| Commit message (Collapse) | Author | Age | Files | Lines |
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Now that both the Send and Receive completions are handled in
process context, it is safe to DMA unmap and return MRs to the
free or recycle lists directly in the completion handlers.
Doing this means rpcrdma_frwr no longer needs to track the state of
each MR, meaning that a VALID or FLUSHED MR can no longer appear on
an xprt's MR free list. Thus there is no longer a need to track the
MR's registration state in rpcrdma_frwr.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Commit 9590d083c1bb ("xprtrdma: Use xprt_pin_rqst in
rpcrdma_reply_handler") pins incoming RPC/RDMA replies so they
can be left in the pending requests queue while they are being
processed without introducing a race between ->buf_free and the
transport's reply handler. Therefore RPCRDMA_REQ_F_PENDING is no
longer necessary.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Under high I/O workloads, I've noticed that an RPC/RDMA transport
occasionally deadlocks (IOPS goes to zero, and doesn't recover).
Diagnosis shows that the sendctx queue is empty, but when sendctxs
are returned to the queue, the xprt_write_space wake-up never
occurs. The wake-up logic in rpcrdma_sendctx_put_locked is racy.
I noticed that both EMPTY_SCQ and XPRT_WRITE_SPACE are implemented
via an atomic bit. Just one of those is sufficient. Removing
EMPTY_SCQ in favor of the generic bit mechanism makes the deadlock
un-reproducible.
Without EMPTY_SCQ, rpcrdma_buffer::rb_flags is no longer used and
is therefore removed.
Unfortunately this patch does not apply cleanly to stable. If
needed, someone will have to port it and test it.
Fixes: 2fad659209d5 ("xprtrdma: Wait on empty sendctx queue")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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This is a latent bug. xdr_stream_pos works by subtracting
xdr_stream::nwords from xdr_buf::len. But xdr_stream::nwords is not
initialized by xdr_init_encode().
It works today only because all fields in rpcrdma_req::rl_stream
are initialized to zero by rpcrdma_req_create, making the
subtraction in xdr_stream_pos always a no-op.
I found this issue via code inspection. It was introduced by commit
39f4cd9e9982 ("xprtrdma: Harden chunk list encoding against send
buffer overflow"), but the code has changed enough since then that
this fix can't be automatically applied to stable.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Dereference wr->next /before/ the memory backing wr has been
released. This issue was found by code inspection. It is not
expected to be a significant problem because it is in an error
path that is almost never executed.
Fixes: 7c8d9e7c8863 ("xprtrdma: Move Receive posting to ... ")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Ensure last_used is updated before calling mod_timer inside
xprt_schedule_autodisconnect. This avoids a possible xprt_autoclose
firing immediately after a successful connect when xprt_unlock_connect
calls xprt_schedule_autodisconnect with an old value of last_used.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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The "CONFIG_" portion is added automatically, so this was being expanded
into "CONFIG_CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES"
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Remove the following warning:
net/sunrpc/debugfs.c:13: warning: cannot understand function prototype: 'struct dentry *topdir;
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Now that a client can have multiple xprts, we need to add
them all to debugs.
The first one is still "xprt"
Subsequent xprts are "xprt1", "xprt2", etc.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Now that a client can have multiple xprts, we need to
report the statistics for all of them.
Reported-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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With NFSv4.1, different network connections need to be explicitly
bound to a session. During session startup, this is not possible
so only a single connection must be used for session startup.
So add a task flag to disable the default round-robin choice of
connections (when nconnect > 1) and force the use of a single
connection.
Then use that flag on all requests for session management - for
consistence, include NFSv4.0 management (SETCLIENTID) and session
destruction
Reported-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Add an argument to struct rpc_create_args that allows the specification
of how many transport connections you want to set up to the server.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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For now, just count the queue length. It is less accurate than counting
number of bytes queued, but easier to implement.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Replace the direct task wakeups from inside a softirq context with
wakeups from a process context.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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The queue timer function, which walks the RPC queue in order to locate
candidates for waking up is one of the current constraints against
removing the bh-safe queue spin locks. Replace it with a delayed
work queue, so that we can do the actual rpc task wake ups from an
ordinary process context.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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We often see various error conditions with NFS4.x that show up with
a very high operation count all completing with tk_status < 0 in a
short period of time. Add a count to rpc_iostats to record on a
per-op basis the ops that complete in this manner, which will
enable lower overhead diagnostics.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Update the printk specifiers inside _print_rpc_iostats to avoid
a checkpatch warning.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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For diagnostic purposes, it would be useful to have an rpc_iostats
metric of RPCs completing with tk_status < 0. Unfortunately,
tk_status is reset inside the rpc_call_done functions for each
operation, and the call to tally the per-op metrics comes after
rpc_call_done. Refactor the call to rpc_count_iostat earlier in
rpc_exit_task so we can count these RPCs completing in error.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Pull ceph updates from Ilya Dryomov:
"Lots of exciting things this time!
- support for rbd object-map and fast-diff features (myself). This
will speed up reads, discards and things like snap diffs on sparse
images.
- ceph.snap.btime vxattr to expose snapshot creation time (David
Disseldorp). This will be used to integrate with "Restore Previous
Versions" feature added in Windows 7 for folks who reexport ceph
through SMB.
- security xattrs for ceph (Zheng Yan). Only selinux is supported for
now due to the limitations of ->dentry_init_security().
- support for MSG_ADDR2, FS_BTIME and FS_CHANGE_ATTR features (Jeff
Layton). This is actually a single feature bit which was missing
because of the filesystem pieces. With this in, the kernel client
will finally be reported as "luminous" by "ceph features" -- it is
still being reported as "jewel" even though all required Luminous
features were implemented in 4.13.
- stop NULL-terminating ceph vxattrs (Jeff Layton). The convention
with xattrs is to not terminate and this was causing
inconsistencies with ceph-fuse.
- change filesystem time granularity from 1 us to 1 ns, again fixing
an inconsistency with ceph-fuse (Luis Henriques).
On top of this there are some additional dentry name handling and cap
flushing fixes from Zheng. Finally, Jeff is formally taking over for
Zheng as the filesystem maintainer"
* tag 'ceph-for-5.3-rc1' of git://github.com/ceph/ceph-client: (71 commits)
ceph: fix end offset in truncate_inode_pages_range call
ceph: use generic_delete_inode() for ->drop_inode
ceph: use ceph_evict_inode to cleanup inode's resource
ceph: initialize superblock s_time_gran to 1
MAINTAINERS: take over for Zheng as CephFS kernel client maintainer
rbd: setallochint only if object doesn't exist
rbd: support for object-map and fast-diff
rbd: call rbd_dev_mapping_set() from rbd_dev_image_probe()
libceph: export osd_req_op_data() macro
libceph: change ceph_osdc_call() to take page vector for response
libceph: bump CEPH_MSG_MAX_DATA_LEN (again)
rbd: new exclusive lock wait/wake code
rbd: quiescing lock should wait for image requests
rbd: lock should be quiesced on reacquire
rbd: introduce copyup state machine
rbd: rename rbd_obj_setup_*() to rbd_obj_init_*()
rbd: move OSD request allocation into object request state machines
rbd: factor out __rbd_osd_setup_discard_ops()
rbd: factor out rbd_osd_setup_copyup()
rbd: introduce obj_req->osd_reqs list
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Speed up reads, discards and zeroouts through RBD_OBJ_FLAG_MAY_EXIST
and RBD_OBJ_FLAG_NOOP_FOR_NONEXISTENT based on object map.
Invalid object maps are not trusted, but still updated. Note that we
never iterate, resize or invalidate object maps. If object-map feature
is enabled but object map fails to load, we just fail the requester
(either "rbd map" or I/O, by way of post-acquire action).
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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We already have one exported wrapper around it for extent.osd_data and
rbd_object_map_update_finish() needs another one for cls.request_data.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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This will be used for loading object map. rbd_obj_read_sync() isn't
suitable because object map must be accessed through class methods.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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This list item remained from when we had safe and unsafe replies
(commit vs ack). It has since become a private list item for use by
clients.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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...ditto for the decode function. We only use these functions to fix
up banner addresses now, so let's name them more appropriately.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Going forward, we'll have different address types so let's use
the addr2 TYPE_LEGACY for internal tracking rather than TYPE_NONE.
Also, make ceph_pr_addr print the address type value as well.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Given the new format, we have to decode the addresses twice. Once to
skip past the new_up_client field, and a second time to collect the
addresses.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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While we're in there, let's also fix up the decoder to do proper
bounds checking.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Switch the MonMap decoder to use the new decoding routine for
entity_addr_t's.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Add a function for decoding an entity_addr_t. Once
CEPH_FEATURE_MSG_ADDR2 is enabled, the server daemons will start
encoding entity_addr_t differently.
Add a new helper function that can handle either format.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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It doesn't make sense to leave it undecoded until later.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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This function is entirely unused.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration changes:
- Evaluate PCI Boot Configuration _DSM to learn if firmware wants us
to preserve its resource assignments (Benjamin Herrenschmidt)
- Simplify resource distribution (Nicholas Johnson)
- Decode 32 GT/s link speed (Gustavo Pimentel)
Virtualization:
- Fix incorrect caching of VF config space size (Alex Williamson)
- Fix VF driver probing sysfs knobs (Alex Williamson)
Peer-to-peer DMA:
- Fix dma_virt_ops check (Logan Gunthorpe)
Altera host bridge driver:
- Allow building as module (Ley Foon Tan)
Armada 8K host bridge driver:
- add PHYs support (Miquel Raynal)
DesignWare host bridge driver:
- Export APIs to support removable loadable module (Vidya Sagar)
- Enable Relaxed Ordering erratum workaround only on Tegra20 &
Tegra30 (Vidya Sagar)
Hyper-V host bridge driver:
- Fix use-after-free in eject (Dexuan Cui)
Mobiveil host bridge driver:
- Clean up and fix many issues, including non-identify mapped
windows, 64-bit windows, multi-MSI, class code, INTx clearing (Hou
Zhiqiang)
Qualcomm host bridge driver:
- Use clk bulk API for 2.4.0 controllers (Bjorn Andersson)
- Add QCS404 support (Bjorn Andersson)
- Assert PERST for at least 100ms (Niklas Cassel)
R-Car host bridge driver:
- Add r8a774a1 DT support (Biju Das)
Tegra host bridge driver:
- Add support for Gen2, opportunistic UpdateFC and ACK (PCIe protocol
details) AER, GPIO-based PERST# (Manikanta Maddireddy)
- Fix many issues, including power-on failure cases, interrupt
masking in suspend, UPHY settings, AFI dynamic clock gating,
pending DLL transactions (Manikanta Maddireddy)
Xilinx host bridge driver:
- Fix NWL Multi-MSI programming (Bharat Kumar Gogada)
Endpoint support:
- Fix 64bit BAR support (Alan Mikhak)
- Fix pcitest build issues (Alan Mikhak, Andy Shevchenko)
Bug fixes:
- Fix NVIDIA GPU multi-function power dependencies (Abhishek Sahu)
- Fix NVIDIA GPU HDA enablement issue (Lukas Wunner)
- Ignore lockdep for sysfs "remove" (Marek Vasut)
Misc:
- Convert docs to reST (Changbin Du, Mauro Carvalho Chehab)"
* tag 'pci-v5.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (107 commits)
PCI: Enable NVIDIA HDA controllers
tools: PCI: Fix installation when `make tools/pci_install`
PCI: dwc: pci-dra7xx: Fix compilation when !CONFIG_GPIOLIB
PCI: Fix typos and whitespace errors
PCI: mobiveil: Fix INTx interrupt clearing in mobiveil_pcie_isr()
PCI: mobiveil: Fix infinite-loop in the INTx handling function
PCI: mobiveil: Move PCIe PIO enablement out of inbound window routine
PCI: mobiveil: Add upper 32-bit PCI base address setup in inbound window
PCI: mobiveil: Add upper 32-bit CPU base address setup in outbound window
PCI: mobiveil: Mask out hardcoded bits in inbound/outbound windows setup
PCI: mobiveil: Clear the control fields before updating it
PCI: mobiveil: Add configured inbound windows counter
PCI: mobiveil: Fix the valid check for inbound and outbound windows
PCI: mobiveil: Clean-up program_{ib/ob}_windows()
PCI: mobiveil: Remove an unnecessary return value check
PCI: mobiveil: Fix error return values
PCI: mobiveil: Refactor the MEM/IO outbound window initialization
PCI: mobiveil: Make some register updates more readable
PCI: mobiveil: Reformat the code for readability
dt-bindings: PCI: mobiveil: Change gpio_slave and apb_csr to optional
...
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Convert the PM documents to ReST, in order to allow them to
build with Sphinx.
The conversion is actually:
- add blank lines and indentation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Srivatsa S. Bhat (VMware) <srivatsa@csail.mit.edu>
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Pull rdma updates from Jason Gunthorpe:
"A smaller cycle this time. Notably we see another new driver, 'Soft
iWarp', and the deletion of an ancient unused driver for nes.
- Revise and simplify the signature offload RDMA MR APIs
- More progress on hoisting object allocation boiler plate code out
of the drivers
- Driver bug fixes and revisions for hns, hfi1, efa, cxgb4, qib,
i40iw
- Tree wide cleanups: struct_size, put_user_page, xarray, rst doc
conversion
- Removal of obsolete ib_ucm chardev and nes driver
- netlink based discovery of chardevs and autoloading of the modules
providing them
- Move more of the rdamvt/hfi1 uapi to include/uapi/rdma
- New driver 'siw' for software based iWarp running on top of netdev,
much like rxe's software RoCE.
- mlx5 feature to report events in their raw devx format to userspace
- Expose per-object counters through rdma tool
- Adaptive interrupt moderation for RDMA (DIM), sharing the DIM core
from netdev"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (194 commits)
RMDA/siw: Require a 64 bit arch
RDMA/siw: Mark expected switch fall-throughs
RDMA/core: Fix -Wunused-const-variable warnings
rdma/siw: Remove set but not used variable 's'
rdma/siw: Add missing dependencies on LIBCRC32C and DMA_VIRT_OPS
RDMA/siw: Add missing rtnl_lock around access to ifa
rdma/siw: Use proper enumerated type in map_cqe_status
RDMA/siw: Remove unnecessary kthread create/destroy printouts
IB/rdmavt: Fix variable shadowing issue in rvt_create_cq
RDMA/core: Fix race when resolving IP address
RDMA/core: Make rdma_counter.h compile stand alone
IB/core: Work on the caller socket net namespace in nldev_newlink()
RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM
RDMA/mlx5: Set RDMA DIM to be enabled by default
RDMA/nldev: Added configuration of RDMA dynamic interrupt moderation to netlink
RDMA/core: Provide RDMA DIM support for ULPs
linux/dim: Implement RDMA adaptive moderation (DIM)
IB/mlx5: Report correctly tag matching rendezvous capability
docs: infiniband: add it to the driver-api bookset
IB/mlx5: Implement VHCA tunnel mechanism in DEVX
...
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For dependencies in next patches.
Resolve conflicts:
- Use uverbs_get_cleared_udata() with new cq allocation flow
- Continue to delete nes despite SPDX conflict
- Resolve list appends in mlx5_command_str()
- Use u16 for vport_rule stuff
- Resolve list appends in struct ib_client
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Take mlx5-next so we can take a dependent two patch series next.
Signed-off-by: Doug Ledford <dledford@redhat.com>
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There is no value in checking ib_destroy_cq() result and skipping to clear
struct ic fields. This connection needs to be reinitialized anyway.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Pull networking fixes from David Miller:
1) Fix excessive stack usage in cxgb4, from Arnd Bergmann.
2) Missing skb queue lock init in tipc, from Chris Packham.
3) Fix some regressions in ipv6 flow label handling, from Eric Dumazet.
4) Elide flow dissection of local packets in FIB rules, from Petar
Penkov.
5) Fix TLS support build failure in mlx5, from Tariq Toukab.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (36 commits)
ppp: mppe: Revert "ppp: mppe: Add softdep to arc4"
net: dsa: qca8k: replace legacy gpio include
net: hisilicon: Use devm_platform_ioremap_resource
cxgb4: reduce kernel stack usage in cudbg_collect_mem_region()
tipc: ensure head->lock is initialised
tc-tests: updated skbedit tests
nfp: flower: ensure ip protocol is specified for L4 matches
nfp: flower: fix ethernet check on match fields
net/mlx5e: Provide cb_list pointer when setting up tc block on rep
net: phy: make exported variables non-static
net: sched: Fix NULL-pointer dereference in tc_indr_block_ing_cmd()
davinci_cpdma: don't cast dma_addr_t to pointer
net: openvswitch: do not update max_headroom if new headroom is equal to old headroom
net/mlx5e: Convert single case statement switch statements into if statements
net/mlx5: E-Switch, Reduce ingress acl modify metadata stack usage
net/mlx5e: Fix unused variable warning when CONFIG_MLX5_ESWITCH is off
net/mlx5e: Fix compilation error in TLS code
ipv6: fix static key imbalance in fl_create()
ipv6: fix potential crash in ip6_datagram_dst_update()
ipv6: tcp: fix flowlabels reflection for RST packets
...
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tipc_named_node_up() creates a skb list. It passes the list to
tipc_node_xmit() which has some code paths that can call
skb_queue_purge() which relies on the list->lock being initialised.
The spin_lock is only needed if the messages end up on the receive path
but when the list is created in tipc_named_node_up() we don't
necessarily know if it is going to end up there.
Once all the skb list users are updated in tipc it will then be possible
to update them to use the unlocked variants of the skb list functions
and initialise the lock when we know the message will follow the receive
path.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After recent refactoring of block offlads infrastructure, indr_dev->block
pointer is dereferenced before it is verified to be non-NULL. Example stack
trace where this behavior leads to NULL-pointer dereference error when
creating vxlan dev on system with mlx5 NIC with offloads enabled:
[ 1157.852938] ==================================================================
[ 1157.866877] BUG: KASAN: null-ptr-deref in tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1157.880877] Read of size 4 at addr 0000000000000090 by task ip/3829
[ 1157.901637] CPU: 22 PID: 3829 Comm: ip Not tainted 5.2.0-rc6+ #488
[ 1157.914438] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
[ 1157.929031] Call Trace:
[ 1157.938318] dump_stack+0x9a/0xeb
[ 1157.948362] ? tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1157.960262] ? tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1157.972082] __kasan_report+0x176/0x192
[ 1157.982513] ? tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1157.994348] kasan_report+0xe/0x20
[ 1158.004324] tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1158.015950] ? tcf_block_setup+0x430/0x430
[ 1158.026558] ? kasan_unpoison_shadow+0x30/0x40
[ 1158.037464] __tc_indr_block_cb_register+0x5f5/0xf20
[ 1158.049288] ? mlx5e_rep_indr_tc_block_unbind+0xa0/0xa0 [mlx5_core]
[ 1158.062344] ? tc_indr_block_dev_put.part.47+0x5c0/0x5c0
[ 1158.074498] ? rdma_roce_rescan_device+0x20/0x20 [ib_core]
[ 1158.086580] ? br_device_event+0x98/0x480 [bridge]
[ 1158.097870] ? strcmp+0x30/0x50
[ 1158.107578] mlx5e_nic_rep_netdevice_event+0xdd/0x180 [mlx5_core]
[ 1158.120212] notifier_call_chain+0x6d/0xa0
[ 1158.130753] register_netdevice+0x6fc/0x7e0
[ 1158.141322] ? netdev_change_features+0xa0/0xa0
[ 1158.152218] ? vxlan_config_apply+0x210/0x310 [vxlan]
[ 1158.163593] __vxlan_dev_create+0x2ad/0x520 [vxlan]
[ 1158.174770] ? vxlan_changelink+0x490/0x490 [vxlan]
[ 1158.185870] ? rcu_read_unlock+0x60/0x60 [vxlan]
[ 1158.196798] vxlan_newlink+0x99/0xf0 [vxlan]
[ 1158.207303] ? __vxlan_dev_create+0x520/0x520 [vxlan]
[ 1158.218601] ? rtnl_create_link+0x3d0/0x450
[ 1158.228900] __rtnl_newlink+0x8a7/0xb00
[ 1158.238701] ? stack_access_ok+0x35/0x80
[ 1158.248450] ? rtnl_link_unregister+0x1a0/0x1a0
[ 1158.258735] ? find_held_lock+0x6d/0xd0
[ 1158.268379] ? is_bpf_text_address+0x67/0xf0
[ 1158.278330] ? lock_acquire+0xc1/0x1f0
[ 1158.287686] ? is_bpf_text_address+0x5/0xf0
[ 1158.297449] ? is_bpf_text_address+0x86/0xf0
[ 1158.307310] ? kernel_text_address+0xec/0x100
[ 1158.317155] ? arch_stack_walk+0x92/0xe0
[ 1158.326497] ? __kernel_text_address+0xe/0x30
[ 1158.336213] ? unwind_get_return_address+0x2f/0x50
[ 1158.346267] ? create_prof_cpu_mask+0x20/0x20
[ 1158.355936] ? arch_stack_walk+0x92/0xe0
[ 1158.365117] ? stack_trace_save+0x8a/0xb0
[ 1158.374272] ? stack_trace_consume_entry+0x80/0x80
[ 1158.384226] ? match_held_lock+0x33/0x210
[ 1158.393216] ? kasan_unpoison_shadow+0x30/0x40
[ 1158.402593] rtnl_newlink+0x53/0x80
[ 1158.410925] rtnetlink_rcv_msg+0x3a5/0x600
[ 1158.419777] ? validate_linkmsg+0x400/0x400
[ 1158.428620] ? find_held_lock+0x6d/0xd0
[ 1158.437117] ? match_held_lock+0x1b/0x210
[ 1158.445760] ? validate_linkmsg+0x400/0x400
[ 1158.454642] netlink_rcv_skb+0xc7/0x1f0
[ 1158.463150] ? netlink_ack+0x470/0x470
[ 1158.471538] ? netlink_deliver_tap+0x1f3/0x5a0
[ 1158.480607] netlink_unicast+0x2ae/0x350
[ 1158.489099] ? netlink_attachskb+0x340/0x340
[ 1158.497935] ? _copy_from_iter_full+0xde/0x3b0
[ 1158.506945] ? __virt_addr_valid+0xb6/0xf0
[ 1158.515578] ? __check_object_size+0x159/0x240
[ 1158.524515] netlink_sendmsg+0x4d3/0x630
[ 1158.532879] ? netlink_unicast+0x350/0x350
[ 1158.541400] ? netlink_unicast+0x350/0x350
[ 1158.549805] sock_sendmsg+0x94/0xa0
[ 1158.557561] ___sys_sendmsg+0x49d/0x570
[ 1158.565625] ? copy_msghdr_from_user+0x210/0x210
[ 1158.574457] ? __fput+0x1e2/0x330
[ 1158.581948] ? __kasan_slab_free+0x130/0x180
[ 1158.590407] ? kmem_cache_free+0xb6/0x2d0
[ 1158.598574] ? mark_lock+0xc7/0x790
[ 1158.606177] ? task_work_run+0xcf/0x100
[ 1158.614165] ? exit_to_usermode_loop+0x102/0x110
[ 1158.622954] ? __lock_acquire+0x963/0x1ee0
[ 1158.631199] ? lockdep_hardirqs_on+0x260/0x260
[ 1158.639777] ? match_held_lock+0x1b/0x210
[ 1158.647918] ? lockdep_hardirqs_on+0x260/0x260
[ 1158.656501] ? match_held_lock+0x1b/0x210
[ 1158.664643] ? __fget_light+0xa6/0xe0
[ 1158.672423] ? __sys_sendmsg+0xd2/0x150
[ 1158.680334] __sys_sendmsg+0xd2/0x150
[ 1158.688063] ? __ia32_sys_shutdown+0x30/0x30
[ 1158.696435] ? lock_downgrade+0x2e0/0x2e0
[ 1158.704541] ? mark_held_locks+0x1a/0x90
[ 1158.712611] ? mark_held_locks+0x1a/0x90
[ 1158.720619] ? do_syscall_64+0x1e/0x2c0
[ 1158.728530] do_syscall_64+0x78/0x2c0
[ 1158.736254] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 1158.745414] RIP: 0033:0x7f62d505cb87
[ 1158.753070] Code: 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 80 00 00 00 00 8b 05 6a 2b 2c 00 48 63 d2 48 63 ff 85 c0 75 18 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 59 f3 c3 0f 1f 80 00 00[87/1817]
48 89 f3 48
[ 1158.780924] RSP: 002b:00007fffd9832268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 1158.793204] RAX: ffffffffffffffda RBX: 000000005d26048f RCX: 00007f62d505cb87
[ 1158.805111] RDX: 0000000000000000 RSI: 00007fffd98322d0 RDI: 0000000000000003
[ 1158.817055] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000006
[ 1158.828987] R10: 00007f62d50ce260 R11: 0000000000000246 R12: 0000000000000001
[ 1158.840909] R13: 000000000067e540 R14: 0000000000000000 R15: 000000000067ed20
[ 1158.852873] ==================================================================
Introduce new function tcf_block_non_null_shared() that verifies block
pointer before dereferencing it to obtain index. Use the function in
tc_indr_block_ing_cmd() to prevent NULL pointer dereference.
Fixes: 955bcb6ea0df ("drivers: net: use flow block API")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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headroom
When a vport is deleted, the maximum headroom size would be changed.
If the vport which has the largest headroom is deleted,
the new max_headroom would be set.
But, if the new headroom size is equal to the old headroom size,
updating routine is unnecessary.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Tested-by: Greg Rose <gvrose8192@gmail.com>
Reviewed-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux
Santosh Shilimkar says:
====================
rds fixes
Few rds fixes which makes rds rdma transport reliably working on mainline
First two fixes are applicable to v4.11+ stable versions and last
three patches applies to only v5.1 stable and current mainline.
Patchset is re-based against 'net' and also available on below tree
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Connections with legitimate tos values can get into usual connection
race. It can result in consumer reject. We don't want tos value or
protocol version to be demoted for such connections otherwise
piers would end up different tos values which can results in
no connection. Example a peer initiated connection with say
tos 8 while usual connection racing can get downgraded to tos 0
which is not desirable.
Patch fixes above issue introduced by commit
commit d021fabf525f ("rds: rdma: add consumer reject")
Reported-by: Yanjun Zhu <yanjun.zhu@oracle.com>
Tested-by: Yanjun Zhu <yanjun.zhu@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
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The proper "tos" value needs to be returned
to user-space (sockopt RDS_INFO_CONNECTIONS).
Fixes: 3eb450367d08 ("rds: add type of service(tos) infrastructure")
Signed-off-by: Gerd Rausch <gerd.rausch@oracle.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
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