Jens Axboe [Thu, 17 May 2018 16:31:51 +0000 (18:31 +0200)]
nvme-pci: split the nvme queue lock into submission and completion locks
This is now feasible. We protect the submission queue ring with
->sq_lock, and the completion side with ->cq_lock.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Jens Axboe [Thu, 17 May 2018 16:31:50 +0000 (18:31 +0200)]
nvme-pci: handle completions outside of the queue lock
Split the completion of events into a two part process:
1) Reap the events inside the queue lock
2) Complete the events outside the queue lock
Since we never wrap the queue, we can access it locklessly after we've
updated the completion queue head. This patch started off with batching
events on the stack, but with this trick we don't have to. Keith Busch
<keith.busch@intel.com> came up with that idea.
Note that this kills the ->cqe_seen as well. I haven't been able to
trigger any ill effects of this. If we do race with polling every so
often, it should be rare enough NOT to trigger any issues.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Keith Busch <keith.busch@intel.com>
[hch: refactored, restored poll early exit optimization]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Jens Axboe [Thu, 17 May 2018 16:31:49 +0000 (18:31 +0200)]
nvme-pci: move ->cq_vector == -1 check outside of ->q_lock
We only clear it dynamically in nvme_suspend_queue(). When we do, ensure
to do a full flush so that any nvme_queue_rq() invocation will see it.
Ideally we'd kill this check completely, but we're using it to flush
requests on a dying queue.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Jens Axboe [Thu, 17 May 2018 16:31:48 +0000 (18:31 +0200)]
nvme-pci: remove cq check after submission
We always check the completion queue after submitting, but in my testing
this isn't a win even on DRAM/xpoint devices. In some cases it's
actually worse. Kill it.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Christoph Hellwig [Fri, 18 May 2018 14:37:04 +0000 (08:37 -0600)]
nvme-pci: simplify nvme_cqe_valid
We always look at the current CQ head and phase, so don't pass these
as separate arguments, and rename the function to nvme_cqe_pending.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Christoph Hellwig [Thu, 17 May 2018 16:31:46 +0000 (18:31 +0200)]
nvme: mark the result argument to nvme_complete_async_event volatile
We'll need that in the PCIe driver soon as we'll read it straight off the
CQ.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Keith Busch [Thu, 10 May 2018 14:34:20 +0000 (08:34 -0600)]
nvme/pci: Sync controller reset for AER slot_reset
AER handling expects a successful return from slot_reset means the
driver made the device functional again. The nvme driver had been using
an asynchronous reset to recover the device, so the device
may still be initializing after control is returned to the
AER handler. This creates problems for subsequent event handling,
causing the initializion to fail.
This patch fixes that by syncing the controller reset before returning
to the AER driver, and reporting the true state of the reset.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199657
Reported-by: Alex Gagniuc <mr.nuke.me@gmail.com>
Cc: Sinan Kaya <okaya@codeaurora.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Tested-by: Alex Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Keith Busch [Mon, 7 May 2018 14:30:24 +0000 (08:30 -0600)]
nvme/pci: Hold controller reference during async probe
It is possible the driver's remove may have freed the controller if
the remove callback is invoked prior to the async_schedule starting
the reset_work. This patch fixes that by holding a reference on the
controller.
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Jens Axboe [Wed, 2 May 2018 17:06:54 +0000 (11:06 -0600)]
nvme: only reconfigure discard if necessary
Currently nvme reconfigures discard for every disk revalidation. This
is problematic because any O_WRONLY or O_RDWR open will trigger a
partition scan through udev/systemd, and we will reconfigure discard.
This blows away any user settings, like discard_max_bytes.
Only re-configure the user settable settings if we need to.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
[removed redundant queue flag setting]
Signed-off-by: Keith Busch <keith.busch@intel.com>
Keith Busch [Fri, 27 Apr 2018 19:42:52 +0000 (13:42 -0600)]
nvme/pci: Use async_schedule for initial reset work
This patch schedules the initial controller reset in an async_domain
so that it can be synchronized from wait_for_device_probe(). This way
the kernel waits for the initial nvme controller scan to complete for
all devices before proceeding with the boot sequence, which may have
nvme dependencies.
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Wei Xu [Thu, 26 Apr 2018 20:59:19 +0000 (14:59 -0600)]
nvme: lightnvm: add granby support
Add a new lightnvm quirk to identify CNEX’s Granby controller.
Signed-off-by: Wei Xu <wxu@cnexlabs.com>
Reviewed-by: Javier González <javier@cnexlabs.com>
Reviewed-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Micah Parrish [Thu, 12 Apr 2018 19:25:25 +0000 (13:25 -0600)]
NVMe: Add Quirk Delay before CHK RDY for Seagate Nytro Flash Storage
Add Seagate Nytro Flash Storage nvme drive to quirk list for
NVME_QUIRK_DELAY_BEFORE_CHK_RDY, which solves a bug where the drive is
probed on hot-add before the firmare is ready, I/O errors are generated
while reading sector 0, and linux is "unable to read partition table".
Signed-off-by: Micah Parrish <micah.parrish@hpe.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Johannes Thumshirn [Thu, 26 Apr 2018 20:25:15 +0000 (14:25 -0600)]
nvme: change order of qid and cmdid in completion trace
Keith reported that command submission and command completion
tracepoints have the order of the cmdid and qid fields swapped.
While it isn't easily possible to change the command submission
tracepoint, as there is a regression test parsing it in blktests we
can swap the command completion tracepoint to have the fields aligned.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reported-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Johannes Thumshirn [Thu, 19 Apr 2018 17:43:42 +0000 (19:43 +0200)]
nvme: fc: provide a descriptive error
Provide a descriptive error in case an lport to rport association
isn't found when creating the FC-NVME controller.
Currently it's very hard to debug the reason for a failed connect
attempt without a look at the source.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Linus Torvalds [Thu, 26 Apr 2018 04:23:38 +0000 (21:23 -0700)]
Merge tag 'for_v4.17-rc3' of git://git./linux/kernel/git/jack/linux-fs
Pull fsnotify fix from Jan Kara:
"A fix of a fsnotify race causing panics / softlockups"
* tag 'for_v4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fsnotify: Fix fsnotify_mark_connector race
Linus Torvalds [Thu, 26 Apr 2018 04:13:40 +0000 (21:13 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Eight bug fixes, one spelling update and one tracepoint addition.
The most serious is probably the mptsas write same fix because it
means anyone using these controllers sees errors when modern
filesystems try to issue discards"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: fix crash with iscsi target and dvd
scsi: sd_zbc: Avoid that resetting a zone fails sporadically
scsi: sd: Defer spinning up drive while SANITIZE is in progress
scsi: megaraid_sas: Do not log an error if FW successfully initializes.
scsi: ufs: add trace event for ufs upiu
scsi: core: remove reference to scsi_show_extd_sense()
scsi: mptsas: Disable WRITE SAME
scsi: fnic: fix spelling mistake in fnic stats "Abord" -> "Abort"
scsi: scsi_debug: IMMED related delay adjustments
scsi: iscsi: respond to netlink with unicast when appropriate
Linus Torvalds [Thu, 26 Apr 2018 04:05:15 +0000 (21:05 -0700)]
Merge tag 'for-linus-
20180425' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"I ended up sitting on this about a week longer than I wanted to, since
we were hashing out details with a timeout change. I've now killed
that patch, so we can flush the existing queue in due time.
This contains:
- Fix for an old regression, where entering the queue can be
disturbed by a signal to the process. This can cause spurious EIO.
Fix from Alan Jenkins.
- cdrom information leak fix from Dan.
- Trivial helper for testing queue FUA from Dave Chinner, part of his
O_DIRECT FUA series.
- Series of swim fixes from Finn that actually makes it work again.
- Loop O_DIRECT corruption fix, which caused data corruption in
production for us. From me.
- BFQ crash fix from me.
- bcache maintainer update. Michael no longer has the time to do it,
Coly has stepped up to serve as the new maintainer.
- blkcg locking fixes from Jiang Biao.
- Revert of a change from this merge window from Ming, that causes an
issue on some hardware.
- Minor clarification doc addition from Linus Walleij"
* tag 'for-linus-
20180425' of git://git.kernel.dk/linux-block: (22 commits)
Revert "blk-mq: remove code for dealing with remapping queue"
block: mq: Add some minor doc for core structs
bcache: mark Coly Li as bcache maintainer
MAINTAINERS: Remove me as maintainer of bcache
blkcg: init root blkcg_gq under lock
blkcg: small fix on comment in blkcg_init_queue
blkcg: don't hold blkcg lock when deactivating policy
block: add blk_queue_fua() helper function
cdrom: information leak in cdrom_ioctl_media_changed()
bfq-iosched: ensure to clear bic/bfqq pointers when preparing request
blk-mq: start request gstate with gen 1
block/swim: Select appropriate drive on device open
block/swim: Fix IO error at end of medium
block/swim: Check drive type
block/swim: Rename macros to avoid inconsistent inverted logic
block/swim: Don't log an error message for an invalid ioctl
block/swim: Remove extra put_disk() call from error path
block/swim: Fix array bounds check
m68k/mac: Don't remap SWIM MMIO region
loop: handle short DIO reads
...
Linus Torvalds [Thu, 26 Apr 2018 03:27:23 +0000 (20:27 -0700)]
Merge tag 'riscv-for-linus-4.17-rc3' of git://git./linux/kernel/git/palmer/riscv-linux
Pull RISC-V fixes from Palmer Dabbelt:
"This contains three small fixes related to the RISC-V port that I'd
like to target for 4.17-rc3:
- a Kconfig cleanup to select DMA_DIRECT_OPS instead of redefining it
in arch/riscv
- the removal of asm/handle_irq.h, which doesn't exist, from our arch
header list
- the addition of "-no-pie" the link rules for our VDSO-related
files, which fixes the build on systems where PIE is enabled by
default"
* tag 'riscv-for-linus-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
RISC-V: build vdso-dummy.o with -no-pie
riscv: there is no <asm/handle_irq.h>
riscv: select DMA_DIRECT_OPS instead of redefining it
Linus Torvalds [Wed, 25 Apr 2018 18:48:09 +0000 (11:48 -0700)]
Merge tag 'dma-mapping-4.17-3' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
"A few small dma-mapping fixes for Linux 4.17-rc3:
- don't loop to try GFP_DMA allocations if ZONE_DMA is not actually
enabled (regression in 4.16)
- don't try to do virt_to_page before we know we actuall have a valid
page in dma_common_mmap
- a comment fixup related to the above fix"
* tag 'dma-mapping-4.17-3' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: postpone cpu addr translation on mmap
dma-coherent: clarify dma_mmap_from_dev_coherent documentation
dma-direct: don't retry allocation for no-op GFP_DMA
Ming Lei [Tue, 24 Apr 2018 20:01:44 +0000 (04:01 +0800)]
Revert "blk-mq: remove code for dealing with remapping queue"
This reverts commit
37c7c6c76d431dd7ef9c29d95f6052bd425f004c.
Turns out some drivers(most are FC drivers) may not use managed
IRQ affinity, and has their customized .map_queues meantime, so
still keep this code for avoiding regression.
Reported-by: Laurence Oberman <loberman@redhat.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Cc: Ewan Milne <emilne@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Linus Walleij [Fri, 20 Apr 2018 08:29:51 +0000 (10:29 +0200)]
block: mq: Add some minor doc for core structs
As it came up in discussion on the mailing list that the semantic
meaning of 'blk_mq_ctx' and 'blk_mq_hw_ctx' isn't completely
obvious to everyone, let's add some minimal kerneldoc for a
starter.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Fri, 20 Apr 2018 03:07:14 +0000 (21:07 -0600)]
bcache: mark Coly Li as bcache maintainer
Since Michael had to step back, Coly has agreed to be the new
maintainer. Mark him as such.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Michael Lyle [Thu, 19 Apr 2018 17:59:31 +0000 (10:59 -0700)]
MAINTAINERS: Remove me as maintainer of bcache
Too much to do with other projects. I've enjoyed working with everyone
here, and hope to occasionally contribute on bcache.
Signed-off-by: Michael Lyle <mlyle@lyle.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Linus Torvalds [Wed, 25 Apr 2018 00:58:51 +0000 (17:58 -0700)]
Merge branch 'userns-linus' of git://git./linux/kernel/git/ebiederm/user-namespace
Pull userns bug fix from Eric Biederman:
"Just a small fix to properly set the return code on error"
* 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
commoncap: Handle memory allocation failure.
Linus Torvalds [Tue, 24 Apr 2018 21:16:40 +0000 (14:16 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Fix rtnl deadlock in ipvs, from Julian Anastasov.
2) s390 qeth fixes from Julian Wiedmann (control IO completion stalls,
bad MAC address update sequence, request side races on command IO
timeouts).
3) Handle seq_file overflow properly in l2tp, from Guillaume Nault.
4) Fix VLAN priority mappings in cpsw driver, from Ivan Khoronzhuk.
5) Packet scheduler ife action fixes (malformed TLV lengths, etc.) from
Alexander Aring.
6) Fix out of bounds access in tcp md5 option parser, from Jann Horn.
7) Missing netlink attribute policies in rtm_ipv6_policy table, from
Eric Dumazet.
8) Missing socket address length checks in l2tp and pppoe connect, from
Guillaume Nault.
9) Fix netconsole over team and bonding, from Xin Long.
10) Fix race with AF_PACKET socket state bitfields, from Willem de
Bruijn.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (51 commits)
ice: Fix insufficient memory issue in ice_aq_manage_mac_read
sfc: ARFS filter IDs
net: ethtool: Add missing kernel doc for FEC parameters
packet: fix bitfield update race
ice: Do not check INTEVENT bit for OICR interrupts
ice: Fix incorrect comment for action type
ice: Fix initialization for num_nodes_added
igb: Fix the transmission mode of queue 0 for Qav mode
ixgbevf: ensure xdp_ring resources are free'd on error exit
team: fix netconsole setup over team
amd-xgbe: Only use the SFP supported transceiver signals
amd-xgbe: Improve KR auto-negotiation and training
amd-xgbe: Add pre/post auto-negotiation phy hooks
pppoe: check sockaddr length in pppoe_connect()
l2tp: check sockaddr length in pppol2tp_connect()
net: phy: marvell: clear wol event before setting it
ipv6: add RTA_TABLE and RTA_PREFSRC to rtm_ipv6_policy
bonding: do not set slave_dev npinfo before slave_enable_netpoll in bond_enslave
tcp: don't read out-of-bounds opsize
ibmvnic: Clean actual number of RX or TX pools
...
David S. Miller [Tue, 24 Apr 2018 20:17:59 +0000 (16:17 -0400)]
Merge branch '1GbE' of git://git./linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2018-04-24
This series contains fixes to ixgbevf, igb and ice drivers.
Colin Ian King fixes the return value on error for the new XDP support
that went into ixgbevf for 4.17.
Vinicius provides a fix for queue 0 for igb, which was not receiving all
the credits it needed when QAV mode was enabled.
Anirudh provides several fixes for the new ice driver, starting with
properly initializing num_nodes_added to zero. Fixed up a code comment
to better reflect what is really going on in the code. Fixed how to
detect if an OICR interrupt has occurred to a more reliable method.
Md Fahad fixes the ice driver to allocate the right amount of memory
when reading and storing the devices MAC addresses. The device can have
up to 2 MAC addresses (LAN and WoL), while WoL is currently not
supported, we need to ensure it can be properly handled when support is
added.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Md Fahad Iqbal Polash [Mon, 16 Apr 2018 17:07:03 +0000 (10:07 -0700)]
ice: Fix insufficient memory issue in ice_aq_manage_mac_read
For the MAC read operation, the device can return up to two (LAN and WoL)
MAC addresses. Without access to adequate memory, the device will return
an error. Fixed this by allocating the right amount of memory. Also, logic
to detect and copy the LAN MAC address into the port_info structure has
been added. Note that the WoL MAC address is ignored currently as the WoL
feature isn't supported yet.
Fixes: dc49c7723676 ("ice: Get MAC/PHY/link info and scheduler topology")
Signed-off-by: Md Fahad Iqbal Polash <md.fahad.iqbal.polash@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Aurelien Jarno [Wed, 21 Mar 2018 21:26:31 +0000 (22:26 +0100)]
RISC-V: build vdso-dummy.o with -no-pie
Debian toolcahin defaults to PIE, and I guess that will also be the case
of most distributions. This causes the following build failure:
AS arch/riscv/kernel/vdso/getcpu.o
AS arch/riscv/kernel/vdso/flush_icache.o
VDSOLD arch/riscv/kernel/vdso/vdso.so.dbg
OBJCOPY arch/riscv/kernel/vdso/vdso.so
AS arch/riscv/kernel/vdso/vdso.o
VDSOLD arch/riscv/kernel/vdso/vdso-dummy.o
LD arch/riscv/kernel/vdso/vdso-syms.o
riscv64-linux-gnu-ld: attempted static link of dynamic object `arch/riscv/kernel/vdso/vdso-dummy.o'
make[2]: *** [arch/riscv/kernel/vdso/Makefile:43: arch/riscv/kernel/vdso/vdso-syms.o] Error 1
make[1]: *** [scripts/Makefile.build:575: arch/riscv/kernel/vdso] Error 2
make: *** [Makefile:1018: arch/riscv/kernel] Error 2
While the root Makefile correctly passes "-fno-PIE" to build individual
object files, the RISC-V kernel also builds vdso-dummy.o as an
executable, which is therefore linked as PIE. Fix that by updating this
specific link rule to also include "-no-pie".
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Christoph Hellwig [Mon, 16 Apr 2018 06:57:52 +0000 (08:57 +0200)]
riscv: there is no <asm/handle_irq.h>
So don't list it as generic-y.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Christoph Hellwig [Mon, 16 Apr 2018 12:53:51 +0000 (14:53 +0200)]
riscv: select DMA_DIRECT_OPS instead of redefining it
DMA_DIRECT_OPS is defined in lib/Kconfig, so don't duplicate it in
arch/riscv/Kconfig.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Edward Cree [Tue, 24 Apr 2018 16:09:30 +0000 (17:09 +0100)]
sfc: ARFS filter IDs
Associate an arbitrary ID with each ARFS filter, allowing to properly query
for expiry. The association is maintained in a hash table, which is
protected by a spinlock.
v3: fix build warnings when CONFIG_RFS_ACCEL is disabled (thanks lkp-robot).
v2: fixed uninitialised variable (thanks davem and lkp-robot).
Fixes: 3af0f34290f6 ("sfc: replace asynchronous filter operations")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Mon, 23 Apr 2018 22:51:38 +0000 (15:51 -0700)]
net: ethtool: Add missing kernel doc for FEC parameters
While adding support for ethtool::get_fecparam and set_fecparam, kernel
doc for these functions was missed, add those.
Fixes: 1a5f3da20bd9 ("net: ethtool: add support for forward error correction modes")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Willem de Bruijn [Mon, 23 Apr 2018 21:37:03 +0000 (17:37 -0400)]
packet: fix bitfield update race
Updates to the bitfields in struct packet_sock are not atomic.
Serialize these read-modify-write cycles.
Move po->running into a separate variable. Its writes are protected by
po->bind_lock (except for one startup case at packet_create). Also
replace a textual precondition warning with lockdep annotation.
All others are set only in packet_setsockopt. Serialize these
updates by holding the socket lock. Analogous to other field updates,
also hold the lock when testing whether a ring is active (pg_vec).
Fixes: 8dc419447415 ("[PACKET]: Add optional checksum computation for recvmsg")
Reported-by: DaeRyong Jeong <threeearcat@gmail.com>
Reported-by: Byoungyoung Lee <byoungyoung@purdue.edu>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Shelton [Wed, 11 Apr 2018 19:21:33 +0000 (12:21 -0700)]
ice: Do not check INTEVENT bit for OICR interrupts
According to the hardware spec, checking the INTEVENT bit isn't a
reliable way to detect if an OICR interrupt has occurred. This is
because this bit can be cleared by the hardware/firmware before the
interrupt service routine has run. So instead, just check for OICR
events every time.
Fixes: 940b61af02f4 ("ice: Initialize PF and setup miscellaneous interrupt")
Signed-off-by: Ben Shelton <benjamin.h.shelton@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Anirudh Venkataramanan [Wed, 11 Apr 2018 17:41:47 +0000 (10:41 -0700)]
ice: Fix incorrect comment for action type
Action type 5 defines large action generic values. Fix comment to
reflect that better.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Anirudh Venkataramanan [Tue, 10 Apr 2018 17:49:49 +0000 (10:49 -0700)]
ice: Fix initialization for num_nodes_added
ice_sched_add_nodes_to_layer is used recursively, and so we start
with num_nodes_added being 0. This way, in case of an error or if
num_nodes is NULL, the function just returns 0 to indicate that no
nodes were added.
Fixes: 5513b920a4f7 ("ice: Update Tx scheduler tree for VSI multi-Tx queue support")
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Vinicius Costa Gomes [Sat, 31 Mar 2018 00:06:52 +0000 (17:06 -0700)]
igb: Fix the transmission mode of queue 0 for Qav mode
When Qav mode is enabled, queue 0 should be kept on Stream Reservation
mode. From the i210 datasheet, section 8.12.19:
"Note: Queue0 QueueMode must be set to 1b when TransmitMode is set to
Qav." ("QueueMode 1b" represents the Stream Reservation mode)
The solution is to give queue 0 the all the credits it might need, so
it has priority over queue 1.
A situation where this can happen is when cbs is "installed" only on
queue 1, leaving queue 0 alone. For example:
$ tc qdisc replace dev enp2s0 handle 100: parent root mqprio num_tc 3 \
map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@2 hw 0
$ tc qdisc replace dev enp2s0 parent 100:2 cbs locredit -1470 \
hicredit 30 sendslope -980000 idleslope 20000 offload 1
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Colin Ian King [Tue, 27 Mar 2018 14:21:48 +0000 (15:21 +0100)]
ixgbevf: ensure xdp_ring resources are free'd on error exit
The current error handling for failed resource setup for xdp_ring
data is a break out of the loop and returning 0 indicated everything
was OK, when in fact it is not. Fix this by exiting via the
error exit label err_setup_tx that will clean up the resources
correctly and return and error status.
Detected by CoverityScan, CID#
1466879 ("Logically dead code")
Fixes: 21092e9ce8b1 ("ixgbevf: Add support for XDP_TX action")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Xin Long [Tue, 24 Apr 2018 06:33:37 +0000 (14:33 +0800)]
team: fix netconsole setup over team
The same fix in Commit
dbe173079ab5 ("bridge: fix netconsole
setup over bridge") is also needed for team driver.
While at it, remove the unnecessary parameter *team from
team_port_enable_netpoll().
v1->v2:
- fix it in a better way, as does bridge.
Fixes: 0fb52a27a04a ("team: cleanup netpoll clode")
Reported-by: João Avelino Bellomo Filho <jbellomo@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 24 Apr 2018 01:24:23 +0000 (21:24 -0400)]
Merge branch 'amd-xgbe-fixes'
aTom Lendacky says:
====================
amd-xgbe: AMD XGBE driver fixes 2018-04-23
This patch series addresses some issues in the AMD XGBE driver.
The following fixes are included in this driver update series:
- Improve KR auto-negotiation and training (2 patches)
- Add pre and post auto-negotiation hooks
- Use the pre and post auto-negotiation hooks to disable CDR tracking
during auto-negotiation page exchange in KR mode
- Check for SFP tranceiver signal support and only use the signal if the
SFP indicates that it is supported
This patch series is based on net.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Lendacky [Mon, 23 Apr 2018 16:43:34 +0000 (11:43 -0500)]
amd-xgbe: Only use the SFP supported transceiver signals
The SFP eeprom indicates the transceiver signals (Rx LOS, Tx Fault, etc.)
that it supports. Update the driver to include checking the eeprom data
when deciding whether to use a transceiver signal.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Lendacky [Mon, 23 Apr 2018 16:43:17 +0000 (11:43 -0500)]
amd-xgbe: Improve KR auto-negotiation and training
Update xgbe-phy-v2.c to make use of the auto-negotiation (AN) phy hooks
to improve the ability to successfully complete Clause 73 AN when running
at 10gbps. Hardware can sometimes have issues with CDR lock when the
AN DME page exchange is being performed.
The AN and KR training hooks are used as follows:
- The pre AN hook is used to disable CDR tracking in the PHY so that the
DME page exchange can be successfully and consistently completed.
- The post KR training hook is used to re-enable the CDR tracking so that
KR training can successfully complete.
- The post AN hook is used to check for an unsuccessful AN which will
increase a CDR tracking enablement delay (up to a maximum value).
Add two debugfs entries to allow control over use of the CDR tracking
workaround. The debugfs entries allow the CDR tracking workaround to
be disabled and determine whether to re-enable CDR tracking before or
after link training has been initiated.
Also, with these changes the receiver reset cycle that is performed during
the link status check can be performed less often.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Lendacky [Mon, 23 Apr 2018 16:43:08 +0000 (11:43 -0500)]
amd-xgbe: Add pre/post auto-negotiation phy hooks
Add hooks to the driver auto-negotiation (AN) flow to allow the different
phy implementations to perform any steps necessary to improve AN.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Mon, 23 Apr 2018 14:38:27 +0000 (16:38 +0200)]
pppoe: check sockaddr length in pppoe_connect()
We must validate sockaddr_len, otherwise userspace can pass fewer data
than we expect and we end up accessing invalid data.
Fixes: 224cf5ad14c0 ("ppp: Move the PPP drivers")
Reported-by: syzbot+4f03bdf92fdf9ef5ddab@syzkaller.appspotmail.com
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Mon, 23 Apr 2018 14:15:14 +0000 (16:15 +0200)]
l2tp: check sockaddr length in pppol2tp_connect()
Check sockaddr_len before dereferencing sp->sa_protocol, to ensure that
it actually points to valid data.
Fixes: fd558d186df2 ("l2tp: Split pppol2tp patch into separate l2tp and ppp parts")
Reported-by: syzbot+a70ac890b23b1bf29f5c@syzkaller.appspotmail.com
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jingju Hou [Mon, 23 Apr 2018 07:22:49 +0000 (15:22 +0800)]
net: phy: marvell: clear wol event before setting it
If WOL event happened once, the LED[2] interrupt pin will not be
cleared unless we read the CSISR register. If interrupts are in use,
the normal interrupt handling will clear the WOL event. Let's clear the
WOL event before enabling it if !phy_interrupt_is_valid().
Signed-off-by: Jingju Hou <Jingju.Hou@synaptics.com>
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 23 Apr 2018 20:22:24 +0000 (16:22 -0400)]
Merge git://git./pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter/IPVS fixes for your net tree,
they are:
1) Fix SIP conntrack with phones sending session descriptions for different
media types but same port numbers, from Florian Westphal.
2) Fix incorrect rtnl_lock mutex logic from IPVS sync thread, from Julian
Anastasov.
3) Skip compat array allocation in ebtables if there is no entries, also
from Florian.
4) Do not lose left/right bits when shifting marks from xt_connmark, from
Jack Ma.
5) Silence false positive memleak in conntrack extensions, from Cong Wang.
6) Fix CONFIG_NF_REJECT_IPV6=m link problems, from Arnd Bergmann.
7) Cannot kfree rule that is already in list in nf_tables, switch order
so this error handling is not required, from Florian Westphal.
8) Release set name in error path, from Florian.
9) include kmemleak.h in nf_conntrack_extend.c, from Stepheh Rothwell.
10) NAT chain and extensions depend on NF_TABLES.
11) Out of bound access when renaming chains, from Taehee Yoo.
12) Incorrect casting in xt_connmark leads to wrong bitshifting.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 23 Apr 2018 01:29:23 +0000 (18:29 -0700)]
ipv6: add RTA_TABLE and RTA_PREFSRC to rtm_ipv6_policy
KMSAN reported use of uninit-value that I tracked to lack
of proper size check on RTA_TABLE attribute.
I also believe RTA_PREFSRC lacks a similar check.
Fixes: 86872cb57925 ("[IPv6] route: FIB6 configuration using struct fib6_config")
Fixes: c3968a857a6b ("ipv6: RTA_PREFSRC support for ipv6 route source address selection")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Sun, 22 Apr 2018 11:11:50 +0000 (19:11 +0800)]
bonding: do not set slave_dev npinfo before slave_enable_netpoll in bond_enslave
After Commit
8a8efa22f51b ("bonding: sync netpoll code with bridge"), it
would set slave_dev npinfo in slave_enable_netpoll when enslaving a dev
if bond->dev->npinfo was set.
However now slave_dev npinfo is set with bond->dev->npinfo before calling
slave_enable_netpoll. With slave_dev npinfo set, __netpoll_setup called
in slave_enable_netpoll will not call slave dev's .ndo_netpoll_setup().
It causes that the lower dev of this slave dev can't set its npinfo.
One way to reproduce it:
# modprobe bonding
# brctl addbr br0
# brctl addif br0 eth1
# ifconfig bond0 192.168.122.1/24 up
# ifenslave bond0 eth2
# systemctl restart netconsole
# ifenslave bond0 br0
# ifconfig eth2 down
# systemctl restart netconsole
The netpoll won't really work.
This patch is to remove that slave_dev npinfo setting in bond_enslave().
Fixes: 8a8efa22f51b ("bonding: sync netpoll code with bridge")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jann Horn [Fri, 20 Apr 2018 13:57:30 +0000 (15:57 +0200)]
tcp: don't read out-of-bounds opsize
The old code reads the "opsize" variable from out-of-bounds memory (first
byte behind the segment) if a broken TCP segment ends directly after an
opcode that is neither EOL nor NOP.
The result of the read isn't used for anything, so the worst thing that
could theoretically happen is a pagefault; and since the physmap is usually
mostly contiguous, even that seems pretty unlikely.
The following C reproducer triggers the uninitialized read - however, you
can't actually see anything happen unless you put something like a
pr_warn() in tcp_parse_md5sig_option() to print the opsize.
====================================
#define _GNU_SOURCE
#include <arpa/inet.h>
#include <stdlib.h>
#include <errno.h>
#include <stdarg.h>
#include <net/if.h>
#include <linux/if.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/in.h>
#include <linux/if_tun.h>
#include <err.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <assert.h>
void systemf(const char *command, ...) {
char *full_command;
va_list ap;
va_start(ap, command);
if (vasprintf(&full_command, command, ap) == -1)
err(1, "vasprintf");
va_end(ap);
printf("systemf: <<<%s>>>\n", full_command);
system(full_command);
}
char *devname;
int tun_alloc(char *name) {
int fd = open("/dev/net/tun", O_RDWR);
if (fd == -1)
err(1, "open tun dev");
static struct ifreq req = { .ifr_flags = IFF_TUN|IFF_NO_PI };
strcpy(req.ifr_name, name);
if (ioctl(fd, TUNSETIFF, &req))
err(1, "TUNSETIFF");
devname = req.ifr_name;
printf("device name: %s\n", devname);
return fd;
}
#define IPADDR(a,b,c,d) (((a)<<0)+((b)<<8)+((c)<<16)+((d)<<24))
void sum_accumulate(unsigned int *sum, void *data, int len) {
assert((len&2)==0);
for (int i=0; i<len/2; i++) {
*sum += ntohs(((unsigned short *)data)[i]);
}
}
unsigned short sum_final(unsigned int sum) {
sum = (sum >> 16) + (sum & 0xffff);
sum = (sum >> 16) + (sum & 0xffff);
return htons(~sum);
}
void fix_ip_sum(struct iphdr *ip) {
unsigned int sum = 0;
sum_accumulate(&sum, ip, sizeof(*ip));
ip->check = sum_final(sum);
}
void fix_tcp_sum(struct iphdr *ip, struct tcphdr *tcp) {
unsigned int sum = 0;
struct {
unsigned int saddr;
unsigned int daddr;
unsigned char pad;
unsigned char proto_num;
unsigned short tcp_len;
} fakehdr = {
.saddr = ip->saddr,
.daddr = ip->daddr,
.proto_num = ip->protocol,
.tcp_len = htons(ntohs(ip->tot_len) - ip->ihl*4)
};
sum_accumulate(&sum, &fakehdr, sizeof(fakehdr));
sum_accumulate(&sum, tcp, tcp->doff*4);
tcp->check = sum_final(sum);
}
int main(void) {
int tun_fd = tun_alloc("inject_dev%d");
systemf("ip link set %s up", devname);
systemf("ip addr add 192.168.42.1/24 dev %s", devname);
struct {
struct iphdr ip;
struct tcphdr tcp;
unsigned char tcp_opts[20];
} __attribute__((packed)) syn_packet = {
.ip = {
.ihl = sizeof(struct iphdr)/4,
.version = 4,
.tot_len = htons(sizeof(syn_packet)),
.ttl = 30,
.protocol = IPPROTO_TCP,
/* FIXUP check */
.saddr = IPADDR(192,168,42,2),
.daddr = IPADDR(192,168,42,1)
},
.tcp = {
.source = htons(1),
.dest = htons(1337),
.seq = 0x12345678,
.doff = (sizeof(syn_packet.tcp)+sizeof(syn_packet.tcp_opts))/4,
.syn = 1,
.window = htons(64),
.check = 0 /*FIXUP*/
},
.tcp_opts = {
/* INVALID: trailing MD5SIG opcode after NOPs */
1, 1, 1, 1, 1,
1, 1, 1, 1, 1,
1, 1, 1, 1, 1,
1, 1, 1, 1, 19
}
};
fix_ip_sum(&syn_packet.ip);
fix_tcp_sum(&syn_packet.ip, &syn_packet.tcp);
while (1) {
int write_res = write(tun_fd, &syn_packet, sizeof(syn_packet));
if (write_res != sizeof(syn_packet))
err(1, "packet write failed");
}
}
====================================
Fixes: cfb6eeb4c860 ("[TCP]: MD5 Signature Option (RFC2385) support.")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jacopo Mondi [Fri, 13 Apr 2018 17:25:37 +0000 (19:25 +0200)]
dma-mapping: postpone cpu addr translation on mmap
Postpone calling virt_to_page() translation on memory locations not
guaranteed to be backed by a struct page. Try first to map memory from
the device coherent memory pool, then perform translation if that fails.
On some architectures, specifically SH when configured with the SPARSEMEM
memory model, assuming a struct page is always assigned to a memory
address lead to unexpected hangs during the virtual to page address
translation. This patch fixes that specific issue but applies in the
general case too.
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Robin Murphy [Mon, 9 Apr 2018 17:59:14 +0000 (18:59 +0100)]
dma-coherent: clarify dma_mmap_from_dev_coherent documentation
The use of "correctly mapped" here is misleading, since it can give the
wrong expectation in the case that the memory *should* have been mapped
from the per-device pool, but doing so failed for other reasons.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Takashi Iwai [Sun, 15 Apr 2018 09:08:07 +0000 (11:08 +0200)]
dma-direct: don't retry allocation for no-op GFP_DMA
When an allocation with lower dma_coherent mask fails, dma_direct_alloc()
retries the allocation with GFP_DMA. But, this is useless for
architectures that hav no ZONE_DMA.
Fix it by adding the check of CONFIG_ZONE_DMA before retrying the
allocation.
Fixes: 95f183916d4b ("dma-direct: retry allocations using GFP_DMA for small masks")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Linus Torvalds [Mon, 23 Apr 2018 02:20:09 +0000 (19:20 -0700)]
Linux 4.17-rc2
David S. Miller [Mon, 23 Apr 2018 01:15:59 +0000 (21:15 -0400)]
Merge git://git./pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2018-04-21
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a deadlock between mm->mmap_sem and bpf_event_mutex when
one task is detaching a BPF prog via perf_event_detach_bpf_prog()
and another one dumping through bpf_prog_array_copy_info(). For
the latter we move the copy_to_user() out of the bpf_event_mutex
lock to fix it, from Yonghong.
2) Fix test_sock and test_sock_addr.sh failures. The former was
hitting rlimit issues and the latter required ping to specify
the address family, from Yonghong.
3) Remove a dead check in sockmap's sock_map_alloc(), from Jann.
4) Add generated files to BPF kselftests gitignore that were previously
missed, from Anders.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Falcon [Fri, 20 Apr 2018 19:25:32 +0000 (14:25 -0500)]
ibmvnic: Clean actual number of RX or TX pools
Avoid using value stored in the login response buffer when
cleaning TX and RX buffer pools since these could be inconsistent
depending on the device state. Instead use the field in the driver's
private data that tracks the number of active pools.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 23 Apr 2018 01:12:00 +0000 (21:12 -0400)]
Merge branch 'net-sched-ife-malformed-ife-packet-fixes'
Alexander Aring says:
====================
net: sched: ife: malformed ife packet fixes
As promised at netdev 2.2 tc workshop I am working on adding scapy support for
tdc testing. It is still work in progress. I will submit the patches to tdc
later (they are not in good shape yet). The good news is I have been able to
find bugs which normal packet testing would not be able to find.
With fuzzy testing I was able to craft certain malformed packets that IFE
action was not able to deal with. This patch set fixes those bugs.
changes since v4:
- use pskb_may_pull before pointer assign
changes since v3:
- use pskb_may_pull
changes since v2:
- remove inline from __ife_tlv_meta_valid
- add const to cast to meta_tlvhdr
- add acked and reviewed tags
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Aring [Fri, 20 Apr 2018 19:15:05 +0000 (15:15 -0400)]
net: sched: ife: check on metadata length
This patch checks if sk buffer is available to dererence ife header. If
not then NULL will returned to signal an malformed ife packet. This
avoids to crashing the kernel from outside.
Signed-off-by: Alexander Aring <aring@mojatatu.com>
Reviewed-by: Yotam Gigi <yotam.gi@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Aring [Fri, 20 Apr 2018 19:15:04 +0000 (15:15 -0400)]
net: sched: ife: handle malformed tlv length
There is currently no handling to check on a invalid tlv length. This
patch adds such handling to avoid killing the kernel with a malformed
ife packet.
Signed-off-by: Alexander Aring <aring@mojatatu.com>
Reviewed-by: Yotam Gigi <yotam.gi@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Aring [Fri, 20 Apr 2018 19:15:03 +0000 (15:15 -0400)]
net: sched: ife: signal not finding metaid
We need to record stats for received metadata that we dont know how
to process. Have find_decode_metaid() return -ENOENT to capture this.
Signed-off-by: Alexander Aring <aring@mojatatu.com>
Reviewed-by: Yotam Gigi <yotam.gi@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Doron Roberts-Kedes [Fri, 20 Apr 2018 19:11:11 +0000 (12:11 -0700)]
strparser: Do not call mod_delayed_work with a timeout of LONG_MAX
struct sock's sk_rcvtimeo is initialized to
LONG_MAX/MAX_SCHEDULE_TIMEOUT in sock_init_data. Calling
mod_delayed_work with a timeout of LONG_MAX causes spurious execution of
the work function. timer->expires is set equal to jiffies + LONG_MAX.
When timer_base->clk falls behind the current value of jiffies,
the delta between timer_base->clk and jiffies + LONG_MAX causes the
expiration to be in the past. Returning early from strp_start_timer if
timeo == LONG_MAX solves this problem.
Found while testing net/tls_sw recv path.
Fixes: 43a0c6751a322847 ("strparser: Stream parser for messages")
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Doron Roberts-Kedes <doronrk@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ahmed Abdelsalam [Fri, 20 Apr 2018 13:58:05 +0000 (15:58 +0200)]
ipv6: sr: fix NULL pointer dereference in seg6_do_srh_encap()- v4 pkts
In case of seg6 in encap mode, seg6_do_srh_encap() calls set_tun_src()
in order to set the src addr of outer IPv6 header.
The net_device is required for set_tun_src(). However calling ip6_dst_idev()
on dst_entry in case of IPv4 traffic results on the following bug.
Using just dst->dev should fix this BUG.
[ 196.242461] BUG: unable to handle kernel NULL pointer dereference at
0000000000000000
[ 196.242975] PGD
800000010f076067 P4D
800000010f076067 PUD
10f060067 PMD 0
[ 196.243329] Oops: 0000 [#1] SMP PTI
[ 196.243468] Modules linked in: nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd cryptd input_leds glue_helper led_class pcspkr serio_raw mac_hid video autofs4 hid_generic usbhid hid e1000 i2c_piix4 ahci pata_acpi libahci
[ 196.244362] CPU: 2 PID: 1089 Comm: ping Not tainted 4.16.0+ #1
[ 196.244606] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[ 196.244968] RIP: 0010:seg6_do_srh_encap+0x1ac/0x300
[ 196.245236] RSP: 0018:
ffffb2ce00b23a60 EFLAGS:
00010202
[ 196.245464] RAX:
0000000000000000 RBX:
ffff8c7f53eea300 RCX:
0000000000000000
[ 196.245742] RDX:
0000f10000000000 RSI:
ffff8c7f52085a6c RDI:
ffff8c7f41166850
[ 196.246018] RBP:
ffffb2ce00b23aa8 R08:
00000000000261e0 R09:
ffff8c7f41166800
[ 196.246294] R10:
ffffdce5040ac780 R11:
ffff8c7f41166828 R12:
ffff8c7f41166808
[ 196.246570] R13:
ffff8c7f52085a44 R14:
ffffffffb73211c0 R15:
ffff8c7e69e44200
[ 196.246846] FS:
00007fc448789700(0000) GS:
ffff8c7f59d00000(0000) knlGS:
0000000000000000
[ 196.247286] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[ 196.247526] CR2:
0000000000000000 CR3:
000000010f05a000 CR4:
00000000000406e0
[ 196.247804] Call Trace:
[ 196.247972] seg6_do_srh+0x15b/0x1c0
[ 196.248156] seg6_output+0x3c/0x220
[ 196.248341] ? prandom_u32+0x14/0x20
[ 196.248526] ? ip_idents_reserve+0x6c/0x80
[ 196.248723] ? __ip_select_ident+0x90/0x100
[ 196.248923] ? ip_append_data.part.50+0x6c/0xd0
[ 196.249133] lwtunnel_output+0x44/0x70
[ 196.249328] ip_send_skb+0x15/0x40
[ 196.249515] raw_sendmsg+0x8c3/0xac0
[ 196.249701] ? _copy_from_user+0x2e/0x60
[ 196.249897] ? rw_copy_check_uvector+0x53/0x110
[ 196.250106] ? _copy_from_user+0x2e/0x60
[ 196.250299] ? copy_msghdr_from_user+0xce/0x140
[ 196.250508] sock_sendmsg+0x36/0x40
[ 196.250690] ___sys_sendmsg+0x292/0x2a0
[ 196.250881] ? _cond_resched+0x15/0x30
[ 196.251074] ? copy_termios+0x1e/0x70
[ 196.251261] ? _copy_to_user+0x22/0x30
[ 196.251575] ? tty_mode_ioctl+0x1c3/0x4e0
[ 196.251782] ? _cond_resched+0x15/0x30
[ 196.251972] ? mutex_lock+0xe/0x30
[ 196.252152] ? vvar_fault+0xd2/0x110
[ 196.252337] ? __do_fault+0x1f/0xc0
[ 196.252521] ? __handle_mm_fault+0xc1f/0x12d0
[ 196.252727] ? __sys_sendmsg+0x63/0xa0
[ 196.252919] __sys_sendmsg+0x63/0xa0
[ 196.253107] do_syscall_64+0x72/0x200
[ 196.253305] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[ 196.253530] RIP: 0033:0x7fc4480b0690
[ 196.253715] RSP: 002b:
00007ffde9f252f8 EFLAGS:
00000246 ORIG_RAX:
000000000000002e
[ 196.254053] RAX:
ffffffffffffffda RBX:
0000000000000040 RCX:
00007fc4480b0690
[ 196.254331] RDX:
0000000000000000 RSI:
000000000060a360 RDI:
0000000000000003
[ 196.254608] RBP:
00007ffde9f253f0 R08:
00000000002d1e81 R09:
0000000000000002
[ 196.254884] R10:
00007ffde9f250c0 R11:
0000000000000246 R12:
0000000000b22070
[ 196.255205] R13:
20c49ba5e353f7cf R14:
431bde82d7b634db R15:
00007ffde9f278fe
[ 196.255484] Code: a5 0f b6 45 c0 41 88 41 28 41 0f b6 41 2c 48 c1 e0 04 49 8b 54 01 38 49 8b 44 01 30 49 89 51 20 49 89 41 18 48 8b 83 b0 00 00 00 <48> 8b 30 49 8b 86 08 0b 00 00 48 8b 40 20 48 8b 50 08 48 0b 10
[ 196.256190] RIP: seg6_do_srh_encap+0x1ac/0x300 RSP:
ffffb2ce00b23a60
[ 196.256445] CR2:
0000000000000000
[ 196.256676] ---[ end trace
71af7d093603885c ]---
Fixes: 8936ef7604c11 ("ipv6: sr: fix NULL pointer dereference when setting encap source address")
Signed-off-by: Ahmed Abdelsalam <amsalam20@gmail.com>
Acked-by: David Lebrun <dlebrun@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 23 Apr 2018 00:14:29 +0000 (17:14 -0700)]
Merge tag 'drm-fixes-for-v4.17-rc2' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Exynos, i915, vc4, amdgpu fixes.
i915:
- an oops fix
- two race fixes
- some gvt fixes
amdgpu:
- dark screen fix
- clk/voltage fix
- vega12 smu fix
vc4:
- memory leak fix
exynos just drops some code"
* tag 'drm-fixes-for-v4.17-rc2' of git://people.freedesktop.org/~airlied/linux: (23 commits)
drm/amd/powerplay: header file interface to SMU update
drm/amd/pp: Fix bug voltage can't be OD separately on VI
drm/amd/display: Don't program bypass on linear regamma LUT
drm/i915: Fix LSPCON TMDS output buffer enabling from low-power state
drm/i915/audio: Fix audio detection issue on GLK
drm/i915: Call i915_perf_fini() on init_hw error unwind
drm/i915/bios: filter out invalid DDC pins from VBT child devices
drm/i915/pmu: Inspect runtime PM state more carefully while estimating RC6
drm/i915: Do no use kfree() to free a kmem_cache_alloc() return value
drm/exynos: exynos_drm_fb -> drm_framebuffer
drm/exynos: Move dma_addr out of exynos_drm_fb
drm/exynos: Move GEM BOs to drm_framebuffer
drm: Fix HDCP downstream dev count read
drm/vc4: Fix memory leak during BO teardown
drm/i915/execlists: Clear user-active flag on preemption completion
drm/i915/gvt: Add drm_format_mod update
drm/i915/gvt: Disable primary/sprite/cursor plane at virtual display initialization
drm/i915/gvt: Delete redundant error message in fb_decode.c
drm/i915/gvt: Cancel dma map when resetting ggtt entries
drm/i915/gvt: Missed to cancel dma map for ggtt entries
...
Dave Airlie [Sun, 22 Apr 2018 22:54:06 +0000 (08:54 +1000)]
Merge branch 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux into drm-next
- Fix a dark screen issue in DC
- Fix clk/voltage dependency tracking for wattman
- Update SMU interface for vega12
* 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux:
drm/amd/powerplay: header file interface to SMU update
drm/amd/pp: Fix bug voltage can't be OD separately on VI
drm/amd/display: Don't program bypass on linear regamma LUT
Dave Airlie [Sun, 22 Apr 2018 22:53:41 +0000 (08:53 +1000)]
Merge tag 'exynos-drm-fixes-for-v4.17-rc2' of git://git./linux/kernel/git/daeinki/drm-exynos into drm-next
Remove Exynos specific framebuffer structure and
relevant functions.
- it removes exynos_drm_fb structure which is a wrapper of
drm_framebuffer and unnecessary two exynos specific callback
functions, exynos_drm_destory() and exynos_drm_fb_create_handle()
because we can reuse existing drm common callback ones instead.
* tag 'exynos-drm-fixes-for-v4.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: exynos_drm_fb -> drm_framebuffer
drm/exynos: Move dma_addr out of exynos_drm_fb
drm/exynos: Move GEM BOs to drm_framebuffer
drm/amdkfd: Deallocate SDMA queues correctly
drm/amdkfd: Fix scratch memory with HWS enabled
Dave Airlie [Sun, 22 Apr 2018 22:53:27 +0000 (08:53 +1000)]
Merge tag 'drm-intel-next-fixes-2018-04-19' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Fix for FDO #105549: Avoid OOPS on bad VBT (Jani)
- Fix rare pre-emption race (Chris)
- Fix RC6 race against PM transitions (Tvrtko)
* tag 'drm-intel-next-fixes-2018-04-19' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915/audio: Fix audio detection issue on GLK
drm/i915: Call i915_perf_fini() on init_hw error unwind
drm/i915/bios: filter out invalid DDC pins from VBT child devices
drm/i915/pmu: Inspect runtime PM state more carefully while estimating RC6
drm/i915: Do no use kfree() to free a kmem_cache_alloc() return value
drm/i915/execlists: Clear user-active flag on preemption completion
drm/i915/gvt: Add drm_format_mod update
drm/i915/gvt: Disable primary/sprite/cursor plane at virtual display initialization
drm/i915/gvt: Delete redundant error message in fb_decode.c
drm/i915/gvt: Cancel dma map when resetting ggtt entries
drm/i915/gvt: Missed to cancel dma map for ggtt entries
drm/i915/gvt: Make MI_USER_INTERRUPT nop in cmd parser
drm/i915/gvt: Mark expected switch fall-through in handle_g2v_notification
drm/i915/gvt: throw error on unhandled vfio ioctls
Dave Airlie [Sun, 22 Apr 2018 22:52:54 +0000 (08:52 +1000)]
Merge tag 'drm-misc-fixes-2018-04-18-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-fixes:
stable: vc4: Fix memory leak during BO teardown (Daniel)
dp: Add i2c retry for LSPCON adapters (Imre)
hdcp: Fix device count mask (Ramalingam)
Cc: Daniel J Blueman <daniel@quora.org
Cc: Imre Deak <imre.deak@intel.com>
Cc: Ramalingam C <ramalingam.c@intel.com>
* tag 'drm-misc-fixes-2018-04-18-1' of git://anongit.freedesktop.org/drm/drm-misc:
drm/i915: Fix LSPCON TMDS output buffer enabling from low-power state
drm: Fix HDCP downstream dev count read
drm/vc4: Fix memory leak during BO teardown
Linus Torvalds [Sun, 22 Apr 2018 19:13:04 +0000 (12:13 -0700)]
Merge tag '4.17-rc1-SMB3-CIFS' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Various SMB3/CIFS fixes.
There are three more security related fixes in progress that are not
included in this set but they are still being tested and reviewed, so
sending this unrelated set of smaller fixes now"
* tag '4.17-rc1-SMB3-CIFS' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: fix typo in cifs_dbg
cifs: do not allow creating sockets except with SMB1 posix exensions
cifs: smbd: Dump SMB packet when configured
cifs: smbd: Check for iov length on sending the last iov
fs: cifs: Adding new return type vm_fault_t
cifs: smb2ops: Fix NULL check in smb2_query_symlink
Linus Torvalds [Sun, 22 Apr 2018 19:09:27 +0000 (12:09 -0700)]
Merge tag 'for-4.17-rc1-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"This contains a few fixups to the qgroup patches that were merged this
dev cycle, unaligned access fix, blockgroup removal corner case fix
and a small debugging output tweak"
* tag 'for-4.17-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: print-tree: debugging output enhancement
btrfs: Fix race condition between delayed refs and blockgroup removal
btrfs: fix unaligned access in readdir
btrfs: Fix wrong btrfs_delalloc_release_extents parameter
btrfs: delayed-inode: Remove wrong qgroup meta reservation calls
btrfs: qgroup: Use independent and accurate per inode qgroup rsv
btrfs: qgroup: Commit transaction in advance to reduce early EDQUOT
Cong Wang [Fri, 20 Apr 2018 04:54:34 +0000 (21:54 -0700)]
llc: fix NULL pointer deref for SOCK_ZAPPED
For SOCK_ZAPPED socket, we don't need to care about llc->sap,
so we should just skip these refcount functions in this case.
Fixes: f7e43672683b ("llc: hold llc_sap before release_sock()")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Khoronzhuk [Thu, 19 Apr 2018 19:49:09 +0000 (22:49 +0300)]
net: ethernet: ti: cpsw: fix tx vlan priority mapping
The CPDMA_TX_PRIORITY_MAP in real is vlan pcp field priority mapping
register and basically replaces vlan pcp field for tagged packets.
So, set it to be 1:1 mapping. Otherwise, it will cause unexpected
change of egress vlan tagged packets, like prio 2 -> prio 5.
Fixes: e05107e6b747 ("net: ethernet: ti: cpsw: add multi queue support")
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cong Wang [Thu, 19 Apr 2018 19:25:38 +0000 (12:25 -0700)]
llc: delete timers synchronously in llc_sk_free()
The connection timers of an llc sock could be still flying
after we delete them in llc_sk_free(), and even possibly
after we free the sock. We could just wait synchronously
here in case of troubles.
Note, I leave other call paths as they are, since they may
not have to wait, at least we can change them to synchronously
when needed.
Also, move the code to net/llc/llc_conn.c, which is apparently
a better place.
Reported-by: <syzbot+f922284c18ea23a8e457@syzkaller.appspotmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Thu, 19 Apr 2018 14:20:48 +0000 (16:20 +0200)]
l2tp: fix {pppol2tp, l2tp_dfs}_seq_stop() in case of seq_file overflow
Commit
0e0c3fee3a59 ("l2tp: hold reference on tunnels printed in pppol2tp proc file")
assumed that if pppol2tp_seq_stop() was called with non-NULL private
data (the 'v' pointer), then pppol2tp_seq_start() would not be called
again. It turns out that this isn't guaranteed, and overflowing the
seq_file's buffer in pppol2tp_seq_show() is a way to get into this
situation.
Therefore, pppol2tp_seq_stop() needs to reset pd->tunnel, so that
pppol2tp_seq_start() won't drop a reference again if it gets called.
We also have to clear pd->session, because the rest of the code expects
a non-NULL tunnel when pd->session is set.
The l2tp_debugfs module has the same issue. Fix it in the same way.
Fixes: 0e0c3fee3a59 ("l2tp: hold reference on tunnels printed in pppol2tp proc file")
Fixes: f726214d9b23 ("l2tp: hold reference on tunnels printed in l2tp/tunnels debugfs file")
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 22 Apr 2018 18:42:32 +0000 (14:42 -0400)]
Merge branch 's390-qeth-fixes'
Julian Wiedmann says:
====================
s390/qeth: fixes 2018-04-19
Please apply the following qeth fixes for 4.17. The common theme
seems to be error handling improvements in various areas of cmd IO.
Patches 1-3 should also go back to stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann [Thu, 19 Apr 2018 10:52:11 +0000 (12:52 +0200)]
s390/qeth: use Read device to query hypervisor for MAC
For z/VM NICs, qeth needs to consider which of the three CCW devices in
an MPC group it uses for requesting a managed MAC address.
On the Base device, the hypervisor returns a default MAC which is
pre-assigned when creating the NIC (this MAC is also returned by the
READ MAC primitive). Querying any other device results in the allocation
of an additional MAC address.
For consistency with READ MAC and to avoid using up more addresses than
necessary, it is preferable to use the NIC's default MAC. So switch the
the diag26c over to using a NIC's Read device, which should always be
identical to the Base device.
Fixes: ec61bd2fd2a2 ("s390/qeth: use diag26c to get MAC address on L2")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann [Thu, 19 Apr 2018 10:52:10 +0000 (12:52 +0200)]
s390/qeth: fix request-side race during cmd IO timeout
Submitting a cmd IO request (usually on the WRITE device, but for IDX
also on the READ device) is currently done with ccw_device_start()
and a manual timeout in the caller.
On timeout, the caller cleans up the related resources (eg. IO buffer).
But 1) the IO might still be active and utilize those resources, and
2) when the IO completes, qeth_irq() will attempt to clean up the
same resources again.
Instead of introducing additional resource locking, switch to
ccw_device_start_timeout() to ensure IO termination after timeout, and
let the IRQ handler alone deal with cleaning up after a request.
This also removes a stray write->irq_pending reset from
clear_ipacmd_list(). The routine doesn't terminate any pending IO on
the WRITE device, so this should be handled properly via IO timeout
in the IRQ handler.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann [Thu, 19 Apr 2018 10:52:09 +0000 (12:52 +0200)]
s390/qeth: fix MAC address update sequence
When changing the MAC address on a L2 qeth device, current code first
unregisters the old address, then registers the new one.
If HW rejects the new address (or the IO fails), the device ends up with
no operable address at all.
Re-order the code flow so that the old address only gets dropped if the
new address was registered successfully. While at it, add logic to catch
some corner-cases.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann [Thu, 19 Apr 2018 10:52:08 +0000 (12:52 +0200)]
s390/qeth: handle failure on workqueue creation
Creating the global workqueue during driver init may fail, deal with it.
Also, destroy the created workqueue on any subsequent error.
Fixes: 0f54761d167f ("qeth: Support VEPA mode")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann [Thu, 19 Apr 2018 10:52:07 +0000 (12:52 +0200)]
s390/qeth: avoid control IO completion stalls
For control IO, qeth currently tracks the index of the buffer that it
expects to complete the next IO on each qeth_channel. If the channel
presents an IRQ while this buffer has not yet completed, no completion
processing for _any_ completed buffer takes place.
So if the 'next buffer' is skipped for any sort of reason* (eg. when it
is released due to error conditions, before the IO is started), the
buffer obviously won't switch to PROCESSED until it is eventually
allocated for a _different_ IO and completes.
Until this happens, all completion processing on that channel stalls
and pending requests possibly time out.
As a fix, remove the whole 'next buffer' logic and simply process any
IO buffer right when it completes. A channel will never have more than
one IO pending, so there's no risk of processing out-of-sequence.
*Note: currently just one location in the code really handles this problem,
by advancing the 'next' index manually.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann [Thu, 19 Apr 2018 10:52:06 +0000 (12:52 +0200)]
s390/qeth: fix error handling in adapter command callbacks
Make sure to check both return code fields before(!) processing the
command response. Otherwise we risk operating on invalid data.
This matches an earlier fix for SETASSPARMS commands, see
commit
ad3cbf613329 ("s390/qeth: fix error handling in checksum cmd callback").
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 22 Apr 2018 18:40:52 +0000 (11:40 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A small set of fixes for x86:
- Prevent X2APIC ID 0xFFFFFFFF from being treated as valid, which
causes the possible CPU count to be wrong.
- Prevent 32bit truncation in calc_hpet_ref() which causes the TSC
calibration to fail
- Fix the page table setup for temporary text mappings in the resume
code which causes resume failures
- Make the page table dump code handle HIGHPTE correctly instead of
oopsing
- Support for topologies where NUMA nodes share an LLC to prevent a
invalid topology warning and further malfunction on such systems.
- Remove the now unused pci-nommu code
- Remove stale function declarations"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/power/64: Fix page-table setup for temporary text mapping
x86/mm: Prevent kernel Oops in PTDUMP code with HIGHPTE=y
x86,sched: Allow topologies where NUMA nodes share an LLC
x86/processor: Remove two unused function declarations
x86/acpi: Prevent X2APIC id 0xffffffff from being accounted
x86/tsc: Prevent 32bit truncation in calc_hpet_ref()
x86: Remove pci-nommu.c
Linus Torvalds [Sun, 22 Apr 2018 17:49:02 +0000 (10:49 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"A small set of timer fixes:
- Evaluate the -ETIME condition correctly in the imx tpm driver
- Fix the evaluation order of a condition in posix cpu timers
- Use pr_cont() in the clockevents code to prevent ugly message
splitting
- Remove __current_kernel_time() which is now unused to prevent that
new users show up.
- Remove a stale forward declaration"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/imx-tpm: Correct -ETIME return condition check
posix-cpu-timers: Ensure set_process_cpu_timer is always evaluated
timekeeping: Remove __current_kernel_time()
timers: Remove stale struct tvec_base forward declaration
clockevents: Fix kernel messages split across multiple lines
Linus Torvalds [Sun, 22 Apr 2018 17:17:01 +0000 (10:17 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A larger set of updates for perf.
Kernel:
- Handle the SBOX uncore monitoring correctly on Broadwell CPUs which
do not have SBOX.
- Store context switch out type in PERF_RECORD_SWITCH[_CPU_WIDE]. The
percentage of preempting and non-preempting context switches help
understanding the nature of workloads (CPU or IO bound) that are
running on a machine. This adds the kernel facility and userspace
changes needed to show this information in 'perf script' and 'perf
report -D' (Alexey Budankov)
- Remove a WARN_ON() in the trace/kprobes code which is pointless
because the return error code is already telling the caller what's
wrong.
- Revert a fugly workaround for clang BPF targets.
- Fix sample_max_stack maximum check and do not proceed when an error
has been detect, return them to avoid misidentifying errors (Jiri
Olsa)
- Add SPDX idenitifiers and get rid of GPL boilderplate.
Tools:
- Synchronize kernel ABI headers, v4.17-rc1 (Ingo Molnar)
- Support MAP_FIXED_NOREPLACE, noticed when updating the
tools/include/ copies (Arnaldo Carvalho de Melo)
- Add '\n' at the end of parse-options error messages (Ravi Bangoria)
- Add s390 support for detailed/verbose PMU event description (Thomas
Richter)
- perf annotate fixes and improvements:
* Allow showing offsets in more than just jump targets, use the
new 'O' hotkey in the TUI, config ~/.perfconfig
annotate.offset_level for it and for --stdio2 (Arnaldo Carvalho
de Melo)
* Use the resolved variable names from objdump disassembled lines
to make them more compact, just like was already done for some
instructions, like "mov", this eventually will be done more
generally, but lets now add some more to the existing mechanism
(Arnaldo Carvalho de Melo)
- perf record fixes:
* Change warning for missing topology sysfs entry to debug, as not
all architectures have those files, s390 being one of those
(Thomas Richter)
* Remove old error messages about things that unlikely to be the
root cause in modern systems (Andi Kleen)
- perf sched fixes:
* Fix -g/--call-graph documentation (Takuya Yamamoto)
- perf stat:
* Enable 1ms interval for printing event counters values in
(Alexey Budankov)
- perf test fixes:
* Run dwarf unwind on arm32 (Kim Phillips)
* Remove unused ptrace.h include from LLVM test, sidesteping older
clang's lack of support for some asm constructs (Arnaldo
Carvalho de Melo)
* Fixup BPF test using epoll_pwait syscall function probe, to cope
with the syscall routines renames performed in this development
cycle (Arnaldo Carvalho de Melo)
- perf version fixes:
* Do not print info about HAVE_LIBAUDIT_SUPPORT in 'perf version
--build-options' when HAVE_SYSCALL_TABLE_SUPPORT is true, as
libaudit won't be used in that case, print info about
syscall_table support instead (Jin Yao)
- Build system fixes:
* Use HAVE_..._SUPPORT used consistently (Jin Yao)
* Restore READ_ONCE() C++ compatibility in tools/include (Mark
Rutland)
* Give hints about package names needed to build jvmti (Arnaldo
Carvalho de Melo)"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
perf/x86/intel/uncore: Fix SBOX support for Broadwell CPUs
perf/x86/intel/uncore: Revert "Remove SBOX support for Broadwell server"
coresight: Move to SPDX identifier
perf test BPF: Fixup BPF test using epoll_pwait syscall function probe
perf tests mmap: Show which tracepoint is failing
perf tools: Add '\n' at the end of parse-options error messages
perf record: Remove suggestion to enable APIC
perf record: Remove misleading error suggestion
perf hists browser: Clarify top/report browser help
perf mem: Allow all record/report options
perf trace: Support MAP_FIXED_NOREPLACE
perf: Remove superfluous allocation error check
perf: Fix sample_max_stack maximum check
perf: Return proper values for user stack errors
perf list: Add s390 support for detailed/verbose PMU event description
perf script: Extend misc field decoding with switch out event type
perf report: Extend raw dump (-D) out with switch out event type
perf/core: Store context switch out type in PERF_RECORD_SWITCH[_CPU_WIDE]
tools/headers: Synchronize kernel ABI headers, v4.17-rc1
trace_kprobe: Remove warning message "Could not insert probe at..."
...
Linus Torvalds [Sun, 22 Apr 2018 16:48:13 +0000 (09:48 -0700)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull objtool fix from Thomas Gleixner:
"A single fix for objtool so it uses the host C and LD flags and not
the target ones"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Support HOSTCFLAGS and HOSTLDFLAGS
Linus Torvalds [Sun, 22 Apr 2018 04:20:48 +0000 (21:20 -0700)]
Merge tag 'random_for_linus_stable' of git://git./linux/kernel/git/tytso/random
Pull /dev/random fixes from Ted Ts'o:
"Fix some bugs in the /dev/random driver which causes getrandom(2) to
unblock earlier than designed.
Thanks to Jann Horn from Google's Project Zero for pointing this out
to me"
* tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: add new ioctl RNDRESEEDCRNG
random: crng_reseed() should lock the crng instance that it is modifying
random: set up the NUMA crng instances after the CRNG is fully initialized
random: use a different mixing algorithm for add_device_randomness()
random: fix crng_ready() test
Linus Torvalds [Sun, 22 Apr 2018 04:11:05 +0000 (21:11 -0700)]
Merge branch 'libnvdimm-fixes' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A regression fix, new unit test infrastructure and a build fix:
- Regression fix addressing support for the new NVDIMM label storage
area access commands (_LSI, _LSR, and _LSW).
The Intel specific version of these commands communicated the
"Device Locked" status on the label-storage-information command.
However, these new commands (standardized in ACPI 6.2) communicate
the "Device Locked" status on the label-storage-read command, and
the driver was missing the indication.
Reading from locked persistent memory is similar to reading
unmapped PCI memory space, returns all 1's.
- Unit test infrastructure is added to regression test the "Device
Locked" detection failure.
- A build fix is included to allow the "of_pmem" driver to be built
as a module and translate an Open Firmware described device to its
local numa node"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
MAINTAINERS: Add backup maintainers for libnvdimm and DAX
device-dax: allow MAP_SYNC to succeed
Revert "libnvdimm, of_pmem: workaround OF_NUMA=n build error"
libnvdimm, of_pmem: use dev_to_node() instead of of_node_to_nid()
tools/testing/nvdimm: enable labels for nfit_test.1 dimms
tools/testing/nvdimm: fix missing newline in nfit_test_dimm 'handle' attribute
tools/testing/nvdimm: support nfit_test_dimm attributes under nfit_test.1
tools/testing/nvdimm: allow custom error code injection
libnvdimm, dimm: handle EACCES failures from label reads
Linus Torvalds [Sat, 21 Apr 2018 17:32:16 +0000 (10:32 -0700)]
Merge tag 'sound-4.17-rc2' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A few small fixes:
- a fix for the NULL-dereference in rawmidi compat ioctls, triggered
by fuzzer
- HD-audio Realtek codec quirks, a VIA controller fixup
- a long-standing bug fix in LINE6 MIDI"
* tag 'sound-4.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: rawmidi: Fix missing input substream checks in compat ioctls
ALSA: hda/realtek - adjust the location of one mic
ALSA: hda/realtek - set PINCFG_HEADSET_MIC to parse_flags
ALSA: hda - New VIA controller suppor no-snoop path
ALSA: line6: Use correct endpoint type for midi output
Linus Torvalds [Sat, 21 Apr 2018 17:28:15 +0000 (10:28 -0700)]
Merge tag 'linux-watchdog-4.17-rc2' of git://linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
- fall-through fixes
- MAINTAINER change for hpwdt
- renesas-wdt: Add support for WDIOF_CARDRESET
- aspeed: set bootstatus during probe
* tag 'linux-watchdog-4.17-rc2' of git://www.linux-watchdog.org/linux-watchdog:
aspeed: watchdog: Set bootstatus during probe
watchdog: renesas-wdt: Add support for WDIOF_CARDRESET
watchdog: wafer5823wdt: Mark expected switch fall-through
watchdog: w83977f_wdt: Mark expected switch fall-through
watchdog: sch311x_wdt: Mark expected switch fall-through
watchdog: hpwdt: change maintainer.
Linus Torvalds [Sat, 21 Apr 2018 17:26:00 +0000 (10:26 -0700)]
Merge tag 'linux-kselftest-4.17-rc2' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fix from Shuah Khan:
"A fix from Michael Ellerman to not run dnotify_test by default to
prevent Kselftest running forever"
* tag 'linux-kselftest-4.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/filesystems: Don't run dnotify_test by default
Linus Torvalds [Sat, 21 Apr 2018 17:20:50 +0000 (10:20 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- kasan: avoid pfn_to_nid() before the page array is initialised
- Fix typo causing the "upgrade" of known signals to SIGKILL
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: signal: don't force known signals to SIGKILL
arm64: kasan: avoid pfn_to_nid() before page array is initialized
Linus Torvalds [Sat, 21 Apr 2018 15:15:16 +0000 (08:15 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
- "fork: unconditionally clear stack on fork" is a non-bugfix which got
lost during the merge window - performance concerns appear to have
been adequately addressed.
- and a bunch of fixes
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/filemap.c: fix NULL pointer in page_cache_tree_insert()
mm: memcg: add __GFP_NOWARN in __memcg_schedule_kmem_cache_create()
fs, elf: don't complain MAP_FIXED_NOREPLACE unless -EEXIST error
kexec_file: do not add extra alignment to efi memmap
proc: fix /proc/loadavg regression
proc: revalidate kernel thread inodes to root:root
autofs: mount point create should honour passed in mode
MAINTAINERS: add personal addresses for Sascha and Uwe
kasan: add no_sanitize attribute for clang builds
rapidio: fix rio_dma_transfer error handling
mm: enable thp migration for shmem thp
writeback: safer lock nesting
mm, pagemap: fix swap offset value for PMD migration entry
mm: fix do_pages_move status handling
fork: unconditionally clear stack on fork
Ingo Molnar [Sat, 21 Apr 2018 07:38:33 +0000 (09:38 +0200)]
Merge tag 'perf-urgent-for-mingo-4.17-
20180420' of git://git./linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes and improvements from Arnaldo Carvalho de Melo:
- Store context switch out type in PERF_RECORD_SWITCH[_CPU_WIDE].
The percentage of preempting and non-preempting context switches help
understanding the nature of workloads (CPU or IO bound) that are running
on a machine. This adds the kernel facility and userspace changes needed
to show this information in 'perf script' and 'perf report -D' (Alexey Budankov)
- Remove old error messages about things that unlikely to be the root cause
in modern systems (Andi Kleen)
- Synchronize kernel ABI headers, v4.17-rc1 (Ingo Molnar)
- Support MAP_FIXED_NOREPLACE, noticed when updating the tools/include/
copies (Arnaldo Carvalho de Melo)
- Fixup BPF test using epoll_pwait syscall function probe, to cope with
the syscall routines renames performed in this development cycle (Arnaldo Carvalho de Melo)
- Fix sample_max_stack maximum check and do not proceed when an error
has been detect, return them to avoid misidentifying errors (Jiri Olsa)
- Add '\n' at the end of parse-options error messages (Ravi Bangoria)
- Add s390 support for detailed/verbose PMU event description (Thomas Richter)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Matthew Wilcox [Fri, 20 Apr 2018 21:56:20 +0000 (14:56 -0700)]
mm/filemap.c: fix NULL pointer in page_cache_tree_insert()
f2fs specifies the __GFP_ZERO flag for allocating some of its pages.
Unfortunately, the page cache also uses the mapping's GFP flags for
allocating radix tree nodes. It always masked off the __GFP_HIGHMEM
flag, and masks off __GFP_ZERO in some paths, but not all. That causes
radix tree nodes to be allocated with a NULL list_head, which causes
backtraces like:
__list_del_entry+0x30/0xd0
list_lru_del+0xac/0x1ac
page_cache_tree_insert+0xd8/0x110
The __GFP_DMA and __GFP_DMA32 flags would also be able to sneak through
if they are ever used. Fix them all by using GFP_RECLAIM_MASK at the
innermost location, and remove it from earlier in the callchain.
Link: http://lkml.kernel.org/r/20180411060320.14458-2-willy@infradead.org
Fixes: 449dd6984d0e ("mm: keep page cache radix tree nodes in check")
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reported-by: Chris Fries <cfries@google.com>
Debugged-by: Minchan Kim <minchan@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Minchan Kim [Fri, 20 Apr 2018 21:56:17 +0000 (14:56 -0700)]
mm: memcg: add __GFP_NOWARN in __memcg_schedule_kmem_cache_create()
If there is heavy memory pressure, page allocation with __GFP_NOWAIT
fails easily although it's order-0 request. I got below warning 9 times
for normal boot.
<snip >: page allocation failure: order:0, mode:0x2200000(GFP_NOWAIT|__GFP_NOTRACK)
.. snip ..
Call trace:
dump_backtrace+0x0/0x4
dump_stack+0xa4/0xc0
warn_alloc+0xd4/0x15c
__alloc_pages_nodemask+0xf88/0x10fc
alloc_slab_page+0x40/0x18c
new_slab+0x2b8/0x2e0
___slab_alloc+0x25c/0x464
__kmalloc+0x394/0x498
memcg_kmem_get_cache+0x114/0x2b8
kmem_cache_alloc+0x98/0x3e8
mmap_region+0x3bc/0x8c0
do_mmap+0x40c/0x43c
vm_mmap_pgoff+0x15c/0x1e4
sys_mmap+0xb0/0xc8
el0_svc_naked+0x24/0x28
Mem-Info:
active_anon:17124 inactive_anon:193 isolated_anon:0
active_file:7898 inactive_file:712955 isolated_file:55
unevictable:0 dirty:27 writeback:18 unstable:0
slab_reclaimable:12250 slab_unreclaimable:23334
mapped:19310 shmem:212 pagetables:816 bounce:0
free:36561 free_pcp:1205 free_cma:35615
Node 0 active_anon:68496kB inactive_anon:772kB active_file:31592kB inactive_file:2851820kB unevictable:0kB isolated(anon):0kB isolated(file):220kB mapped:77240kB dirty:108kB writeback:72kB shmem:848kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
DMA free:142188kB min:3056kB low:3820kB high:4584kB active_anon:10052kB inactive_anon:12kB active_file:312kB inactive_file:1412620kB unevictable:0kB writepending:0kB present:1781412kB managed:1604728kB mlocked:0kB slab_reclaimable:3592kB slab_unreclaimable:876kB kernel_stack:400kB pagetables:52kB bounce:0kB free_pcp:1436kB local_pcp:124kB free_cma:142492kB
lowmem_reserve[]: 0 1842 1842
Normal free:4056kB min:4172kB low:5212kB high:6252kB active_anon:58376kB inactive_anon:760kB active_file:31348kB inactive_file:1439040kB unevictable:0kB writepending:180kB present:2000636kB managed:1923688kB mlocked:0kB slab_reclaimable:45408kB slab_unreclaimable:92460kB kernel_stack:9680kB pagetables:3212kB bounce:0kB free_pcp:3392kB local_pcp:688kB free_cma:0kB
lowmem_reserve[]: 0 0 0
DMA: 0*4kB 0*8kB 1*16kB (C) 0*32kB 0*64kB 0*128kB 1*256kB (C) 1*512kB (C) 0*1024kB 1*2048kB (C) 34*4096kB (C) = 142096kB
Normal: 228*4kB (UMEH) 172*8kB (UMH) 23*16kB (UH) 24*32kB (H) 5*64kB (H) 1*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 3872kB
721350 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
945512 pages RAM
0 pages HighMem/MovableOnly
63408 pages reserved
51200 pages cma reserved
__memcg_schedule_kmem_cache_create() tries to create a shadow slab cache
and the worker allocation failure is not really critical because we will
retry on the next kmem charge. We might miss some charges but that
shouldn't be critical. The excessive allocation failure report is not
very helpful.
[mhocko@kernel.org: changelog update]
Link: http://lkml.kernel.org/r/20180418022912.248417-1-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tetsuo Handa [Fri, 20 Apr 2018 21:56:13 +0000 (14:56 -0700)]
fs, elf: don't complain MAP_FIXED_NOREPLACE unless -EEXIST error
Commit
4ed28639519c ("fs, elf: drop MAP_FIXED usage from elf_map") is
printing spurious messages under memory pressure due to map_addr == -ENOMEM.
9794 (a.out): Uhuuh, elf segment at
00007f2e34738000(
fffffffffffffff4) requested but the memory is mapped already
14104 (a.out): Uhuuh, elf segment at
00007f34fd76c000(
fffffffffffffff4) requested but the memory is mapped already
16843 (a.out): Uhuuh, elf segment at
00007f930ecc7000(
fffffffffffffff4) requested but the memory is mapped already
Complain only if -EEXIST, and use %px for printing the address.
Link: http://lkml.kernel.org/r/201804182307.FAC17665.SFMOFJVFtHOLOQ@I-love.SAKURA.ne.jp
Fixes: 4ed28639519c7bad ("fs, elf: drop MAP_FIXED usage from elf_map") is
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Andrei Vagin <avagin@openvz.org>
Cc: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Kees Cook <keescook@chromium.org>
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Young [Fri, 20 Apr 2018 21:56:10 +0000 (14:56 -0700)]
kexec_file: do not add extra alignment to efi memmap
Chun-Yi reported a kernel warning message below:
WARNING: CPU: 0 PID: 0 at ../mm/early_ioremap.c:182 early_iounmap+0x4f/0x12c()
early_iounmap(
ffffffffff200180,
00000118) [0] size not consistent
00000120
The problem is x86 kexec_file_load adds extra alignment to the efi
memmap: in bzImage64_load():
efi_map_sz = efi_get_runtime_map_size();
efi_map_sz = ALIGN(efi_map_sz, 16);
And __efi_memmap_init maps with the size including the alignment bytes
but efi_memmap_unmap use nr_maps * desc_size which does not include the
extra bytes.
The alignment in kexec code is only needed for the kexec buffer internal
use Actually kexec should pass exact size of the efi memmap to 2nd
kernel.
Link: http://lkml.kernel.org/r/20180417083600.GA1972@dhcp-128-65.nay.redhat.com
Signed-off-by: Dave Young <dyoung@redhat.com>
Reported-by: joeyli <jlee@suse.com>
Tested-by: Randy Wright <rwright@hpe.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexey Dobriyan [Fri, 20 Apr 2018 21:56:06 +0000 (14:56 -0700)]
proc: fix /proc/loadavg regression
Commit
95846ecf9dac ("pid: replace pid bitmap implementation with IDR
API") changed last field of /proc/loadavg (last pid allocated) to be off
by one:
# unshare -p -f --mount-proc cat /proc/loadavg
0.00 0.00 0.00 1/60 2 <===
It should be 1 after first fork into pid namespace.
This is formally a regression but given how useless this field is I
don't think anyone is affected.
Bug was found by /proc testsuite!
Link: http://lkml.kernel.org/r/20180413175408.GA27246@avx2
Fixes: 95846ecf9dac508 ("pid: replace pid bitmap implementation with IDR API")
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Gargi Sharma <gs051095@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexey Dobriyan [Fri, 20 Apr 2018 21:56:03 +0000 (14:56 -0700)]
proc: revalidate kernel thread inodes to root:root
task_dump_owner() has the following code:
mm = task->mm;
if (mm) {
if (get_dumpable(mm) != SUID_DUMP_USER) {
uid = ...
}
}
Check for ->mm is buggy -- kernel thread might be borrowing mm
and inode will go to some random uid:gid pair.
Link: http://lkml.kernel.org/r/20180412220109.GA20978@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ian Kent [Fri, 20 Apr 2018 21:55:59 +0000 (14:55 -0700)]
autofs: mount point create should honour passed in mode
The autofs file system mkdir inode operation blindly sets the created
directory mode to S_IFDIR | 0555, ingoring the passed in mode, which can
cause selinux dac_override denials.
But the function also checks if the caller is the daemon (as no-one else
should be able to do anything here) so there's no point in not honouring
the passed in mode, allowing the daemon to set appropriate mode when
required.
Link: http://lkml.kernel.org/r/152361593601.8051.14014139124905996173.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Uwe Kleine-König [Fri, 20 Apr 2018 21:55:56 +0000 (14:55 -0700)]
MAINTAINERS: add personal addresses for Sascha and Uwe
The idea behind using kernel@pengutronix.de (i.e. the mail alias for the
kernel people at Pengutronix) as email address was to have a backup when
a given developer is on vacation or run over by a bus. Make this more
explicit by adding the alias as reviewer and use the personal address
for Sascha and me.
Link: http://lkml.kernel.org/r/20180413083312.11213-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
projects / platform / kernel / linux-starfive.git / log