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2020-08-06Merge tag 'sched-fifo-2020-08-04' of ↵Linus Torvalds1-4/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull sched/fifo updates from Ingo Molnar: "This adds the sched_set_fifo*() encapsulation APIs to remove static priority level knowledge from non-scheduler code. The three APIs for non-scheduler code to set SCHED_FIFO are: - sched_set_fifo() - sched_set_fifo_low() - sched_set_normal() These are two FIFO priority levels: default (high), and a 'low' priority level, plus sched_set_normal() to set the policy back to non-SCHED_FIFO. Since the changes affect a lot of non-scheduler code, we kept this in a separate tree" * tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) sched,tracing: Convert to sched_set_fifo() sched: Remove sched_set_*() return value sched: Remove sched_setscheduler*() EXPORTs sched,psi: Convert to sched_set_fifo_low() sched,rcutorture: Convert to sched_set_fifo_low() sched,rcuperf: Convert to sched_set_fifo_low() sched,locktorture: Convert to sched_set_fifo() sched,irq: Convert to sched_set_fifo() sched,watchdog: Convert to sched_set_fifo() sched,serial: Convert to sched_set_fifo() sched,powerclamp: Convert to sched_set_fifo() sched,ion: Convert to sched_set_normal() sched,powercap: Convert to sched_set_fifo*() sched,spi: Convert to sched_set_fifo*() sched,mmc: Convert to sched_set_fifo*() sched,ivtv: Convert to sched_set_fifo*() sched,drm/scheduler: Convert to sched_set_fifo*() sched,msm: Convert to sched_set_fifo*() sched,psci: Convert to sched_set_fifo*() sched,drbd: Convert to sched_set_fifo*() ...
2020-08-05Merge tag 'for-5.9/block-merge-20200804' of git://git.kernel.dk/linux-blockLinus Torvalds1-2/+2
Pull block stacking updates from Jens Axboe: "The stacking related fixes depended on both the core block and drivers branches, so here's a topic branch with that change. Outside of that, a late fix from Johannes for zone revalidation" * tag 'for-5.9/block-merge-20200804' of git://git.kernel.dk/linux-block: block: don't do revalidate zones on invalid devices block: remove blk_queue_stack_limits block: remove bdev_stack_limits block: inherit the zoned characteristics in blk_stack_limits
2020-08-05Merge tag 'for-5.9/drivers-20200803' of git://git.kernel.dk/linux-blockLinus Torvalds4-16/+41
Pull block driver updates from Jens Axboe: - NVMe: - ZNS support (Aravind, Keith, Matias, Niklas) - Misc cleanups, optimizations, fixes (Baolin, Chaitanya, David, Dongli, Max, Sagi) - null_blk zone capacity support (Aravind) - MD: - raid5/6 fixes (ChangSyun) - Warning fixes (Damien) - raid5 stripe fixes (Guoqing, Song, Yufen) - sysfs deadlock fix (Junxiao) - raid10 deadlock fix (Vitaly) - struct_size conversions (Gustavo) - Set of bcache updates/fixes (Coly) * tag 'for-5.9/drivers-20200803' of git://git.kernel.dk/linux-block: (117 commits) md/raid5: Allow degraded raid6 to do rmw md/raid5: Fix Force reconstruct-write io stuck in degraded raid5 raid5: don't duplicate code for different paths in handle_stripe raid5-cache: hold spinlock instead of mutex in r5c_journal_mode_show md: print errno in super_written md/raid5: remove the redundant setting of STRIPE_HANDLE md: register new md sysfs file 'uuid' read-only md: fix max sectors calculation for super 1.0 nvme-loop: remove extra variable in create ctrl nvme-loop: set ctrl state connecting after init nvme-multipath: do not fall back to __nvme_find_path() for non-optimized paths nvme-multipath: fix logic for non-optimized paths nvme-rdma: fix controller reset hang during traffic nvme-tcp: fix controller reset hang during traffic nvmet: introduce the passthru Kconfig option nvmet: introduce the passthru configfs interface nvmet: Add passthru enable/disable helpers nvmet: add passthru code to process commands nvme: export nvme_find_get_ns() and nvme_put_ns() nvme: introduce nvme_ctrl_get_by_path() ...
2020-08-04Merge tag 'docs-5.9' of git://git.lwn.net/linuxLinus Torvalds1-1/+1
Pull documentation updates from Jonathan Corbet: "It's been a busy cycle for documentation - hopefully the busiest for a while to come. Changes include: - Some new Chinese translations - Progress on the battle against double words words and non-HTTPS URLs - Some block-mq documentation - More RST conversions from Mauro. At this point, that task is essentially complete, so we shouldn't see this kind of churn again for a while. Unless we decide to switch to asciidoc or something...:) - Lots of typo fixes, warning fixes, and more" * tag 'docs-5.9' of git://git.lwn.net/linux: (195 commits) scripts/kernel-doc: optionally treat warnings as errors docs: ia64: correct typo mailmap: add entry for <alobakin@marvell.com> doc/zh_CN: add cpu-load Chinese version Documentation/admin-guide: tainted-kernels: fix spelling mistake MAINTAINERS: adjust kprobes.rst entry to new location devices.txt: document rfkill allocation PCI: correct flag name docs: filesystems: vfs: correct flag name docs: filesystems: vfs: correct sync_mode flag names docs: path-lookup: markup fixes for emphasis docs: path-lookup: more markup fixes docs: path-lookup: fix HTML entity mojibake CREDITS: Replace HTTP links with HTTPS ones docs: process: Add an example for creating a fixes tag doc/zh_CN: add Chinese translation prefer section doc/zh_CN: add clearing-warn-once Chinese version doc/zh_CN: add admin-guide index doc:it_IT: process: coding-style.rst: Correct __maybe_unused compiler label futex: MAINTAINERS: Re-add selftests directory ...
2020-08-04Merge tag 'uninit-macro-v5.9-rc1' of ↵Linus Torvalds3-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull uninitialized_var() macro removal from Kees Cook: "This is long overdue, and has hidden too many bugs over the years. The series has several "by hand" fixes, and then a trivial treewide replacement. - Clean up non-trivial uses of uninitialized_var() - Update documentation and checkpatch for uninitialized_var() removal - Treewide removal of uninitialized_var()" * tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: compiler: Remove uninitialized_var() macro treewide: Remove uninitialized_var() usage checkpatch: Remove awareness of uninitialized_var() macro mm/debug_vm_pgtable: Remove uninitialized_var() usage f2fs: Eliminate usage of uninitialized_var() macro media: sur40: Remove uninitialized_var() usage KVM: PPC: Book3S PR: Remove uninitialized_var() usage clk: spear: Remove uninitialized_var() usage clk: st: Remove uninitialized_var() usage spi: davinci: Remove uninitialized_var() usage ide: Remove uninitialized_var() usage rtlwifi: rtl8192cu: Remove uninitialized_var() usage b43: Remove uninitialized_var() usage drbd: Remove uninitialized_var() usage x86/mm/numa: Remove uninitialized_var() usage docs: deprecated.rst: Add uninitialized_var()
2020-08-03Merge tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-blockLinus Torvalds20-141/+101
Pull core block updates from Jens Axboe: "Good amount of cleanups and tech debt removals in here, and as a result, the diffstat shows a nice net reduction in code. - Softirq completion cleanups (Christoph) - Stop using ->queuedata (Christoph) - Cleanup bd claiming (Christoph) - Use check_events, moving away from the legacy media change (Christoph) - Use inode i_blkbits consistently (Christoph) - Remove old unused writeback congestion bits (Christoph) - Cleanup/unify submission path (Christoph) - Use bio_uninit consistently, instead of bio_disassociate_blkg (Christoph) - sbitmap cleared bits handling (John) - Request merging blktrace event addition (Jan) - sysfs add/remove race fixes (Luis) - blk-mq tag fixes/optimizations (Ming) - Duplicate words in comments (Randy) - Flush deferral cleanup (Yufen) - IO context locking/retry fixes (John) - struct_size() usage (Gustavo) - blk-iocost fixes (Chengming) - blk-cgroup IO stats fixes (Boris) - Various little fixes" * tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block: (135 commits) block: blk-timeout: delete duplicated word block: blk-mq-sched: delete duplicated word block: blk-mq: delete duplicated word block: genhd: delete duplicated words block: elevator: delete duplicated word and fix typos block: bio: delete duplicated words block: bfq-iosched: fix duplicated word iocost_monitor: start from the oldest usage index iocost: Fix check condition of iocg abs_vdebt block: Remove callback typedefs for blk_mq_ops block: Use non _rcu version of list functions for tag_set_list blk-cgroup: show global disk stats in root cgroup io.stat blk-cgroup: make iostat functions visible to stat printing block: improve discard bio alignment in __blkdev_issue_discard() block: change REQ_OP_ZONE_RESET and REQ_OP_ZONE_RESET_ALL to be odd numbers block: defer flush request no matter whether we have elevator block: make blk_timeout_init() static block: remove retry loop in ioc_release_fn() block: remove unnecessary ioc nested locking block: integrate bd_start_claiming into __blkdev_get ...
2020-07-20block: remove blk_queue_stack_limitsChristoph Hellwig1-2/+2
This function is just a tiny wrapper around blk_stack_limits. Open code it int the two callers. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Tested-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-20Merge branch 'for-5.9/drivers' into for-5.9/block-mergeJens Axboe4-16/+41
* for-5.9/drivers: (38 commits) block: add max_active_zones to blk-sysfs block: add max_open_zones to blk-sysfs s390/dasd: Use struct_size() helper s390/dasd: fix inability to use DASD with DIAG driver md-cluster: fix wild pointer of unlock_all_bitmaps() md/raid5-cache: clear MD_SB_CHANGE_PENDING before flushing stripes md: fix deadlock causing by sysfs_notify md: improve io stats accounting md: raid0/linear: fix dereference before null check on pointer mddev rsxx: switch from 'pci_free_consistent()' to 'dma_free_coherent()' nvme: remove ns->disk checks nvme-pci: use standard block status symbolic names nvme-pci: use the consistent return type of nvme_pci_iod_alloc_size() nvme-pci: add a blank line after declarations nvme-pci: fix some comments issues nvme-pci: remove redundant segment validation nvme: document quirked Intel models nvme: expose reconnect_delay and ctrl_loss_tmo via sysfs nvme: support for zoned namespaces nvme: support for multiple Command Sets Supported and Effects log pages ...
2020-07-20Merge branch 'for-5.9/block' into for-5.9/block-mergeJens Axboe20-141/+101
* for-5.9/block: (124 commits) blk-cgroup: show global disk stats in root cgroup io.stat blk-cgroup: make iostat functions visible to stat printing block: improve discard bio alignment in __blkdev_issue_discard() block: change REQ_OP_ZONE_RESET and REQ_OP_ZONE_RESET_ALL to be odd numbers block: defer flush request no matter whether we have elevator block: make blk_timeout_init() static block: remove retry loop in ioc_release_fn() block: remove unnecessary ioc nested locking block: integrate bd_start_claiming into __blkdev_get block: use bd_prepare_to_claim directly in the loop driver block: refactor bd_start_claiming block: simplify the restart case in __blkdev_get Revert "blk-rq-qos: remove redundant finish_wait to rq_qos_wait." block: always remove partitions from blk_drop_partitions() block: relax jiffies rounding for timeouts blk-mq: remove redundant validation in __blk_mq_end_request() blk-mq: Remove unnecessary local variable writeback: remove bdi->congested_fn writeback: remove struct bdi_writeback_congested writeback: remove {set,clear}_wb_congested ...
2020-07-16treewide: Remove uninitialized_var() usageKees Cook2-4/+4
Using uninitialized_var() is dangerous as it papers over real bugs[1] (or can in the future), and suppresses unrelated compiler warnings (e.g. "unused variable"). If the compiler thinks it is uninitialized, either simply initialize the variable or make compiler changes. In preparation for removing[2] the[3] macro[4], remove all remaining needless uses with the following script: git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \ xargs perl -pi -e \ 's/\buninitialized_var\(([^\)]+)\)/\1/g; s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;' drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid pathological white-space. No outstanding warnings were found building allmodconfig with GCC 9.3.0 for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64, alpha, and m68k. [1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/ [2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/ [3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/ [4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/ Reviewed-by: Leon Romanovsky <leonro@mellanox.com> # drivers/infiniband and mlx4/mlx5 Acked-by: Jason Gunthorpe <jgg@mellanox.com> # IB Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless drivers Reviewed-by: Chao Yu <yuchao0@huawei.com> # erofs Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-16drbd: Remove uninitialized_var() usageKees Cook1-1/+1
Using uninitialized_var() is dangerous as it papers over real bugs[1] (or can in the future), and suppresses unrelated compiler warnings (e.g. "unused variable"). If the compiler thinks it is uninitialized, either simply initialize the variable or make compiler changes. As a precursor to removing[2] this[3] macro[4], just initialize this variable to NULL. [1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/ [2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/ [3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/ [4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/ Fixes: a29728463b25 ("drbd: Backport the "events2" command") Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-16Merge tag 'char-misc-5.8-rc6' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into master Pull char/misc fixes from Greg KH: "Here are number of small char/misc driver fixes for 5.8-rc6 Not that many complex fixes here, just a number of small fixes for reported issues, and some new device ids. Nothing fancy. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits) virtio: virtio_console: add missing MODULE_DEVICE_TABLE() for rproc serial intel_th: Fix a NULL dereference when hub driver is not loaded intel_th: pci: Add Emmitsburg PCH support intel_th: pci: Add Tiger Lake PCH-H support intel_th: pci: Add Jasper Lake CPU support virt: vbox: Fix guest capabilities mask check virt: vbox: Fix VBGL_IOCTL_VMMDEV_REQUEST_BIG and _LOG req numbers to match upstream uio_pdrv_genirq: fix use without device tree and no interrupt uio_pdrv_genirq: Remove warning when irq is not specified coresight: etmv4: Fix CPU power management setup in probe() function coresight: cti: Fix error handling in probe Revert "zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()" mei: bus: don't clean driver pointer misc: atmel-ssc: lock with mutex instead of spinlock phy: sun4i-usb: fix dereference of pointer phy0 before it is null checked phy: rockchip: Fix return value of inno_dsidphy_probe() phy: ti: j721e-wiz: Constify structs phy: ti: am654-serdes: Constify regmap_config phy: intel: fix enum type mismatch warning phy: intel: Fix compilation error on FIELD_PREP usage ...
2020-07-16block: use bd_prepare_to_claim directly in the loop driverChristoph Hellwig1-4/+3
The arcane magic in bd_start_claiming is only needed to be able to claim a block_device that hasn't been fully set up. Switch the loop driver that claims from the ioctl path with a fully set up struct block_device to just use the much simpler bd_prepare_to_claim directly. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-11rsxx: switch from 'pci_free_consistent()' to 'dma_free_coherent()'Christophe JAILLET1-14/+16
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script bellow. It has been compile tested. This also aligns code with what is in use in '/rsxx/dma.c' @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-10Merge tag 'block-5.8-2020-07-10' of git://git.kernel.dk/linux-blockLinus Torvalds1-10/+15
Pull block fixes from Jens Axboe: - Fix for inflight accounting, which affects only dm (Ming) - Fix documentation error for bfq (Yufen) - Fix memory leak for nbd (Zheng) * tag 'block-5.8-2020-07-10' of git://git.kernel.dk/linux-block: nbd: Fix memory leak in nbd_add_socket blk-mq: consider non-idle request as "inflight" in blk_mq_rq_inflight() docs: block: update and fix tiny error for bfq
2020-07-08writeback: remove bdi->congested_fnChristoph Hellwig1-59/+0
Except for pktdvd, the only places setting congested bits are file systems that allocate their own backing_dev_info structures. And pktdvd is a deprecated driver that isn't useful in stack setup either. So remove the dead congested_fn stacking infrastructure. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Song Liu <song@kernel.org> Acked-by: David Sterba <dsterba@suse.com> [axboe: fixup unused variables in bcache/request.c] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-08drbd: remove a bogus bdi_rw_congested callChristoph Hellwig1-1/+0
bdi_rw_congested returns congestion state, so calling it without looking at the return value doesn't make much sense. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-08nbd: Fix memory leak in nbd_add_socketZheng Bin1-10/+15
When adding first socket to nbd, if nsock's allocation failed, the data structure member "config->socks" was reallocated, but the data structure member "config->num_connections" was not updated. A memory leak will occur then because the function "nbd_config_put" will free "config->socks" only when "config->num_connections" is not zero. Fixes: 03bf73c315ed ("nbd: prevent memory leak") Reported-by: syzbot+934037347002901b8d2a@syzkaller.appspotmail.com Signed-off-by: Zheng Bin <zhengbin13@huawei.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-08null_blk: introduce zone capacity for zoned deviceAravind Ramesh3-3/+24
Allow emulation of a zoned device with a per zone capacity smaller than the zone size as as defined in the Zoned Namespace (ZNS) Command Set specification. The zone capacity defaults to the zone size if not specified and must be smaller than the zone size otherwise. Reviewed-by: Matias Bjørling <matias.bjorling@wdc.com> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Aravind Ramesh <aravind.ramesh@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08block: add capacity field to zone descriptorsMatias Bjørling1-0/+2
In the zoned storage model, the sectors within a zone are typically all writeable. With the introduction of the Zoned Namespace (ZNS) Command Set in the NVM Express organization, the model was extended to have a specific writeable capacity. Extend the zone descriptor data structure with a zone capacity field to indicate to the user how many sectors in a zone are writeable. Introduce backward compatibility in the zone report ioctl by extending the zone report header data structure with a flags field to indicate if the capacity field is available. Reviewed-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Javier González <javier.gonz@samsung.com> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Matias Bjørling <matias.bjorling@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08Merge tag 'v5.8-rc4' into for-5.9/driversJens Axboe1-0/+1
Merge in 5.8-rc4 for-5.9/block to setup for-5.9/drivers, to provide a clean base and making the life for the NVMe changes easier. Signed-off-by: Jens Axboe <axboe@kernel.dk> * tag 'v5.8-rc4': (732 commits) Linux 5.8-rc4 x86/ldt: use "pr_info_once()" instead of open-coding it badly MIPS: Do not use smp_processor_id() in preemptible code MIPS: Add missing EHB in mtc0 -> mfc0 sequence for DSPen .gitignore: Do not track `defconfig` from `make savedefconfig` io_uring: fix regression with always ignoring signals in io_cqring_wait() x86/ldt: Disable 16-bit segments on Xen PV x86/entry/32: Fix #MC and #DB wiring on x86_32 x86/entry/xen: Route #DB correctly on Xen PV x86/entry, selftests: Further improve user entry sanity checks x86/entry/compat: Clear RAX high bits on Xen PV SYSENTER i2c: mlxcpld: check correct size of maximum RECV_LEN packet i2c: add Kconfig help text for slave mode i2c: slave-eeprom: update documentation i2c: eg20t: Load module automatically if ID matches i2c: designware: platdrv: Set class based on DMI i2c: algo-pca: Add 0x78 as SCL stuck low status for PCA9665 mm/page_alloc: fix documentation error vmalloc: fix the owner argument for the new __vmalloc_node_range callers mm/cma.c: use exact_nid true to fix possible per-numa cma leak ...
2020-07-05Replace HTTP links with HTTPS ones: DRBD driverAlexander A. Klimov1-1/+1
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Link: https://lore.kernel.org/r/20200627103111.71771-1-grandmaster@al2klimov.de Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-07-02Merge tag 'block-5.8-2020-07-01' of git://git.kernel.dk/linux-blockLinus Torvalds1-0/+1
Pull block fixes from Jens Axboe: - Use kvfree_sensitive() for the block keyslot free (Eric) - Sync blk-mq debugfs flags (Hou) - Memory leak fix in virtio-blk error path (Hou) * tag 'block-5.8-2020-07-01' of git://git.kernel.dk/linux-block: virtio-blk: free vblk-vqs in error path of virtblk_probe() block/keyslot-manager: use kvfree_sensitive() blk-mq-debugfs: update blk_queue_flag_name[] accordingly for new flags
2020-07-01Revert "zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()"Wade Mealing1-1/+2
Turns out that the permissions for 0400 really are what we want here, otherwise any user can read from this file. [fixed formatting, added changelog, and made attribute static - gregkh] Reported-by: Wade Mealing <wmealing@redhat.com> Cc: stable <stable@vger.kernel.org> Fixes: f40609d1591f ("zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()") Link: https://bugzilla.redhat.com/show_bug.cgi?id=1847832 Reviewed-by: Steffen Maier <maier@linux.ibm.com> Acked-by: Minchan Kim <minchan@kernel.org> Link: https://lore.kernel.org/r/20200617114946.GA2131650@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-01floppy: use block_sizeChristoph Hellwig1-6/+1
Use the block_size helper instead of open coding it. Also remove the check for a 0 block size, as that can't happen. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-01block: rename generic_make_request to submit_bio_noacctChristoph Hellwig6-8/+8
generic_make_request has always been very confusingly misnamed, so rename it to submit_bio_noacct to make it clear that it is submit_bio minus accounting and a few checks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-01block: move ->make_request_fn to struct block_device_operationsChristoph Hellwig10-34/+50
The make_request_fn is a little weird in that it sits directly in struct request_queue instead of an operation vector. Replace it with a block_device_operations method called submit_bio (which describes much better what it does). Also remove the request_queue argument to it, as the queue can be derived pretty trivially from the bio. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-01block: remove the request_queue argument from blk_queue_splitChristoph Hellwig5-5/+5
The queue can be trivially derived from the bio, so pass one less argument. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-01zram: stop using ->queuedataChristoph Hellwig1-2/+1
Instead of setting up the queuedata as well just use one private data field. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-01umem: stop using ->queuedataChristoph Hellwig1-2/+2
Instead of setting up the queuedata as well just use one private data field. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-01rsxx: stop using ->queuedataChristoph Hellwig1-4/+1
Instead of setting up the queuedata as well just use one private data field. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-01ps3vram: stop using ->queuedataChristoph Hellwig1-2/+1
Instead of setting up the queuedata as well just use one private data field. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-01null_blk: stop using ->queuedata for bio modeChristoph Hellwig1-1/+1
Instead of setting up the queuedata as well just use one private data field. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-01drbd: stop using ->queuedataChristoph Hellwig2-2/+1
Instead of setting up the queuedata as well just use one private data field. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-06-30virtio-blk: free vblk-vqs in error path of virtblk_probe()Hou Tao1-0/+1
Else there will be memory leak if alloc_disk() fails. Fixes: 6a27b656fc02 ("block: virtio-blk: support multi virt queues per virtio-blk device") Signed-off-by: Hou Tao <houtao1@huawei.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-06-24loop: be paranoid on exit and prevent new additions / removalsLuis Chamberlain1-0/+4
Be pedantic on removal as well and hold the mutex. This should prevent uses of addition while we exit. Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-06-24blk-mq: move failure injection out of blk_mq_complete_requestChristoph Hellwig7-11/+23
Move the call to blk_should_fake_timeout out of blk_mq_complete_request and into the drivers, skipping call sites that are obvious error handlers, and remove the now superflous blk_mq_force_complete_rq helper. This ensures we don't keep injecting errors into completions that just terminate the Linux request after the hardware has been reset or the command has been aborted. Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-06-19Merge tag 'block-5.8-2020-06-19' of git://git.kernel.dk/linux-blockLinus Torvalds1-4/+4
Pull block fixes from Jens Axboe: - Use import_uuid() where appropriate (Andy) - bcache fixes (Coly, Mauricio, Zhiqiang) - blktrace sparse warnings fix (Jan) - blktrace concurrent setup fix (Luis) - blkdev_get use-after-free fix (Jason) - Ensure all blk-mq maps are updated (Weiping) - Loop invalidate bdev fix (Zheng) * tag 'block-5.8-2020-06-19' of git://git.kernel.dk/linux-block: block: make function 'kill_bdev' static loop: replace kill_bdev with invalidate_bdev partitions/ldm: Replace uuid_copy() with import_uuid() where it makes sense block: update hctx map when use multiple maps blktrace: Avoid sparse warnings when assigning q->blk_trace blktrace: break out of blktrace setup on concurrent calls block: Fix use-after-free in blkdev_get() trace/events/block.h: drop kernel-doc for dropped function parameter blk-mq: Remove redundant 'return' statement bcache: pr_info() format clean up in bcache_device_init() bcache: use delayed kworker fo asynchronous devices registration bcache: check and adjust logical block size for backing devices bcache: fix potential deadlock problem in btree_gc_coalesce
2020-06-19Merge tag 'ceph-for-5.8-rc2' of git://github.com/ceph/ceph-clientLinus Torvalds1-1/+3
Pull ceph fixes from Ilya Dryomov: "An important follow-up for replica reads support that went into -rc1 and two target_copy() fixups" * tag 'ceph-for-5.8-rc2' of git://github.com/ceph/ceph-client: libceph: don't omit used_replica in target_copy() libceph: don't omit recovery_deletes in target_copy() libceph: move away from global osd_req_flags
2020-06-18loop: replace kill_bdev with invalidate_bdevZheng Bin1-4/+4
When a filesystem is mounted on a loop device and on a loop ioctl LOOP_SET_STATUS64, because of kill_bdev, buffer_head mappings are getting destroyed. kill_bdev truncate_inode_pages truncate_inode_pages_range do_invalidatepage block_invalidatepage discard_buffer -->clear BH_Mapped flag sb_bread __bread_gfp bh = __getblk_gfp -->discard_buffer clear BH_Mapped flag __bread_slow submit_bh submit_bh_wbc BUG_ON(!buffer_mapped(bh)) --> hit this BUG_ON Fixes: 5db470e229e2 ("loop: drop caches if offset or block_size are changed") Signed-off-by: Zheng Bin <zhengbin13@huawei.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-06-16libceph: move away from global osd_req_flagsIlya Dryomov1-1/+3
osd_req_flags is overly general and doesn't suit its only user (read_from_replica option) well: - applying osd_req_flags in account_request() affects all OSD requests, including linger (i.e. watch and notify). However, linger requests should always go to the primary even though some of them are reads (e.g. notify has side effects but it is a read because it doesn't result in mutation on the OSDs). - calls to class methods that are reads are allowed to go to the replica, but most such calls issued for "rbd map" and/or exclusive lock transitions are requested to be resent to the primary via EAGAIN, doubling the latency. Get rid of global osd_req_flags and set read_from_replica flag only on specific OSD requests instead. Fixes: 8ad44d5e0d1e ("libceph: read_from_replica option") Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Jeff Layton <jlayton@kernel.org>
2020-06-15drbd: Replace zero-length array with flexible-arrayGustavo A. R. Silva2-5/+5
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://github.com/KSPP/linux/issues/21 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-06-15sched: Remove sched_set_*() return valuePeter Zijlstra1-3/+1
Ingo suggested that since the new sched_set_*() functions are implemented using the 'nocheck' variants, they really shouldn't ever fail, so remove the return value. Cc: axboe@kernel.dk Cc: daniel.lezcano@linaro.org Cc: sudeep.holla@arm.com Cc: airlied@redhat.com Cc: broonie@kernel.org Cc: paulmck@kernel.org Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Ingo Molnar <mingo@kernel.org>
2020-06-15sched,drbd: Convert to sched_set_fifo*()Peter Zijlstra1-2/+1
Because SCHED_FIFO is a broken scheduler model (see previous patches) take away the priority field, the kernel can't possibly make an informed decision. In this case, use fifo_low, because it only cares about being above SCHED_NORMAL. Effectively changes prio from 2 to 1. Cc: axboe@kernel.dk Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Ingo Molnar <mingo@kernel.org>
2020-06-13Merge tag 'kbuild-v5.8-2' of ↵Linus Torvalds2-17/+17
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: - fix build rules in binderfs sample - fix build errors when Kbuild recurses to the top Makefile - covert '---help---' in Kconfig to 'help' * tag 'kbuild-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: treewide: replace '---help---' in Kconfig files with 'help' kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables samples: binderfs: really compile this sample and fix build issues
2020-06-14treewide: replace '---help---' in Kconfig files with 'help'Masahiro Yamada2-17/+17
Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-06-11Merge tag 'block-5.8-2020-06-11' of git://git.kernel.dk/linux-blockLinus Torvalds3-3/+3
Pull block fixes from Jens Axboe: "Some followup fixes for this merge window. In particular: - Seqcount write missing preemption disable for stats (Ahmed) - blktrace fixes (Chaitanya) - Redundant initializations (Colin) - Various small NVMe fixes (Chaitanya, Christoph, Daniel, Max, Niklas, Rikard) - loop flag bug regression fix (Martijn) - blk-mq tagging fixes (Christoph, Ming)" * tag 'block-5.8-2020-06-11' of git://git.kernel.dk/linux-block: umem: remove redundant initialization of variable ret pktcdvd: remove redundant initialization of variable ret nvmet: fail outstanding host posted AEN req nvme-pci: use simple suspend when a HMB is enabled nvme-fc: don't call nvme_cleanup_cmd() for AENs nvmet-tcp: constify nvmet_tcp_ops nvme-tcp: constify nvme_tcp_mq_ops and nvme_tcp_admin_mq_ops nvme: do not call del_gendisk() on a disk that was never added blk-mq: fix blk_mq_all_tag_iter blk-mq: split out a __blk_mq_get_driver_tag helper blktrace: fix endianness for blk_log_remap() blktrace: fix endianness in get_pdu_int() blktrace: use errno instead of bi_status block: nr_sects_write(): Disable preemption on seqcount write block: remove the error argument to the block_bio_complete tracepoint loop: Fix wrong masking of status flags block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed
2020-06-11umem: remove redundant initialization of variable retColin Ian King1-1/+1
The variable ret is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Signed-off-by: Colin Ian King <colin.king@canonical.com> Addresses-Coverity: ("Unused value") Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-06-11pktcdvd: remove redundant initialization of variable retColin Ian King1-1/+1
The variable ret is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Signed-off-by: Colin Ian King <colin.king@canonical.com> Addresses-Coverity: ("Unused value") Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-06-09mm: reorder includes after introduction of linux/pgtable.hMike Rapoport1-1/+1
The replacement of <asm/pgrable.h> with <linux/pgtable.h> made the include of the latter in the middle of asm includes. Fix this up with the aid of the below script and manual adjustments here and there. import sys import re if len(sys.argv) is not 3: print "USAGE: %s <file> <header>" % (sys.argv[0]) sys.exit(1) hdr_to_move="#include <linux/%s>" % sys.argv[2] moved = False in_hdrs = False with open(sys.argv[1], "r") as f: lines = f.readlines() for _line in lines: line = _line.rstrip(' ') if line == hdr_to_move: continue if line.startswith("#include <linux/"): in_hdrs = True elif not moved and in_hdrs: moved = True print hdr_to_move print line Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200514170327.31389-4-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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