The current_stateid is exported from nfs4state.c but not
declared in any of the headers. Add to nfs4_fs.h to
remove the following warning:
fs/nfs/nfs4state.c:80:20: warning: symbol 'current_stateid' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If nfs4_delegreturn_prepare needs to wait for a layoutreturn to complete
then make sure we drop the sequence slot if we hold it.
Fixes: 1c5bd76d17 ("pNFS: Enable layoutreturn operation for return-on-close")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the server returns a bad or dead session error, the we don't want
to update the session slot number, but just immediately schedule
recovery and allow it to proceed.
We can/should then remove handling in other places
Fixes: 3453d5708b ("NFSv4.1: Avoid false retries when RPC calls are interrupted")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
We shouldn't insert things into the NFSPROC4_CLNT enums, since that
causes the nfsstat array to be reordered.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Jon Hunter: "I have been tracking down another suspend/NFS related
issue where again I am seeing random delays exiting suspend. The delays
can be up to a couple minutes in the worst case and this is causing a
suspend test we have to fail."
Change the use of a deferrable work to a standard delayed one.
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Fixes: 7e0a0e38fc ("SUNRPC: Replace the queue timer with a delayed work function")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a tracepoint in nfs_fh_to_dentry() for debugging issues with bad
userspace filehandles.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the server returns NFS4ERR_OLD_STATEID, then just skip retrying the
GETATTR when replaying the delegreturn compound. We know nothing will
have changed on the server.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the server returns NFS4ERR_OLD_STATEID in response to our delegreturn,
we want to sync to the most recent seqid for the delegation stateid. However
if we are already at the most recent, we have two possibilities:
- an OPEN reply is still outstanding and will return a new seqid
- an earlier OPEN reply was dropped on the floor due to a timeout.
In the latter case, we may end up unable to complete the delegreturn,
so we want to bump the seqid to a value greater than the cached value.
While this may cause us to lose the delegation in the former case,
it should now be safe to assume that the client will replay the OPEN
if necessary in order to get a new valid stateid.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the server returns the same delegation in an open that we just used
in a delegreturn, we need to ensure we don't apply that stateid if
the delegreturn has freed it on the server.
To do so, we ensure that we do not free the storage for the delegation
until either it is replaced by a new one, or we throw the inode out of
cache.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
In nfs_inode_find_state_and_recover() we want to mark for recovery
only those stateids that match or are older than the supplied
stateid parameter.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Fix the checks in nfs4_inode_make_writeable() to ignore the case where
we hold no delegations. Currently, in such a case, we automatically
flush writes.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Ensure that we check that the delegation is valid in
nfs4_return_incompatible_delegation() before we try to return it.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the delegation was revoked, or is already being returned, just
clear the NFS_DELEGATION_RETURN and NFS_DELEGATION_RETURN_IF_CLOSED
flags and keep going.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If we revoke a delegation, but the stateid's seqid is newer, then
ensure we update the seqid when marking the delegation as revoked.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the server sent us a new delegation stateid that is more recent than
the one that got revoked, then clear the NFS_DELEGATION_REVOKED flag.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a check to ensure that we haven't already removed the delegation
from the inode after we take all the relevant locks.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Rename nfs_inode_return_delegation_noreclaim() to
nfs_inode_evict_delegation(), which better describes what it
does.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If we're processsing a delegation recall, ignore the delegations that
have already been revoked or returned.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the delegation is marked as being revoked, then don't use it in
the open state structure.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
NFSv2, v3 and NFSv4 servers often have duplicate replay caches that look
at the source port when deciding whether or not an RPC call is a replay
of a previous call. This requires clients to perform strange TCP gymnastics
in order to ensure that when they reconnect to the server, they bind
to the same source port.
NFSv4.1 and NFSv4.2 have sessions that provide proper replay semantics,
that do not look at the source port of the connection. This patch therefore
ensures they can ignore the rebind requirement.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If a NFSv3 server is being used as both a DS and as a regular NFSv3 server,
we may want to keep the IO traffic on a separate TCP connection, since
it will typically have very different timeout characteristics.
This patch therefore sets up a flag to separate the two modes of operation
for the nfs_client.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Connecting to the DS is a non-interactive, asynchronous task, so there is
no reason to fire up an extra RPC null ping in order to ensure that the
server is up.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a flag to tell the nfs_client it should set RPC_CLNT_CREATE_NOPING when
creating the rpc client.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Simplify the struct iattr timestamp encoding by skipping the step of
an intermediate struct timespec.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Simplify the struct iattr timestamp encoding by skipping the step of
an intermediate struct timespec.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Encode the mtime correctly.
Fixes: 95582b0083 ("vfs: change inode times to use struct timespec64")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Convert the NFSv4 callbacks to use struct timestamp64, rather than
truncating times to 32-bit values.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
NFSv4 supports 64-bit timestamps, so there is no point in converting
the struct iattr timestamps to 32-bits before encoding.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
NFSv4 supports 64-bit times, so we should switch to using struct
timespec64 when decoding attributes.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If we set nfs_mountpoint_expiry_timeout to a negative value, then
allow that to imply that we do not expire NFSv4 submounts.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
The USB sub-maintainers woke up this past week and sent a bunch of tiny
fixes. Here are a lot of small patches that that resolve a bunch of
reported issues in the USB core, drivers, serial drivers, gadget
drivers, and of course, xhci :)
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"The USB sub-maintainers woke up this past week and sent a bunch of
tiny fixes. Here are a lot of small patches that that resolve a bunch
of reported issues in the USB core, drivers, serial drivers, gadget
drivers, and of course, xhci :)
All of these have been in linux-next with no reported issues"
* tag 'usb-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (31 commits)
usb: dwc3: gadget: fix race when disabling ep with cancelled xfers
usb: cdns3: gadget: Fix g_audio use case when connected to Super-Speed host
usb: cdns3: gadget: reset EP_CLAIMED flag while unloading
USB: serial: whiteheat: fix line-speed endianness
USB: serial: whiteheat: fix potential slab corruption
USB: gadget: Reject endpoints with 0 maxpacket value
UAS: Revert commit 3ae62a4209 ("UAS: fix alignment of scatter/gather segments")
usb-storage: Revert commit 747668dbc0 ("usb-storage: Set virt_boundary_mask to avoid SG overflows")
usbip: Fix free of unallocated memory in vhci tx
usbip: tools: Fix read_usb_vudc_device() error path handling
usb: xhci: fix __le32/__le64 accessors in debugfs code
usb: xhci: fix Immediate Data Transfer endianness
xhci: Fix use-after-free regression in xhci clear hub TT implementation
USB: ldusb: fix control-message timeout
USB: ldusb: use unsigned size format specifiers
USB: ldusb: fix ring-buffer locking
USB: Skip endpoints with 0 maxpacket length
usb: cdns3: gadget: Don't manage pullups
usb: dwc3: remove the call trace of USBx_GFLADJ
usb: gadget: configfs: fix concurrent issue between composite APIs
...
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Merge tag '5.4-rc6-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fix from Steve French:
"A small smb3 memleak fix"
* tag '5.4-rc6-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6:
fix memory leak in large read decrypt offload
It turned out that relying solely on drivers storing all the PWM state
in hardware was a little premature and causes a number of subtle (and
some not so subtle) regressions. Revert the offending patch for now.
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Merge tag 'pwm/for-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm fixes from Thierry Reding:
"It turned out that relying solely on drivers storing all the PWM state
in hardware was a little premature and causes a number of subtle (and
some not so subtle) regressions. Revert the offending patch for now"
* tag 'pwm/for-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
Revert "pwm: Let pwm_get_state() return the last implemented state"
Nine changes, eight in drivers [ufs, target, lpfc x 2, qla2xxx x 4]
and one core change in sd that fixes an I/O failure on DIF type 3
devices.
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:
"Nine changes, eight in drivers [ufs, target, lpfc x 2, qla2xxx x 4]
and one core change in sd that fixes an I/O failure on DIF type 3
devices"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: stop timer in shutdown path
scsi: sd: define variable dif as unsigned int instead of bool
scsi: target: cxgbit: Fix cxgbit_fw4_ack()
scsi: qla2xxx: Fix partial flash write of MBI
scsi: qla2xxx: Initialized mailbox to prevent driver load failure
scsi: lpfc: Honor module parameter lpfc_use_adisc
scsi: ufs-bsg: Wake the device before sending raw upiu commands
scsi: lpfc: Check queue pointer before use
scsi: qla2xxx: fixup incorrect usage of host_byte
Our recent cleanup of EEH led to an oops on bare metal machines when the cxl
(CAPI) driver creates virtual devices for an attached FPGA accelerator.
The "secure virtual machine" support we added in v5.4 had a bug if the kernel
was relocated (moved during boot), in those cases the signature of the kernel
text wouldn't verify and the Ultravisor would refuse to run the VM.
A recent change to disable interrupts before calling arch_cpu_idle_dead() caused
a WARN_ON() in our bare metal CPU offline code to always trigger.
The KUAP (SMAP) support we added for 32-bit Book3S had a bug if the address
range crossed a segment (256MB) boundary which could lead to spurious faults.
Thanks to:
Christophe Leroy, Frederic Barrat, Michael Anderson, Nicholas Piggin, Sam
Bobroff, Thiago Jung Bauermann.
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Merge tag 'powerpc-5.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Our recent cleanup of EEH led to an oops on bare metal machines when
the cxl (CAPI) driver creates virtual devices for an attached FPGA
accelerator.
The "secure virtual machine" support we added in v5.4 had a bug if the
kernel was relocated (moved during boot), in those cases the signature
of the kernel text wouldn't verify and the Ultravisor would refuse to
run the VM.
A recent change to disable interrupts before calling
arch_cpu_idle_dead() caused a WARN_ON() in our bare metal CPU offline
code to always trigger.
The KUAP (SMAP) support we added for 32-bit Book3S had a bug if the
address range crossed a segment (256MB) boundary which could lead to
spurious faults.
Thanks to: Christophe Leroy, Frederic Barrat, Michael Anderson,
Nicholas Piggin, Sam Bobroff, Thiago Jung Bauermann"
* tag 'powerpc-5.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/powernv: Fix CPU idle to be called with IRQs disabled
powerpc/prom_init: Undo relocation before entering secure mode
powerpc/powernv/eeh: Fix oops when probing cxl devices
powerpc/32s: fix allow/prevent_user_access() when crossing segment boundaries.
- Fix cpu idle time accounting.
- Fix stack unwinder case when both pt_regs and sp are specified.
- Fix information leak via cmm timeout proc handler.
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Merge tag 's390-5.4-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix cpu idle time accounting
- Fix stack unwinder case when both pt_regs and sp are specified
- Fix information leak via cmm timeout proc handler
* tag 's390-5.4-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/idle: fix cpu idle time calculation
s390/unwind: fix mixing regs and sp
s390/cmm: fix information leak in cmm_timeout_handler()
Pull networking fixes from David Miller:
1) Fix free/alloc races in batmanadv, from Sven Eckelmann.
2) Several leaks and other fixes in kTLS support of mlx5 driver, from
Tariq Toukan.
3) BPF devmap_hash cost calculation can overflow on 32-bit, from Toke
Høiland-Jørgensen.
4) Add an r8152 device ID, from Kazutoshi Noguchi.
5) Missing include in ipv6's addrconf.c, from Ben Dooks.
6) Use siphash in flow dissector, from Eric Dumazet. Attackers can
easily infer the 32-bit secret otherwise etc.
7) Several netdevice nesting depth fixes from Taehee Yoo.
8) Fix several KCSAN reported errors, from Eric Dumazet. For example,
when doing lockless skb_queue_empty() checks, and accessing
sk_napi_id/sk_incoming_cpu lockless as well.
9) Fix jumbo packet handling in RXRPC, from David Howells.
10) Bump SOMAXCONN and tcp_max_syn_backlog values, from Eric Dumazet.
11) Fix DMA synchronization in gve driver, from Yangchun Fu.
12) Several bpf offload fixes, from Jakub Kicinski.
13) Fix sk_page_frag() recursion during memory reclaim, from Tejun Heo.
14) Fix ping latency during high traffic rates in hisilicon driver, from
Jiangfent Xiao.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (146 commits)
net: fix installing orphaned programs
net: cls_bpf: fix NULL deref on offload filter removal
selftests: bpf: Skip write only files in debugfs
selftests: net: reuseport_dualstack: fix uninitalized parameter
r8169: fix wrong PHY ID issue with RTL8168dp
net: dsa: bcm_sf2: Fix IMP setup for port different than 8
net: phylink: Fix phylink_dbg() macro
gve: Fixes DMA synchronization.
inet: stop leaking jiffies on the wire
ixgbe: Remove duplicate clear_bit() call
Documentation: networking: device drivers: Remove stray asterisks
e1000: fix memory leaks
i40e: Fix receive buffer starvation for AF_XDP
igb: Fix constant media auto sense switching when no cable is connected
net: ethernet: arc: add the missed clk_disable_unprepare
igb: Enable media autosense for the i350.
igb/igc: Don't warn on fatal read failures when the device is removed
tcp: increase tcp_max_syn_backlog max value
net: increase SOMAXCONN to 4096
netdevsim: Fix use-after-free during device dismantle
...
Stable bugfixes:
- Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
Other fixes:
- The TCP back channel mustn't disappear while requests are outstanding
- The RDMA back channel mustn't disappear while requests are outstanding
- Destroy the back channel when we destroy the host transport
- Don't allow a cached open with a revoked delegation
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Merge tag 'nfs-for-5.4-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client bugfixes from Anna Schumaker:
"This contains two delegation fixes (with the RCU lock leak fix marked
for stable), and three patches to fix destroying the the sunrpc back
channel.
Stable bugfixes:
- Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
Other fixes:
- The TCP back channel mustn't disappear while requests are
outstanding
- The RDMA back channel mustn't disappear while requests are
outstanding
- Destroy the back channel when we destroy the host transport
- Don't allow a cached open with a revoked delegation"
* tag 'nfs-for-5.4-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
NFSv4: Don't allow a cached open with a revoked delegation
SUNRPC: Destroy the back channel when we destroy the host transport
SUNRPC: The RDMA back channel mustn't disappear while requests are outstanding
SUNRPC: The TCP back channel mustn't disappear while requests are outstanding
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Merge tag 'for-linus-20191101' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Two small nvme fixes, one is a fabrics connection fix, the other one
a cleanup made possible by that fix (Anton, via Keith)
- Fix requeue handling in umb ubd (Anton)
- Fix spin_lock_irq() nesting in blk-iocost (Dan)
- Three small io_uring fixes:
- Install io_uring fd after done with ctx (me)
- Clear ->result before every poll issue (me)
- Fix leak of shadow request on error (Pavel)
* tag 'for-linus-20191101' of git://git.kernel.dk/linux-block:
iocost: don't nest spin_lock_irq in ioc_weight_write()
io_uring: ensure we clear io_kiocb->result before each issue
um-ubd: Entrust re-queue to the upper layers
nvme-multipath: remove unused groups_only mode in ana log
nvme-multipath: fix possible io hang after ctrl reconnect
io_uring: don't touch ctx in setup after ring fd install
io_uring: Fix leaked shadow_req
One fix for PCIe users:
- Fix legacy PCI I/O port access emulation
One set of cleanups:
- Resolve most of the warnings generated by sparse across arch/riscv.
No functional changes
And one MAINTAINERS update:
- Update Palmer's E-mail address
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Merge tag 'riscv/for-v5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
"One fix for PCIe users:
- Fix legacy PCI I/O port access emulation
One set of cleanups:
- Resolve most of the warnings generated by sparse across arch/riscv.
No functional changes
And one MAINTAINERS update:
- Update Palmer's E-mail address"
* tag 'riscv/for-v5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
MAINTAINERS: Change to my personal email address
RISC-V: Add PCIe I/O BAR memory mapping
riscv: for C functions called only from assembly, mark with __visible
riscv: fp: add missing __user pointer annotations
riscv: add missing header file includes
riscv: mark some code and data as file-static
riscv: init: merge split string literals in preprocessor directive
riscv: add prototypes for assembly language functions from head.S
Pull parisc fix from Helge Deller:
"Fix a parisc kernel crash with ftrace functions when compiled without
frame pointers"
* 'parisc-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: fix frame pointer in ftrace_regs_caller()
Ben Dooks
Trond Myklebust
Linus Torvalds