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Merge tag 'for-4.21/block-20181221' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"This is the main pull request for block/storage for 4.21.
Larger than usual, it was a busy round with lots of goodies queued up.
Most notable is the removal of the old IO stack, which has been a long
time coming. No new features for a while, everything coming in this
week has all been fixes for things that were previously merged.
This contains:
- Use atomic counters instead of semaphores for mtip32xx (Arnd)
- Cleanup of the mtip32xx request setup (Christoph)
- Fix for circular locking dependency in loop (Jan, Tetsuo)
- bcache (Coly, Guoju, Shenghui)
* Optimizations for writeback caching
* Various fixes and improvements
- nvme (Chaitanya, Christoph, Sagi, Jay, me, Keith)
* host and target support for NVMe over TCP
* Error log page support
* Support for separate read/write/poll queues
* Much improved polling
* discard OOM fallback
* Tracepoint improvements
- lightnvm (Hans, Hua, Igor, Matias, Javier)
* Igor added packed metadata to pblk. Now drives without metadata
per LBA can be used as well.
* Fix from Geert on uninitialized value on chunk metadata reads.
* Fixes from Hans and Javier to pblk recovery and write path.
* Fix from Hua Su to fix a race condition in the pblk recovery
code.
* Scan optimization added to pblk recovery from Zhoujie.
* Small geometry cleanup from me.
- Conversion of the last few drivers that used the legacy path to
blk-mq (me)
- Removal of legacy IO path in SCSI (me, Christoph)
- Removal of legacy IO stack and schedulers (me)
- Support for much better polling, now without interrupts at all.
blk-mq adds support for multiple queue maps, which enables us to
have a map per type. This in turn enables nvme to have separate
completion queues for polling, which can then be interrupt-less.
Also means we're ready for async polled IO, which is hopefully
coming in the next release.
- Killing of (now) unused block exports (Christoph)
- Unification of the blk-rq-qos and blk-wbt wait handling (Josef)
- Support for zoned testing with null_blk (Masato)
- sx8 conversion to per-host tag sets (Christoph)
- IO priority improvements (Damien)
- mq-deadline zoned fix (Damien)
- Ref count blkcg series (Dennis)
- Lots of blk-mq improvements and speedups (me)
- sbitmap scalability improvements (me)
- Make core inflight IO accounting per-cpu (Mikulas)
- Export timeout setting in sysfs (Weiping)
- Cleanup the direct issue path (Jianchao)
- Export blk-wbt internals in block debugfs for easier debugging
(Ming)
- Lots of other fixes and improvements"
* tag 'for-4.21/block-20181221' of git://git.kernel.dk/linux-block: (364 commits)
kyber: use sbitmap add_wait_queue/list_del wait helpers
sbitmap: add helpers for add/del wait queue handling
block: save irq state in blkg_lookup_create()
dm: don't reuse bio for flushes
nvme-pci: trace SQ status on completions
nvme-rdma: implement polling queue map
nvme-fabrics: allow user to pass in nr_poll_queues
nvme-fabrics: allow nvmf_connect_io_queue to poll
nvme-core: optionally poll sync commands
block: make request_to_qc_t public
nvme-tcp: fix spelling mistake "attepmpt" -> "attempt"
nvme-tcp: fix endianess annotations
nvmet-tcp: fix endianess annotations
nvme-pci: refactor nvme_poll_irqdisable to make sparse happy
nvme-pci: only set nr_maps to 2 if poll queues are supported
nvmet: use a macro for default error location
nvmet: fix comparison of a u16 with -1
blk-mq: enable IO poll if .nr_queues of type poll > 0
blk-mq: change blk_mq_queue_busy() to blk_mq_queue_inflight()
blk-mq: skip zero-queue maps in blk_mq_map_swqueue
...
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| ali14xx.c | ||
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| amd74xx.c | ||
| atiixp.c | ||
| au1xxx-ide.c | ||
| buddha.c | ||
| cmd64x.c | ||
| cmd640.c | ||
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| cy82c693.c | ||
| delkin_cb.c | ||
| dtc2278.c | ||
| falconide.c | ||
| gayle.c | ||
| hpt366.c | ||
| ht6560b.c | ||
| icside.c | ||
| ide_platform.c | ||
| ide-4drives.c | ||
| ide-acpi.c | ||
| ide-atapi.c | ||
| ide-cd_ioctl.c | ||
| ide-cd_verbose.c | ||
| ide-cd.c | ||
| ide-cd.h | ||
| ide-cs.c | ||
| ide-devsets.c | ||
| ide-disk_ioctl.c | ||
| ide-disk_proc.c | ||
| ide-disk.c | ||
| ide-disk.h | ||
| ide-dma-sff.c | ||
| ide-dma.c | ||
| ide-eh.c | ||
| ide-floppy_ioctl.c | ||
| ide-floppy_proc.c | ||
| ide-floppy.c | ||
| ide-floppy.h | ||
| ide-gd.c | ||
| ide-gd.h | ||
| ide-generic.c | ||
| ide-io-std.c | ||
| ide-io.c | ||
| ide-ioctls.c | ||
| ide-iops.c | ||
| ide-legacy.c | ||
| ide-lib.c | ||
| ide-park.c | ||
| ide-pci-generic.c | ||
| ide-pio-blacklist.c | ||
| ide-pm.c | ||
| ide-pnp.c | ||
| ide-probe.c | ||
| ide-proc.c | ||
| ide-scan-pci.c | ||
| ide-sysfs.c | ||
| ide-tape.c | ||
| ide-taskfile.c | ||
| ide-timings.c | ||
| ide-xfer-mode.c | ||
| ide.c | ||
| it821x.c | ||
| it8172.c | ||
| it8213.c | ||
| jmicron.c | ||
| Kconfig | ||
| macide.c | ||
| Makefile | ||
| ns87415.c | ||
| opti621.c | ||
| palm_bk3710.c | ||
| pdc202xx_new.c | ||
| pdc202xx_old.c | ||
| piix.c | ||
| pmac.c | ||
| q40ide.c | ||
| qd65xx.c | ||
| qd65xx.h | ||
| rapide.c | ||
| rz1000.c | ||
| sc1200.c | ||
| serverworks.c | ||
| setup-pci.c | ||
| sgiioc4.c | ||
| siimage.c | ||
| sis5513.c | ||
| sl82c105.c | ||
| slc90e66.c | ||
| tc86c001.c | ||
| triflex.c | ||
| trm290.c | ||
| tx4938ide.c | ||
| tx4939ide.c | ||
| umc8672.c | ||
| via82cxxx.c | ||