Hello, this is the third revision of my fixes of races when invalidating hole pages in DAX mappings. See changelogs for details. The series is based on my patches to write-protect DAX PTEs which are currently carried in mm tree. This is a hard dependency because we really need to closely track dirtiness (and cleanness!) of radix tree entries in DAX mappings in order to avoid discarding valid dirty bits leading to missed cache flushes on fsync(2). The tests have passed xfstests for xfs and ext4 in DAX and non-DAX mode. Johannes, are you OK with patch 2/6 in its current form? I'd like to push these patches to some tree once DAX write-protection patches are merged. I'm hoping to get at least first three patches merged for 4.10-rc2... Thanks! Changes since v2: * Added Reviewed-by tags * Fixed commit message of patch 3 * Slightly simplified dax_iomap_pmd_fault() * Renamed truncation functions to express better what they do Changes since v1: * Rebased on top of patches in mm tree * Added some Reviewed-by tags * renamed some functions based on review feedback Honza -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
