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|4b3fae2c||br||Dec. 8, 2016, 4:28 p.m.||Add jz4780 internal codec initialization driver.|
|9373759d||mav||Dec. 8, 2016, 3:58 p.m.||Fix spa_alloc_tree sorting by offset in r305331.
Original commit "7090 zfs should improve allocation order" declares alloc queue sorted by time and offset. But in practice io_offset is always zero, so sorting happened only by time, while order of writes with equal time was completely random. On Illumos this did not affected much thanks to using high resolution timestamps. On FreeBSD due to using much faster but low resolution timestamps it caused bad data placement on disks, affecting further read performance. This change switches zio_timestamp_compare() from comparing uninitialized io_offset to really populated io_bookmark values. I haven't decided yet what to do with timestampts, but on simple tests this change gives the same peformance results by just making code to work as declared. MFC after: 1 weekcgit ViewVC
|29edde94||kib||Dec. 8, 2016, 11:39 a.m.||Use the populate() driver paging method for i915 driver.
In particular, the fault access type is accounted for when the aperture page is moved to GTT domain. On the other hand, the current pager structure is left intact, most important, only one page is instantiated per populate call. Reviewed by: alc Sponsored by: The FreeBSD Foundation MFC after: 3 weekscgit ViewVC
|ed01d989||kib||Dec. 8, 2016, 11:35 a.m.||Implement the populate() pager method for phys pager.
It allows to provide configurable agressive prefaulting and useful hints to page daemon about memory allocations, on faults for pages managed by phys pager. In fact, this implementation is superior to the MAP_SHARED_PHYS hack from my Postgresql paper, while giving similar benefits of reducing the page faults numbers on SysV shared memory mappings. Reviewed by: alc Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 3 weekscgit ViewVC
|c42b43a0||kib||Dec. 8, 2016, 11:26 a.m.||Add a new populate() pager method and extend device pager ops vector
with cdev_pg_populate() to provide device drivers access to it. It gives drivers fine control of the pages ownership and allows drivers to implement arbitrary prefault policies. The populate method is called on a page fault and is supposed to populate the vm object with the page at the fault location and some amount of pages around it, at pager's discretion. VM provides the pager with the hints about current range of the object mapping, to avoid instantiation of immediately unused pages, if pager decides so. Also, VM passes the fault type and map entry protection to the pager, allowing it to force the optimal required ownership of the mapped pages. Installed pages must contiguously fill the returned region, be fully valid and exclusively busied. Of course, the pages must be compatible with the object' type. After populate() successfully returned, VM fault handler installs as many instantiated pages into the process page tables as it sees reasonable, while still obeying the correct semantic for COW and vm map locking. The method is opt-in, pager sets OBJ_POPULATE flag to indicate that the method can be called. If pager' vm objects can be shadowed, pager must implement the traditional getpages() method in addition to the populate(). Populate() might fall back to the getpages() on per-call basis as well, by returning VM_PAGER_BAD error code. For now for device pagers, the populate() method is only allowed to be used by the managed device pagers, but the limitation is only made because there is no unmanaged fault handlers which could use it right now. KPI designed together with, and reviewed by: alc Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 3 weekscgit ViewVC
|dc5401d2||kib||Dec. 8, 2016, 10:29 a.m.||Move map_generation snapshot value into struct faultstate.|
|272cc3c4||kib||Dec. 8, 2016, 10:28 a.m.||Style.|
|4869f594||adrian||Dec. 8, 2016, 7:57 a.m.||[net80211] add a field for storing a 64 bit TSC.|
|36c8d0de||adrian||Dec. 8, 2016, 7:56 a.m.||[net80211] begin fleshing out support for channel survey information to be|
|096d83fe||sephe||Dec. 8, 2016, 5:37 a.m.||hyperv/timesync: Support "sent TC" to improve accuracy.|
|98cb13b6||sephe||Dec. 8, 2016, 5:15 a.m.||hyperv/vmbus: Utilize vmbus_chan_run_task()|
|e94965d8||alc||Dec. 8, 2016, 4:29 a.m.||Previously, vm_radix_remove() would panic if the radix trie didn't
contain a vm_page_t at the specified index. However, with this change, vm_radix_remove() no longer panics. Instead, it returns NULL if there is no vm_page_t at the specified index. Otherwise, it returns the vm_page_t. The motivation for this change is that it simplifies the use of radix tries in the amd64, arm64, and i386 pmap implementations. Instead of performing a lookup before every remove, the pmap can simply perform the remove. Reviewed by: kib, markj Differential Revision: https://reviews.freebsd.org/D8708cgit ViewVC
|3c606f67||markj||Dec. 7, 2016, 11:38 p.m.||Use the correct path to date(1).|
|058f5a9a||markj||Dec. 7, 2016, 11:37 p.m.||Use the native data model instead of forcing ILP32 in tst.provregex3.ksh.|
|6b91eae9||markj||Dec. 7, 2016, 11:36 p.m.||Run DTrace test scripts with "tst" set to the test script file name.|