While I've fixed both ext4 and XFS to not incorrectly allow parallel writers when mounting with -o dax ext4 still has this issue after the iomap conversion.
Patch 1 fixes it, and patch 2 adds a lockdep assert to catch any new file systems copy and pasting from the direct I/O path. _______________________________________________ Linux-nvdimm mailing list [email protected] https://lists.01.org/mailman/listinfo/linux-nvdimm
