracking lowest block group 2022-05-16 17:03:13 +02:00
free-space-tree.h
inode-item.c btrfs: make should_throttle loop local in btrfs_truncate_inode_items 2022-01-07 14:18:25 +01:00
inode-item.h btrfs: add inode to truncate control 2022-01-07 14:18:24 +01:00
inode.c btrfs: zoned: fix API misuse of zone finish waiting 2022-09-05 15:32:21 +02:00
ioctl.c btrfs: use fs_info->max_extent_size in get_extent_max_capacity() 2022-07-25 17:45:41 +02:00
Kconfig btrfs: use generic Kconfig option for 256kB page size limit 2022-01-20 08:52:55 +02:00
locking.c btrfs: fix lockdep splat with reloc root extent buffers 2022-08-17 16:19:12 +02:00
locking.h btrfs: fix lockdep splat with reloc root extent buffers 2022-08-17 16:19:12 +02:00
lzo.c btrfs: replace kmap() with kmap_local_page() in lzo.c 2022-07-25 17:45:33 +02:00
Makefile Kbuild: add -Wno-shift-negative-value where -Wextra is used 2022-03-13 17:30:31 +09:00
misc.h btrfs: use correct header for div_u64 in misc.h 2021-09-07 14:29:50 +02:00
ordered-data.c btrfs: remove the finish_func argument to btrfs_mark_ordered_io_finished 2022-07-25 17:45:37 +02:00
ordered-data.h btrfs: remove the finish_func argument to btrfs_mark_ordered_io_finished 2022-07-25 17:45:37 +02:00
orphan.c
print-tree.c btrfs: unify the error handling pattern for read_tree_block() 2022-03-14 13:13:53 +01:00
print-tree.h btrfs: print the actual offset in btrfs_root_name 2021-01-07 17:25:05 +01:00
props.c btrfs: move common inode creation code into btrfs_create_new_inode() 2022-05-16 17:03:08 +02:00
props.h btrfs: move common inode creation code into btrfs_create_new_inode() 2022-05-16 17:03:08 +02:00
qgroup.c btrfs: avoid blocking on space revervation when doing nowait dio writes 2022-05-16 17:03:10 +02:00
qgroup.h btrfs: avoid blocking on space revervation when doing nowait dio writes 2022-05-16 17:03:10 +02:00
raid56.c btrfs: raid56: transfer the bio counter reference to the raid submission helpers 2022-07-25 17:45:40 +02:00
raid56.h btrfs: do not return errors from raid56_parity_recover 2022-07-25 17:45:39 +02:00
rcu-string.h
ref-verify.c btrfs: stop accessing ->extent_root directly 2022-01-03 15:09:49 +01:00
ref-verify.h
reflink.c btrfs: clean up chained assignments 2022-07-25 17:45:39 +02:00
reflink.h
relocation.c btrfs: fix lockdep splat with reloc root extent buffers 2022-08-17 16:19:12 +02:00
root-tree.c btrfs: fix silent failure when deleting root reference 2022-08-23 22:15:21 +02:00
scrub.c btrfs: do not return errors from raid56_parity_recover 2022-07-25 17:45:39 +02:00
send.c btrfs: send: always use the rbtree based inode ref management infrastructure 2022-07-25 17:45:42 +02:00
send.h btrfs: send: add new command FILEATTR for file attributes 2022-07-25 17:45:38 +02:00
space-info.c btrfs: fix the max chunk size and stripe length calculation 2022-09-06 17:49:58 +02:00
space-info.h btrfs: zoned: introduce space_info->active_total_bytes 2022-07-25 17:45:42 +02:00
struct-funcs.c btrfs: remove redundant check in up check_setget_bounds 2022-07-25 17:45:33 +02:00
subpage.c btrfs: remove extent writepage address space operation 2022-07-25 17:45:37 +02:00
subpage.h btrfs: make nodesize >= PAGE_SIZE case to reuse the non-subpage routine 2022-05-16 17:03:11 +02:00
super.c btrfs: use mask for all RAID1* profiles in btrfs_calc_avail_data_space 2022-07-25 17:45:38 +02:00
sysfs.c btrfs: sysfs: remove BIG_METADATA feature files 2022-07-25 17:45:39 +02:00
sysfs.h btrfs: split and refactor btrfs_sysfs_remove_devices_dir 2020-10-07 12:12:21 +02:00
transaction.c btrfs: clean up chained assignments 2022-07-25 17:45:39 +02:00
transaction.h btrfs: pass btrfs_fs_info for deleting snapshots and cleaner 2022-03-14 13:13:52 +01:00
tree-checker.c btrfs: tree-checker: check for overlapping extent items 2022-08-17 16:20:25 +02:00
tree-checker.h btrfs: tree-checker: check extent buffer owner against owner rootid 2022-05-16 17:03:09 +02:00
tree-defrag.c btrfs: remove unnecessary extent root check in btrfs_defrag_leaves 2022-01-03 15:09:48 +01:00
tree-log.c btrfs: fix warning during log replay when bumping inode link count 2022-08-17 16:19:50 +02:00
tree-log.h btrfs: tree-log: make the return value for log syncing consistent 2022-07-25 17:45:34 +02:00
tree-mod-log.c btrfs: fix race when picking most recent mod log operation for an old root 2021-04-20 19:27:17 +02:00
tree-mod-log.h btrfs: add and use helper to get lowest sequence number for the tree mod log 2021-04-19 17:25:17 +02:00
ulist.c
ulist.h
uuid-tree.c btrfs: drop the _nr from the item helpers 2022-01-03 15:09:43 +01:00
verity.c btrfs: drop the _nr from the item helpers 2022-01-03 15:09:43 +01:00
volumes.c btrfs: fix the max chunk size and stripe length calculation 2022-09-06 17:49:58 +02:00
volumes.h btrfs: do not return errors from btrfs_map_bio 2022-07-25 17:45:39 +02:00
xattr.c btrfs: check if root is readonly while setting security xattr 2022-08-22 18:06:30 +02:00
xattr.h
zlib.c btrfs: zlib: replace kmap() with kmap_local_page() in zlib_decompress_bio() 2022-07-25 17:45:41 +02:00
zoned.c btrfs: zoned: fix mounting with conventional zones 2022-09-05 15:39:10 +02:00
zoned.h btrfs: zoned: activate metadata block group on flush_space 2022-07-25 17:45:42 +02:00
zstd.c btrfs: zstd: replace kmap() with kmap_local_page() 2022-07-25 17:45:40 +02:00