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The inode update should be stopped before returing the error code.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Link: https://lore.kernel.org/r/20210117085732.93788-1-bianpan2016@163.com
Fixes: 8016e29f4362 ("ext4: fast commit recovery path")
Cc: stable@kernel.org
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This patch adds rename whiteout support in fast commits. Note that the
whiteout object that gets created is actually char device. Which
imples, the function ext4_inode_journal_mode(struct inode *inode)
would return "JOURNAL_DATA" for this inode. This has a consequence in
fast commit code that it will make creation of the whiteout object a
fast-commit ineligible behavior and thus will fall back to full
commits. With this patch, this can be observed by running fast commits
with rename whiteout and seeing the stats generated by ext4_fc_stats
tracepoint as follows:
ext4_fc_stats: dev 254:32 fc ineligible reasons:
XATTR:0, CROSS_RENAME:0, JOURNAL_FLAG_CHANGE:0, NO_MEM:0, SWAP_BOOT:0,
RESIZE:0, RENAME_DIR:0, FALLOC_RANGE:0, INODE_JOURNAL_DATA:16;
num_commits:6, ineligible: 6, numblks: 3
So in short, this patch guarantees that in case of rename whiteout, we
fall back to full commits.
Amir mentioned that instead of creating a new whiteout object for
every rename, we can create a static whiteout object with irrelevant
nlink. That will make fast commits to not fall back to full
commit. But until this happens, this patch will ensure correctness by
falling back to full commits.
Fixes: 8016e29f4362 ("ext4: fast commit recovery path")
Cc: stable@kernel.org
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20210316221921.1124955-1-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
When filesystem mount fails because of corrupted filesystem we first
cancel the s_err_report timer reminding fs errors every day and only
then we flush s_error_work. However s_error_work may report another fs
error and re-arm timer thus resulting in timer use-after-free. Fix the
problem by first flushing the work and only after that canceling the
s_err_report timer.
Reported-by: syzbot+628472a2aac693ab0fcd@syzkaller.appspotmail.com
Fixes: 2d01ddc86606 ("ext4: save error info to sb through journal if available")
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210315165906.2175-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
If set_large_file = 1 and errors occur in ext4_handle_dirty_metadata(),
the error code will be overridden, go to out_brelse to avoid this
situation.
Signed-off-by: Shijie Luo <luoshijie1@huawei.com>
Link: https://lore.kernel.org/r/20210312065051.36314-1-luoshijie1@huawei.com
Cc: stable@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Syzbot report a warning that ext4 may create an empty ea_inode if set
an empty extent attribute to a file on the file system which is no free
blocks left.
WARNING: CPU: 6 PID: 10667 at fs/ext4/xattr.c:1640 ext4_xattr_set_entry+0x10f8/0x1114 fs/ext4/xattr.c:1640
...
Call trace:
ext4_xattr_set_entry+0x10f8/0x1114 fs/ext4/xattr.c:1640
ext4_xattr_block_set+0x1d0/0x1b1c fs/ext4/xattr.c:1942
ext4_xattr_set_handle+0x8a0/0xf1c fs/ext4/xattr.c:2390
ext4_xattr_set+0x120/0x1f0 fs/ext4/xattr.c:2491
ext4_xattr_trusted_set+0x48/0x5c fs/ext4/xattr_trusted.c:37
__vfs_setxattr+0x208/0x23c fs/xattr.c:177
...
Now, ext4 try to store extent attribute into an external inode if
ext4_xattr_block_set() return -ENOSPC, but for the case of store an
empty extent attribute, store the extent entry into the extent
attribute block is enough. A simple reproduce below.
fallocate test.img -l 1M
mkfs.ext4 -F -b 2048 -O ea_inode test.img
mount test.img /mnt
dd if=/dev/zero of=/mnt/foo bs=2048 count=500
setfattr -n "user.test" /mnt/foo
Reported-by: syzbot+98b881fdd8ebf45ab4ae@syzkaller.appspotmail.com
Fixes: 9c6e7853c531 ("ext4: reserve space for xattr entries/names")
Cc: stable@kernel.org
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20210305120508.298465-1-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
In ext4_rename(), when RENAME_WHITEOUT failed to add new entry into
directory, it ends up dropping new created whiteout inode under the
running transaction. After commit <9b88f9fb0d2> ("ext4: Do not iput inode
under running transaction"), we follow the assumptions that evict() does
not get called from a transaction context but in ext4_rename() it breaks
this suggestion. Although it's not a real problem, better to obey it, so
this patch add inode to orphan list and stop transaction before final
iput().
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20210303131703.330415-2-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
If we failed to add new entry on rename whiteout, we cannot reset the
old->de entry directly, because the old->de could have moved from under
us during make indexed dir. So find the old entry again before reset is
needed, otherwise it may corrupt the filesystem as below.
/dev/sda: Entry '00000001' in ??? (12) has deleted/unused inode 15. CLEARED.
/dev/sda: Unattached inode 75
/dev/sda: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
Fixes: 6b4b8e6b4ad ("ext4: fix bug for rename with RENAME_WHITEOUT")
Cc: stable@vger.kernel.org
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20210303131703.330415-1-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This reverts commit e9bf96943b408e6c99dd13fb01cb907335787c61.
The topic of the reverted patch is the support for switches with global
VLAN filtering, added by commit 061f6a505ac3 ("net: dsa: Add
ndo_vlan_rx_{add, kill}_vid implementation"). Be there a switch with 4
ports swp0 -> swp3, and the following setup:
ip link add br0 type bridge vlan_filtering 1
ip link set swp0 master br0
ip link set swp1 master br0
What would happen with VLAN-tagged traffic received on standalone ports
swp2 and swp3? Well, it would get dropped, were it not for the
.ndo_vlan_rx_add_vid and .ndo_vlan_rx_kill_vid implementations (called
from vlan_vid_add and vlan_vid_del respectively). Basically, for DSA
switches where VLAN filtering is a global attribute, we enforce the
standalone ports to have 'rx-vlan-filter: off [fixed]' in their ethtool
features, which lets the user know that all VLAN-tagged packets that are
not explicitly added in the RX filtering list are dropped.
As for the sja1105 driver, at the time of the reverted patch, it was
operating in a pretty handicapped mode when it had ports under a bridge
with vlan_filtering=1. Specifically, it was unable to terminate traffic
through the CPU port (for further explanation see "Traffic support" in
Documentation/networking/dsa/sja1105.rst).
However, since then, the sja1105 driver has made considerable progress,
and that limitation is no longer as severe now. Specifically, since
commit 2cafa72e516f ("net: dsa: sja1105: add a new
best_effort_vlan_filtering devlink parameter"), the driver is able to
perform CPU termination even when some ports are under bridges with
vlan_filtering=1. Then, since commit 8841f6e63f2c ("net: dsa: sja1105:
make devlink property best_effort_vlan_filtering true by default"), this
even became the default operating mode.
So we can now take advantage of the logic in the DSA core.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for the ethtool get_ringparam operation.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
s/subsytem/subsystem/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
IOMMU errors have been reported if WoL is enabled and interface is
brought down. It turned out that the network chip triggers DMA
transfers after the DMA buffers have been freed. For WoL to work we
need to leave rx enabled, therefore simply stop the chip from being
a DMA busmaster.
Fixes: 567ca57faa62 ("r8169: add rtl8169_up")
Tested-by: Paul Blazejowski <paulb@blazebox.homeip.net>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-fixes-for-5.12-20210320' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2021-03-20
this is a pull request of 2 patches for net/master.
The first patch is by Oliver Hartkopp. He fixes the TX-path in the
ISO-TP protocol by properly initializing the outgoing CAN frames.
The second patch is by me and reverts a patch from my previous pull
request which added MODULE_SUPPORTED_DEVICE to the peak_usb driver. In
the mean time in Linus's tree the entirely MODULE_SUPPORTED_DEVICE was
removed. So this reverts the adding of the new MODULE_SUPPORTED_DEVICE
to avoid the merge conflict.
If you prefer to resolve the merge conflict by hand, I'll send a new
pull request without that patch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder says:
====================
net: ipa: more configuration data updates
This series starts with two patches that should have been included
in an earlier series. With these in place, QSB settings are
programmed from information found in the data files rather than
being embedded in code. Support is then added for reprenting
another QSB property (supported for IPA v4.0+).
The third patch updates the definition of the sequencer type used
for an endpoint. Previously a set of 2-byte symbols with fairly
long names defined the sequencer type, but now those are broken into
1-byte halves whose names are a little more informative.
The fourth patch moves the sequencer type definition so it only
applies to TX endpoints (they aren't valid for RX endpoints). And
the last makes some minor documentation updates.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We only program the sequencer type for TX endpoints. So move the
definition of the sequencer type fields into the TX-specific portion
of the endpoint configuration data. There's no need to maintain
this in the IPA structure; we can extract it from the configuration
data it points to in the one spot it's needed.
We previously specified the sequencer type for RX endpoints with
INVALID values. These are no longer needed, so get rid of them.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
An IPA endpoint has a sequencer that must be configured based on how
the endpoint is to be used. Currently the IPA code programs the
sequencer type by splitting a value into four 4-bit nibbles. Doing
that doesn't really add much value, and regardless, a better way of
splitting the sequencer type is into two halves--the lower byte
describing how normal packet processing is handled, and the next
byte describing information about processing replicas.
So split the sequencer type into two sub-parts: the sequencer type
and the replication sequencer type. Define the values supported for
the "main" sequencer type, and define the values supported for the
replication part separately.
In addition, the sequencer type names are quite verbose, encoding
what the type includes, but also what it *excludes*. Rename the
sequencer types in a way that mainly describes the number of passes
that a packet takes through the IPA processing pipeline, and how
many of those passes end by supplying the processed packet to the
microprocessor.
The result expands the supported types beyond what is required for
now, but simplifies the way these are defined.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Starting with IPA v4.0, a limit is placed on the number of bytes
outstanding in a transaction, to reduce latency. The limit is
imposed only if this value is non-zero.
We don't use a non-zero value for SC7180, but newer versions of IPA
do. Prepare for that by allowing a programmed value to be specified
in the platform configuration data.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the QSB configuration data in ipa_hardware_config_qsb(), rather
than determining in code what values to use based on IPA version.
Pass configuration data to ipa_hardware_config() so it can be passed
to ipa_hardware_config_qsb().
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder says:
====================
ipa: fix validation
There is sanity checking code in the IPA driver that's meant to be
enabled only during development. This allows the driver to make
certain assumptions, but not have to verify those assumptions are
true at (operational) runtime. This code is built conditional on
IPA_VALIDATION, set (if desired) inside the IPA makefile.
Unfortunately, this validation code has some errors. First, there
are some mismatched arguments supplied to some dev_err() calls in
ipa_cmd_table_valid() and ipa_cmd_header_valid(), and these are
exposed if validation is enabled. Second, the tag that enables
this conditional code isn't used consistently (it's IPA_VALIDATE
in some spots and IPA_VALIDATION in others).
This series fixes those two problems with the conditional validation
code.
Version 2 removes the two patches that introduced ipa_assert(). It
also modifies the description in the first patch so that it mentions
the changes made to ipa_cmd_table_valid().
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We use ipa_cmd_header_valid() to ensure certain values we will
program into hardware are within range, well in advance of when we
actually program them. This way we avoid having to check for errors
when we actually program the hardware.
Unfortunately the dev_err() call for a bad offset value does not
supply the arguments to match the format specifiers properly.
Fix this.
There was also supposed to be a check to ensure the size to be
programmed fits in the field that holds it. Add this missing check.
Rearrange the way we ensure the header table fits in overall IPA
memory range.
Finally, update ipa_cmd_table_valid() so the format of messages
printed for errors matches what's done in ipa_cmd_header_valid().
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Made changes to coding style as suggested by checkpatch.pl
changes are of the type:
open brace '{' following struct go on the same line
do not use assignment in if condition
Signed-off-by: Sai Kalyaan Palla <saikalyaan63@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With interrupt force threading all device interrupt handlers are invoked
from kernel threads. Contrary to hard interrupt context the invocation only
disables bottom halfs, but not interrupts. This was an oversight back then
because any code like this will have an issue:
thread(irq_A)
irq_handler(A)
spin_lock(&foo->lock);
interrupt(irq_B)
irq_handler(B)
spin_lock(&foo->lock);
This has been triggered with networking (NAPI vs. hrtimers) and console
drivers where printk() happens from an interrupt which interrupted the
force threaded handler.
Now people noticed and started to change the spin_lock() in the handler to
spin_lock_irqsave() which affects performance or add IRQF_NOTHREAD to the
interrupt request which in turn breaks RT.
Fix the root cause and not the symptom and disable interrupts before
invoking the force threaded handler which preserves the regular semantics
and the usefulness of the interrupt force threading as a general debugging
tool.
For not RT this is not changing much, except that during the execution of
the threaded handler interrupts are delayed until the handler
returns. Vs. scheduling and softirq processing there is no difference.
For RT kernels there is no issue.
Fixes: 8d32a307e4fa ("genirq: Provide forced interrupt threading")
Reported-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Johan Hovold <johan@kernel.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20210317143859.513307808@linutronix.de
Alexei Starovoitov says:
====================
pull-request: bpf 2021-03-20
The following pull-request contains BPF updates for your *net* tree.
We've added 5 non-merge commits during the last 3 day(s) which contain
a total of 8 files changed, 155 insertions(+), 12 deletions(-).
The main changes are:
1) Use correct nops in fexit trampoline, from Stanislav.
2) Fix BTF dump, from Jean-Philippe.
3) Fix umd memory leak, from Zqiang.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 6417f03132a6 ("module: remove never implemented
MODULE_SUPPORTED_DEVICE") the MODULE_SUPPORTED_DEVICE macro was
removed from the kerne entirely. Shortly before this patch was applied
mainline the commit 59ec7b89ed3e ("can: peak_usb: add forgotten
supported devices") was added to net/master. As this would result in a
merge conflict, let's revert this patch.
Fixes: 59ec7b89ed3e ("can: peak_usb: add forgotten supported devices")
Link: https://lore.kernel.org/r/20210320192649.341832-1-mkl@pengutronix.de
Suggested-by: Leon Romanovsky <leon@kernel.org>
Cc: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Commit d4eb538e1f48 ("can: isotp: TX-path: ensure that CAN frame flags are
initialized") ensured the TX flags to be properly set for outgoing CAN
frames.
In fact the root cause of the issue results from a missing initialization
of outgoing CAN frames created by isotp. This is no problem on the CAN bus
as the CAN driver only picks the correctly defined content from the struct
can(fd)_frame. But when the outgoing frames are monitored (e.g. with
candump) we potentially leak some bytes in the unused content of
struct can(fd)_frame.
Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20210319100619.10858-1-socketcan@hartkopp.net
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
I have handful of fixes for 5.12:
* A fix to the SBI remote fence numbers for hypervisor fences, which had
been transcribed in the wrong order in Linux. These fences are only
used with the KVM patches applied.
* A whole host of build warnings have been fixed, these should have no
functional change.
* A fix to init_resources() that prevents an off-by-one error from
causing an out-of-bounds array reference. This is manifesting during
boot on vexriscv.
* A fix to ensure the KASAN mappings are visible before proceeding to
use them.
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Merge tag 'riscv-for-linus-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"A handful of fixes for 5.12:
- fix the SBI remote fence numbers for hypervisor fences, which had
been transcribed in the wrong order in Linux. These fences are only
used with the KVM patches applied.
- fix a whole host of build warnings, these should have no functional
change.
- fix init_resources() to prevent an off-by-one error from causing an
out-of-bounds array reference. This was manifesting during boot on
vexriscv.
- ensure the KASAN mappings are visible before proceeding to use
them"
* tag 'riscv-for-linus-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Correct SPARSEMEM configuration
RISC-V: kasan: Declare kasan_shallow_populate() static
riscv: Ensure page table writes are flushed when initializing KASAN vmalloc
RISC-V: Fix out-of-bounds accesses in init_resources()
riscv: Fix compilation error with Canaan SoC
ftrace: Fix spelling mistake "disabed" -> "disabled"
riscv: fix bugon.cocci warnings
riscv: process: Fix no prototype for arch_dup_task_struct
riscv: ftrace: Use ftrace_get_regs helper
riscv: process: Fix no prototype for show_regs
riscv: syscall_table: Reduce W=1 compilation warnings noise
riscv: time: Fix no prototype for time_init
riscv: ptrace: Fix no prototype warnings
riscv: sbi: Fix comment of __sbi_set_timer_v01
riscv: irq: Fix no prototype warning
riscv: traps: Fix no prototype warnings
RISC-V: correct enum sbi_ext_rfence_fid
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Merge tag '5.12-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Five cifs/smb3 fixes - three for stable, including an important ACL
fix and security signature fix"
* tag '5.12-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix allocation size on newly created files
cifs: warn and fail if trying to use rootfs without the config option
fs/cifs/: fix misspellings using codespell tool
cifs: Fix preauth hash corruption
cifs: update new ACE pointer after populate_new_aces.
Eight fixes, all in drivers, all fairly minor either being fixes in
error legs, memory leaks on teardown, context errors or semantic
problems.
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:
"Eight fixes, all in drivers, all fairly minor either being fixes in
error legs, memory leaks on teardown, context errors or semantic
problems"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: mpt3sas: Do not use GFP_KERNEL in atomic context
scsi: ufs: ufs-mediatek: Correct operator & -> &&
scsi: sd_zbc: Update write pointer offset cache
scsi: lpfc: Fix some error codes in debugfs
scsi: qla2xxx: Fix broken #endif placement
scsi: st: Fix a use after free in st_open()
scsi: myrs: Fix a double free in myrs_cleanup()
scsi: ibmvfc: Free channel_setup_buf during device tear down
__bpf_arch_text_poke does rewrite only for atomic nop5, emit_nops(xxx, 5)
emits non-atomic one which breaks fentry/fexit with k8 atomics:
P6_NOP5 == P6_NOP5_ATOMIC (0f1f440000 == 0f1f440000)
K8_NOP5 != K8_NOP5_ATOMIC (6666906690 != 6666666690)
Can be reproduced by doing "ideal_nops = k8_nops" in "arch_init_ideal_nops()
and running fexit_bpf2bpf selftest.
Fixes: e21aa341785c ("bpf: Fix fexit trampoline.")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210320000001.915366-1-sdf@google.com
3 patches in this pull request:
- A fix of inode write open reference count, from Chao
- Fix wrong write offset for asynchronous O_APPEND writes, from me
- Prevent use of sequential zone file as swap files, from me
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
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Merge tag 'zonefs-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs fixes from Damien Le Moal:
- fix inode write open reference count (Chao)
- Fix wrong write offset for asynchronous O_APPEND writes (me)
- Prevent use of sequential zone file as swap files (me)
* tag 'zonefs-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: fix to update .i_wr_refcnt correctly in zonefs_open_zone()
zonefs: Fix O_APPEND async write handling
zonefs: prevent use of seq files as swap file
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Merge tag 'block-5.12-2021-03-19' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Just an NVMe pull request this week:
- fix tag allocation for keep alive
- fix a unit mismatch for the Write Zeroes limits
- various TCP transport fixes (Sagi Grimberg, Elad Grupi)
- fix iosqes and iocqes validation for discovery controllers (Sagi Grimberg)"
* tag 'block-5.12-2021-03-19' of git://git.kernel.dk/linux-block:
nvmet-tcp: fix kmap leak when data digest in use
nvmet: don't check iosqes,iocqes for discovery controllers
nvme-rdma: fix possible hang when failing to set io queues
nvme-tcp: fix possible hang when failing to set io queues
nvme-tcp: fix misuse of __smp_processor_id with preemption enabled
nvme-tcp: fix a NULL deref when receiving a 0-length r2t PDU
nvme: fix Write Zeroes limitations
nvme: allocate the keep alive request using BLK_MQ_REQ_NOWAIT
nvme: merge nvme_keep_alive into nvme_keep_alive_work
nvme-fabrics: only reserve a single tag
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Merge tag 'io_uring-5.12-2021-03-19' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Quieter week this time, which was both expected and desired. About
half of the below is fixes for this release, the other half are just
fixes in general. In detail:
- Fix the freezing of IO threads, by making the freezer not send them
fake signals. Make them freezable by default.
- Like we did for personalities, move the buffer IDR to xarray. Kills
some code and avoids a use-after-free on teardown.
- SQPOLL cleanups and fixes (Pavel)
- Fix linked timeout race (Pavel)
- Fix potential completion post use-after-free (Pavel)
- Cleanup and move internal structures outside of general kernel view
(Stefan)
- Use MSG_SIGNAL for send/recv from io_uring (Stefan)"
* tag 'io_uring-5.12-2021-03-19' of git://git.kernel.dk/linux-block:
io_uring: don't leak creds on SQO attach error
io_uring: use typesafe pointers in io_uring_task
io_uring: remove structures from include/linux/io_uring.h
io_uring: imply MSG_NOSIGNAL for send[msg]()/recv[msg]() calls
io_uring: fix sqpoll cancellation via task_work
io_uring: add generic callback_head helpers
io_uring: fix concurrent parking
io_uring: halt SQO submission on ctx exit
io_uring: replace sqd rw_semaphore with mutex
io_uring: fix complete_post use ctx after free
io_uring: fix ->flags races by linked timeouts
io_uring: convert io_buffer_idr to XArray
io_uring: allow IO worker threads to be frozen
kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing
Two insn_buf[16] variables are declared in the function which acts on
function scope and block scope respectively. The statement in the inner
block is redundant, so remove it.
Signed-off-by: Jianlin Lv <Jianlin.Lv@arm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210318024851.49693-1-Jianlin.Lv@arm.com
Architectures that describe the CPU topology in devicetree and do not have
an identity mapping between physical and logical CPU ids must override the
default implementation of arch_match_cpu_phys_id().
Failing to do so breaks CPU devicetree-node lookups using of_get_cpu_node()
and of_cpu_device_node_get() which several drivers rely on. It also causes
the CPU struct devices exported through sysfs to point to the wrong
devicetree nodes.
On x86, CPUs are described in devicetree using their APIC ids and those
do not generally coincide with the logical ids, even if CPU0 typically
uses APIC id 0.
Add the missing implementation of arch_match_cpu_phys_id() so that CPU-node
lookups work also with SMP.
Apart from fixing the broken sysfs devicetree-node links this likely does
not affect current users of mainline kernels on x86.
Fixes: 4e07db9c8db8 ("x86/devicetree: Use CPU description from Device Tree")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210312092033.26317-1-johan@kernel.org
Tony Nguyen says:
====================
1GbE Intel Wired LAN Driver Updates 2021-03-19
This series contains updates to igc and e1000e drivers.
Sasha removes unused defines in igc driver.
Jiapeng Zhong changes bool assignments from 0/1 to false/true for igc.
Wei Yongjun marks e1000e_pm_prepare() as __maybe_unused to resolve a
defined but not used warning under certain configurations.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jean-Philippe Brucker says:
====================
Fix an issue with the libbpf BTF dump, see patch 1 for details.
Since [v1] I added the selftest in patch 2, though I couldn't figure out
a way to make it independent from the order in which debug info is
issued by the compiler.
[v1]: https://lore.kernel.org/bpf/20210318122700.396574-1-jean-philippe@linaro.org/
====================
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Bpftool used to issue forward declarations for a struct used as part of
a pointer to array, which is invalid. Add a test to check that the
struct is fully defined in this case:
@@ -134,9 +134,9 @@
};
};
-struct struct_in_array {};
+struct struct_in_array;
-struct struct_in_array_typed {};
+struct struct_in_array_typed;
typedef struct struct_in_array_typed struct_in_array_t[2];
@@ -189,3 +189,7 @@
struct struct_with_embedded_stuff _14;
};
+struct struct_in_array {};
+
+struct struct_in_array_typed {};
+
...
#13/1 btf_dump: syntax:FAIL
Suggested-by: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210319112554.794552-3-jean-philippe@linaro.org
The vmlinux.h generated from BTF is invalid when building
drivers/phy/ti/phy-gmii-sel.c with clang:
vmlinux.h:61702:27: error: array type has incomplete element type ‘struct reg_field’
61702 | const struct reg_field (*regfields)[3];
| ^~~~~~~~~
bpftool generates a forward declaration for this struct regfield, which
compilers aren't happy about. Here's a simplified reproducer:
struct inner {
int val;
};
struct outer {
struct inner (*ptr_to_array)[2];
} A;
After build with clang -> bpftool btf dump c -> clang/gcc:
./def-clang.h:11:23: error: array has incomplete element type 'struct inner'
struct inner (*ptr_to_array)[2];
Member ptr_to_array of struct outer is a pointer to an array of struct
inner. In the DWARF generated by clang, struct outer appears before
struct inner, so when converting BTF of struct outer into C, bpftool
issues a forward declaration to struct inner. With GCC the DWARF info is
reversed so struct inner gets fully defined.
That forward declaration is not sufficient when compilers handle an
array of the struct, even when it's only used through a pointer. Note
that we can trigger the same issue with an intermediate typedef:
struct inner {
int val;
};
typedef struct inner inner2_t[2];
struct outer {
inner2_t *ptr_to_array;
} A;
Becomes:
struct inner;
typedef struct inner inner2_t[2];
And causes:
./def-clang.h:10:30: error: array has incomplete element type 'struct inner'
typedef struct inner inner2_t[2];
To fix this, clear through_ptr whenever we encounter an intermediate
array, to make the inner struct part of a strong link and force full
declaration.
Fixes: 351131b51c7a ("libbpf: add btf_dump API for BTF-to-C conversion")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210319112554.794552-2-jean-philippe@linaro.org
* new selftests
* fixes for migration with HyperV re-enlightenment enabled
* fix RCU/SRCU usage
* fixes for local_irq_restore misuse false positive
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Fixes for kvm on x86:
- new selftests
- fixes for migration with HyperV re-enlightenment enabled
- fix RCU/SRCU usage
- fixes for local_irq_restore misuse false positive"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
documentation/kvm: additional explanations on KVM_SET_BOOT_CPU_ID
x86/kvm: Fix broken irq restoration in kvm_wait
KVM: X86: Fix missing local pCPU when executing wbinvd on all dirty pCPUs
KVM: x86: Protect userspace MSR filter with SRCU, and set atomically-ish
selftests: kvm: add set_boot_cpu_id test
selftests: kvm: add _vm_ioctl
selftests: kvm: add get_msr_index_features
selftests: kvm: Add basic Hyper-V clocksources tests
KVM: x86: hyper-v: Don't touch TSC page values when guest opted for re-enlightenment
KVM: x86: hyper-v: Track Hyper-V TSC page status
KVM: x86: hyper-v: Prevent using not-yet-updated TSC page by secondary CPUs
KVM: x86: hyper-v: Limit guest to writing zero to HV_X64_MSR_TSC_EMULATION_STATUS
KVM: x86/mmu: Store the address space ID in the TDP iterator
KVM: x86/mmu: Factor out tdp_iter_return_to_root
KVM: x86/mmu: Fix RCU usage when atomically zapping SPTEs
KVM: x86/mmu: Fix RCU usage in handle_removed_tdp_mmu_page
- fix the return value in error path in gpiolib_dev_init()
- fix the "gpio-line-names" property handling correctly this time
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Merge tag 'gpio-fixes-for-v5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
"Two fixes for the GPIO subsystem. Both address issues in the core GPIO
code:
- fix the return value in error path in gpiolib_dev_init()
- fix the 'gpio-line-names' property handling correctly this time"
* tag 'gpio-fixes-for-v5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpiolib: Assign fwnode to parent's if no primary one provided
gpiolib: Fix error return code in gpiolib_dev_init()
Similar to
https://lore.kernel.org/bpf/20210313210920.1959628-2-andrii@kernel.org/
When DECLARE_LIBBPF_OPTS is used with inline field initialization, e.g:
DECLARE_LIBBPF_OPTS(btf_dump_emit_type_decl_opts, opts,
.field_name = var_ident,
.indent_level = 2,
.strip_mods = strip_mods,
);
and compiled in debug mode, the compiler generates code which
leaves the padding uninitialized and triggers errors within libbpf APIs
which require strict zero initialization of OPTS structs.
Adding anonymous padding field fixes the issue.
Fixes: 9f81654eebe8 ("libbpf: Expose BTF-to-C type declaration emitting API")
Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: KP Singh <kpsingh@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210319192117.2310658-1-kpsingh@kernel.org
The ECN bit defines ECT(1) = 1, ECT(0) = 2. So inner 0x02 + outer 0x01
should be inner ECT(0) + outer ECT(1). Based on the description of
__INET_ECN_decapsulate, the final decapsulate value should be
ECT(1). So fix the test expect value to 0x01.
Before the fix:
TEST: VXLAN: ECN decap: 01/02->0x02 [FAIL]
Expected to capture 10 packets, got 0.
After the fix:
TEST: VXLAN: ECN decap: 01/02->0x01 [ OK ]
Fixes: a0b61f3d8ebf ("selftests: forwarding: vxlan_bridge_1d: Add an ECN decap test")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function e1000e_pm_prepare() may have no callers depending
on configuration, so it must be marked __maybe_unused to avoid
harmless warning:
drivers/net/ethernet/intel/e1000e/netdev.c:6926:12:
warning: 'e1000e_pm_prepare' defined but not used [-Wunused-function]
6926 | static int e1000e_pm_prepare(struct device *dev)
| ^~~~~~~~~~~~~~~~~
Fixes: ccf8b940e5fd ("e1000e: Leverage direct_complete to speed up s2ram")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Fix the following coccicheck warnings:
./drivers/net/ethernet/intel/igc/igc_main.c:4961:2-14: WARNING:
Assignment of 0/1 to bool variable.
./drivers/net/ethernet/intel/igc/igc_main.c:4955:2-14: WARNING:
Assignment of 0/1 to bool variable.
./drivers/net/ethernet/intel/igc/igc_main.c:4933:1-13: WARNING:
Assignment of 0/1 to bool variable.
./drivers/net/ethernet/intel/igc/igc_main.c:4592:1-24: WARNING:
Assignment of 0/1 to bool variable.
./drivers/net/ethernet/intel/igc/igc_main.c:4438:2-25: WARNING:
Assignment of 0/1 to bool variable.
./drivers/net/ethernet/intel/igc/igc_main.c:4396:2-25: WARNING:
Assignment of 0/1 to bool variable.
./drivers/net/ethernet/intel/igc/igc_main.c:4018:2-25: WARNING:
Assignment of 0/1 to bool variable.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Zhong <abaci-bugfix@linux.alibaba.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
MII_CR_LOOPBACK masks not in use in i225 device and can be removed.
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The mailing list for MPTCP maintenance has moved to the
kernel.org-supported mptcp@lists.linux.dev address.
Complete, combined archives for both lists are now hosted at
https://lore.kernel.org/mptcp
Cc: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2021-03-19
This series contains updates to e1000e and igb drivers.
Tom Seewald fixes duplicate guard issues by including the driver name in
the guard for e1000e and igb.
Jesse adds checks that timestamping is on and valid to avoid possible
issues with a misinterpreted time stamp for igb.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Force PHY speed not supported for i225 devices.
MII_CR_SPEED masks not in use in i225 device and can be removed.
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
