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Date: Sun, 11 Dec 2016 18:52:29 -0700
From: Jens Axboe <axboe@...nel.dk>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-block@...r.kernel.org" <linux-block@...r.kernel.org>
Subject: [GIT PULL] Block core changes for 4.10
Hi Linus,
This is the main block pull request this series. Contrary to previous
release, I've kept the core and driver changes in the same branch. We
always ended up having dependencies between the two for obvious reasons,
so makes more sense to keep them together. That said, I'll probably try
and keep more topical branches going forward, especially for cycles that
end up being as busy as this one.
The major parts of this pull request is:
- Improved support for O_DIRECT on block devices, with a small private
implementation instead of using the pig that is fs/direct-io.c. From
Christoph.
- Request completion tracking in a scalable fashion. This is utilized by
two components in this pull, the new hybrid polling and the writeback
queue throttling code.
- Improved support for polling with O_DIRECT, adding a hybrid mode that
combines pure polling with an initial sleep. From me.
- Support for automatic throttling of writeback queues on the block
side. This uses feedback from the device completion latencies to scale
the queue on the block side up or down. From me.
- Support from SMR drives in the block layer and for SD. From Hannes and
Shaun.
- Multi-connection support for nbd. From Josef.
- Cleanup of request and bio flags, so we have a clear split between
which are bio (or rq) private, and which ones are shared. From
Christoph.
- A set of patches from Bart, that improve how we handle queue stopping
and starting in blk-mq.
- Support for WRITE_ZEROES from Chaitanya.
- Lightnvm updates from Javier/Matias.
- Supoort for FC for the nvme-over-fabrics code. From James Smart.
- A bunch of fixes from a whole slew of people, too many to name here.
Note that this pull will throw 3 trivial merge conflicts, since we had
patches that went into mainline after 4.9-rc1 (upon which this branch is
based), and one that will not show up in block/blk-flush.c. The latter
is due to a fix that went in for the flush code using an old request
flag that is now changed to a per-request one. To ensure that this all
goes smoothly, I just merged 4.9 with this branch and provide that as a
reference:
git://git.kernel.dk/linux-block.git for-4.10/merge
But really, the only one you to watch for is this line in
block/blk-flush.c:
/* for avoiding double accounting */
rq->cmd_flags &= ~REQ_STARTED;
which should now be:
rq->rq_flags &= ~RQF_STARTED;
and the three merge conflicts that do show up are trivially resolvable.
Please pull!
git://git.kernel.dk/linux-block.git for-4.10/block
----------------------------------------------------------------
Andy Shevchenko (1):
skd_main: use %*ph to dump small buffers
Arnd Bergmann (5):
block: zoned: fix harmless maybe-uninitialized warning
sd: fix uninitialized variable access in error handling
skd: fix msix error handling
skd: fix function prototype
blk-wbt: fix old-style function declaration
Bart Van Assche (18):
blk-mq: Do not invoke .queue_rq() for a stopped queue
blk-mq: Introduce blk_mq_hctx_stopped()
blk-mq: Introduce blk_mq_queue_stopped()
blk-mq: Move more code into blk_mq_direct_issue_request()
blk-mq: Avoid that requeueing starts stopped queues
blk-mq: Remove blk_mq_cancel_requeue_work()
blk-mq: Introduce blk_mq_quiesce_queue()
blk-mq: Add a kick_requeue_list argument to blk_mq_requeue_request()
dm: Use BLK_MQ_S_STOPPED instead of QUEUE_FLAG_STOPPED in blk-mq code
dm: Fix a race condition related to stopping and starting queues
nvme: Fix a race condition related to stopping queues
nvme: Use BLK_MQ_S_STOPPED instead of QUEUE_FLAG_STOPPED in blk-mq code
bsg: Add sparse annotations to bsg_request_fn()
nvmet-rdma: Fix REJ status code
nvme-fabrics: Fix memory leaks in nvmf_parse_options()
nvme-fabrics: Fix a memory leak in an nvmf_create_ctrl() error path
nvme/scsi: Remove set-but-not-used variables
nvme-fabrics: Adjust source code indentation
Chaitanya Kulkarni (5):
block: add async variant of blkdev_issue_zeroout
block: add support for REQ_OP_WRITE_ZEROES
nvme.h: add Write Zeroes definitions
nvme: add support for the Write Zeroes command
nvmet: add support for the Write Zeroes command
Christoph Hellwig (32):
block: remove bio_is_rw
block: REQ_NOMERGE is common to the bio and request
block: move REQ_RAHEAD to common flags
block: replace REQ_THROTTLED with a bio flag
block: split out request-only flags into a new namespace
block: better op and flags encoding
block: add a proper block layer data direction encoding
cfq-iosched: use op_is_sync instead of opencoding it
blk-cgroup: use op_is_sync to check for synchronous requests
umem: use op_is_sync to check for synchronous requests
bcache: use op_is_sync to check for synchronous requests
btrfs: use op_is_sync to check for synchronous requests
block: don't use REQ_SYNC in the READ_SYNC definition
block: treat REQ_FUA and REQ_PREFLUSH as synchronous
block: replace REQ_NOIDLE with REQ_IDLE
block,fs: use REQ_* flags directly
fs: decouple READ and WRITE from the block layer ops
block, fs: move submit_bio to bio.h
block,fs: untangle fs.h and blk_types.h
arm, arm64: don't include blk_types.h in <asm/io.h>
ceph: don't include blk_types.h in messenger.h
mm: only include blk_types in swap.h if CONFIG_SWAP is enabled
block: remove the CONFIG_BLOCK ifdef in blk_types.h
pktcdvd: don't scribble over the bvec array
skd: use pci_alloc_irq_vectors
nvme: introduce struct nvme_request
nvme: don't pass the full CQE to nvme_complete_async_event
block: fast-path for small and simple direct I/O requests
block: new direct I/O implementation
block: clear all of bi_opf in bio_set_op_attrs
blk-wbt: don't throttle discard or write zeroes
block: improve handling of the magic discard payload
Damien Le Moal (4):
block: Add 'zoned' queue limit
sd_zbc: Force use of READ16/WRITE16
block_dev: Fixed direct I/O bio sector calculation
block: Check partition alignment on zoned block devices
Gabriel Krisman Bertazi (2):
blk-mq: Always schedule hctx->next_cpu
blk-mq: Drop explicit timeout sync in hotplug
Geliang Tang (1):
skd_main: drop duplicate header scatterlist.h
Hannes Reinecke (4):
blk-sysfs: Add 'chunk_sectors' to sysfs attributes
block: update chunk_sectors in blk_stack_limits()
block: Implement support for zoned block devices
sd: Implement support for ZBC devices
James Smart (10):
parser: add u64 number parser
nvme-fabrics: set sqe.command_id in core not transports
nvme-fabrics: patch target code in prep for FC transport support
Add type 0x28 NVME type code to scsi fc headers
nvme-fabrics: Add FC transport error codes to nvme.h
nvme-fabrics: Add FC transport FC-NVME definitions
nvme-fabrics: Add FC transport LLDD api definitions
nvme-fabrics: Add host support for FC transport
nvme-fabrics: Add target support for FC transport
nvme-fabrics: Add FC LLDD loopback driver to test FC-NVME
Jan Kara (1):
brd: Switch rd_size to unsigned long
Javier González (21):
lightnvm: enable to send hint to erase command
lightnvm: do not protect block 0
lightnvm: export set bad block table
lightnvm: add ECC error codes
lightnvm: rrpc: split bios of size > 256kb
lightnvm: remove sysfs configuration interface
lightnvm: cleanup unused target operations
lightnvm: make address conversion functions global
lightnvm: remove unnecessary variables in rrpc
lightnvm: use constant name instead of value
lightnvm: remove gen_lun abstraction
lightnvm: manage lun partitions internally in mm
lightnvm: move block provisioning to targets
lightnvm: remove get_lun operation on gennvm
lightnvm: remove debug lun statistics from gennvm
lightnvm: eliminate nvm_block abstraction on mm
lightnvm: eliminate nvm_lun abstraction in mm
lightnvm: introduce helpers for generic ops in rrpc
lightnvm: introduce max_phys_sects helper function
lightnvm: use target nvm on target-specific ops.
lightnvm: transform target get/set bad block
Jens Axboe (36):
blk-mq: get rid of confusing blk_map_ctx structure
block: add REQ_BACKGROUND
writeback: add wbc_to_write_flags()
writeback: mark background writeback as such
block: add code to track actual device queue depth
writeback: track if we're sleeping on progress in balance_dirty_pages()
block: set REQ_SYNC if we clear REQ_FUA|REQ_PREFLUSH
block: add scalable completion tracking of requests
blk-wbt: add general throttling mechanism
block: hook up writeback throttling
blk-mq: blk_mq_try_issue_directly() should lookup hardware queue
block: move poll code to blk-mq
blk-wbt: store queue instead of bdi
blk-wbt: remove stat ops
blk-wbt: use BLK_STAT_{READ,WRITE} instead of 0/1
nbd: fix use-after-free of rq/bio in the xmit path
blk-mq: implement hybrid poll mode for sync O_DIRECT
blk-mq: make the polling code adaptive
block: support a full bio worth of IO for simplified bdev direct-io
block: make __blkdev_direct_IO_sync() support O_SYNC/DSYNC
block: document the 'io_poll_delay' queue sysfs file
pktcdvd: mark as unmaintained and deprecated
block_dev: get rid of blksize bits calculation
nbd: move multi-connection bit to unused value
nbd: fix setting of 'error' in NBD_DO_IT ioctl
blk-wbt: allow reset of default latency through sysfs
blk-wbt: cleanup disable-by-default for CFQ
blk-wbt: allow wbt to be enabled always through sysfs
nbd: fix 64-bit division
blk-mq: blk_account_io_start() takes a bool
Merge branch 'nvmf-4.10' of git://git.infradead.org/nvme-fabrics into for-4.10/block
blk-mq: add blk_mq_start_stopped_hw_queue()
blk-mq: abstract out blk_mq_dispatch_rq_list() helper
elevator: make the rqhash helpers exported
blk-flush: run the queue when inserting blk-mq flush
blk-stat: fix a few cases of missing batch flushing
Johannes Thumshirn (1):
block: drop q argument from bsg_validate_sgv4_hdr
Josef Bacik (4):
nbd: add multi-connection support
nbd: use loff_t for blocksize and nbd_set_size args
nbd: reset the setup task for NBD_CLEAR_SOCK
nbd: use dev_err_ratelimited in io path
Kent Overstreet (1):
block: add bio_iov_iter_get_pages()
Matias Bjørling (2):
nvme: lightnvm: frees wrong cmd structure
nvme: lightnvm: attach lightnvm sysfs to nvme block device
Max Gurtovoy (2):
nvmet-rdma: align to generic ib_event logging helper
nvme-rdma: align to generic ib_event logging helper
Mike Snitzer (1):
brd: remove support for BLKFLSBUF
Ming Lei (10):
block: deal with stale req count of plug list
block: bio: pass bvec table to bio_init()
block: drbd: remove impossible failure handling
block: floppy: use bio_add_page()
target: avoid accessing .bi_vcnt directly
bcache: debug: avoid accessing .bi_io_vec directly
fs: logfs: convert to bio_add_page() in sync_request()
fs: logfs: use bio_add_page() in __bdev_writeseg()
fs: logfs: use bio_add_page() in do_erase()
fs: logfs: remove unnecesary check
Nicolai Stange (1):
block: fix unintended fallthrough in generic_make_request_checks()
Omar Sandoval (3):
loop: return proper error from loop_queue_rq()
nvme: untangle 0 and BLK_MQ_RQ_QUEUE_OK
scsi_lib: untangle 0 and BLK_MQ_RQ_QUEUE_OK
Pan Bian (1):
block: mtip32xx: set error code on failure
Rabin Vincent (1):
block: protect iterate_bdevs() against concurrent close
Ritesh Harjani (1):
block: factor out req_set_nomerge
Sachin Shukla (1):
Block: mtip32xx: Improvement in code readability when memdup_user() fails.
Sagi Grimberg (1):
nvme-rdma: remove redundant define
Samuel Jones (1):
nvme-rdma: force queue size to respect controller capability
Shaohua Li (3):
block: immediately dispatch big size request
blk-mq: immediately dispatch big size request
blk-stat: fix a typo
Shaun Tancheff (3):
block: Define zoned block device operations
blk-zoned: implement ioctls
block: apply blk_partition_remap to REQ_OP_ZONE_RESET
Solganik Alexander (1):
nvmet: Fix possible infinite loop triggered on hot namespace removal
Tejun Heo (2):
block: cfq_cpd_alloc() should use @gfp
block,blkcg: use __GFP_NOWARN for best-effort allocations in blkcg
Tobias Klauser (1):
block: Change extern inline to static inline
Yasuaki Ishimatsu (1):
null_blk: add usage hints for NVM
Documentation/ABI/testing/sysfs-block | 42 +
Documentation/block/biodoc.txt | 6 +-
Documentation/block/cfq-iosched.txt | 32 +-
Documentation/block/null_blk.txt | 2 +-
Documentation/block/queue-sysfs.txt | 23 +
MAINTAINERS | 14 +-
arch/arm/include/asm/io.h | 1 -
arch/arm64/include/asm/io.h | 1 -
block/Kconfig | 35 +
block/Makefile | 4 +-
block/bio-integrity.c | 2 +-
block/bio.c | 68 +-
block/blk-cgroup.c | 9 +-
block/blk-core.c | 261 +--
block/blk-exec.c | 2 +-
block/blk-flush.c | 25 +-
block/blk-lib.c | 177 +-
block/blk-map.c | 6 +-
block/blk-merge.c | 89 +-
block/blk-mq-sysfs.c | 47 +
block/blk-mq.c | 545 ++++-
block/blk-mq.h | 9 +
block/blk-settings.c | 38 +
block/blk-stat.c | 256 ++
block/blk-stat.h | 42 +
block/blk-sysfs.c | 190 ++
block/blk-tag.c | 6 +-
block/blk-throttle.c | 10 +-
block/blk-wbt.c | 750 ++++++
block/blk-wbt.h | 171 ++
block/blk-zoned.c | 348 +++
block/blk.h | 5 +-
block/bsg-lib.c | 2 +
block/bsg.c | 4 +-
block/cfq-iosched.c | 109 +-
block/elevator.c | 44 +-
block/ioctl.c | 4 +
block/partition-generic.c | 65 +
drivers/block/Kconfig | 5 +-
drivers/block/brd.c | 39 +-
drivers/block/drbd/drbd_actlog.c | 2 +-
drivers/block/drbd/drbd_receiver.c | 16 +-
drivers/block/floppy.c | 10 +-
drivers/block/loop.c | 2 +-
drivers/block/mtip32xx/mtip32xx.c | 18 +-
drivers/block/nbd.c | 443 ++--
drivers/block/null_blk.c | 1 +
drivers/block/pktcdvd.c | 49 +-
drivers/block/skd_main.c | 238 +-
drivers/block/umem.c | 2 +-
drivers/block/xen-blkback/blkback.c | 10 +-
drivers/block/xen-blkfront.c | 3 +-
drivers/ide/ide-atapi.c | 6 +-
drivers/ide/ide-cd.c | 46 +-
drivers/ide/ide-cd.h | 2 +-
drivers/ide/ide-cd_ioctl.c | 6 +-
drivers/ide/ide-io.c | 6 +-
drivers/ide/ide-pm.c | 4 +-
drivers/lightnvm/Makefile | 2 +-
drivers/lightnvm/core.c | 377 ++-
drivers/lightnvm/gennvm.c | 645 +++--
drivers/lightnvm/gennvm.h | 34 +-
drivers/lightnvm/lightnvm.h | 35 -
drivers/lightnvm/rrpc.c | 514 ++--
drivers/lightnvm/rrpc.h | 65 +-
drivers/lightnvm/sysblk.c | 98 +-
drivers/lightnvm/sysfs.c | 198 --
drivers/md/bcache/btree.c | 4 +-
drivers/md/bcache/debug.c | 15 +-
drivers/md/bcache/io.c | 4 +-
drivers/md/bcache/journal.c | 4 +-
drivers/md/bcache/movinggc.c | 6 +-
drivers/md/bcache/request.c | 8 +-
drivers/md/bcache/super.c | 16 +-
drivers/md/bcache/writeback.c | 5 +-
drivers/md/bcache/writeback.h | 3 +-
drivers/md/dm-bufio.c | 6 +-
drivers/md/dm-crypt.c | 2 +-
drivers/md/dm-log.c | 2 +-
drivers/md/dm-raid1.c | 4 +-
drivers/md/dm-rq.c | 52 +-
drivers/md/dm-snap-persistent.c | 4 +-
drivers/md/dm.c | 4 +-
drivers/md/md.c | 4 +-
drivers/md/multipath.c | 2 +-
drivers/md/raid5-cache.c | 6 +-
drivers/md/raid5.c | 11 +-
drivers/memstick/core/ms_block.c | 2 +-
drivers/memstick/core/mspro_block.c | 2 +-
drivers/mmc/card/block.c | 4 +-
drivers/mmc/card/queue.c | 4 +-
drivers/nvme/host/Kconfig | 17 +
drivers/nvme/host/Makefile | 3 +
drivers/nvme/host/core.c | 150 +-
drivers/nvme/host/fabrics.c | 33 +-
drivers/nvme/host/fc.c | 2586 +++++++++++++++++++++
drivers/nvme/host/lightnvm.c | 223 +-
drivers/nvme/host/nvme.h | 51 +-
drivers/nvme/host/pci.c | 47 +-
drivers/nvme/host/rdma.c | 43 +-
drivers/nvme/host/scsi.c | 11 +-
drivers/nvme/target/Kconfig | 24 +
drivers/nvme/target/Makefile | 4 +
drivers/nvme/target/admin-cmd.c | 3 +-
drivers/nvme/target/configfs.c | 20 +-
drivers/nvme/target/core.c | 22 +-
drivers/nvme/target/fabrics-cmd.c | 14 +-
drivers/nvme/target/fc.c | 2288 ++++++++++++++++++
drivers/nvme/target/fcloop.c | 1148 +++++++++
drivers/nvme/target/io-cmd.c | 39 +-
drivers/nvme/target/loop.c | 26 +-
drivers/nvme/target/nvmet.h | 8 +-
drivers/nvme/target/rdma.c | 8 +-
drivers/scsi/Makefile | 1 +
drivers/scsi/device_handler/scsi_dh_alua.c | 8 +-
drivers/scsi/device_handler/scsi_dh_emc.c | 2 +-
drivers/scsi/device_handler/scsi_dh_hp_sw.c | 2 +-
drivers/scsi/device_handler/scsi_dh_rdac.c | 2 +-
drivers/scsi/osd/osd_initiator.c | 2 +-
drivers/scsi/osst.c | 2 +-
drivers/scsi/scsi.c | 3 +
drivers/scsi/scsi_error.c | 2 +-
drivers/scsi/scsi_lib.c | 92 +-
drivers/scsi/sd.c | 181 +-
drivers/scsi/sd.h | 70 +
drivers/scsi/sd_zbc.c | 648 ++++++
drivers/scsi/st.c | 2 +-
drivers/scsi/ufs/ufshcd.c | 6 +-
drivers/staging/lustre/include/linux/lnet/types.h | 1 +
drivers/staging/lustre/lustre/llite/rw.c | 1 +
drivers/target/target_core_iblock.c | 8 +-
drivers/target/target_core_pscsi.c | 8 +-
fs/9p/vfs_addr.c | 1 +
fs/block_dev.c | 272 ++-
fs/btrfs/disk-io.c | 8 +-
fs/btrfs/extent_io.c | 16 +-
fs/btrfs/inode.c | 11 +-
fs/btrfs/scrub.c | 2 +-
fs/btrfs/volumes.c | 4 +-
fs/btrfs/volumes.h | 2 +-
fs/buffer.c | 10 +-
fs/cifs/connect.c | 1 +
fs/cifs/transport.c | 1 +
fs/direct-io.c | 4 +-
fs/ext4/mmp.c | 6 +-
fs/ext4/page-io.c | 2 +-
fs/ext4/super.c | 2 +-
fs/f2fs/checkpoint.c | 4 +-
fs/f2fs/data.c | 16 +-
fs/f2fs/f2fs.h | 2 +-
fs/f2fs/gc.c | 6 +-
fs/f2fs/inline.c | 2 +-
fs/f2fs/node.c | 4 +-
fs/f2fs/segment.c | 8 +-
fs/f2fs/super.c | 2 +-
fs/gfs2/dir.c | 1 +
fs/gfs2/log.c | 4 +-
fs/gfs2/lops.c | 2 +-
fs/gfs2/meta_io.c | 7 +-
fs/gfs2/ops_fstype.c | 2 +-
fs/hfsplus/super.c | 4 +-
fs/isofs/compress.c | 1 +
fs/jbd2/checkpoint.c | 2 +-
fs/jbd2/commit.c | 9 +-
fs/jbd2/journal.c | 15 +-
fs/jbd2/revoke.c | 2 +-
fs/jfs/jfs_logmgr.c | 4 +-
fs/logfs/dev_bdev.c | 106 +-
fs/mpage.c | 6 +-
fs/nilfs2/super.c | 2 +-
fs/ntfs/aops.c | 1 +
fs/ntfs/logfile.c | 1 +
fs/ntfs/mft.c | 1 +
fs/ocfs2/buffer_head_io.c | 1 +
fs/ocfs2/cluster/heartbeat.c | 2 +-
fs/orangefs/inode.c | 1 +
fs/reiserfs/inode.c | 1 +
fs/reiserfs/journal.c | 6 +-
fs/reiserfs/stree.c | 1 +
fs/splice.c | 1 +
fs/squashfs/block.c | 1 +
fs/udf/dir.c | 1 +
fs/udf/directory.c | 1 +
fs/udf/inode.c | 1 +
fs/ufs/balloc.c | 1 +
fs/xfs/xfs_aops.c | 7 +-
fs/xfs/xfs_buf.c | 2 +-
include/linux/backing-dev-defs.h | 2 +
include/linux/bio.h | 49 +-
include/linux/blk-cgroup.h | 11 +-
include/linux/blk-mq.h | 11 +-
include/linux/blk_types.h | 188 +-
include/linux/blkdev.h | 231 +-
include/linux/blktrace_api.h | 2 +-
include/linux/ceph/messenger.h | 2 +-
include/linux/dm-io.h | 2 +-
include/linux/elevator.h | 9 +-
include/linux/fs.h | 68 +-
include/linux/kernel.h | 4 +
include/linux/lightnvm.h | 244 +-
include/linux/nvme-fc-driver.h | 851 +++++++
include/linux/nvme-fc.h | 268 +++
include/linux/nvme.h | 43 +-
include/linux/parser.h | 1 +
include/linux/swap.h | 3 +
include/linux/uio.h | 2 +-
include/linux/writeback.h | 13 +
include/scsi/scsi_device.h | 4 +-
include/scsi/scsi_proto.h | 17 +
include/trace/events/bcache.h | 12 +-
include/trace/events/block.h | 31 +-
include/trace/events/f2fs.h | 12 +-
include/trace/events/wbt.h | 153 ++
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/blkzoned.h | 143 ++
include/uapi/linux/fs.h | 4 +
include/uapi/linux/nbd.h | 9 +-
include/uapi/scsi/fc/fc_fs.h | 2 +
kernel/power/swap.c | 19 +-
kernel/trace/blktrace.c | 14 +-
lib/iov_iter.c | 1 +
lib/parser.c | 47 +
mm/backing-dev.c | 1 +
mm/page-writeback.c | 1 +
mm/page_io.c | 5 +-
225 files changed, 14275 insertions(+), 3091 deletions(-)
create mode 100644 block/blk-stat.c
create mode 100644 block/blk-stat.h
create mode 100644 block/blk-wbt.c
create mode 100644 block/blk-wbt.h
create mode 100644 block/blk-zoned.c
delete mode 100644 drivers/lightnvm/lightnvm.h
delete mode 100644 drivers/lightnvm/sysfs.c
create mode 100644 drivers/nvme/host/fc.c
create mode 100644 drivers/nvme/target/fc.c
create mode 100644 drivers/nvme/target/fcloop.c
create mode 100644 drivers/scsi/sd_zbc.c
create mode 100644 include/linux/nvme-fc-driver.h
create mode 100644 include/linux/nvme-fc.h
create mode 100644 include/trace/events/wbt.h
create mode 100644 include/uapi/linux/blkzoned.h
--
Jens Axboe
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