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authorLinus Torvalds <torvalds@linux-foundation.org>2021-06-29 01:28:41 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-29 01:28:41 +0200
commit122fa8c588316aacafe7e5a393bb3e875eaf5b25 (patch)
tree640cfdfae17b02dce1df252000f7b6f79a8a747c /Documentation/admin-guide/sysctl/kernel.rst
parentMerge tag 'erofs-for-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
parentbtrfs: remove unused btrfs_fs_info::total_pinned (diff)
downloadlinux-122fa8c588316aacafe7e5a393bb3e875eaf5b25.tar.xz
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Merge tag 'for-5.14-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba: "A normal mix of improvements, core changes and features that user have been missing or complaining about. User visible changes: - new sysfs exports: - add sysfs knob to limit scrub IO bandwidth per device - device stats are also available in /sys/fs/btrfs/FSID/devinfo/DEVID/error_stats - support cancellable resize and device delete ioctls - change how the empty value is interpreted when setting a property, so far we have only 'btrfs.compression' and we need to distinguish a reset to defaults and setting "do not compress", in general the empty value will always mean 'reset to defaults' for any other property, for compression it's either 'no' or 'none' to forbid compression Performance improvements: - no need for full sync when truncation does not touch extents, reported run time change is -12% - avoid unnecessary logging of xattrs during fast fsyncs (+17% throughput, -17% runtime on xattr stress workload) Core: - preemptive flushing improvements and fixes - adjust clamping logic on multi-threaded workloads to avoid flushing too soon - take into account global block reserve, may help on almost full filesystems - continue flushing when there are enough pending delalloc and ordered bytes - simplify logic around conditional transaction commit, a workaround used in the past for throttling that's been superseded by ticket reservations that manage the throttling in a better way - subpage blocksize preparation: - submit read time repair only for each corrupted sector - scrub repair now works with sectors and not pages - free space cache (v1) works with sectors and not pages - more fine grained bio tracking for extents - subpage support in page callbacks, extent callbacks, end io callbacks - simplify transaction abort logic and always abort and don't check various potentially unreliable stats tracked by the transaction - exclusive operations can do more checks when started and allow eg. cancellation of the same running operation - ensure relocation never runs while we have send operations running, e.g. when zoned background auto reclaim starts Fixes: - zoned: more sanity checks of write pointer - improve error handling in delayed inodes - send: - fix invalid path for unlink operations after parent orphanization - fix crash when memory allocations trigger reclaim - skip compression of we have only one page (can't make things better) - empty value of a property newly means reset to default Other: - lots of cleanups, comment updates, yearly typo fixing - disable build on platforms having page size 256K" * tag 'for-5.14-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (101 commits) btrfs: remove unused btrfs_fs_info::total_pinned btrfs: rip out btrfs_space_info::total_bytes_pinned btrfs: rip the first_ticket_bytes logic from fail_all_tickets btrfs: remove FLUSH_DELAYED_REFS from data ENOSPC flushing btrfs: rip out may_commit_transaction btrfs: send: fix crash when memory allocations trigger reclaim btrfs: ensure relocation never runs while we have send operations running btrfs: shorten integrity checker extent data mount option btrfs: switch mount option bits to enums and use wider type btrfs: props: change how empty value is interpreted btrfs: compression: don't try to compress if we don't have enough pages btrfs: fix unbalanced unlock in qgroup_account_snapshot() btrfs: sysfs: export dev stats in devinfo directory btrfs: fix typos in comments btrfs: remove a stale comment for btrfs_decompress_bio() btrfs: send: use list_move_tail instead of list_del/list_add_tail btrfs: disable build on platforms having page size 256K btrfs: send: fix invalid path for unlink operations after parent orphanization btrfs: inline wait_current_trans_commit_start in its caller btrfs: sink wait_for_unblock parameter to async commit ...
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