On Thu, May 03, 2018 at 04:53:18PM -0700, Dan Williams wrote:
On Tue, Apr 24, 2018 at 4:33 PM, Dan Williams dan.j.williams@intel.com wrote:
Changes since v8 [1]:
Rebase on v4.17-rc2
Fix get_user_pages_fast() for ZONE_DEVICE pages to revalidate the pte, pmd, pud after taking references (Jan)
Kill dax_layout_lock(). With get_user_pages_fast() for ZONE_DEVICE fixed we can then rely on the {pte,pmd}_lock to synchronize dax_layout_busy_page() vs new page references (Jan)
Hold the iolock over repeated invocations of dax_layout_busy_page() to enable truncate/hole-punch to make forward progress in the presence of a constant stream of new direct-I/O requests (Jan).
I'll push this for soak time in -next if there are no further comments...
I don't have any. :D
--D