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2020-05-27ASoC: SOF: Intel: BYT: mask BUSY or DONE interrupts in handlerPierre-Louis Bossart
The DSP may send the same interrupt multiple times before it's handled in the interrupt thread. Rather than masking it in the thread, mask it in the handler directly. This patch also removes useless checks that cannot happen, and masks that are set don't need to be re-tested. Suggested-by: Keyon Jie <yang.jie@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> BugLink: https://github.com/thesofproject/linux/issues/1492 Link: https://lore.kernel.org/r/20200526203640.25980-8-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-27ASoC: SOF: Intel: BYT: add .remove opRanjani Sridharan
Add .remove op that disables interrupts and reset the DSP for BYT and CHT platforms. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Link: https://lore.kernel.org/r/20200526203640.25980-7-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-27ASoC: SOF: ipc: ignore DSP replies received when they are not expectedRanjani Sridharan
We currently ignore the reply messages from the DSP when they are not expected but call it out as an error. Change the error message to a debug message. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Link: https://lore.kernel.org/r/20200526203640.25980-6-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-27ASoC: Intel: byt/cht: add .pm_opsPierre-Louis Bossart
Add required .pm_ops to support suspend/resume on baytrail/cherrytrail machines. This .pm_ops is conditionally-added to avoid impacting the legacy driver where power management is handled differently. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Link: https://lore.kernel.org/r/20200526203640.25980-5-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-27ASoC: Intel: bytcr_rt5640/51: remove .ignore_suspendPierre-Louis Bossart
Low-power playback was never enabled on Baytrail devices, remove what looks like copy/paste from other machine drivers which were never submitted upstream. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Link: https://lore.kernel.org/r/20200526203640.25980-4-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-27ASoC: SOF: pm: handle resume on legacy Intel platformsRanjani Sridharan
Add new case when set_power_state() is not supported, e.g. for Intel Baytrail/Cherrytrail legacy platforms. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Link: https://lore.kernel.org/r/20200526203640.25980-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-27ASoC: SOF: Intel: byt: Add PM callbacksRanjani Sridharan
Add the PM callbacks for BYT/CHT platforms. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Link: https://lore.kernel.org/r/20200526203640.25980-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-27USB: serial: ch341: fix lockup of devices with limited prescalerJohan Hovold
Michael Hanselmann reports that [a] subset of all CH341 devices stop responding to bulk transfers, usually after the third byte, when the highest prescaler bit (0b100) is set. There is one exception, namely a prescaler of exactly 0b111 (fact=1, ps=3). Fix this by forcing a lower base clock (fact = 0) whenever needed. This specifically makes the standard rates 110, 134 and 200 bps work again with these devices. Fixes: 35714565089e ("USB: serial: ch341: reimplement line-speed handling") Cc: stable <stable@vger.kernel.org> # 5.5 Reported-by: Michael Hanselmann <public@hansmi.ch> Link: https://lore.kernel.org/r/20200514141743.GE25962@localhost Signed-off-by: Johan Hovold <johan@kernel.org>
2020-05-27USB: serial: ch341: add basis for quirk detectionMichael Hanselmann
A subset of CH341 devices does not support all features, namely the prescaler is limited to a reduced precision and there is no support for sending a RS232 break condition. This patch adds a detection function which will be extended to set quirk flags as they're implemented. The author's affected device has an imprint of "340" on the turquoise-colored plug, but not all such devices appear to be affected. Signed-off-by: Michael Hanselmann <public@hansmi.ch> Link: https://lore.kernel.org/r/1e1ae0da6082bb528a44ef323d4e1d3733d38858.1585697281.git.public@hansmi.ch [ johan: use long type for quirks; rephrase and use port device for messages; handle short reads; set quirk flags directly in helper function ] Cc: stable <stable@vger.kernel.org> # 5.5 Signed-off-by: Johan Hovold <johan@kernel.org>
2020-05-27iommu/sun50i: Constify sun50i_iommu_opsRikard Falkeborn
The struct sun50i_iommu_ops is not modified and can be made const to allow the compiler to put it in read-only memory. Before: text data bss dec hex filename 14358 2501 64 16923 421b drivers/iommu/sun50i-iommu.o After: text data bss dec hex filename 14726 2117 64 16907 420b drivers/iommu/sun50i-iommu.o Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20200525214958.30015-3-rikard.falkeborn@gmail.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-27iommu/hyper-v: Constify hyperv_ir_domain_opsRikard Falkeborn
The struct hyperv_ir_domain_ops is not modified and can be made const to allow the compiler to put it in read-only memory. Before: text data bss dec hex filename 2916 1180 1120 5216 1460 drivers/iommu/hyperv-iommu.o After: text data bss dec hex filename 3044 1052 1120 5216 1460 drivers/iommu/hyperv-iommu.o Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Acked-by: Wei Liu <wei.liu@kernel.org> Link: https://lore.kernel.org/r/20200525214958.30015-2-rikard.falkeborn@gmail.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-27iommu/vt-d: Use pci_ats_supported()Jean-Philippe Brucker
The pci_ats_supported() helper checks if a device supports ATS and is allowed to use it. By checking the ATS capability it also integrates the pci_ats_disabled() check from pci_ats_init(). Simplify the vt-d checks. Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Acked-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20200520152201.3309416-5-jean-philippe@linaro.org Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-27iommu/arm-smmu-v3: Use pci_ats_supported()Jean-Philippe Brucker
The new pci_ats_supported() function checks if a device supports ATS and is allowed to use it. Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20200520152201.3309416-4-jean-philippe@linaro.org Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-27iommu/amd: Use pci_ats_supported()Jean-Philippe Brucker
The pci_ats_supported() function checks if a device supports ATS and is allowed to use it. In addition to checking that the device has an ATS capability and that the global pci=noats is not set (pci_ats_disabled()), it also checks if a device is untrusted. A device is untrusted if it is plugged into an external-facing port such as Thunderbolt and could be spoofing an existing device to exploit weaknesses in the IOMMU configuration. By calling pci_ats_supported() we keep DTE[I]=0 for untrusted devices and abort transactions with Pretranslated Addresses. Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Reviewed-by: Joerg Roedel <jroedel@suse.de> Link: https://lore.kernel.org/r/20200520152201.3309416-3-jean-philippe@linaro.org Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-27PCI/ATS: Only enable ATS for trusted devicesJean-Philippe Brucker
Add pci_ats_supported(), which checks whether a device has an ATS capability, and whether it is trusted. A device is untrusted if it is plugged into an external-facing port such as Thunderbolt and could be spoofing an existing device to exploit weaknesses in the IOMMU configuration. PCIe ATS is one such weaknesses since it allows endpoints to cache IOMMU translations and emit transactions with 'Translated' Address Type (10b) that partially bypass the IOMMU translation. The SMMUv3 and VT-d IOMMU drivers already disallow ATS and transactions with 'Translated' Address Type for untrusted devices. Add the check to pci_enable_ats() to let other drivers (AMD IOMMU for now) benefit from it. By checking ats_cap, the pci_ats_supported() helper also returns whether ATS was globally disabled with pci=noats, and could later include more things, for example whether the whole PCIe hierarchy down to the endpoint supports ATS. Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Reviewed-by: Joerg Roedel <jroedel@suse.de> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20200520152201.3309416-2-jean-philippe@linaro.org Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-27ASoC: dapm: Move dai_link widgets to runtime to fix use after freeCharles Keepax
The newly added CODEC to CODEC DAI link widget pointers in snd_soc_dai_link are better placed in snd_soc_pcm_runtime. snd_soc_dai_link is really intended for static configuration of the DAI, and the runtime for dynamic data. The snd_soc_dai_link structures are not destroyed if the card is unbound. The widgets are cleared up on unbind, however if the card is rebound as the snd_soc_dai_link structures are reused these pointers will be left at their old values, causing access to freed memory. Fixes: 595571cca4de ("ASoC: dapm: Fix regression introducing multiple copies of DAI widgets") Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20200526161930.30759-1-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-27staging: vchiq: Get rid of VCHIQ_SERVICE_OPENEND callback reasonNicolas Saenz Julienne
Nobody uses it and it's routinely discarded in vchi. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-11-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27staging: vchiq: move vchiq_release_message() into vchiqNicolas Saenz Julienne
For messages with a reason different from VCHIQ_MESSAGE_AVAILABLE the responsibility for releasing them is kept in vchi, in other words, services don't need to worry about it. As we're trying to unify vchi and vchiq, move the release code into vchiq. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-10-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27staging: vchi: Get rid of C++ guardsNicolas Saenz Julienne
This is an include only used by the Linux kernel, so no need to worry about C++ compatibility. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-9-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27staging: vchi: Get rid of not implemented function declarationsNicolas Saenz Julienne
They don't exist, they have no users, get rid of them. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-8-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27staging: vchi: Get rid of vchiq_status_to_vchi()Nicolas Saenz Julienne
vchiq functions return an enum and vchi's ints. Those are compatible, no need to explicitly cast them. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-7-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27staging: vchi: Get rid of vchi_service_set_option()Nicolas Saenz Julienne
There are no users for that function. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-6-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27staging: vchi: Merge vchi_msg_queue() into vchi_queue_kernel_message()Nicolas Saenz Julienne
There are no gains from that extra indirection level. Also, get rid of the function description, the whole file will disappear soon. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-5-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27staging: vchiq: Move copy callback handling into vchiqNicolas Saenz Julienne
All vchi users use the kernel variant of the copy callback. The only user for the user space variant of the copy callback is in the ioctl implementation. So move all this copying logic into vchiq, and expose a new function that explicitly passes kernel messages. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-4-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27staging: vchi: Get rid of vchi_queue_user_message()Nicolas Saenz Julienne
The function has no users. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-3-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27staging: vchi: Get rid of vchi_service_destroy()Nicolas Saenz Julienne
The function has no users. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200527115400.31391-2-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27MIPS: Loongson64: select NO_EXCEPT_FILLJiaxun Yang
Loongson64 load kernel at 0x82000000 and allocate exception vectors by ebase. So we don't need to reserve space for exception vectors at head of kernel. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-05-27arm64/cpufeature: Add get_arm64_ftr_reg_nowarn()Anshuman Khandual
There is no way to proceed when requested register could not be searched in arm64_ftr_reg[]. Requesting for a non present register would be an error as well. Hence lets just WARN_ON() when search fails in get_arm64_ftr_reg() rather than checking for return value and doing a BUG_ON() instead in some individual callers. But there are also caller instances that dont error out when register search fails. Add a new helper get_arm64_ftr_reg_nowarn() for such cases. Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Mark Brown <broonie@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/1590573876-19120-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2020-05-27block: blk-crypto-fallback: remove redundant initialization of variable errColin Ian King
The variable err 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> Reviewed-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Satya Tangirala <satyat@google.com> Addresses-Coverity: ("Unused value") Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27HID: multitouch: Remove MT_CLS_WIN_8_DUALKai-Heng Feng
After commit c23e2043d5f7 ("HID: multitouch: do not filter mice nodes"), MT_CLS_WIN_8 also supports mouse nodes, hence make MT_CLS_WIN_8_DUAL redundant. Remove MT_CLS_WIN_8_DUAL accordingly. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2020-05-27netfilter: nf_conntrack_pptp: fix compilation warning with W=1 buildPablo Neira Ayuso
>> include/linux/netfilter/nf_conntrack_pptp.h:13:20: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] extern const char *const pptp_msg_name(u_int16_t msg); ^~~~~~ Reported-by: kbuild test robot <lkp@intel.com> Fixes: 4c559f15efcc ("netfilter: nf_conntrack_pptp: prevent buffer overflows in debug code") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-05-27netfilter: conntrack: comparison of unsigned in cthelper confirmationPablo Neira Ayuso
net/netfilter/nf_conntrack_core.c: In function nf_confirm_cthelper: net/netfilter/nf_conntrack_core.c:2117:15: warning: comparison of unsigned expression in < 0 is always false [-Wtype-limits] 2117 | if (protoff < 0 || (frag_off & htons(~0x7)) != 0) | ^ ipv6_skip_exthdr() returns a signed integer. Reported-by: Colin Ian King <colin.king@canonical.com> Fixes: 703acd70f249 ("netfilter: nfnetlink_cthelper: unbreak userspace helper support") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-05-27netfilter: conntrack: Pass value of ctinfo to __nf_conntrack_updateNathan Chancellor
Clang warns: net/netfilter/nf_conntrack_core.c:2068:21: warning: variable 'ctinfo' is uninitialized when used here [-Wuninitialized] nf_ct_set(skb, ct, ctinfo); ^~~~~~ net/netfilter/nf_conntrack_core.c:2024:2: note: variable 'ctinfo' is declared here enum ip_conntrack_info ctinfo; ^ 1 warning generated. nf_conntrack_update was split up into nf_conntrack_update and __nf_conntrack_update, where the assignment of ctinfo is in nf_conntrack_update but it is used in __nf_conntrack_update. Pass the value of ctinfo from nf_conntrack_update to __nf_conntrack_update so that uninitialized memory is not used and everything works properly. Fixes: ee04805ff54a ("netfilter: conntrack: make conntrack userspace helpers work again") Link: https://github.com/ClangBuiltLinux/linux/issues/1039 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-05-27block: reduce part_stat_lock() scopeChristoph Hellwig
We only need the stats lock (aka preempt_disable()) for updating the states, not for looking up or dropping the hd_struct reference. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27block: use __this_cpu_add() instead of access by smp_processor_id()Konstantin Khlebnikov
Most architectures have fast path to access percpu for current cpu. The required preempt_disable() is provided by part_stat_lock(). [hch: rebased] Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27block: remove rcu_read_lock() from part_stat_lock()Konstantin Khlebnikov
The RCU lock is required only in disk_map_sector_rcu() to lookup the partition. After that request holds reference to related hd_struct. Replace get_cpu() with preempt_disable() - returned cpu index is unused. [hch: rebased] Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27block: add a blk_account_io_merge_bio helperKonstantin Khlebnikov
Move the non-"new_io" branch of blk_account_io_start() into separate function. Fix merge accounting for discards (they were counted as write merges). The new blk_account_io_merge_bio() doesn't call update_io_ticks() unlike blk_account_io_start(), as there is no reason for that. [hch: rebased] Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27block: account merge of two requestsKonstantin Khlebnikov
Also rename blk_account_io_merge() into blk_account_io_merge_request() to distinguish it from merging request and bio. [hch: rebased] Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27block: always use a percpu variable for disk statsChristoph Hellwig
percpu variables have a perfectly fine working stub implementation for UP kernels, so use that. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27block: move update_io_ticks to blk-core.cChristoph Hellwig
All callers are in blk-core.c, so move update_io_ticks over. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27block: remove generic_{start,end}_io_acctChristoph Hellwig
Remove these now unused functions. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27zram: nvdimm: use bio_{start,end}_io_acct and disk_{start,end}_io_acctChristoph Hellwig
Switch zram to use the nicer bio accounting helpers, and as part of that ensure each bio is counted as a single I/O request. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27nvdimm: use bio_{start,end}_io_acctChristoph Hellwig
Switch dm to use the nicer bio accounting helpers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27dm: use bio_{start,end}_io_acctChristoph Hellwig
Switch dm to use the nicer bio accounting helpers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27bcache: use bio_{start,end}_io_acctChristoph Hellwig
Switch bcache to use the nicer bio accounting helpers, and call the routines where we also sample the start time to give coherent accounting results. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Acked-by: Coly Li <colyli@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27lightnvm/pblk: use bio_{start,end}_io_acctChristoph Hellwig
Switch rsxx to use the nicer bio accounting helpers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27rsxx: use bio_{start,end}_io_acctChristoph Hellwig
Switch rsxx to use the nicer bio accounting helpers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27drbd: use bio_{start,end}_io_acctChristoph Hellwig
Switch drbd to use the nicer bio accounting helpers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27block: add disk/bio-based accounting helpersChristoph Hellwig
Add two new helpers to simplify I/O accounting for bio based drivers. Currently these drivers use the generic_start_io_acct and generic_end_io_acct helpers which have very cumbersome calling conventions, don't actually return the time they started accounting, and try to deal with accounting for partitions, which can't happen for bio based drivers. The new helpers will be used to subsequently replace uses of the old helpers. The main API is the bio based wrappes in blkdev.h, but for zram which wants to account rw_page based I/O lower level routines are provided as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-27bcache: configure the asynchronous registertion to be experimentalColy Li
In order to avoid the experimental async registration interface to be treated as new kernel ABI for common users, this patch makes it as an experimental kernel configure BCACHE_ASYNC_REGISTRAION. This interface is for extreme large cached data situation, to make sure the bcache device can always created without the udev timeout issue. For normal users the async or sync registration does not make difference. In future when we decide to use the asynchronous registration as default behavior, this experimental interface may be removed. Signed-off-by: Coly Li <colyli@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
generated by cgit (git 2.34.1) at 2025-09-30 20:55:41 +0000