New code for 5.7: - Fix a hard to trigger race between iclog error checking and log shutdown. - Strengthen the AGF verifier. - Ratelimit some of the more spammy error messages. - Remove the icdinode uid/gid members and just use the ones in the vfs inode. - Hold ILOCK across insert/collapse range. - Clean up the extended attribute interfaces. - Clean up the attr flags mess. - Restore PF_MEMALLOC after exiting xfsaild thread to avoid triggering warnings in the process accounting code. - Remove the flexibly-sized array from struct xfs_agfl to eliminate compiler warnings about unaligned pointers and packed structures. - Various macro and typedef removals. - Stale metadata buffers if we decide they're corrupt outside of a verifier. - Check directory data/block/free block owners. - Fix a UAF when aborting inactivation of a corrupt xattr fork. - Teach online scrub to report failed directory and attr name lookups as a metadata corruption instead of a runtime error. - Avoid potential buffer overflows in sysfs files by using scnprintf. - Fix a regression in getdents lookups due to a mistake in pointer arithmetic. - Refactor btree cursor private data structures to use anonymous unions. - Cleanups in the log unmounting code. - Fix a potential mishandling of ENOMEM errors on multi-block directory buffer lookups.