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linux/fs/btrfs
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ChenXiaoSong f7e942b5bb btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit() 
Syzkaller reported BUG as follows:

  BUG: sleeping function called from invalid context at
       include/linux/sched/mm.h:274
  Call Trace:
   <TASK>
   dump_stack_lvl+0xcd/0x134
   __might_resched.cold+0x222/0x26b
   kmem_cache_alloc+0x2e7/0x3c0
   update_qgroup_limit_item+0xe1/0x390
   btrfs_qgroup_inherit+0x147b/0x1ee0
   create_subvol+0x4eb/0x1710
   btrfs_mksubvol+0xfe5/0x13f0
   __btrfs_ioctl_snap_create+0x2b0/0x430
   btrfs_ioctl_snap_create_v2+0x25a/0x520
   btrfs_ioctl+0x2a1c/0x5ce0
   __x64_sys_ioctl+0x193/0x200
   do_syscall_64+0x35/0x80

Fix this by calling qgroup_dirty() on @dstqgroup, and update limit item in
btrfs_run_qgroups() later outside of the spinlock context.

CC: stable@vger.kernel.org # 4.9+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: ChenXiaoSong <chenxiaosong2@huawei.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2022-11-21 14:57:52 +01:00
..
tests
btrfs: selftests: fix wrong error check in btrfs_free_dummy_root()
2022-11-07 14:30:50 +01:00
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: fix inode list leak during backref walking at find_parent_nodes()
2022-11-02 17:43:28 +01:00
backref.h
btrfs: ignore fiemap path cache if we have multiple leaves for a data extent
2022-10-11 14:48:07 +02:00
block-group.c
btrfs: delete stale comments after merge conflict resolution
2022-10-11 14:47:54 +02:00
block-group.h
btrfs: move btrfs_full_stripe_locks_tree into block-group.h
2022-09-26 12:28:06 +02:00
block-rsv.c
btrfs: add KCSAN annotations for unlocked access to block_rsv->full
2022-09-26 12:28:02 +02:00
block-rsv.h
btrfs: add KCSAN annotations for unlocked access to block_rsv->full
2022-09-26 12:28:02 +02:00
btrfs_inode.h
btrfs: use a runtime flag to indicate an inode is a free space inode
2022-09-26 12:28:07 +02:00
check-integrity.c
fs/btrfs: Use the enum req_op and blk_opf_t types
2022-07-14 12:14:32 -06:00
check-integrity.h
btrfs: check-integrity: split submit_bio from btrfsic checking
2022-05-16 17:03:12 +02:00
compression.c
btrfs: unify the lock/unlock extent variants
2022-09-26 12:28:05 +02:00
compression.h
for-5.20-tag
2022-08-03 14:54:52 -07:00
ctree.c
btrfs: fix assertion failure and blocking during nowait buffered write
2022-11-15 15:01:01 +01:00
ctree.h
btrfs: don't print stack trace when transaction is aborted due to ENOMEM
2022-11-07 14:34:57 +01:00
delalloc-space.c
btrfs: add the ability to use NO_FLUSH for data reservations
2022-09-29 17:08:28 +02:00
delalloc-space.h
btrfs: add the ability to use NO_FLUSH for data reservations
2022-09-29 17:08:28 +02:00
delayed-inode.c
btrfs: use delayed items when logging a directory
2022-09-26 12:27:57 +02:00
delayed-inode.h
btrfs: use delayed items when logging a directory
2022-09-26 12:27:57 +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: don't take a bio_counter reference for cloned bios
2022-09-26 12:27:58 +02:00
dev-replace.h
btrfs: add struct declarations in dev-replace.h
2022-09-26 12:28:07 +02:00
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: zoned: initialize device's zone info for seeding
2022-11-07 14:35:24 +01:00
disk-io.h
btrfs: make thaw time super block check to also verify checksum
2022-10-24 15:28:29 +02:00
export.c
btrfs: fix type of parameter generation in btrfs_get_dentry
2022-10-24 15:28:58 +02:00
export.h
btrfs: fix type of parameter generation in btrfs_get_dentry
2022-10-24 15:28:58 +02:00
extent_io.c
btrfs: move end_io_func argument to btrfs_bio_ctrl structure
2022-09-26 12:28:07 +02:00
extent_io.h
btrfs: move extent io tree unrelated prototypes to their appropriate header
2022-09-26 12:28:04 +02:00
extent_map.c
btrfs: drop extent map range more efficiently
2022-09-29 17:08:31 +02:00
extent_map.h
btrfs: add helper to replace extent map range with a new extent map
2022-09-29 17:08:30 +02:00
extent-io-tree.c
btrfs: unlock locked extent area if we have contention
2022-10-11 14:47:06 +02:00
extent-io-tree.h
btrfs: stop tracking failed reads in the I/O tree
2022-09-26 12:28:05 +02:00
extent-tree.c
btrfs: fix tree mod log mishandling of reallocated nodes
2022-10-24 15:28:07 +02:00
file-item.c
btrfs: make can_nocow_extent nowait compatible
2022-09-29 17:08:26 +02:00
file.c
btrfs: fix inode reserve space leak due to nowait buffered write
2022-11-02 17:44:45 +01:00
free-space-cache.c
btrfs: move btrfs_drop_extent_cache() to extent_map.c
2022-09-29 17:08:30 +02:00
free-space-cache.h
btrfs: remove use btrfs_remove_free_space_cache instead of variant
2022-09-26 12:27:58 +02:00
free-space-tree.c
btrfs: get rid of block group caching progress logic
2022-09-26 12:27:58 +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: fix lost file sync on direct IO write with nowait and dsync iocb
2022-10-31 16:52:56 +01:00
ioctl.c
btrfs: free btrfs_path before copying subvol info to userspace
2022-11-15 17:15:45 +01:00
Kconfig
btrfs: use generic Kconfig option for 256kB page size limit
2022-01-20 08:52:55 +02:00
locking.c
btrfs: implement a nowait option for tree searches
2022-09-26 12:46:42 +02:00
locking.h
btrfs: implement a nowait option for tree searches
2022-09-26 12:46:42 +02:00
lzo.c
btrfs: replace kmap() with kmap_local_page() in lzo.c
2022-07-25 17:45:33 +02:00
Makefile
btrfs: move extent state init and alloc functions to their own file
2022-09-26 12:28:03 +02:00
misc.h
btrfs: convert the io_failure_tree to a plain rb_tree
2022-09-26 12:28:02 +02:00
ordered-data.c
btrfs: add btrfs_try_lock_ordered_range
2022-09-29 17:08:28 +02:00
ordered-data.h
btrfs: add btrfs_try_lock_ordered_range
2022-09-29 17:08:28 +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: remove the unnecessary result variables
2022-09-26 12:28:00 +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: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit()
2022-11-21 14:57:52 +01:00
qgroup.h
btrfs: introduce BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING to skip qgroup accounting
2022-09-26 12:28:01 +02:00
raid56.c
btrfs: raid56: avoid double freeing for rbio if full_stripe_write() failed
2022-10-24 15:26:56 +02:00
raid56.h
btrfs: properly abstract the parity raid bio handling
2022-09-26 12:27:59 +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: replace delete argument with EXTENT_CLEAR_ALL_BITS
2022-09-26 12:28:05 +02:00
reflink.h
…
relocation.c
btrfs: add helper to replace extent map range with a new extent map
2022-09-29 17:08:30 +02:00
root-tree.c
btrfs: simplify error handling at btrfs_del_root_ref()
2022-09-26 12:27:58 +02:00
scrub.c
btrfs: zoned: fix locking imbalance on scrub
2022-11-07 14:35:25 +01:00
send.c
btrfs: send: avoid unaligned encoded writes when attempting to clone range
2022-11-21 14:41:41 +01:00
send.h
btrfs: send: allow protocol version 3 with CONFIG_BTRFS_DEBUG
2022-10-11 14:46:55 +02:00
space-info.c
btrfs: add the ability to use NO_FLUSH for data reservations
2022-09-29 17:08:28 +02:00
space-info.h
btrfs: move btrfs_init_async_reclaim_work prototype to space-info.h
2022-09-26 12:28:06 +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: make thaw time super block check to also verify checksum
2022-10-24 15:28:29 +02:00
sysfs.c
btrfs: skip subtree scan if it's too high to avoid low stall in btrfs_commit_transaction()
2022-09-26 12:28:01 +02:00
sysfs.h
btrfs: split and refactor btrfs_sysfs_remove_devices_dir
2020-10-07 12:12:21 +02:00
transaction.c
btrfs: don't init io tree with private data for non-inodes
2022-09-26 12:28:05 +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: make can_nocow_extent nowait compatible
2022-09-29 17:08:26 +02:00
tree-log.h
btrfs: use delayed items when logging a directory
2022-09-26 12:27:57 +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: send: add support for fs-verity
2022-09-26 12:27:55 +02:00
volumes.c
btrfs: zoned: initialize device's zone info for seeding
2022-11-07 14:35:24 +01:00
volumes.h
btrfs: zoned: initialize device's zone info for seeding
2022-11-07 14:35:24 +01:00
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 missing endianness conversion in sb_write_pointer
2022-11-21 14:40:40 +01:00
zoned.h
btrfs: zoned: clone zoned device info when cloning a device
2022-11-07 14:35:21 +01:00
zstd.c
btrfs: zstd: replace kmap() with kmap_local_page()
2022-07-25 17:45:40 +02:00