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2020-03-26ata: move ata_qc_complete_multiple() to libata-sata.cBartlomiej Zolnierkiewicz
* move ata_qc_complete_multiple() to libata-sata.c Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 32559 572 40 33171 8193 drivers/ata/libata-core.o after: 32162 572 40 32774 8006 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move sata_link_hardreset() to libata-sata.cBartlomiej Zolnierkiewicz
* move sata_link_hardreset() to libata-sata.c * add static inline for CONFIG_SATA_HOST=n case * make sata_set_spd_needed() static Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 32724 572 40 33336 8238 drivers/ata/libata-core.o after: 32559 572 40 33171 8193 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move sata_link_{debounce,resume}() to libata-sata.cBartlomiej Zolnierkiewicz
* move sata_link_{debounce,resume}() to libata-sata.c * add static inline for CONFIG_SATA_HOST=n case (only one, for sata_link_resume() is needed) Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 32816 572 40 33428 8294 drivers/ata/libata-core.o after: 32724 572 40 33336 8238 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move *sata_set_spd*() to libata-sata.cBartlomiej Zolnierkiewicz
* move *sata_set_spd*() to libata-sata.c * add static inlines for CONFIG_SATA_HOST=n case Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 32842 572 40 33458 82ae drivers/ata/libata-core.o after: 32812 572 40 33428 8290 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move sata_scr_*() to libata-sata.cBartlomiej Zolnierkiewicz
* move sata_scr_*() to libata-sata.c * add static inlines for CONFIG_SATA_HOST=n case Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 35642 572 40 36254 8d9e drivers/ata/libata-core.o 16607 18 0 16625 40f1 drivers/ata/libata-eh.o after: 32846 572 40 33458 82b2 drivers/ata/libata-core.o 16243 18 0 16261 3f85 drivers/ata/libata-eh.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: start separating SATA specific code from libata-core.cBartlomiej Zolnierkiewicz
Start separating SATA specific code from libata-core.c: * move following functions to libata-sata.c: - ata_tf_to_fis() - ata_tf_from_fis() - sata_link_scr_lpm() - ata_slave_link_init() - sata_lpm_ignore_phy_events() * group above functions together in <linux/libata.h> * include libata-sata.c in the build when CONFIG_SATA_HOST=y Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 37582 572 40 38194 9532 drivers/ata/libata-core.o after: 36762 572 40 37374 91fe drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: add CONFIG_SATA_HOST=n version of ata_ncq_enabled()Bartlomiej Zolnierkiewicz
When CONFIG_SATA_HOST=n there are no NCQ capable host drivers built so it is safe to hardwire ata_ncq_enabled() to always return zero. Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 37820 572 40 38432 9620 drivers/ata/libata-core.o 21040 105 576 21721 54d9 drivers/ata/libata-scsi.o 17405 18 0 17423 440f drivers/ata/libata-eh.o after: 37582 572 40 38194 9532 drivers/ata/libata-core.o 20702 105 576 21383 5387 drivers/ata/libata-scsi.o 17353 18 0 17371 43db drivers/ata/libata-eh.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: separate PATA timings code from libata-core.cBartlomiej Zolnierkiewicz
Separate PATA timings code from libata-core.c: * add PATA_TIMINGS config option and make corresponding PATA host drivers (and ATA ACPI code) select it * move following PATA timings code to libata-pata-timings.c: - ata_timing_quantize() - ata_timing_merge() - ata_timing_find_mode() - ata_timing_compute() * group above functions together in <linux/libata.h> * include libata-pata-timings.c in the build when PATA_TIMINGS config option is enabled * cover ata_timing_cycle2mode() with CONFIG_ATA_ACPI ifdef (it depends on code from libata-core.c and libata-pata-timings.c while its only user is ATA ACPI) Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 39688 573 40 40301 9d6d drivers/ata/libata-core.o after: 37820 572 40 38432 9620 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: optimize struct ata_force_param sizeBartlomiej Zolnierkiewicz
Optimize struct ata_force_param size by: - using u8 for cbl and spd_limit fields - using u16 for lflags field Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 41064 573 40 41677 a2cd drivers/ata/libata-core.o after: 40654 573 40 41267 a133 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: expose ncq_enable_prio sysfs attribute only on NCQ capable hostsBartlomiej Zolnierkiewicz
There is no point in exposing ncq_enable_prio sysfs attribute for devices on PATA and non-NCQ capable SATA hosts so: * remove dev_attr_ncq_prio_enable from ata_common_sdev_attrs[] * add ata_ncq_sdev_attrs[] * update ATA_NCQ_SHT() macro to use ata_ncq_sdev_attrs[] Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25clk: Pass correct arguments to __clk_hw_register_gate()Stephen Boyd
I copy/pasted these macros and forgot to update the argument names and where they're passed to. Fix it so that these macros make sense. Reported-by: Maxime Ripard <maxime@cerno.tech> Fixes: 194efb6e2667 ("clk: gate: Add support for specifying parents via DT/pointers") Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20200325022257.148244-1-sboyd@kernel.org Tested-by: Maxime Ripard <mripard@kernel.org>
2020-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix deadlock in bpf_send_signal() from Yonghong Song. 2) Fix off by one in kTLS offload of mlx5, from Tariq Toukan. 3) Add missing locking in iwlwifi mvm code, from Avraham Stern. 4) Fix MSG_WAITALL handling in rxrpc, from David Howells. 5) Need to hold RTNL mutex in tcindex_partial_destroy_work(), from Cong Wang. 6) Fix producer race condition in AF_PACKET, from Willem de Bruijn. 7) cls_route removes the wrong filter during change operations, from Cong Wang. 8) Reject unrecognized request flags in ethtool netlink code, from Michal Kubecek. 9) Need to keep MAC in reset until PHY is up in bcmgenet driver, from Doug Berger. 10) Don't leak ct zone template in act_ct during replace, from Paul Blakey. 11) Fix flushing of offloaded netfilter flowtable flows, also from Paul Blakey. 12) Fix throughput drop during tx backpressure in cxgb4, from Rahul Lakkireddy. 13) Don't let a non-NULL skb->dev leave the TCP stack, from Eric Dumazet. 14) TCP_QUEUE_SEQ socket option has to update tp->copied_seq as well, also from Eric Dumazet. 15) Restrict macsec to ethernet devices, from Willem de Bruijn. 16) Fix reference leak in some ethtool *_SET handlers, from Michal Kubecek. 17) Fix accidental disabling of MSI for some r8169 chips, from Heiner Kallweit. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (138 commits) net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build net: ena: Add PCI shutdown handler to allow safe kexec selftests/net/forwarding: define libs as TEST_PROGS_EXTENDED selftests/net: add missing tests to Makefile r8169: re-enable MSI on RTL8168c net: phy: mdio-bcm-unimac: Fix clock handling cxgb4/ptp: pass the sign of offset delta in FW CMD net: dsa: tag_8021q: replace dsa_8021q_remove_header with __skb_vlan_pop net: cbs: Fix software cbs to consider packet sending time net/mlx5e: Do not recover from a non-fatal syndrome net/mlx5e: Fix ICOSQ recovery flow with Striding RQ net/mlx5e: Fix missing reset of SW metadata in Striding RQ reset net/mlx5e: Enhance ICOSQ WQE info fields net/mlx5_core: Set IB capability mask1 to fix ib_srpt connection failure selftests: netfilter: add nfqueue test case netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress netfilter: nft_fwd_netdev: validate family and chain type netfilter: nft_set_rbtree: Detect partial overlaps on insertion netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start() netfilter: nft_set_pipapo: Separate partial and complete overlap cases on insertion ...
2020-03-25net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} buildPablo Neira Ayuso
net/netfilter/nft_fwd_netdev.c: In function ‘nft_fwd_netdev_eval’: net/netfilter/nft_fwd_netdev.c:32:10: error: ‘struct sk_buff’ has no member named ‘tc_redirected’ pkt->skb->tc_redirected = 1; ^~ net/netfilter/nft_fwd_netdev.c:33:10: error: ‘struct sk_buff’ has no member named ‘tc_from_ingress’ pkt->skb->tc_from_ingress = 1; ^~ To avoid a direct dependency with tc actions from netfilter, wrap the redirect bits around CONFIG_NET_REDIRECT and move helpers to include/linux/skbuff.h. Turn on this toggle from the ifb driver, the only existing client of these bits in the tree. This patch adds skb_set_redirected() that sets on the redirected bit on the skbuff, it specifies if the packet was redirect from ingress and resets the timestamp (timestamp reset was originally missing in the netfilter bugfix). Fixes: bcfabee1afd99484 ("netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress") Reported-by: noreply@ellerman.id.au Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25block: move the part_stat* helpers from genhd.h to a new headerChristoph Hellwig
These macros are just used by a few files. Move them out of genhd.h, which is included everywhere into a new standalone header. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25block: move block layer internals out of include/linux/genhd.hChristoph Hellwig
None of this needs to be exposed to drivers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25block: move guard_bio_eod to bio.cChristoph Hellwig
This is bio layer functionality and not related to buffer heads. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25block: mark part_in_flight and part_in_flight_rw staticChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25block: mark block_depr staticChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25block/diskstats: replace time_in_queue with sum of request timesKonstantin Khlebnikov
Column "time_in_queue" in diskstats is supposed to show total waiting time of all requests. I.e. value should be equal to the sum of times from other columns. But this is not true, because column "time_in_queue" is counted separately in jiffies rather than in nanoseconds as other times. This patch removes redundant counter for "time_in_queue" and shows total time of read, write, discard and flush requests. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25block/diskstats: accumulate all per-cpu counters in one passKonstantin Khlebnikov
Reading /proc/diskstats iterates over all cpus for summing each field. It's faster to sum all fields in one pass. Hammering /proc/diskstats with fio shows 2x performance improvement: fio --name=test --numjobs=$JOBS --filename=/proc/diskstats \ --size=1k --bs=1k --fallocate=none --create_on_open=1 \ --time_based=1 --runtime=10 --invalidate=0 --group_report JOBS=1 JOBS=10 Before: 7k iops 64k iops After: 18k iops 120k iops Also this way code is more compact: add/remove: 1/0 grow/shrink: 0/2 up/down: 194/-1540 (-1346) Function old new delta part_stat_read_all - 194 +194 diskstats_show 1344 631 -713 part_stat_show 1219 392 -827 Total: Before=14966947, After=14965601, chg -0.01% Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25block/diskstats: more accurate approximation of io_ticks for slow disksKonstantin Khlebnikov
Currently io_ticks is approximated by adding one at each start and end of requests if jiffies counter has changed. This works perfectly for requests shorter than a jiffy or if one of requests starts/ends at each jiffy. If disk executes just one request at a time and they are longer than two jiffies then only first and last jiffies will be accounted. Fix is simple: at the end of request add up into io_ticks jiffies passed since last update rather than just one jiffy. Example: common HDD executes random read 4k requests around 12ms. fio --name=test --filename=/dev/sdb --rw=randread --direct=1 --runtime=30 & iostat -x 10 sdb Note changes of iostat's "%util" 8,43% -> 99,99% before/after patch: Before: Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sdb 0,00 0,00 82,60 0,00 330,40 0,00 8,00 0,96 12,09 12,09 0,00 1,02 8,43 After: Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sdb 0,00 0,00 82,50 0,00 330,00 0,00 8,00 1,00 12,10 12,10 0,00 12,12 99,99 Now io_ticks does not loose time between start and end of requests, but for queue-depth > 1 some I/O time between adjacent starts might be lost. For load estimation "%util" is not as useful as average queue length, but it clearly shows how often disk queue is completely empty. Fixes: 5b18b5a73760 ("block: delete part_round_stats and switch to less precise counting") Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25Merge branch 'x86/cpu' into perf/core, to resolve conflictIngo Molnar
Conflicts: arch/x86/events/intel/uncore.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-03-25cpu/hotplug: Hide cpu_up/down()Qais Yousef
Use separate functions for the device core to bring a CPU up and down. Users outside the device core must use add/remove_cpu() which will take care of extra housekeeping work like keeping sysfs in sync. Make cpu_up/down() static and replace the extra layer of indirection. [ tglx: Removed the extra wrapper functions and adjusted function names ] Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200323135110.30522-18-qais.yousef@arm.com
2020-03-25cpu/hotplug: Move bringup of secondary CPUs out of smp_init()Qais Yousef
This is the last direct user of cpu_up() before it can become an internal implementation detail of the cpu subsystem. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200323135110.30522-17-qais.yousef@arm.com
2020-03-25cpu/hotplug: Provide bringup_hibernate_cpu()Qais Yousef
arm64 uses cpu_up() in the resume from hibernation code to ensure that the CPU on which the system hibernated is online. Provide a core function for this. [ tglx: Split out from the combo arm64 patch ] Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/20200323135110.30522-9-qais.yousef@arm.com
2020-03-25cpu/hotplug: Create a new function to shutdown nonboot cpusQais Yousef
This function will be used later in machine_shutdown() for some architectures. disable_nonboot_cpus() is not safe to use when doing machine_down(), because it relies on freeze_secondary_cpus() which in turn is a suspend/resume related freeze and could abort if the logic detects any pending activities that can prevent finishing the offlining process. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200323135110.30522-3-qais.yousef@arm.com
2020-03-25cpu/hotplug: Add new {add,remove}_cpu() functionsQais Yousef
The new functions use device_{online,offline}() which are userspace safe. This is in preparation to move cpu_{up, down} kernel users to use a safer interface that is not racy with userspace. Suggested-by: "Paul E. McKenney" <paulmck@kernel.org> Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Paul E. McKenney <paulmck@kernel.org> Link: https://lkml.kernel.org/r/20200323135110.30522-2-qais.yousef@arm.com
2020-03-25ieee80211: fix HE SPR size calculationJohannes Berg
The he_sr_control field is just a u8, so le32_to_cpu() shouldn't be applied to it; this was evidently copied from ieee80211_he_oper_size(). Fix it, and also adjust the type of the local variable. Fixes: ef11a931bd1c ("mac80211: HE: add Spatial Reuse element parsing support") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200325090918.dfe483b49e06.Ia53622f23b2610a2ae6ea39a199866196fe946c1@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-25PM / devfreq: Get rid of some doc warningsMauro Carvalho Chehab
Mark "void *data" as literal, in order to avoid those doc warnings: ./include/linux/devfreq.h:156: WARNING: Inline emphasis start-string without end-string. ./include/linux/devfreq.h:259: WARNING: Inline emphasis start-string without end-string. ./include/linux/devfreq.h:279: WARNING: Inline emphasis start-string without end-string. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-03-25PM / devfreq: Remove unneeded extern keywordChanwoo Choi
Remove unneeded extern keyword from devfreq-related header file and adjust the indentation of function parameter to keep the consistency in header file Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-03-24net: dsa: tag_8021q: replace dsa_8021q_remove_header with __skb_vlan_popVladimir Oltean
Not only did this wheel did not need reinventing, but there is also an issue with it: It doesn't remove the VLAN header in a way that preserves the L2 payload checksum when that is being provided by the DSA master hw. It should recalculate checksum both for the push, before removing the header, and for the pull afterwards. But the current implementation is quite dizzying, with pulls followed immediately afterwards by pushes, the memmove is done before the push, etc. This makes a DSA master with RX checksumming offload to print stack traces with the infamous 'hw csum failure' message. So remove the dsa_8021q_remove_header function and replace it with something that actually works with inet checksumming. Fixes: d461933638ae ("net: dsa: tag_8021q: Create helper function for removing VLAN header") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-24x86/devicetable: Move x86 specific macro out of generic codeThomas Gleixner
There is no reason that this gunk is in a generic header file. The wildcard defines need to stay as they are required by file2alias. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lkml.kernel.org/r/20200320131508.736205164@linutronix.de
2020-03-24Merge branch 'regulator-5.7' into regulator-nextMark Brown
2020-03-24regulator: qcom_smd: Add pmi8994 regulator supportBjorn Andersson
The pmi8994 is commonly found on MSM8996 based devices, such as the Dragonboard 820c, where it supplies power to a number of LDOs on the primary PMIC. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20200324041424.518160-1-bjorn.andersson@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2020-03-24block: move the various x86 Unix label formats out of genhd.hChristoph Hellwig
All these are just used in block/partitions/msdos.c, so move them out of the genhd.h driver included by every driver. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-24partitions/msdos: remove LINUX_SWAP_PARTITIONChristoph Hellwig
Just always use NEW_SOLARIS_X86_PARTITION and explain the situation, as that is less confusing than two names for a single value. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-24block: move the *_PARTITION enum out of genhd.hChristoph Hellwig
The enum containing the *_PARTITION symbolic names is only relevant for the partition parser. More specifically most values are MSDOS partition table system indicators and thus should go straight into msdos.c. One value is only used by the sun partition parser, and the sun and sgi partition parsers use the same value as the x86 Linux RAID indicator to also indicate RAID autodetection. Duplicate them in sun.c and sgi.c given that the different partition types use entirely different values otherwise. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-24block: move struct partition out of genhd.hChristoph Hellwig
struct partition is the on-disk format of a MSDOS partition table entry. Move it out of genhd.h into a new msdos_partition.h header and give it a msdos_ prefix to avoid confusion. Also move the magic number from block/partitions/msdos.h to the new header so that it can be used by the SCSI drivers looking at the DOS partition tables. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-24block: cleanup how md_autodetect_dev is calledChristoph Hellwig
Add a new include/linux/raid/detect.h header to declare the md_autodetect_dev prototype which can be shared between md and the partition code. Then use IS_BUILTIN to call it instead of the ifdef magic. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-24block: unexport read_dev_sector and put_dev_sectorChristoph Hellwig
read_dev_sector and put_dev_sector are now only used by the partition parsing code. Remove the export for read_dev_sector and merge it into the only caller. Clean the mess up a bit by using goto labels and the SECTOR_SHIFT constant. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-24block: remove alloc_part_info and free_part_infoChristoph Hellwig
There isn't any good reason not to simply open code the allocation and freeing of the partition_meta_info structure. Especially as one of the branches in alloc_part_info is entirely dead code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-24block: move sysfs methods shared by disks and partitions to genhd.cChristoph Hellwig
Move the sysfs _show methods that are used both on the full disk and partition nodes to genhd.c instead of hiding them in the partitioning code. Also move the declaration for these methods to block/blk.h so that we don't expose them to drivers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-24block: remove __bdevnameChristoph Hellwig
There is no good reason for __bdevname to exist. Just open code printing the string in the callers. For three of them the format string can be trivially merged into existing printk statements, and in init/do_mounts.c we can at least do the scnprintf once at the start of the function, and unconditional of CONFIG_BLOCK to make the output for tiny configfs a little more helpful. Acked-by: Theodore Ts'o <tytso@mit.edu> # for ext4 Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-24Merge branch 'irq/gic-v4.1' into irq/irqchip-nextMarc Zyngier
Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-03-24staging: most: move core files out of the staging areaChristian Gromm
This patch moves the core module to the /drivers/most directory and makes all necessary changes in order to not break the build. Signed-off-by: Christian Gromm <christian.gromm@microchip.com> Link: https://lore.kernel.org/r/1583845362-26707-2-git-send-email-christian.gromm@microchip.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-24irqchip/gic-v4.1: Add VSGI property setupMarc Zyngier
Add the SGI configuration entry point for KVM to use. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Link: https://lore.kernel.org/r/20200304203330.4967-16-maz@kernel.org
2020-03-24irqchip/gic-v4.1: Add VSGI allocation/teardownMarc Zyngier
Allocate per-VPE SGIs when initializing the GIC-specific part of the VPE data structure. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Link: https://lore.kernel.org/r/20200304203330.4967-15-maz@kernel.org
2020-03-24irqchip/gic-v4.1: Move doorbell management to the GICv4 abstraction layerMarc Zyngier
In order to hide some of the differences between v4.0 and v4.1, move the doorbell management out of the KVM code, and into the GICv4-specific layer. This allows the calling code to ask for the doorbell when blocking, and otherwise to leave the doorbell permanently disabled. This matches the v4.1 code perfectly, and only results in a minor refactoring of the v4.0 code. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Link: https://lore.kernel.org/r/20200304203330.4967-14-maz@kernel.org
2020-03-24irqchip/gic-v4.1: Plumb set_vcpu_affinity SGI callbacksMarc Zyngier
Just like for vLPIs, there is some configuration information that cannot be directly communicated through the normal irqchip API, and we have to use our good old friend set_vcpu_affinity as a side-band communication mechanism. This is used to configure group and priority for a given vSGI. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Link: https://lore.kernel.org/r/20200304203330.4967-13-maz@kernel.org
2020-03-24irqchip/gic-v4.1: Plumb get/set_irqchip_state SGI callbacksMarc Zyngier
To implement the get/set_irqchip_state callbacks (limited to the PENDING state), we have to use a particular set of hacks: - Reading the pending state is done by using a pair of new redistributor registers (GICR_VSGIR, GICR_VSGIPENDR), which allow the 16 interrupts state to be retrieved. - Setting the pending state is done by generating it as we'd otherwise do for a guest (writing to GITS_SGIR). - Clearing the pending state is done by emitting a VSGI command with the "clear" bit set. This requires some interesting locking though: - When talking to the redistributor, we must make sure that the VPE affinity doesn't change, hence taking the VPE lock. - At the same time, we must ensure that nobody accesses the same redistributor's GICR_VSGIR registers for a different VPE, which would corrupt the reading of the pending bits. We thus take the per-RD spinlock. Much fun. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Link: https://lore.kernel.org/r/20200304203330.4967-12-maz@kernel.org
generated by cgit (git 2.34.1) at 2025-09-11 05:29:46 +0000