> -----Original Message----- > From: Dan Williams [mailto:dan.j.willi...@intel.com] > Sent: Tuesday, April 14, 2015 11:34 AM > To: Elliott, Robert (Server Storage) > > ... > >> Since it's directly mapped it should just work for most things if it's > >> at least write-through cached (UC would be a horror), and it would > >> also solve all the size problems. With write-through caching it should > >> also be pretty OK performance-wise. The 64 bytes size is ideal as > > > > Are the WT support patches going to make it into 4.1? > > Which patches are these? Maybe I missed them, but I don't see > anything in the archives.
These have been baking in linux-mm and linux-next: * [PATCH v3 0/6] Kernel huge I/O mapping support https://lkml.org/lkml/2015/3/3/589 * [PATCH v4 0/7] mtrr, mm, x86: Enhance MTRR checks for huge I/O mapping https://lkml.org/lkml/2015/3/24/1056 I don't think this made it into a subsystem tree yet: * [PATCH v8 0/7] Support Write-Through mapping on x86 https://lkml.org/lkml/2015/2/24/773 I guess we could target 4.2 for both the WT series and pmem patches that support the new ioremap_wt() function. --- Robert Elliott, HP Server Storage N�����r��y����b�X��ǧv�^�){.n�+����{����zX����ܨ}���Ơz�&j:+v�������zZ+��+zf���h���~����i���z� �w���?�����&�)ߢf��^jǫy�m��@A�a��� 0��h���i
