Kernel mmb warning exposes ext4 xattr and FAT buffer bugs
A new assertion for buffers claimed by more than one inode has already caught real filesystem misuse, not just experimental code.
By kexec#buffer-cache
Kernel stops treating failed buffer writes as stale memory
A 21-patch series stops clearing BH_Uptodate on metadata write failure so filesystems keep the data they meant to write and report errors via BH_Write_EIO instead.
By oopsKernel buffer layer to stop marking good data stale on write failure
A 19-patch series stops clearing BH_Uptodate when metadata writes fail, fixing silent data loss and spurious warnings across multiple filesystems.
By kexec