Hi,
there are mainly core changes, refactoring and optimizations. Performance is improved in some areas, overall there may be a cumulative improvement due to refactoring that removed lookups in the IO path or simplified IO submission tracking.
No merge conflicts. Please pull, thanks.
Core:
-
submit IO synchronously for fast checksums (crc32c and xxhash), remove high priority worker kthread
-
read extent buffer in one go, simplify IO tracking, bio submission and locking
-
remove additional tracking of redirtied extent buffers, originally added for zoned mode but actually not needed
-
track ordered extent pointer in bio to avoid rbtree lookups during IO
-
scrub, use recovered data stripes as cache to avoid unnecessary read
-
in zoned mode, optimize logical to physical mappings of extents
-
remove PageError handling, not set by VFS nor writeback
-
cleanups, refactoring, better structure packing
-
lots of error handling improvements
-
more assertions, lockdep annotations
-
print assertion failure with the exact line where it happens
-
tracepoint updates
-
more debugging prints
Performance:
-
speedup in fsync(), better tracking of inode logged status can avoid transaction commit
-
IO path structures track logical offsets in data structures and does not need to look it up
User visible changes:
-
don't commit transaction for every created subvolume, this can reduce time when many subvolumes are created in a batch
-
print affected files when relocation fails
-
trigger orphan file cleanup during START_SYNC ioctl
Notable fixes:
-
fix crash when disabling quota and relocation
-
fix crashes when removing roots from drity list
-
fix transacion abort during relocation when converting from newer profiles not covered by fallback
-
in zoned mode, stop reclaiming block groups if filesystem becomes read-only
-
fix rare race condition in tree mod log rewind that can miss some btree node slots
-
with enabled fsverity, drop up-to-date page bit in case the verification fails