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Pull io_uring fixes from Jens Axboe:
- A tweak to IOSQE_IO_LINK (also marked for stable) to allow links that
don't sever if the result is < 0.
This is mostly for linked timeouts, where if we ask for a pure
timeout we always get -ETIME. This makes links useless for that case,
hence allow a case where it works.
- Five minor optimizations to fix and improve cases that regressed
since v5.4.
- An SQTHREAD locking fix.
- A sendmsg/recvmsg iov assignment fix.
- Net fix where read_iter/write_iter don't honor IOCB_NOWAIT, and
subsequently ensuring that works for io_uring.
- Fix a case where for an invalid opcode we might return -EBADF instead
of -EINVAL, if the ->fd of that sqe was set to an invalid fd value.
* tag 'io_uring-5.5-20191212' of git://git.kernel.dk/linux-block:
io_uring: ensure we return -EINVAL on unknown opcode
io_uring: add sockets to list of files that support non-blocking issue
net: make socket read/write_iter() honor IOCB_NOWAIT
io_uring: only hash regular files for async work execution
io_uring: run next sqe inline if possible
io_uring: don't dynamically allocate poll data
io_uring: deferred send/recvmsg should assign iov
io_uring: sqthread should grab ctx->uring_lock for submissions
io-wq: briefly spin for new work after finishing work
io-wq: remove worker->wait waitqueue
io_uring: allow unbreakable links
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix DM multipath by restoring full path selector functionality for
bio-based configurations that don't haave a SCSI device handler.
- Fix dm-btree removal to ensure non-root btree nodes have at least
(max_entries / 3) entries. This resolves userspace thin_check
utility's report of "too few entries in btree_node".
- Fix both the DM thin-provisioning and dm-clone targets to properly
flush the data device prior to metadata commit. This resolves the
potential for inconsistency across a power loss event when the data
device has a volatile writeback cache.
- Small documentation fixes to dm-clone and dm-integrity.
* tag 'for-5.5/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
docs: dm-integrity: remove reference to ARC4
dm thin: Flush data device before committing metadata
dm thin metadata: Add support for a pre-commit callback
dm clone: Flush destination device before committing metadata
dm clone metadata: Use a two phase commit
dm clone metadata: Track exact changes per transaction
dm btree: increase rebalance threshold in __rebalance2()
dm: add dm-clone to the documentation index
dm mpath: remove harmful bio-based optimization
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull FIELD_SIZEOF conversion from Kees Cook:
"A mostly mechanical treewide conversion from FIELD_SIZEOF() to
sizeof_field(). This avoids the redundancy of having 2 macros
(actually 3) doing the same thing, and consolidates on sizeof_field().
While "field" is not an accurate name, it is the common name used in
the kernel, and doesn't result in any unintended innuendo.
As there are still users of FIELD_SIZEOF() in -next, I will clean up
those during this coming development cycle and send the final old
macro removal patch at that time"
* tag 'sizeof_field-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
treewide: Use sizeof_field() macro
MIPS: OCTEON: Replace SIZEOF_FIELD() macro
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* pm-cpuidle:
cpuidle: Drop unnecessary type cast in cpuidle_poll_time()
cpuidle: Fix cpuidle_driver_state_disabled()
cpuidle: use first valid target residency as poll time
* acpi-pm:
ACPI: PM: Avoid attaching ACPI PM domain to certain devices
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When CONFIG_XEN_BALLOON_MEMORY_HOTPLUG is not defined
reserve_additional_memory() will set balloon_stats.target_pages to a
wrong value in case there are still some ballooned pages allocated via
alloc_xenballooned_pages().
This will result in balloon_process() no longer be triggered when
ballooned pages are freed in batches.
Reported-by: Nicholas Tsirakis <niko.tsirakis@gmail.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Objects allocated by xen_blkif_alloc come from the 'blkif_cache' kmem
cache. This cache is destoyed when xen-blkif is unloaded so it is
necessary to wait for the deferred free routine used for such objects to
complete. This necessity was missed in commit 14855954f636 "xen-blkback:
allow module to be cleanly unloaded". This patch fixes the problem by
taking/releasing extra module references in xen_blkif_alloc/free()
respectively.
Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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SMB2_tdis() checks if a root handle is valid in order to decide
whether it needs to close the handle or not. However if another
thread has reference for the handle, it may end up with putting
the reference twice. The extra reference that we want to put
during the tree disconnect is the reference that has a directory
lease. So, track the fact that we have a directory lease and
close the handle only in that case.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Ran into an intermittent crash in
SMB2_open_init+0x2f6/0x970
due to oparms.cifs_sb not being initialized when called from:
smb2_compound_op+0x45d/0x1690
Zero the whole oparms struct in the compounding path before setting up the
oparms so we don't risk any uninitialized fields.
Fixes: fdef665ba44a ("smb3: fix mode passed in on create for modetosid mount option")
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
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git://people.freedesktop.org/~agd5f/linux into drm-fixes
drm-fixes-5.5-2019-12-12:
amdgpu:
- DC fixes for renoir
- Gfx8 fence flush align with mesa
- Power profile fix for arcturus
- Freesync fix
- DC I2c over aux fix
- DC aux defer fix
- GPU reset fix
- GPUVM invalidation semaphore fixes for PCO and SR-IOV
- Golden settings updates for gfx10
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191212223211.8034-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix user reported issue #673: GPU hang on transition to idle
- Avoid corruption on the top of the screen on GLK+ by disabling FBC
- Fix non-privileged access to OA on Tigerlake
- Fix HDCP code not to touch global state when just computing commit
- Fix CI splat by saving irqstate around virtual_context_destroy
- Serialise context retirement possibly on another CPU
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191212100759.GA22260@jlahtine-desk.ger.corp.intel.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
-mgag200: more startadd mitigation (Thomas)
-panfrost: devfreq fix + several memory fixes (Steven, Boris)
Cc: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Steven Price <steven.price@arm.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20191212140145.GA145200@art_vandelay
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Commit 5e6669387e22 ("of/platform: Pause/resume sync state during init
and of_platform_populate()") paused/resumed sync state during init only
if Linux had parsed and populated a devicetree.
However, the check for that (of_have_populated_dt()) can change after
of_platform_default_populate_init() executes. One example of this is
when devicetree unittests are enabled. This causes an unmatched
pause/resume of sync state. To avoid this, just unconditionally
pause/resume sync state during init.
Fixes: 5e6669387e22 ("of/platform: Pause/resume sync state during init and of_platform_populate()")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Json-schema requires a $ref to be under an 'allOf' if there are
additional constraints otherwise the additional constraints are
ignored. (Note that this behavior will be changed in draft8.)
Fixes: 641262f5e1ed ("dt-bindings: memory: Add binding for NVIDIA Tegra30 External Memory Controller")
Fixes: 785685b7a106 ("dt-bindings: memory: Add binding for NVIDIA Tegra30 Memory Controller")
Fixes: 8da65c377b21 ("dt-bindings: memory: tegra30: Convert to Tegra124 YAML")
Cc: Thierry Reding <treding@nvidia.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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While my email address has changed for a while, all the schemas I
contributed still have the old one unfortunately. Update it.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Rob Herring <robh@kernel.org>
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Fix device memory flows so that only once there will be no live mmaped
VA to a given allocation the matching object will be destroyed.
This prevents a potential scenario that existing VA that was mmaped by
one process might still be used post its deallocation despite that it's
owned now by other process.
The above is achieved by integrating with IB core APIs to manage
mmap/munmap. Only once the refcount will become 0 the DM object and its
underlay area will be freed.
Fixes: 3b113a1ec3d4 ("IB/mlx5: Support device memory type attribute")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20191212100237.330654-3-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Introduce rdma_user_mmap_entry_insert_range() API to be used once the
required key for the given entry should be in a given range.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20191212100237.330654-2-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Since 62240a88004b ("PCI: rockchip: Drop storing driver private outbound
resource data), the offset calculation is wrong to access the register
number to program the IO outbound ATU.
Fix this by computing the ATU IO register number based on the number of MEM
registers, not the size of the IO region.
This causes 'synchronous external aborts' like the following:
mwifiex_pcie 0000:01:00.0: enabling device (0000 -> 0002)
mwifiex_pcie: PCI memory map Virt0: 00000000a573ad00 PCI memory map Virt2: 00000000783126c4
Internal error: synchronous external abort: 96000210 [#1] PREEMPT SMP
Modules linked in: mwifiex_pcie(+) mwifiex uvcvideo cfg80211 atmel_mxt_ts videobuf2_vmalloc ...
CPU: 2 PID: 269 Comm: systemd-udevd Not tainted 5.4.0+ #327
Hardware name: Google Kevin (DT)
pstate: 60000005 (nZCv daif -PAN -UAO)
pc : mwifiex_register_dev+0x264/0x3f8 [mwifiex_pcie]
lr : mwifiex_register_dev+0x150/0x3f8 [mwifiex_pcie]
sp : ffff800012073860
x29: ffff800012073860 x28: ffff8000100a2e28
x27: ffff8000118b6210 x26: ffff800008f57458
x25: ffff0000ecfda000 x24: 0000000000000001
x23: ffff0000e9905080 x22: ffff800008f5d000
x21: ffff0000eecea078 x20: ffff0000e9905080
x19: ffff0000eecea000 x18: 0000000000000001
x17: 0000000000000000 x16: 0000000000000000
x15: ffffffffffffffff x14: ffff8000118998c8
x13: ffff000000000000 x12: 0000000000000008
x11: 0101010101010101 x10: ffff7f7fffff7fff
x9 : 0000000000000000 x8 : ffff0000e3c24240
x7 : 0000000000000000 x6 : ffff0000e3c24148
x5 : ffff0000e3c24148 x4 : ffff0000e7975ec8
x3 : 0000000000000001 x2 : 0000000000002b42
x1 : ffff800012c00008 x0 : ffff0000e9905080
Call trace:
mwifiex_register_dev+0x264/0x3f8 [mwifiex_pcie]
mwifiex_add_card+0x2f8/0x430 [mwifiex]
mwifiex_pcie_probe+0x98/0x148 [mwifiex_pcie]
pci_device_probe+0x110/0x1a8
...
Code: a8c67bfd d65f03c0 f942ac01 91002021 (b9400021)
Suggested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Fixes: 62240a88004b ("PCI: rockchip: Drop storing driver private outbound resource data)
Link: https://lore.kernel.org/r/20191211093450.7481-1-enric.balletbo@collabora.com
Reported-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reported-by: Vicente Bergas <vicencb@gmail.com>
Tested-by: Vicente Bergas <vicencb@gmail.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Andrew Murray <andrew.murray@arm.com>
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It may fail to load guest driver in round 2 when using invalidate
semaphore for SRIOV. So it needs to avoid using invalidate semaphore
for SRIOV.
Signed-off-by: changzhu <Changfeng.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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It may fail to load guest driver in round 2 or cause Xstart problem
when using invalidate semaphore for SRIOV or picasso. So it needs avoid
using invalidate semaphore for SRIOV and picasso.
Signed-off-by: changzhu <Changfeng.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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There are two flow rule destinations: QP and packet. While users are
setting DROP packet rule, the QP should not be set as a destination.
Fixes: 3b3233fbf02e ("IB/mlx5: Add flow counters binding support")
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20191212091214.315005-4-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Current code device add sequence is:
ib_register_device()
ib_mad_init()
init_sriov_init()
register_netdev_notifier()
Therefore, the remove sequence should be,
unregister_netdev_notifier()
close_sriov()
mad_cleanup()
ib_unregister_device()
However it is not above.
Hence, make do above remove sequence.
Fixes: fa417f7b520ee ("IB/mlx4: Add support for IBoE")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20191212091214.315005-3-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Some QPs (e.g. XRC QP) are not tracked in kernel, in this case they have
an invalid res and should not be bound to any dynamically-allocated
counter in auto mode.
This fixes below call trace:
BUG: kernel NULL pointer dereference, address: 0000000000000390
PGD 80000001a7233067 P4D 80000001a7233067 PUD 1a7215067 PMD 0
Oops: 0000 [#1] SMP PTI
CPU: 2 PID: 24822 Comm: ibv_xsrq_pingpo Not tainted 5.4.0-rc5+ #21
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-2.fc27 04/01/2014
RIP: 0010:rdma_counter_bind_qp_auto+0x142/0x270 [ib_core]
Code: e1 48 85 c0 48 89 c2 0f 84 bc 00 00 00 49 8b 06 48 39 42 48 75 d6 40 3a aa 90 00 00 00 75 cd 49 8b 86 00 01 00 00 48 8b 4a 28 <8b> 80 90 03 00 00 39 81 90 03 00 00 75 b4 85 c0 74 b0 48 8b 04 24
RSP: 0018:ffffc900003f39c0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff88820020ec00 RSI: 0000000000000004 RDI: ffffffffffffffc0
RBP: 0000000000000001 R08: ffff888224149ff0 R09: ffffc900003f3968
R10: ffffffffffffffff R11: ffff8882249c5848 R12: ffffffffffffffff
R13: ffff88821d5aca50 R14: ffff8881f7690800 R15: ffff8881ff890000
FS: 00007fe53a3e1740(0000) GS:ffff888237b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000390 CR3: 00000001a7292006 CR4: 00000000003606a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
_ib_modify_qp+0x3a4/0x3f0 [ib_core]
? lookup_get_idr_uobject.part.8+0x23/0x40 [ib_uverbs]
modify_qp+0x322/0x3e0 [ib_uverbs]
ib_uverbs_modify_qp+0x43/0x70 [ib_uverbs]
ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0xb1/0xf0 [ib_uverbs]
ib_uverbs_run_method+0x6be/0x760 [ib_uverbs]
? uverbs_disassociate_api+0xd0/0xd0 [ib_uverbs]
ib_uverbs_cmd_verbs+0x18d/0x3a0 [ib_uverbs]
? get_acl+0x1a/0x120
? __alloc_pages_nodemask+0x15d/0x2c0
ib_uverbs_ioctl+0xa7/0x110 [ib_uverbs]
do_vfs_ioctl+0xa5/0x610
ksys_ioctl+0x60/0x90
__x64_sys_ioctl+0x16/0x20
do_syscall_64+0x48/0x110
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: 99fa331dc862 ("RDMA/counter: Add "auto" configuration mode support")
Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Ido Kalir <idok@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20191212091214.315005-2-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Pull ceph fixes from Ilya Dryomov:
"A fix to avoid a corner case when scheduling cap reclaim in batches
from Xiubo, a patch to add some observability into cap waiters from
Jeff and a couple of cleanups"
* tag 'ceph-for-5.5-rc2' of git://github.com/ceph/ceph-client:
ceph: add more debug info when decoding mdsmap
ceph: switch to global cap helper
ceph: trigger the reclaim work once there has enough pending caps
ceph: show tasks waiting on caps in debugfs caps file
ceph: convert int fields in ceph_mount_options to unsigned int
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ksys_dup() is used only at one place in the kernel, namely to duplicate
fd 0 of /dev/console to stdout and stderr. The same functionality can be
achieved by using functions already available within the kernel namespace.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Merge the two instances where /dev/console is opened as
stdin/stdout/stderr.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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The data type of the target_residency_ns field in struct cpuidle_state
is u64, so it does not need to be cast into u64.
Get rid of the unnecessary type cast.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Since blk_drain_queue had already been removed, so this function
is not needed anymore.
Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The IDE driver creates some passthru requests which never get
submitted to the block layer in such a way that blk_account_io_start()
gets called. However, the driver still calls __blk_mq_end_request() in
ide_end_rq() which will call blk_account_io_completion() which tries
to dereferences req->part which is never set. See ide_prep_sense() for
an example of where these requests come from.
To fix this, blk_account_io_completion() and blk_account_io_done()
should do nothing if req->part is not set.
The back trace of this bug is:
BUG: kernel NULL pointer dereference, address: 000002ac
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
*pde = 00000000
Oops: 0002 [#1]
CPU: 0 PID: 237 Comm: kworker/0:1H Not tainted
5.4.0-rc2-00011-g48d9b0d43105e #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1
04/01/2014
Workqueue: kblockd drive_rq_insert_work
EIP: blk_account_io_completion+0x7a/0xf0
Code: 89 54 24 08 31 d2 89 4c 24 04 31 c9 c7 04 24 02 00 00 00 c1 ee
09 e8 f5 21 a6 ff e8 70 5c a7 ff 8b 53 60 8d 04 bd 00 00 00 00 <01> b4
02 ac 02 00 00 8b 9a 88 02 00 00 85 db 74 11 85 d2 74 51 8b
EAX: 00000000 EBX: f5b80000 ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: 00000000 EBP: f3031e70 ESP: f3031e54
DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010046
CR0: 80050033 CR2: 000002ac CR3: 03c25000 CR4: 000406d0
Call Trace:
<IRQ>
blk_update_request+0x85/0x420
ide_end_rq+0x38/0xa0
ide_complete_rq+0x3d/0x70
cdrom_newpc_intr+0x258/0xba0
ide_intr+0x135/0x250
__handle_irq_event_percpu+0x3e/0x250
handle_irq_event_percpu+0x1f/0x50
handle_irq_event+0x32/0x60
handle_level_irq+0x6c/0x110
handle_irq+0x72/0xa0
</IRQ>
do_IRQ+0x45/0xad
common_interrupt+0x115/0x11c
Fixes: 48d9b0d43105 ("block: account statistics for passthrough requests")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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It may cause timeout waiting for sem acquire in VM flush when using
invalidate semaphore for picasso. So it needs to avoid using invalidate
semaphore for piasso.
Signed-off-by: changzhu <Changfeng.Zhu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This reverts commit f2efc6e60089c99c342a6b7da47f1037e06c4296.
This was fixed properly for 5.5, but came back via 5.4 merge
into drm-next, so revert it again.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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In prepare_namespace(), do_mount() can be used instead of ksys_mount()
as the first and third argument are const strings in the kernel, the
second and fourth argument are passed through anyway, and the fifth
argument is NULL.
In do_mount_root(), ksys_mount() is called with the first and third
argument being already kernelspace strings, which do not need to be
copied over from userspace to kernelspace (again). The second and
fourth arguments are passed through to do_mount() anyway. The fifth
argument, while already residing in kernelspace, needs to be put into
a page of its own. Then, do_mount() can be used instead of
ksys_mount().
Once this is done, there are no in-kernel users to ksys_mount() left,
which can therefore be removed.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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All three calls to ksys_mount() in initrd-related kernel code can
be switched over to do_mount():
- the first and third arguments are const strings in the kernel,
and do not need to be copied over from userspace;
- the fifth argument is NULL, and therefore no page needs to be,
copied over from userspace;
- the second and fourth argument are passed through anyway.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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In devtmpfs, do_mount() can be called directly instead of complex wrapping
by ksys_mount():
- the first and third arguments are const strings in the kernel,
and do not need to be copied over from userspace;
- the fifth argument is NULL, and therefore no page needs to be
copied over from userspace;
- the second and fourth argument are passed through anyway.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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The original ID that was added for Comet Lake PCH was
actually for the -LP (low power) variant even though the
constant for it said CMLH. Changing that while at it.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Felipe Balbi <balbi@kernel.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191212093713.60614-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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As we will remove items off the list using list_del(), we need to use the
safe version of list_for_each_entry().
Fixes: 4e60a9568dc6 ("interconnect: qcom: add msm8974 driver")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Link: https://lore.kernel.org/r/20191212075332.16202-5-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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As we will remove items off the list using list_del(), we need to use the
safe version of list_for_each_entry().
Fixes: 5e4e6c4d3ae0 ("interconnect: qcom: Add QCS404 interconnect provider driver")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Cc: <stable@vger.kernel.org> # v5.4
Link: https://lore.kernel.org/r/20191212075332.16202-4-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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As we will remove items off the list using list_del(), we need to use the
safe version of list_for_each_entry().
Fixes: b5d2f741077a ("interconnect: qcom: Add sdm845 interconnect provider driver")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Cc: <stable@vger.kernel.org> # v5.3+
Link: https://lore.kernel.org/r/20191212075332.16202-3-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Link: https://lore.kernel.org/r/20191212075332.16202-2-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit 5ace77e0b41a ("nios2: remove __ioremap") removed the following code,
with the argument that cacheflag is always 0 and the expression would
therefore always be false.
if (IS_MAPPABLE_UNCACHEABLE(phys_addr) &&
IS_MAPPABLE_UNCACHEABLE(last_addr) &&
!(cacheflag & _PAGE_CACHED))
return (void __iomem *)(CONFIG_NIOS2_IO_REGION_BASE + phys_addr);
This did not take the "!" in the expression into account. Result is that
nios2 images no longer boot. Restoring the removed code fixes the problem.
Fixes: 5ace77e0b41a ("nios2: remove __ioremap")
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
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Somehow this was forgotten when Zinc was being split into oddly shaped
pieces, resulting in linker errors. The x86_64 glue has a specific key
generation implementation, but the Arm one does not. However, it can
still receive the NEON speedups by calling the ordinary DH function
using the base point.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Bunch of random nouveau fixes.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ <CACAvsv56Am90okV334eXgxDuK228sb9UJxMiOYjNAMShvvv4cg@mail.gmail.com
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git://git.kernel.org/pub/scm/linux/kernel/git/song/md into for-linus
Pull MD fixes from Song.
* 'md-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/song/md:
md: make sure desc_nr less than MD_SB_DISKS
md: raid1: check rdev before reference in raid1_sync_request func
raid5: need to set STRIPE_HANDLE for batch head
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
- Expand dma-buf MAINTAINER scope
- Fix mode matching for drivers not using picture_aspect_ratio
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20191211212107.GA257983@art_vandelay
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull AFS fixes from David Howells:
"Fixes for AFS plus one patch to make debugging easier:
- Fix how addresses are matched to server records. This is currently
incorrect which means cache invalidation callbacks from the server
don't necessarily get delivered correctly. This causes stale data
and metadata to be seen under some circumstances.
- Make the dynamic root superblock R/W so that rpm/dnf can reapply
the SELinux label to it when upgrading the Fedora filesystem-afs
package. If the filesystem is R/O, this fails and the upgrade
fails.
It might be better in future to allow setxattr from an LSM to
bypass the R/O protections, if only for pseudo-filesystems.
- Fix the parsing of mountpoint strings. The mountpoint object has to
have a terminal dot, whereas the source/device string passed to
mount should not. This confuses type-forcing suffix detection
leading to the wrong volume variant being mounted.
- Make lookups in the dynamic root superblock for creation events
(such as mkdir) fail with EOPNOTSUPP rather than something like
EEXIST. The dynamic root only allows implicit creation by the
->lookup() method - and only if the target cell exists.
- Fix the looking up of an AFS superblock to include the cell in the
matching key - otherwise all volumes with the same ID number are
treated as the same thing, irrespective of which cell they're in.
- Show the volume name of each volume in the volume records displayed
in /proc/net/afs/<cell>/volumes. This proved useful in debugging as
it provides a way to map the volume IDs to names, where the names
are what appear in /proc/mounts"
* tag 'afs-fixes-20191211' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Show volume name in /proc/net/afs/<cell>/volumes
afs: Fix missing cell comparison in afs_test_super()
afs: Fix creation calls in the dynamic root to fail with EOPNOTSUPP
afs: Fix mountpoint parsing
afs: Fix SELinux setting security label on /afs
afs: Fix afs_find_server lookups for ipv4 peers
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If we submit an unknown opcode and have fd == -1, io_op_needs_file()
will return true as we default to needing a file. Then when we go and
assign the file, we find the 'fd' invalid and return -EBADF. We really
should be returning -EINVAL for that case, as we normally do for
unsupported opcodes.
Change io_op_needs_file() to have the following return values:
0 - does not need a file
1 - does need a file
< 0 - error value
and use this to pass back the right value for this invalid case.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs fixes from Gao Xiang:
"Mainly address a regression reported by David recently observed
together with overlayfs due to the improper return value of
listxattr() without xattr. Update outdated expressions in document as
well.
Summary:
- Fix improper return value of listxattr() with no xattr
- Keep up documentation with latest code"
* tag 'erofs-for-5.5-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: update documentation
erofs: zero out when listxattr is called with no xattr
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
- Remove code I accidentally applied when doing a minor fix up to a
patch, and then using "git commit -a --amend", which pulled in some
other changes I was playing with.
- Remove an used variable in trace_events_inject code
- Fix function graph tracer when it traces a ftrace direct function.
It will now ignore tracing a function that has a ftrace direct
tramploine attached. This is needed for eBPF to use the ftrace direct
code.
* tag 'trace-v5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace: Fix function_graph tracer interaction with BPF trampoline
tracing: remove set but not used variable 'buffer'
module: Remove accidental change of module_enable_x()
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There's no need to separately check for signals while inside the locked
region, since we're going to do "wait_event_interruptible()" right
afterwards anyway, and the error handling is much simpler there.
The check for whether we had already read anything was also redundant,
since we no longer do the odd merging of reads when there are pending
writers.
But perhaps more importantly, this adds commentary about why we still
need to wake up possible writers even though we didn't read any data,
and why we can skip all the finishing touches now if we get a signal (or
had a signal pending) while waiting for more data.
[ This is a split-out cleanup from my "make pipe IO use exclusive wait
queues" thing, which I can't apply because it triggers a nasty bug in
the GNU make jobserver - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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amdgpu is MIT licensed.
Fixes: ec8f24b7faaf3d ("treewide: Add SPDX license identifier - Makefile/Kconfig")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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add registers: mmPA_SC_BINNER_TIMEOUT_COUNTER and mmPA_SC_ENHANCE_2
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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