- 19 8月, 2015 3 次提交
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由 Jon Derrick 提交于
Controllers can perform optional subsystem resets as introduced in NVMe 1.1. This patch adds an IOCTL to trigger the subsystem reset by writing "NVMe" to the NSSR register. Signed-off-by: NJon Derrick <jonathan.derrick@intel.com> Acked-by: NKeith Busch <keith.busch@intel.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Keith Busch 提交于
Controllers part of an NVMe subsystem may be reset by any other controller in the subsystem. If the device is capable of subsystem resets, this patch adds detection for such events and performs appropriate controller initialization upon subsystem reset detection. The register bit is a RW1C type, so the driver needs to write a 1 to the status bit to clear the subsystem reset occured bit during initialization. Signed-off-by: NKeith Busch <keith.busch@intel.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Matias Bjørling 提交于
The logic in nvme_dev_add to enumerate namespaces was moved to nvme_dev_scan. When moved, the nn variable is no longer used. This patch removes it. Fixes: a5768aa8i ("NVMe: Automatic namespace rescan") Signed-off-by: NMatias Bjørling <m@bjorling.me> Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 18 8月, 2015 1 次提交
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由 Keith Busch 提交于
This sets the queue's max segment size to match the device's capabilities. The default of 128 is usable until a device's transfer capability exceeds 512k, assuming a device page size of 4k. Many nvme devices exceed that transfer limit, so this lets the block layer know what kind of commands it to allow to form rather than unnecessarily split them. One additional segment is added to account for a transfer that may start in the middle of a page. Signed-off-by: NKeith Busch <keith.busch@intel.com> Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 17 8月, 2015 10 次提交
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由 Markus Pargmann 提交于
The flags variable is used as u32 variable. This patch changes the type to be u32. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Markus Pargmann 提交于
This patch renames functions so that it is clear what the function does. Otherwise it is not directly understandable what for example 'do_it' means. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Markus Pargmann 提交于
Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Markus Pargmann 提交于
Add some debugfs files that help to understand the internal state of NBD. This exports the different sizes, flags, tasks and so on. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Markus Pargmann 提交于
This patch uses nbd->task_recv to determine the value of the previously used variable 'pid' for sysfs. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Markus Pargmann 提交于
This message was a warning without a reason. This patch moves it into nbd_clear_que and transforms it to a debug message. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Markus Pargmann 提交于
Instead of a variable 'harderror' we can simply try to correctly propagate errors to the userspace. This patch removes the harderror variable and passes errors through error pointers and nbd_do_it back to the userspace. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Markus Pargmann 提交于
This patch restructures sock_shutdown to avoid having the main code path in an if block. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Markus Pargmann 提交于
Move the conditional lock from sock_shutdown into the surrounding code. Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Markus Pargmann 提交于
At the moment the nbd timeout just detects hanging tcp operations. This is not enough to detect a hanging or bad connection as expected of a timeout. This patch redesigns the timeout detection to include some more cases. The timeout is now in relation to replies from the server. If the server does not send replies within the timeout the connection will be shut down. The patch adds a continous timer 'timeout_timer' that is setup in one of two cases: - The request list is empty and we are sending the first request out to the server. We want to have a reply within the given timeout, otherwise we consider the connection to be dead. - A server response was received. This means the server is still communicating with us. The timer is reset to the timeout value. The timer is not stopped if the list becomes empty. It will just trigger a timeout which will directly leave the handling routine again as the request list is empty. The whole patch does not use any additional explicit locking. The list_empty() calls are safe to be used concurrently. The timer is locked internally as we just use mod_timer and del_timer_sync(). The patch is based on the idea of Michal Belczyk with a previous different implementation. Cc: Michal Belczyk <belczyk@bsd.krakow.pl> Cc: Hermann Lauer <Hermann.Lauer@iwr.uni-heidelberg.de> Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de> Tested-by: NHermann Lauer <Hermann.Lauer@iwr.uni-heidelberg.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 22 7月, 2015 1 次提交
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由 Jon Derrick 提交于
Uses div_u64 for u64 division and round_down, a bitwise operation, instead of rounddown, which uses a modulus. Signed-off-by: NJon Derrick <jonathan.derrick@intel.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 21 7月, 2015 2 次提交
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由 Jon Derrick 提交于
Some controllers have a controller-side memory buffer available for use for submissions, completions, lists, or data. If a CMB is available, the entire CMB will be ioremapped and it will attempt to map the IO SQes onto the CMB. The queues will be shrunk as needed. The CMB will not be used if the queue depth is shrunk below some threshold where it may have reduced performance over a larger queue in system memory. Signed-off-by: NJon Derrick <jonathan.derrick@intel.com> Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Jon Derrick 提交于
This patch changes sq_cmd writers to instead create their command on the stack. __nvme_submit_cmd copies the sq entry to the queue and writes the doorbell. Signed-off-by: NJon Derrick <jonathan.derrick@intel.com> Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 17 7月, 2015 10 次提交
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由 Jens Axboe 提交于
Lots of devices support huge discard sizes these days. Depending on how the device handles them internally, huge discards can introduce massive latencies (hundreds of msec) on the device side. We have a sysfs file, discard_max_bytes, that advertises the max hardware supported discard size. Make this writeable, and split the settings into a soft and hard limit. This can be set from 'discard_granularity' and up to the hardware limit. Add a new sysfs file, 'discard_max_hw_bytes', that shows the hw set limit. Reviewed-by: NJeff Moyer <jmoyer@redhat.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Jens Axboe 提交于
Some drivers use it now, others just set the limits field manually. But in preparation for splitting this into a hard and soft limit, ensure that they all call the proper function for setting the hw limit for discards. Reviewed-by: NJeff Moyer <jmoyer@redhat.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Ming Lei 提交于
Percpu refcount is the perfect match for partition's case, and the conversion is quite straight. With the convertion, one pair of atomic inc/dec can be saved for accounting block I/O, which is run in hot path of block I/O. Signed-off-by: NMing Lei <tom.leiming@gmail.com> Acked-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Ming Lei 提交于
So the helper can be used in both generic partition case and part0 case. Signed-off-by: NMing Lei <tom.leiming@gmail.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull power management and ACPI fixes from Rafael Wysocki: "These fix two bugs in the cpufreq core (including one recent regression), fix a 4.0 PCI regression related to the ACPI resources management and quieten an RCU-related lockdep complaint about a tracepoint in the suspend-to-idle code. Specifics: - Fix a recently introduced issue in the cpufreq policy object reinitialization that leads to CPU offline/online breakage (Viresh Kumar) - Make it possible to access frequency tables of offline CPUs which is needed by thermal management code among other things (Viresh Kumar) - Fix an ACPI resource management regression introduced during the 4.0 cycle that may cause incorrect resource validation results to appear in 32-bit x86 kernels due to silent truncation of 64-bit values to 32-bit (Jiang Liu) - Fix up an RCU-related lockdep complaint about suspicious RCU usage in idle caused by using a suspend tracepoint in the core suspend- to-idle code (Rafael J Wysocki)" * tag 'pm+acpi-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / PCI: Fix regressions caused by resource_size_t overflow with 32-bit kernel cpufreq: Allow freq_table to be obtained for offline CPUs cpufreq: Initialize the governor again while restoring policy suspend-to-idle: Prevent RCU from complaining about tick_freeze()
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由 Linus Torvalds 提交于
Merge tag 'platform-drivers-x86-v4.2-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x86 platform driver fixes from Darren Hart: "Fix SMBIOS call handling and hwswitch state coherency in the dell-laptop driver. Cleanups for intel_*_ipc drivers. Details: dell-laptop: - Do not cache hwswitch state - Check return value of each SMBIOS call - Clear buffer before each SMBIOS call intel_scu_ipc: - Move local memory initialization out of a mutex intel_pmc_ipc: - Update kerneldoc formatting - Fix compiler casting warnings" * tag 'platform-drivers-x86-v4.2-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: intel_scu_ipc: move local memory initialization out of a mutex intel_pmc_ipc: Update kerneldoc formatting dell-laptop: Do not cache hwswitch state dell-laptop: Check return value of each SMBIOS call dell-laptop: Clear buffer before each SMBIOS call intel_pmc_ipc: Fix compiler casting warnings
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu由 Linus Torvalds 提交于
Pull m68knommu/coldfire fixes from Greg Ungerer: "Contains build fixes and updates for the ColdFire defconfigs. Specifically there is a couple of fixes that address problems building allnoconfig. Also fix for enabling PCI bus on the M54xx family of ColdFire" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: enable PCI support for m5475evb defconfig m68k: fix io functions for ColdFire/MMU/PCI case m68knommu: update defconfig for ColdFire m5475evb m68knommu: update defconfig for ColdFire m5407c3 m68knommu: update defconfig for ColdFire m5307c3 m68knommu: update defconfig for ColdFire m5275evb m68knommu: update defconfig for ColdFire m5272c3 m68knommu: update defconfig for ColdFire m5249evb m68knommu: update defconfig for m5208evb m68knommu: make ColdFire SoC selection a choice m68knommu: improve the clock configuration defaults m68knommu: force setting of CONFIG_CLOCK_FREQ for ColdFire
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git://git.kernel.dk/linux-block由 Linus Torvalds 提交于
Pull block fixes from Jens Axboe: "A collection of fixes from the last few weeks that should go into the current series. This contains: - Various fixes for the per-blkcg policy data, fixing regressions since 4.1. From Arianna and Tejun - Code cleanup for bcache closure macros from me. Really just flushing this out, it's been sitting in another branch for months - FIELD_SIZEOF cleanup from Maninder Singh - bio integrity oops fix from Mike - Timeout regression fix for blk-mq from Ming Lei" * 'for-linus' of git://git.kernel.dk/linux-block: blk-mq: set default timeout as 30 seconds NVMe: Reread partitions on metadata formats bcache: don't embed 'return' statements in closure macros blkcg: fix blkcg_policy_data allocation bug blkcg: implement all_blkcgs list blkcg: blkcg_css_alloc() should grab blkcg_pol_mutex while iterating blkcg_policy[] blkcg: allow blkcg_pol_mutex to be grabbed from cgroup [file] methods block/blk-cgroup.c: free per-blkcg data when freeing the blkcg block: use FIELD_SIZEOF to calculate size of a field bio integrity: do not assume bio_integrity_pool exists if bioset exists
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git://github.com/kleikamp/linux-shaggy由 Linus Torvalds 提交于
Pull jfs fixes from David Kleikamp: "A couple trivial fixes and an error path fix" * tag 'jfs-4.2' of git://github.com/kleikamp/linux-shaggy: jfs: clean up jfs_rename and fix out of order unlock jfs: fix indentation on if statement jfs: removed a prohibited space after opening parenthesis
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由 Rafael J. Wysocki 提交于
* pm-cpuidle: suspend-to-idle: Prevent RCU from complaining about tick_freeze() * pm-cpufreq: cpufreq: Allow freq_table to be obtained for offline CPUs cpufreq: Initialize the governor again while restoring policy * acpi-resources: ACPI / PCI: Fix regressions caused by resource_size_t overflow with 32-bit kernel
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- 16 7月, 2015 11 次提交
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由 Ming Lei 提交于
It is reasonable to set default timeout of request as 30 seconds instead of 30000 ticks, which may be 300 seconds if HZ is 100, for example, some arm64 based systems may choose 100 HZ. Signed-off-by: NMing Lei <ming.lei@canonical.com> Fixes: c76cbbcf ("blk-mq: put blk_queue_rq_timeout together in blk_mq_init_queue()" Signed-off-by: NJens Axboe <axboe@fb.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security由 Linus Torvalds 提交于
Pull TPM bugfixes from James Morris. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: tpm, tpm_crb: fail when TPM2 ACPI table contents look corrupted tpm: Fix initialization of the cdev
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma由 Linus Torvalds 提交于
Pull rdma fixes from Doug Ledford: "Mainly fix-ups for the various 4.2 items" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (24 commits) IB/core: Destroy ocrdma_dev_id IDR on module exit IB/core: Destroy multcast_idr on module exit IB/mlx4: Optimize do_slave_init IB/mlx4: Fix memory leak in do_slave_init IB/mlx4: Optimize freeing of items on error unwind IB/mlx4: Fix use of flow-counters for process_mad IB/ipath: Convert use of __constant_<foo> to <foo> IB/ipoib: Set MTU to max allowed by mode when mode changes IB/ipoib: Scatter-Gather support in connected mode IB/ucm: Fix bitmap wrap when devnum > IB_UCM_MAX_DEVICES IB/ipoib: Prevent lockdep warning in __ipoib_ib_dev_flush IB/ucma: Fix lockdep warning in ucma_lock_files rds: rds_ib_device.refcount overflow RDMA/nes: Fix for incorrect recording of the MAC address RDMA/nes: Fix for resolving the neigh RDMA/core: Fixes for port mapper client registration IB/IPoIB: Fix bad error flow in ipoib_add_port() IB/mlx4: Do not attemp to report HCA clock offset on VFs IB/cm: Do not queue work to a device that's going away IB/srp: Avoid using uninitialized variable ...
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由 Keith Busch 提交于
This patch has the driver automatically reread partitions if a namespace has a separate metadata format. Previously revalidating a disk was sufficient to get the correct capacity set on such formatted drives, but partitions that may exist would not have been surfaced. Reported-by: NPaul Grabinar <paul.grabinar@ranbarg.com> Signed-off-by: NKeith Busch <keith.busch@intel.com> Cc: Matthew Wilcox <willy@linux.intel.com> Tested-by: NPaul Grabinar <paul.grabinar@ranbarg.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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git://git.samba.org/jlayton/linux由 Linus Torvalds 提交于
Pull file locking updates from Jeff Layton: "I had thought that I was going to get away without a pull request this cycle. There was a NFSv4 file locking problem that cropped up that I tried to fix in the NFSv4 code alone, but that fix has turned out to be problematic. These patches fix this in the correct way. Note that this touches some NFSv4 code as well. Ordinarily I'd wait for Trond to ACK this, but he's on holiday right now and the bug is rather nasty. So I suggest we merge this and if he raises issues with it we can sort it out when he gets back" Acked-by: NBruce Fields <bfields@fieldses.org> Acked-by: NDan Williams <dan.j.williams@intel.com> [ +1 to this series fixing a 100% reproducible slab corruption + general protection fault in my nfs-root test environment. - Dan ] Acked-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> * tag 'locks-v4.2-1' of git://git.samba.org/jlayton/linux: locks: inline posix_lock_file_wait and flock_lock_file_wait nfs4: have do_vfs_lock take an inode pointer locks: new helpers - flock_lock_inode_wait and posix_lock_inode_wait locks: have flock_lock_file take an inode pointer instead of a filp Revert "nfs: take extra reference to fl->fl_file when running a LOCKU operation"
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
Pull KVM fixes from Paolo Bonzini: - Fix FPU refactoring ("kvm: x86: fix load xsave feature warning") - Fix eager FPU mode (Cc stable) - AMD bits of MTRR virtualization * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: kvm: x86: fix load xsave feature warning KVM: x86: apply guest MTRR virtualization on host reserved pages KVM: SVM: Sync g_pat with guest-written PAT value KVM: SVM: use NPT page attributes KVM: count number of assigned devices KVM: VMX: fix vmwrite to invalid VMCS KVM: x86: reintroduce kvm_is_mmio_pfn x86: hyperv: add CPUID bit for crash handlers
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc由 Linus Torvalds 提交于
Pull ARC fixes from Vineet Gupta: - Makefile changes (top-level+ARC) reinstates -O3 builds (regression since 3.16) - IDU intc related fixes, IRQ affinity - patch to make bitops safer for ARC - perf fix from Alexey to remove signed PC braino - Futex backend gets llock/scond support * tag 'arc-v4.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARCv2: support HS38 releases ARC: make sure instruction_pointer() returns unsigned value ARC: slightly refactor macros for boot logging ARC: Add llock/scond to futex backend arc:irqchip: prepare for drivers/irqchip/irqchip.h removal ARC: Make ARC bitops "safer" (add anti-optimization) ARCv2: [axs103] bump CPU frequency from 75 to 90 MHZ ARCv2: intc: IDU: Fix potential race in installing a chained IRQ handler ARCv2: intc: IDU: support irq affinity ARC: fix unused var wanring ARC: Don't memzero twice in dma_alloc_coherent for __GFP_ZERO ARC: Override toplevel default -O2 with -O3 kbuild: Allow arch Makefiles to override {cpp,ld,c}flags ARCv2: guard SLC DMA ops with spinlock ARC: Kconfig: better way to disable ARC_HAS_LLSC for ARC_CPU_750D
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux由 Linus Torvalds 提交于
Pull s390 fixes from Martin Schwidefsky: "One improvement for the zcrypt driver, the quality attribute for the hwrng device has been missing. Without it the kernel entropy seeding will not happen automatically. And six bug fixes, the most important one is the fix for the vector register corruption due to machine checks" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/nmi: fix vector register corruption s390/process: fix sfpc inline assembly s390/dasd: fix kernel panic when alias is set offline s390/sclp: clear upper register halves in _sclp_print_early s390/oprofile: fix compile error s390/sclp: fix compile error s390/zcrypt: enable s390 hwrng to seed kernel entropy
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由 Dave Kleikamp 提交于
The end of jfs_rename(), which is also used by the error paths, included a call to IWRITE_UNLOCK(new_ip) after labels out1, out2 and out3. If we come in through these labels, IWRITE_LOCK() has not been called yet. In moving that call to the correct spot, I also moved some exceptional truncate code earlier as well, since the early error paths don't need to deal with it, and I renamed out4: to out_tx: so a future patch by Jan Kara doesn't need to deal with renumbering or confusing out-of-order labels. Signed-off-by: NDave Kleikamp <dave.kleikamp@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux由 Linus Torvalds 提交于
Pull final init.h/module.h code relocation from Paul Gortmaker: "With the release of 4.2-rc2 done, we should not be seeing any new code added that gets upset by this small code move, and we've banked yet another complete week of testing with this move in place on top of 4.2-rc1 via linux-next to ensure that remained true. Given that, I'd like to put it in now so that people formulating new work for 4.3-rc1 will be exposed to the ever so slightly stricter (but sensible) requirements wrt. whether they are needing init.h vs. module.h macros, even if they are not using linux-next. The diffstat of the move is slightly asymmetrical due to needing to leave behind a couple #ifdef in the old location and add the same ones to the new location, but other than that, it is a 1:1 move, complete with the module_init/exit trailing semicolon that we can't fix. That is, until/unless someone does a tree-wide sed fix of all the approximately 800 currently in tree users relying on it" * tag 'module-final-v4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: module: relocate module_init from init.h to module.h
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace由 Linus Torvalds 提交于
Pull tracing fix from Steven Rostedt: "Fengguang Wu discovered a crash that happened to be because of the branch tracer (traces unlikely and likely branches) when enabled with certain debug options. What happened was that various debug options like lockdep and DEBUG_PREEMPT can cause parts of the branch tracer to recurse outside its recursion protection. In fact, part of its recursion protection used these features that caused the lockup. This cleans up the code a little and makes the recursion protection a bit more robust" * tag 'trace-v4.2-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Have branch tracer use recursive field of task struct
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- 15 7月, 2015 2 次提交
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由 Christophe JAILLET 提交于
'{ }' and memset will both reset the cbuf buffer. Only once is enough and this can be done outside fo the mutex. Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: NDarren Hart <dvhart@linux.intel.com>
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