In function nfs_permission:
1. the rcu_read_lock and rcu_read_unlock around nfs_do_access
is unnecessary because the rcu critical data structure is already
protected in subsidiary function nfs_access_get_cached_rcu. No other
data structure needs rcu_read_lock in nfs_do_access.
2. call nfs_do_access once is enough, because:
2-1. when mask has MAY_NOT_BLOCK bit
The second call to nfs_do_access will not happen.
2-2. when mask has no MAY_NOT_BLOCK bit
The second call to nfs_do_access will happen if res == -ECHILD, which
means the first nfs_do_access goes out after statement if (!may_block).
The second call to nfs_do_access will go through this procedure once
again except continue the work after if (!may_block).
But above work can be performed by only one call to nfs_do_access
without mangling the mask flag.
Tested in x86_64
Signed-off-by: Zhouyi Zhou <zhouzhouyi@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
The variable status 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.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
When we receive a CB_RECALL_ANY that asks us to return flexfiles
layouts, we iterate through all the layouts and look at whether or
not there are active open file descriptors that might need them
for I/O. If there are no such descriptors, we return the layouts.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Convert nfs_delegation_reap_unclaimed() to use nfs_client_for_each_server()
for efficiency.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Convert it to use the nfs_client_for_each_server() helper, and
make it more efficient by skipping delegations for inodes we
know are in the process of being freed. Also improve the efficiency
of the cursor by skipping delegations that are being freed.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a helper nfs_client_for_each_server() to iterate through all the
filesystems that are attached to a struct nfs_client, and apply
a function to all the active ones.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Now that we can rely on just the rcu_read_lock(), remove the
clp->cl_lock and clean up.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Make sure to test the stateid for validity so that we catch instances
where the server may have been reusing stateids in
nfs_layout_find_inode_by_stateid().
Fixes: 7b410d9ce4 ("pNFS: Delay getting the layout header in CB_LAYOUTRECALL handlers")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Ensure that if the DS is returning too many DELAY and GRACE errors, we
also report that to the MDS through the layouterror mechanism.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Currently, we have no real limit on the access cache size (we set it
to ULONG_MAX). That can lead to credentials getting pinned for a
very long time on lots of files if you have a system with a lot of
memory.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
In both async rename and rename, we take a reference to the
cred in the call arguments.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Avoid unnecessary references to the cred when we have already referenced
it through the open context or the open owner.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
In read/write/commit, we should be able to assume that the cred is
pinned by the open context.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a flag to signal to the RPC layer that the credential is already
pinned for the duration of the RPC call.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If we're creating a nfs_open_context() for a specific file pointer,
we must use the cred assigned to that file.
Fixes: a52458b48a ("NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
We can't allow delegreturn to hold up nfs4_evict_inode() forever,
since that can cause the memory shrinkers to block. This patch
therefore ensures that we eventually time out, and complete the
reclaim of the inode.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the cred assigned to the layout that we're updating differs from
the one used to retrieve the new layout segment, then we need to
update the layout plh_lc_cred field.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the cred assigned to the delegation that we're updating differs
from the one we're updating too, then we need to update that field
too.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
When we're running as a 64-bit architecture and are not running in
32-bit compatibility mode, it is better to use the 64-bit readdir
cookies that supplied by the server. Doing so improves the accuracy
of telldir()/seekdir(), particularly when the directory is changing,
for instance, when doing 'rm -rf'.
We still fall back to using the 32-bit offsets on 32-bit architectures
and when in compatibility mode.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
to GIC registers which miss in the implementation.
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Merge tag 'irq-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Thomas Gleixner:
"A single commit to handle an erratum in Cavium ThunderX to prevent
access to GIC registers which are broken in the implementation"
* tag 'irq-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v3: Workaround Cavium erratum 38539 when reading GICD_TYPER2
prevent inodes from vanishing, but ihold() does not guarantee inode
persistence. Replace the inode pointer with a per boot, machine wide,
unique inode identifier. The second commit fixes the breakage of the hash
mechanism whihc causes a 100% performance regression.
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Merge tag 'locking-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex fix from Thomas Gleixner:
"Fix for yet another subtle futex issue.
The futex code used ihold() to prevent inodes from vanishing, but
ihold() does not guarantee inode persistence. Replace the inode
pointer with a per boot, machine wide, unique inode identifier.
The second commit fixes the breakage of the hash mechanism which
causes a 100% performance regression"
* tag 'locking-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Unbreak futex hashing
futex: Fix inode life-time issue
- Map EFI runtime service data as encrypted when SEV is enabled otherwise
e.g. SMBIOS data cannot be properly decoded by dmidecode.
- Remove the warning in the vector management code which triggered when a
managed interrupt affinity changed outside of a CPU hotplug
operation. The warning was correct until the recent core code change
that introduced a CPU isolation feature which needs to migrate managed
interrupts away from online CPUs under certain conditions to achieve the
isolation.
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Merge tag 'x86-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Two fixes for x86:
- Map EFI runtime service data as encrypted when SEV is enabled.
Otherwise e.g. SMBIOS data cannot be properly decoded by dmidecode.
- Remove the warning in the vector management code which triggered
when a managed interrupt affinity changed outside of a CPU hotplug
operation.
The warning was correct until the recent core code change that
introduced a CPU isolation feature which needs to migrate managed
interrupts away from online CPUs under certain conditions to
achieve the isolation"
* tag 'x86-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vector: Remove warning on managed interrupt migration
x86/ioremap: Map EFI runtime services data as encrypted for SEV
- AMD uncore driver:
Replace the open coded sanity check with the core variant, which
provides the correct error code and also leaves a hint in dmesg
- tools:
- Fix the stdio input handling with glibc versions >= 2.28
- Unbreak the futex-wake benchmark which was reduced to 0 test threads
due to the conversion to cpumaps
- Initialize sigaction structs before invoking sys_sigactio()
- Plug the mapfile memory leak in perf jevents
- Fix off by one relative directory includes
- Fix an undefined string comparison in perf diff
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Merge tag 'perf-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A pile of perf fixes:
Kernel side:
- AMD uncore driver: Replace the open coded sanity check with the
core variant, which provides the correct error code and also leaves
a hint in dmesg
Tooling:
- Fix the stdio input handling with glibc versions >= 2.28
- Unbreak the futex-wake benchmark which was reduced to 0 test
threads due to the conversion to cpumaps
- Initialize sigaction structs before invoking sys_sigactio()
- Plug the mapfile memory leak in perf jevents
- Fix off by one relative directory includes
- Fix an undefined string comparison in perf diff"
* tag 'perf-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/amd/uncore: Replace manual sampling check with CAP_NO_INTERRUPT flag
tools: Fix off-by 1 relative directory includes
perf jevents: Fix leak of mapfile memory
perf bench: Clear struct sigaction before sigaction() syscall
perf bench futex-wake: Restore thread count default to online CPU count
perf top: Fix stdio interface input handling with glibc 2.28+
perf diff: Fix undefined string comparision spotted by clang's -Wstring-compare
perf symbols: Don't try to find a vmlinux file when looking for kernel modules
perf bench: Share some global variables to fix build with gcc 10
perf parse-events: Use asprintf() instead of strncpy() to read tracepoint files
perf env: Do not return pointers to local variables
perf tests bp_account: Make global variable static
which caused sys/sysinfo to be inconsistent with /proc/uptime when read
from a task inside a time namespace.
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Merge tag 'timers-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
"A single fix adding the missing time namespace adjustment in
sys/sysinfo which caused sys/sysinfo to be inconsistent with
/proc/uptime when read from a task inside a time namespace"
* tag 'timers-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sys/sysinfo: Respect boottime inside time namespace
- Shut down the per CPU thermal throttling poll work properly when a CPU
goes offline. The missing shutdown caused the poll work to be migrated
to a unbound worker which triggered warnings about the usage of
smp_processor_id() in preemptible context
- Fix the PPIN feature initialization which missed to enable the
functionality when PPIN_CTL was enabled but the MSR locked against
updates.
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Merge tag 'ras-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS fixes from Thomas Gleixner:
"Two RAS related fixes:
- Shut down the per CPU thermal throttling poll work properly when a
CPU goes offline.
The missing shutdown caused the poll work to be migrated to a
unbound worker which triggered warnings about the usage of
smp_processor_id() in preemptible context
- Fix the PPIN feature initialization which missed to enable the
functionality when PPIN_CTL was enabled but the MSR locked against
updates"
* tag 'ras-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Fix logic and comments around MSR_PPIN_CTL
x86/mce/therm_throt: Undo thermal polling properly on CPU offline
- Prevent a race and buffer overflow in the sysfs efivars interface which
causes kernel memory corruption.
- Add the missing NULL pointer checks in efivar_store_raw()
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Merge tag 'efi-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Thomas Gleixner:
"Two EFI fixes:
- Prevent a race and buffer overflow in the sysfs efivars interface
which causes kernel memory corruption.
- Add the missing NULL pointer checks in efivar_store_raw()"
* tag 'efi-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: Add a sanity check to efivar_store_raw()
efi: Fix a race and a buffer overflow while reading efivars via sysfs
Including:
- Mostly Intel VT-d fixes:
- RCU list handling fixes
- Replace WARN_TAINT with pr_warn + add_taint for reporting
firmware issues
- DebugFS fixes
- Fix for hugepage handling in iova_to_phys implementation
- Fix for handling VMD devices, which have a domain number
which doesn't fit into 16 bits
- Warning message fix
- MSI allocation fix for iommu-dma code
- Sign-extension fix for io page-table code
- Fix for AMD-Vi to properly update the is-running bit when
AVIC is used
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Merge tag 'iommu-fixes-v5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
- Intel VT-d fixes:
- RCU list handling fixes
- Replace WARN_TAINT with pr_warn + add_taint for reporting firmware
issues
- DebugFS fixes
- Fix for hugepage handling in iova_to_phys implementation
- Fix for handling VMD devices, which have a domain number which
doesn't fit into 16 bits
- Warning message fix
- MSI allocation fix for iommu-dma code
- Sign-extension fix for io page-table code
- Fix for AMD-Vi to properly update the is-running bit when AVIC is
used
* tag 'iommu-fixes-v5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Populate debugfs if IOMMUs are detected
iommu/amd: Fix IOMMU AVIC not properly update the is_run bit in IRTE
iommu/vt-d: Ignore devices with out-of-spec domain number
iommu/vt-d: Fix the wrong printing in RHSA parsing
iommu/vt-d: Fix debugfs register reads
iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint
iommu/vt-d: dmar_parse_one_rmrr: replace WARN_TAINT with pr_warn + add_taint
iommu/vt-d: dmar: replace WARN_TAINT with pr_warn + add_taint
iommu/vt-d: Silence RCU-list debugging warnings
iommu/vt-d: Fix RCU-list bugs in intel_iommu_init()
iommu/dma: Fix MSI reservation allocation
iommu/io-pgtable-arm: Fix IOVA validation for 32-bit
iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys() for huge page
iommu/vt-d: Fix RCU list debugging warnings
Pull i2c fixes from Wolfram Sang:
"I2C has quite some regression fixes this time.
One is also related to watchdogs, we have proper acks from Guenter for
them"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: acpi: put device when verifying client fails
misc: eeprom: at24: fix regulator underflow
i2c: gpio: suppress error on probe defer
macintosh: windfarm: fix MODINFO regression
i2c: designware-pci: Fix BUG_ON during device removal
i2c: i801: Do not add ICH_RES_IO_SMI for the iTCO_wdt device
watchdog: iTCO_wdt: Make ICH_RES_IO_SMI optional
watchdog: iTCO_wdt: Export vendorsupport
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Bugfixes for x86 and s390"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: nVMX: avoid NULL pointer dereference with incorrect EVMCS GPAs
KVM: x86: Initializing all kvm_lapic_irq fields in ioapic_write_indirect
KVM: VMX: Condition ENCLS-exiting enabling on CPU support for SGX1
KVM: s390: Also reset registers in sync regs for initial cpu reset
KVM: fix Kconfig menu text for -Werror
KVM: x86: remove stale comment from struct x86_emulate_ctxt
KVM: x86: clear stale x86_emulate_ctxt->intercept value
KVM: SVM: Fix the svm vmexit code for WRMSR
KVM: X86: Fix dereference null cpufreq policy
Currently, the intel iommu debugfs directory(/sys/kernel/debug/iommu/intel)
gets populated only when DMA remapping is enabled (dmar_disabled = 0)
irrespective of whether interrupt remapping is enabled or not.
Instead, populate the intel iommu debugfs directory if any IOMMUs are
detected.
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: ee2636b867 ("iommu/vt-d: Enable base Intel IOMMU debugfs support")
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
more fixes for this -rc series.
- Mark device node const in of_clk_get_parent APIs to ease landing
changes in users later
- Fix flag for Qualcomm SC7180 video clocks where we thought it would
never turn off but actually hardware takes care of it
- Remove disp_cc_mdss_rscc_ahb_clk on Qualcomm SC7180 SoCs because this
clk is always on anyway
- Correct some bad dt-binding numbers for i.MX8MN SoCs
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A small collection of fixes. I'll make another sweep soon to look for
more fixes for this -rc series.
- Mark device node const in of_clk_get_parent APIs to ease landing
changes in users later
- Fix flag for Qualcomm SC7180 video clocks where we thought it would
never turn off but actually hardware takes care of it
- Remove disp_cc_mdss_rscc_ahb_clk on Qualcomm SC7180 SoCs because
this clk is always on anyway
- Correct some bad dt-binding numbers for i.MX8MN SoCs"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: imx8mn: Fix incorrect clock defines
clk: qcom: dispcc: Remove support of disp_cc_mdss_rscc_ahb_clk
clk: qcom: videocc: Update the clock flag for video_cc_vcodec0_core_clk
of: clk: Make of_clk_get_parent_{count,name}() parameter const
When an EVMCS enabled L1 guest on KVM will tries doing enlightened VMEnter
with EVMCS GPA = 0 the host crashes because the
evmcs_gpa != vmx->nested.hv_evmcs_vmptr
condition in nested_vmx_handle_enlightened_vmptrld() will evaluate to
false (as nested.hv_evmcs_vmptr is zeroed after init). The crash will
happen on vmx->nested.hv_evmcs pointer dereference.
Another problematic EVMCS ptr value is '-1' but it only causes host crash
after nested_release_evmcs() invocation. The problem is exactly the same as
with '0', we mistakenly think that the EVMCS pointer hasn't changed and
thus nested.hv_evmcs_vmptr is valid.
Resolve the issue by adding an additional !vmx->nested.hv_evmcs
check to nested_vmx_handle_enlightened_vmptrld(), this way we will
always be trying kvm_vcpu_map() when nested.hv_evmcs is NULL
and this is supposed to catch all invalid EVMCS GPAs.
Also, initialize hv_evmcs_vmptr to '0' in nested_release_evmcs()
to be consistent with initialization where we don't currently
set hv_evmcs_vmptr to '-1'.
Cc: stable@vger.kernel.org
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
With 7de3f1423f ("KVM: s390: Add new reset vcpu API") we clarified
the meaning of the reset ioctl to fully reset the CPU and not only the
parts that can not be handled by userspace. Turns out that we missed
some parts.
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Merge tag 'kvm-s390-master-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-master
KVM: s390: Fully do the CPU resets as intended
With 7de3f1423f ("KVM: s390: Add new reset vcpu API") we clarified
the meaning of the reset ioctl to fully reset the CPU and not only the
parts that can not be handled by userspace. Turns out that we missed
some parts.
Previously all fields of structure kvm_lapic_irq were not initialized
before it was passed to kvm_bitmap_or_dest_vcpus(). Which will cause
an issue when any of those fields are used for processing a request.
For example not initializing the msi_redir_hint field before passing
to the kvm_bitmap_or_dest_vcpus(), may lead to a misbehavior of
kvm_apic_map_get_dest_lapic(). This will specifically happen when the
kvm_lowest_prio_delivery() returns TRUE due to a non-zero garbage
value of msi_redir_hint, which should not happen as the request belongs
to APIC fixed delivery mode and we do not want to deliver the
interrupt only to the lowest priority candidate.
This patch initializes all the fields of kvm_lapic_irq based on the
values of ioapic redirect_entry object before passing it on to
kvm_bitmap_or_dest_vcpus().
Fixes: 7ee30bc132 ("KVM: x86: deliver KVM IOAPIC scan request to target vCPUs")
Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
[Set level to false since the value doesn't really matter. Suggested
by Vitaly Kuznetsov. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Enable ENCLS-exiting (and thus set vmcs.ENCLS_EXITING_BITMAP) only if
the CPU supports SGX1. Per Intel's SDM, all ENCLS leafs #UD if SGX1
is not supported[*], i.e. intercepting ENCLS to inject a #UD is
unnecessary.
Avoiding ENCLS-exiting even when it is reported as supported by the CPU
works around a reported issue where SGX is "hard" disabled after an S3
suspend/resume cycle, i.e. CPUID.0x7.SGX=0 and the VMCS field/control
are enumerated as unsupported. While the root cause of the S3 issue is
unknown, it's definitely _not_ a KVM (or kernel) bug, i.e. this is a
workaround for what is most likely a hardware or firmware issue. As a
bonus side effect, KVM saves a VMWRITE when first preparing vmcs01 and
vmcs02.
Note, SGX must be disabled in BIOS to take advantage of this workaround
[*] The additional ENCLS CPUID check on SGX1 exists so that SGX can be
globally "soft" disabled post-reset, e.g. if #MC bits in MCi_CTL are
cleared. Soft disabled meaning disabling SGX without clearing the
primary CPUID bit (in leaf 0x7) and without poking into non-SGX
CPU paths, e.g. for the VMCS controls.
Fixes: 0b665d3040 ("KVM: vmx: Inject #UD for SGX ENCLS instruction in guest")
Reported-by: Toni Spets <toni.spets@iki.fi>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit b9c6ff94e4 ("iommu/amd: Re-factor guest virtual APIC
(de-)activation code") accidentally left out the ir_data pointer when
calling modity_irte_ga(), which causes the function amd_iommu_update_ga()
to return prematurely due to struct amd_ir_data.ref is NULL and
the "is_run" bit of IRTE does not get updated properly.
This results in bad I/O performance since IOMMU AVIC always generate GA Log
entry and notify IOMMU driver and KVM when it receives interrupt from the
PCI pass-through device instead of directly inject interrupt to the vCPU.
Fixes by passing ir_data when calling modify_irte_ga() as done previously.
Fixes: b9c6ff94e4 ("iommu/amd: Re-factor guest virtual APIC (de-)activation code")
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
VMD subdevices are created with a PCI domain ID of 0x10000 or
higher.
These subdevices are also handled like all other PCI devices by
dmar_pci_bus_notifier().
However, when dmar_alloc_pci_notify_info() take records of such devices,
it will truncate the domain ID to a u16 value (in info->seg).
The device at (e.g.) 10000:00:02.0 is then treated by the DMAR code as if
it is 0000:00:02.0.
In the unlucky event that a real device also exists at 0000:00:02.0 and
also has a device-specific entry in the DMAR table,
dmar_insert_dev_scope() will crash on:
BUG_ON(i >= devices_cnt);
That's basically a sanity check that only one PCI device matches a
single DMAR entry; in this case we seem to have two matching devices.
Fix this by ignoring devices that have a domain number higher than
what can be looked up in the DMAR table.
This problem was carefully diagnosed by Jian-Hong Pan.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Fixes: 59ce0515cd ("iommu/vt-d: Update DRHD/RMRR/ATSR device scope caches when PCI hotplug happens")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
When base address in RHSA structure doesn't match base address in
each DRHD structure, the base address in last DRHD is printed out.
This doesn't make sense when there are multiple DRHD units, fix it
by printing the buggy RHSA's base address.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@gmail.com>
Fixes: fd0c889489 ("intel-iommu: Set a more specific taint flag for invalid BIOS DMAR tables")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Two small fixes, both in drivers: ipr and ufs.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two small fixes, both in drivers: ipr and ufs"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ipr: Fix softlockup when rescanning devices in petitboot
scsi: ufs: Fix possible unclocked access to auto hibern8 timer register
Fixes:
- Ensure the fs_context has the correct fs_type when mounting and submounting
- Fix leaking of ctx->nfs_server.hostname
- Add minor version to fscache key to prevent collisions
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Merge tag 'nfs-for-5.6-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client bugfixes from Anna Schumaker:
"These are mostly fscontext fixes, but there is also one that fixes
collisions seen in fscache:
- Ensure the fs_context has the correct fs_type when mounting and
submounting
- Fix leaking of ctx->nfs_server.hostname
- Add minor version to fscache key to prevent collisions"
* tag 'nfs-for-5.6-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
nfs: add minor version to nfs_server_key for fscache
NFS: Fix leak of ctx->nfs_server.hostname
NFS: Don't hard-code the fs_type when submounting
NFS: Ensure the fs_context has the correct fs_type before mounting
Murphy Zhou