Hi,
please pull the following updates to btrfs. Thanks.
Highlights:
- speedup dead root detection during orphan cleanup, eg. when there are
many deleted subvolumes waiting to be cleaned, the trees are now looked
up in radix tree instead of a O(N^2) search
- snapshot creation with inherited qgroup will mark the qgroup
inconsistent, requires a rescan
- send will emit file capabilities after chown, this produces a stream
that does not need postprocessing to set the capabilities again
- direct io ported to iomap infrastructure, cleaned up and simplified
code, notably removing last use of struct buffer_head in btrfs code
Core changes:
- factor out backreference iteration, to be used by ordinary
backreferences and relocation code
- improved global block reserve utilization
* better logic to serialize requests
* increased maximum available for unlink
* improved handling on large pages (64K)
- direct io cleanups and fixes
* simplify layering, where cloned bios were unnecessarily created for
some cases
* error handling fixes (submit, endio)
* remove repair worker thread, used to avoid deadlocks during
repair
- refactored block group reading code, preparatory work for new type of
block group storage that should improve mount time on large filesystems
Cleanups:
- cleaned up (and slightly sped up) set/get helpers for metadata data
structure members
- root bit REF_COWS got renamed to SHAREABLE to reflect the that the
blocks of the tree get shared either among subvolumes or with the
relocation trees
Fixes:
- when subvolume deletion fails due to ENOSPC, the filesystem is not
turned read-only
- device scan deals with devices from other filesystems that changed
ownership due to overwrite (mkfs)
- fix a race between scrub and block group removal/allocation
- fix long standing bug of a runaway balance operation, printing the same
line to the syslog, caused by a stale status bit on a reloc tree that
prevented progress
- fix corrupt log due to concurrent fsync of inodes with shared extents
- fix space underflow for NODATACOW and buffered writes when it for some
reason needs to fallback to COW mode
----------------------------------------------------------------
The following changes since commit 9cb1fd0efd195590b828b9b865421ad345a4a145:
Linux 5.7-rc7 (2020-05-24 15:32:54 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-5.8-tag
for you to fetch changes up to 2166e5edce9ac1edf3b113d6091ef72fcac2d6c4:
btrfs: fix space_info bytes_may_use underflow during space cache writeout
(2020-05-28 14:01:53 +0200)
----------------------------------------------------------------
Anand Jain (5):
btrfs: drop useless goto in open_fs_devices
btrfs: include non-missing as a qualifier for the latest_bdev
btrfs: free alien device after device add
btrfs: drop stale reference to volume_mutex
btrfs: unexport btrfs_compress_set_level()
Christoph Hellwig (1):
btrfs: split btrfs_direct_IO to read and write part
David Sterba (26):
btrfs: don't force read-only after error in drop snapshot
btrfs: sort error decoder entries
btrfs: add more codes to decoder table
btrfs: remove more obsolete v0 extent ref declarations
btrfs: use the token::eb for all set/get helpers
btrfs: drop eb parameter from set/get token helpers
btrfs: don't use set/get token for single assignment in overwrite_item
btrfs: don't use set/get token in leaf_space_used
btrfs: preset set/get token with first page and drop condition
btrfs: add separate bounds checker for set/get helpers
btrfs: speed up btrfs_get_##bits helpers
btrfs: speed up btrfs_get_token_##bits helpers
btrfs: speed up btrfs_set_##bits helpers
btrfs: speed up btrfs_set_token_##bits helpers
btrfs: speed up and simplify generic_bin_search
btrfs: remove unused map_private_extent_buffer
btrfs: constify extent_buffer in the API functions
btrfs: drop unnecessary offset_in_page in extent buffer helpers
btrfs: optimize split page read in btrfs_get_##bits
btrfs: optimize split page read in btrfs_get_token_##bits
btrfs: optimize split page write in btrfs_set_##bits
btrfs: optimize split page write in btrfs_set_token_##bits
btrfs: update documentation of set/get helpers
btrfs: simplify root lookup by id
btrfs: open code read_fs_root
btrfs: simplify iget helpers
Eric Biggers (1):
btrfs: use crypto_shash_digest() instead of open coding
Filipe Manana (16):
btrfs: remove pointless assertion on reclaim_size counter
btrfs: simplify error handling of clean_pinned_extents()
btrfs: remove useless check for copy_items() return value
btrfs: fix a race between scrub and block group removal/allocation
btrfs: rename member 'trimming' of block group to a more generic name
btrfs: move the block group freeze/unfreeze helpers into block-group.c
btrfs: scrub, only lookup for csums if we are dealing with a data extent
btrfs: fix corrupt log due to concurrent fsync of inodes with shared
extents
btrfs: make checksum item extension more efficient
btrfs: do not ignore error from btrfs_next_leaf() when inserting checksums
btrfs: remove useless 'fail_unlock' label from btrfs_csum_file_blocks()
btrfs: include error on messages about failure to write space/inode caches
btrfs: turn space cache writeout failure messages into debug messages
btrfs: fix wrong file range cleanup after an error filling dealloc range
btrfs: fix space_info bytes_may_use underflow after nocow buffered write
btrfs: fix space_info bytes_may_use underflow during space cache writeout
Goldwyn Rodrigues (6):
fs: export generic_file_buffered_read()
iomap: add a filesystem hook for direct I/O bio submission
iomap: remove lockdep_assert_held()
btrfs: switch to iomap_dio_rw() for dio
fs: remove dio_end_io()
btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK
Josef Bacik (6):
btrfs: improve global reserve stealing logic
btrfs: allow to use up to 90% of the global block rsv for unlink
btrfs: account for trans_block_rsv in may_commit_transaction
btrfs: only check priority tickets for priority flushing
btrfs: run btrfs_try_granting_tickets if a priority ticket fails
btrfs: force chunk allocation if our global rsv is larger than metadata
Jules Irenge (2):
btrfs: add missing annotation for btrfs_lock_cluster()
btrfs: add missing annotation for btrfs_tree_lock()
Marcos Paulo de Souza (1):
btrfs: send: emit file capabilities after chown
Nikolay Borisov (4):
btrfs: use list_for_each_entry_safe in free_reloc_roots
btrfs: make btrfs_read_disk_super return struct btrfs_disk_super
btrfs: open code key_search
btrfs: remove redundant local variable in read_block_for_search
Omar Sandoval (15):
block: add bio_for_each_bvec_all()
btrfs: fix error handling when submitting direct I/O bio
btrfs: fix double __endio_write_update_ordered in direct I/O
btrfs: look at full bi_io_vec for repair decision
btrfs: don't do repair validation for checksum errors
btrfs: clarify btrfs_lookup_bio_sums documentation
btrfs: rename __readpage_endio_check to check_data_csum
btrfs: make btrfs_check_repairable() static
btrfs: remove unused btrfs_dio_private::private
btrfs: convert btrfs_dio_private->pending_bios to refcount_t
btrfs: put direct I/O checksums in btrfs_dio_private instead of bio
btrfs: get rid of one layer of bios in direct I/O
btrfs: simplify direct I/O read repair
btrfs: get rid of endio_repair_workers
btrfs: unify buffered and direct I/O read repair
Qu Wenruo (44):
btrfs: backref: introduce the skeleton of btrfs_backref_iter
btrfs: backref: implement btrfs_backref_iter_next()
btrfs: reloc: use btrfs_backref_iter infrastructure
btrfs: reloc: rename mark_block_processed and __mark_block_processed
btrfs: reloc: add backref_cache::pending_edge and
backref_cache::useless_node
btrfs: reloc: add backref_cache::fs_info member
btrfs: reloc: make reloc root search-specific for relocation backref cache
btrfs: reloc: refactor direct tree backref processing into its own
function
btrfs: reloc: refactor indirect tree backref processing into its own
function
btrfs: reloc: use wrapper to replace open-coded edge linking
btrfs: reloc: pass essential members for alloc_backref_node()
btrfs: reloc: remove the open-coded goto loop for breadth-first search
btrfs: reloc: refactor finishing part of upper linkage into
finish_upper_links()
btrfs: reloc: refactor useless nodes handling into its own function
btrfs: reloc: add btrfs_ prefix for backref_node/edge/cache
btrfs: backref: move btrfs_backref_(node|edge|cache) structures to
backref.h
btrfs: rename tree_entry to rb_simple_node and export it
btrfs: backref: rename and move backref_cache_init()
btrfs: backref: rename and move alloc_backref_node()
btrfs: backref: rename and move alloc_backref_edge()
btrfs: backref: rename and move link_backref_edge()
btrfs: backref: rename and move free_backref_(node|edge)
btrfs: backref: rename and move drop_backref_node()
btrfs: backref: rename and move remove_backref_node()
btrfs: backref: rename and move backref_cache_cleanup()
btrfs: backref: rename and move backref_tree_panic()
btrfs: backref: rename and move should_ignore_root()
btrfs: reloc: open code read_fs_root() for handle_indirect_tree_backref()
btrfs: backref: rename and move handle_one_tree_block()
btrfs: backref: rename and move finish_upper_links()
btrfs: reloc: move error handling of build_backref_tree() to backref.c
btrfs: backref: distinguish reloc and non-reloc use of indirect resolution
btrfs: remove the redundant parameter level in btrfs_bin_search()
btrfs: qgroup: mark qgroup inconsistent if we're inherting snapshot to a
new qgroup
btrfs: block-group: don't set the wrong READA flag for
btrfs_read_block_groups()
btrfs: block-group: refactor how we read one block group item
btrfs: block-group: refactor how we delete one block group item
btrfs: block-group: refactor how we insert a block group item
btrfs: block-group: rename write_one_cache_group()
btrfs: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE
btrfs: inode: cleanup the log-tree exceptions in
btrfs_truncate_inode_items()
btrfs: don't set SHAREABLE flag for data reloc tree
btrfs: reloc: fix reloc root leak and NULL pointer dereference
btrfs: reloc: clear DEAD_RELOC_TREE bit for orphan roots to prevent
runaway balance
Robbie Ko (2):
btrfs: speedup dead root detection during orphan cleanup
btrfs: reduce lock contention when creating snapshot
Tiezhu Yang (1):
btrfs: remove duplicated include in block-group.c
YueHaibing (2):
btrfs: remove unused function heads_to_leaves
btrfs: remove unused function btrfs_dev_extent_chunk_tree_uuid
Zheng Wei (1):
btrfs: tree-checker: remove duplicate definition of 'inode_item_err'
.clang-format | 1 +
Documentation/block/biovecs.rst | 2 +
fs/btrfs/Kconfig | 1 +
fs/btrfs/backref.c | 837 ++++++++++++++++++++++++-
fs/btrfs/backref.h | 297 +++++++++
fs/btrfs/block-group.c | 233 ++++---
fs/btrfs/block-group.h | 14 +-
fs/btrfs/block-rsv.c | 5 +-
fs/btrfs/btrfs_inode.h | 44 +-
fs/btrfs/compression.c | 36 +-
fs/btrfs/compression.h | 2 -
fs/btrfs/ctree.c | 180 +++---
fs/btrfs/ctree.h | 121 ++--
fs/btrfs/disk-io.c | 93 +--
fs/btrfs/disk-io.h | 4 +-
fs/btrfs/export.c | 17 +-
fs/btrfs/extent-io-tree.h | 1 +
fs/btrfs/extent-tree.c | 23 +-
fs/btrfs/extent_io.c | 288 ++++-----
fs/btrfs/extent_io.h | 67 +-
fs/btrfs/file-item.c | 62 +-
fs/btrfs/file.c | 111 +++-
fs/btrfs/free-space-cache.c | 81 +--
fs/btrfs/inode.c | 1319 ++++++++++++++-------------------------
fs/btrfs/ioctl.c | 102 ++-
fs/btrfs/locking.c | 1 +
fs/btrfs/misc.h | 54 ++
fs/btrfs/props.c | 9 +-
fs/btrfs/qgroup.c | 14 +
fs/btrfs/relocation.c | 1319 +++++++++------------------------------
fs/btrfs/root-tree.c | 12 +-
fs/btrfs/scrub.c | 59 +-
fs/btrfs/send.c | 89 ++-
fs/btrfs/space-info.c | 81 ++-
fs/btrfs/space-info.h | 1 +
fs/btrfs/struct-funcs.c | 223 +++----
fs/btrfs/super.c | 38 +-
fs/btrfs/transaction.c | 78 +--
fs/btrfs/transaction.h | 3 +-
fs/btrfs/tree-checker.c | 4 -
fs/btrfs/tree-defrag.c | 2 +-
fs/btrfs/tree-log.c | 192 +++---
fs/btrfs/uuid-tree.c | 6 +-
fs/btrfs/volumes.c | 80 +--
fs/direct-io.c | 19 -
fs/iomap/direct-io.c | 17 +-
include/linux/bio.h | 8 +
include/linux/fs.h | 4 +-
include/linux/iomap.h | 2 +
include/trace/events/btrfs.h | 1 +
include/uapi/linux/btrfs_tree.h | 9 -
mm/filemap.c | 3 +-
52 files changed, 3224 insertions(+), 3045 deletions(-)
