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Merge tag 'for-7.4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"User visible changes:
- remove tweakable sysfs way to enable features, used only for
extent-irefs which has been default since 3.12; the sysfs interface
makes it complicated due to locking and context, unlike ioctl
- change which backup superblock does mount option
'rescue=usebackuproot' choose, skip the last one due to rotation,
for more fine grained control add options selecting a specific
backup superblock by index (usebackuproot_N)
Notable fixes:
- syslog message fixup of error state description, duplicate 'E'
renamed to 'H' (emergency shutdown), added 'I 'when delayed iputs
are blocked
- use kvmalloc for b-tree buffer allocations, as we're using more
contig ranges because of large folios, the allocations started to
warn on fragmented memory
- handle unknown commands for the /dev/btrfs-control ioctls
- tune timing of transaction commit when the space is getting low
- in raid56, skip verifications if data checksums are not available
Performance improvements:
- reflink speedup, reorder locking and flushing to optimize for more
common cases where the reflinked ranges are accessed, avoid
unnecessary contention
- minor speedup in zstd decompression (+8MB/s)
- reduced contention of inode extent map lock, improves e.g. when
shrinker processes inodes without extent maps, measured time
reduction 10-20%
Core changes:
- move allocation errors out of some contexts (new
inode/dentry/rename) to avoid transaction aborts
- allocate system new chunks earlier, e.g. when consumed by
fallocate, and tune deleting unused block groups if the system
space is low
- tree checker: reject extents for special files
- many qgroup fixes regarding enabling/disabling, other state changes
and qgroup relation updates
- error handling fixes
- refactoring, cleanups:
- page to folio cleanups
- transaction state macros/enums simplification
- parameter simplifications"
* tag 'for-7.4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (92 commits)
btrfs: fix use-after-free on quota enable allocation failure
btrfs: prevent use-after-free in btrfs_transaction::switch_commits
btrfs: return -ENOTTY for unknown ioctls on the control device
btrfs: defrag: fix check to see if next extent can be defragged too
btrfs: defrag: fix key comparison with max defrag key in btrfs_defrag_leaves()
btrfs: use READ_ONCE() to read the chunk size from the data space_info
btrfs: qgroup: make btrfs_record_squota_delta() return void
btrfs: fix lost error return value in btrfs_alloc_logged_file_extent()
btrfs: qgroup: fix off-by-one max level check in qgroup_trace_new_subtree_blocks()
btrfs: abort transaction on qgroup failures in create_pending_snapshot()
btrfs: qgroup: merge error labels in btrfs_quota_enable()
btrfs: qgroup: fix leak of qgroups in rb tree after failure to enable quotas
btrfs: qgroup: abort transaction on failure to add qgroup relation
btrfs: qgroup: fix swapped blocks existence check when tracing after COW
btrfs: introduce more accurate usebackuproot options
btrfs: always use the second newest slot for rescue=usebackuproot
btrfs: raid56: do not verify the content if there is no data checksum
btrfs: qgroup: do not leak -ENOENT from btrfs_remove_qgroup()
btrfs: qgroup: use qgroup_mark_inconsistent() in quick_update_accounting()
btrfs: qgroup: do not treat "ret > 0" as error when deleting a qgroup
...
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