In pblk, when a new line is allocated, metadata for the previously
written line is scheduled. This is done through a fixed memory region
that is shared through time and contexts across different lines and
therefore protected by a lock. Unfortunately, this lock is not properly
covering all the metadata used for sharing this memory regions,
resulting in a race condition.
This patch fixes this race condition by protecting this metadata
properly.
Fixes: dd2a434373 ("lightnvm: pblk: sched. metadata on write thread")
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
A 1.2 device is able to manage the logical to physical mapping
table internally or leave it to the host.
A target only supports one of those approaches, and therefore must
check on initialization. Move this check to core to avoid each target
implement the check.
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
rqd.error is masked by the return value of pblk_submit_io_sync.
The rqd structure is then passed on to the end_io function, which
assumes that any error should lead to a chunk being marked
offline/bad. Since the pblk_submit_io_sync can fail before the
command is issued to the device, the error value maybe not correspond
to a media failure, leading to chunks being immaturely retired.
Also, the pblk_blk_erase_sync function prints an error message in case
the erase fails. Since the caller prints an error message by itself,
remove the error message in this function.
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Reviewed-by: Javier González <javier@cnexlabs.com>
Reviewed-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Add nvm_set_flags helper to enable core to appropriately
set the command flags for read/write/erase depending on which version
a drive supports.
The flags arguments can be distilled into the access hint,
scrambling, and program/erase suspend. Replace the access hint with
a "is_seq" parameter. The rest of the flags are dependent on the
command opcode, which is trivial to detect and set.
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Reviewed-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
No need to force NVMe device driver to be compiled in if the
lightnvm subsystem is selected. Also no need for PCI to be selected
as well, as it would be selected by the device driver that hooks into
the subsystem.
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Reviewed-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Lot of controllers may have only one irq vector for completing IO
request. And usually affinity of the only irq vector is all possible
CPUs, however, on most of ARCH, there may be only one specific CPU
for handling this interrupt.
So if all IOs are completed in hardirq context, it is inevitable to
degrade IO performance because of increased irq latency.
This patch tries to address this issue by allowing to complete request
in softirq context, like the legacy IO path.
IOPS is observed as ~13%+ in the following randread test on raid0 over
virtio-scsi.
mdadm --create --verbose /dev/md0 --level=0 --chunk=1024 --raid-devices=8 /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi
fio --time_based --name=benchmark --runtime=30 --filename=/dev/md0 --nrfiles=1 --ioengine=libaio --iodepth=32 --direct=1 --invalidate=1 --verify=0 --verify_fatal=0 --numjobs=32 --rw=randread --blocksize=4k
Cc: Dongli Zhang <dongli.zhang@oracle.com>
Cc: Zach Marano <zmarano@google.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Jianchao Wang <jianchao.w.wang@oracle.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
when the nbuckets of cache device is smaller than 1024, making cache
device will trigger BUG_ON in kernel, add a condition to avoid this.
Reported-by: nitroxis <n@nxs.re>
Signed-off-by: Dongbo Cao <cdbdyx@163.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Split the combined '||' statements in if() check, to make the code easier
for debug.
Signed-off-by: Dongbo Cao <cdbdyx@163.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Current cache_set has MAX_CACHES_PER_SET caches most, and the macro
is used for
"
struct cache *cache_by_alloc[MAX_CACHES_PER_SET];
"
in the define of struct cache_set.
Use MAX_CACHES_PER_SET instead of magic number 8 in
__bch_bucket_alloc_set.
Signed-off-by: Shenghui Wang <shhuiw@foxmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In extents.c:bch_extent_bad(), number 96 is used as parameter to call
btree_bug_on(). The purpose is to check whether stale gen value exceeds
BUCKET_GC_GEN_MAX, so it is better to use macro BUCKET_GC_GEN_MAX to
make the code more understandable.
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Parameter "struct kobject *kobj" in bch_debug_init() is useless,
remove it in this patch.
Signed-off-by: Dongbo Cao <cdbdyx@163.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
struct kmem_cache *bch_passthrough_cache is not used in
bcache code. Remove it.
Signed-off-by: Shenghui Wang <shhuiw@foxmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Recal cached_dev_sectors on cached_dev detached, as recal done on
cached_dev attached.
Update the cached_dev_sectors before bcache_device_detach called
as bcache_device_detach will set bcache_device->c to NULL.
Signed-off-by: Shenghui Wang <shhuiw@foxmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
refill->end record the last key of writeback, for example, at the first
time, keys (1,128K) to (1,1024K) are flush to the backend device, but
the end key (1,1024K) is not included, since the bellow code:
if (bkey_cmp(k, refill->end) >= 0) {
ret = MAP_DONE;
goto out;
}
And in the next time when we refill writeback keybuf again, we searched
key start from (1,1024K), and got a key bigger than it, so the key
(1,1024K) missed.
This patch modify the above code, and let the end key to be included to
the writeback key buffer.
Signed-off-by: Tang Junhui <tang.junhui.linux@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Forgot to include the maintainers with my first email.
Somewhere between Michael Lyle's original
"bcache: PI controller for writeback rate V2" patch dated 07 Sep 2017
and 1d316e6 bcache: implement PI controller for writeback rate,
the mapping of the writeback_rate_minimum attribute was dropped.
Re-add the missing sysfs writeback_rate_minimum attribute mapping to
"allow the user to specify a minimum rate at which dirty blocks are
retired."
Fixes: 1d316e6 ("bcache: implement PI controller for writeback rate")
Signed-off-by: Ben Peddell <klightspeed@killerwolves.net>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When bcache device is clean, dirty keys may still exist after
journal replay, so we need to count these dirty keys even
device in clean status, otherwise after writeback, the amount
of dirty data would be incorrect.
Signed-off-by: Tang Junhui <tang.junhui.linux@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The code comments of closure_return_with_destructor() in closure.h makrs
function name as closure_return(). This patch fixes this type with the
correct name - closure_return_with_destructor.
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When doing ioctl in flash device, it will call ioctl_dev() in super.c,
then we should not to get cached device since flash only device has
no backend device. This patch just move the jugement dc->io_disable
to cached_dev_ioctl() to make ioctl in flash device correctly.
Fixes: 0f0709e6bf ("bcache: stop bcache device when backing device is offline")
Signed-off-by: Tang Junhui <tang.junhui.linux@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In cached_dev_cache_miss() and check_should_bypass(), REQ_META is used
to check whether a bio is for metadata request. REQ_META is used for
blktrace, the correct REQ_ flag should be REQ_PRIO. This flag means the
bio should be prior to other bio, and frequently be used to indicate
metadata io in file system code.
This patch replaces REQ_META with correct flag REQ_PRIO.
CC Adam Manzanares because he explains to me what REQ_PRIO is for.
Signed-off-by: Coly Li <colyli@suse.de>
Cc: Adam Manzanares <adam.manzanares@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Missed reading IOs are identified by s->cache_missed, not the
s->cache_miss, so in trace_bcache_read() using trace_bcache_read
to identify whether the IO is missed or not.
Signed-off-by: Tang Junhui <tang.junhui.linux@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
UUIDs are considered as metadata. __uuid_write should add the number
of buckets (in sectors) written to disk to ca->meta_sectors_written.
Currently only 1 bucket is used in uuid write.
Steps to test:
1) create a fresh backing device and a fresh cache device separately.
The backing device didn't attach to any cache set.
2) cd /sys/block/<cache device>/bcache
cat metadata_written // record the output value
cat bucket_size
3) attach the backing device to cache set
4) cat metadata_written
The output value is almost the same as the value in step 2
before the change.
After the change, the value is bigger about 1 bucket size.
Signed-off-by: Shenghui Wang <shhuiw@foxmail.com>
Reviewed-by: Tang Junhui <tang.junhui.linux@gmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When debugging e.g. the SCSI timeout handler it is important that
requests that have not yet been started or that already have
completed are also reported through debugfs.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pull NVMe updates from Christoph:
"A relatively boring merge window:
- better AEN tracing (Chaitanya)
- NUMA aware PCIe multipathing (me)
- RDMA workqueue fixes (Sagi)
- better bio usage in the target (Sagi)
- FC rework for target removal (James)
- better multipath handling of ->queue_rq failures (James)
- various cleanups (Milan)"
* 'nvme-4.20' of git://git.infradead.org/nvme:
nvmet-rdma: use a private workqueue for delete
nvme: take node locality into account when selecting a path
nvmet: don't split large I/Os unconditionally
nvme: call nvme_complete_rq when nvmf_check_ready fails for mpath I/O
nvme-core: add async event trace helper
nvme_fc: add 'nvme_discovery' sysfs attribute to fc transport device
nvmet_fc: support target port removal with nvmet layer
nvme-fc: fix for a minor typos
nvmet: remove redundant module prefix
nvme: fix typo in nvme_identify_ns_descs
Queue deletion is done asynchronous when the last reference on the queue
is dropped. Thus, in order to make sure we don't over allocate under a
connect/disconnect storm, we let queue deletion complete before making
forward progress.
However, given that we flush the system_wq from rdma_cm context which
runs from a workqueue context, we can have a circular locking complaint
[1]. Fix that by using a private workqueue for queue deletion.
[1]:
======================================================
WARNING: possible circular locking dependency detected
4.19.0-rc4-dbg+ #3 Not tainted
------------------------------------------------------
kworker/5:0/39 is trying to acquire lock:
00000000a10b6db9 (&id_priv->handler_mutex){+.+.}, at: rdma_destroy_id+0x6f/0x440 [rdma_cm]
but task is already holding lock:
00000000331b4e2c ((work_completion)(&queue->release_work)){+.+.}, at: process_one_work+0x3ed/0xa20
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 ((work_completion)(&queue->release_work)){+.+.}:
process_one_work+0x474/0xa20
worker_thread+0x63/0x5a0
kthread+0x1cf/0x1f0
ret_from_fork+0x24/0x30
-> #2 ((wq_completion)"events"){+.+.}:
flush_workqueue+0xf3/0x970
nvmet_rdma_cm_handler+0x133d/0x1734 [nvmet_rdma]
cma_ib_req_handler+0x72f/0xf90 [rdma_cm]
cm_process_work+0x2e/0x110 [ib_cm]
cm_req_handler+0x135b/0x1c30 [ib_cm]
cm_work_handler+0x2b7/0x38cd [ib_cm]
process_one_work+0x4ae/0xa20
nvmet_rdma:nvmet_rdma_cm_handler: nvmet_rdma: disconnected (10): status 0 id 0000000040357082
worker_thread+0x63/0x5a0
kthread+0x1cf/0x1f0
ret_from_fork+0x24/0x30
nvme nvme0: Reconnecting in 10 seconds...
-> #1 (&id_priv->handler_mutex/1){+.+.}:
__mutex_lock+0xfe/0xbe0
mutex_lock_nested+0x1b/0x20
cma_ib_req_handler+0x6aa/0xf90 [rdma_cm]
cm_process_work+0x2e/0x110 [ib_cm]
cm_req_handler+0x135b/0x1c30 [ib_cm]
cm_work_handler+0x2b7/0x38cd [ib_cm]
process_one_work+0x4ae/0xa20
worker_thread+0x63/0x5a0
kthread+0x1cf/0x1f0
ret_from_fork+0x24/0x30
-> #0 (&id_priv->handler_mutex){+.+.}:
lock_acquire+0xc5/0x200
__mutex_lock+0xfe/0xbe0
mutex_lock_nested+0x1b/0x20
rdma_destroy_id+0x6f/0x440 [rdma_cm]
nvmet_rdma_release_queue_work+0x8e/0x1b0 [nvmet_rdma]
process_one_work+0x4ae/0xa20
worker_thread+0x63/0x5a0
kthread+0x1cf/0x1f0
ret_from_fork+0x24/0x30
Fixes: 777dc82395 ("nvmet-rdma: occasionally flush ongoing controller teardown")
Reported-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Tested-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Some time ago REQ_DISCARD was renamed into REQ_OP_DISCARD. Some comments
and documentation files were not updated however. Update these comments
and documentation files. See also commit 4e1b2d52a8 ("block, fs,
drivers: remove REQ_OP compat defs and related code").
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Philipp Reisner <philipp.reisner@linbit.com>
Cc: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
There is another cast from unsigned long to int which causes
a bounds check to fail with specially crafted input. The value is
then used as an index in the slot array in cdrom_slot_status().
This issue is similar to CVE-2018-16658 and CVE-2018-10940.
Signed-off-by: Young_X <YangX92@hotmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Replace "fallthru" with a proper "fall through" annotation.
This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Make current_path an array with an entry for every possible node, and
cache the best path on a per-node basis. Take the node distance into
account when selecting it. This is primarily useful for dual-ported PCIe
devices which are connected to PCIe root ports on different sockets.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
If we know that the I/O size exceeds our inline bio vec, no
point using it and split the rest to begin with. We could
in theory reuse the inline bio and only allocate the bio_vec,
but its really not worth optimizing for.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
When an io is rejected by nvmf_check_ready() due to validation of the
controller state, the nvmf_fail_nonready_command() will normally return
BLK_STS_RESOURCE to requeue and retry. However, if the controller is
dying or the I/O is marked for NVMe multipath, the I/O is failed so that
the controller can terminate or so that the io can be issued on a
different path. Unfortunately, as this reject point is before the
transport has accepted the command, blk-mq ends up completing the I/O
and never calls nvme_complete_rq(), which is where multipath may preserve
or re-route the I/O. The end result is, the device user ends up seeing an
EIO error.
Example: single path connectivity, controller is under load, and a reset
is induced. An I/O is received:
a) while the reset state has been set but the queues have yet to be
stopped; or
b) after queues are started (at end of reset) but before the reconnect
has completed.
The I/O finishes with an EIO status.
This patch makes the following changes:
- Adds the HOST_PATH_ERROR pathing status from TP4028
- Modifies the reject point such that it appears to queue successfully,
but actually completes the io with the new pathing status and calls
nvme_complete_rq().
- nvme_complete_rq() recognizes the new status, avoids resetting the
controller (likely was already done in order to get this new status),
and calls the multipather to clear the current path that errored.
This allows the next command (retry or new command) to select a new
path if there is one.
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This patch adds a new event for nvme async event notification.
We print the async event in the decoded format when we recognize
the event otherwise we just dump the result.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The fc transport device should allow for a rediscovery, as userspace
might have lost the events. Example is udev events not handled during
system startup.
This patch add a sysfs entry 'nvme_discovery' on the fc class to
have it replay all udev discovery events for all local port/remote
port address pairs.
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Currently, if a targetport has been connected to via the nvmet config
(in other words, the add_port() transport routine called, and the nvmet
port pointer stored for using in upcalls on new io), and if the
targetport is then removed (say the lldd driver decides to unload or
fully reset its hardware) and then re-added (the lldd driver reloads or
reinits its hardware), the port pointer has been lost so there's no way
to continue to post commands up to nvmet via the transport port.
Correct by allocating a small "port context" structure that will be
linked to by the targetport. The context will save the targetport WWN's
and the nvmet port pointer to use for it. Initial allocation will occur
when the targetport is bound to via add_port. The context will be
deallocated when remove_port() is called. If a targetport is removed
while nvmet has the active port context, the targetport will be unlinked
from the port context before removal. If a new targetport is registered,
the port contexts without a binding are looked through and if the WWN's
match (so it's the same as nvmet's port context) the port context is
linked to the new target port. Thus new io can be received on the new
targetport and operation resumes with nvmet.
Additionally, this also resolves nvmet configuration changing out from
underneath of the nvme-fc target port (for example: a nvmetcli clear).
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This patch removes the redundant module prefix used in the pr_err() when
nvmet_get_smart_log_nsid() failed to find the namespace provided as a part
of smart-log command.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Milan P. Gandhi <mgandhi@redhat.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
-----BEGIN PGP SIGNATURE-----
iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAluw4MIACgkQONu9yGCS
aT7+8xAAiYnc4khUsxeInm3z44WPfRX1+UF51frTNSY5C8Nn5nvRSnTUNLuKkkrz
8RbwCL6UYyJxF9I/oZdHPsPOD4IxXkQY55tBjz7ZbSBIFEwYM6RJMm8mAGlXY7wq
VyWA5MhlpGHM9DjrguB4DMRipnrSc06CVAnC+ZyKLjzblzU1Wdf2dYu+AW9pUVXP
j4r74lFED5djPY1xfqfzEwmYRCeEGYGx7zMqT3GrrF5uFPqj1H6O5klEsAhIZvdl
IWnJTU2coC8R/Sd17g4lHWPIeQNnMUGIUbu+PhIrZ/lDwFxlocg4BvarPXEdzgYi
gdZzKBfovpEsSu5RCQsKWG4IGQxY7I1p70IOP9eqEFHZy77qT1YcHVAWrK1Y/bJd
UA08gUOSzRnhKkNR3+PsaMflUOl9WkpyHECZu394cyRGMutSS50aWkavJPJ/o1Qi
D/oGqZLLcKFyuNcchG+Met1TzY3LvYEDgSburqwqeUZWtAsGs8kmiiq7qvmXx4zV
IcgM8ERqJ8mbfhfsXQU7hwydIrPJ3JdIq19RnM5ajbv2Q4C/qJCyAKkQoacrlKR4
aiow/qvyNrP80rpXfPJB8/8PiWeDtAnnGhM+xySZNlw3t8GR6NYpUkIzf5TdkSb3
C8KuKg6FY9QAS62fv+5KK3LB/wbQanxaPNruQFGe5K1iDQ5Fvzw=
=dMl4
-----END PGP SIGNATURE-----
Merge tag 'v4.19-rc6' into for-4.20/block
Merge -rc6 in, for two reasons:
1) Resolve a trivial conflict in the blk-mq-tag.c documentation
2) A few important regression fixes went into upstream directly, so
they aren't in the 4.20 branch.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
* tag 'v4.19-rc6': (780 commits)
Linux 4.19-rc6
MAINTAINERS: fix reference to moved drivers/{misc => auxdisplay}/panel.c
cpufreq: qcom-kryo: Fix section annotations
perf/core: Add sanity check to deal with pinned event failure
xen/blkfront: correct purging of persistent grants
Revert "xen/blkfront: When purging persistent grants, keep them in the buffer"
selftests/powerpc: Fix Makefiles for headers_install change
blk-mq: I/O and timer unplugs are inverted in blktrace
dax: Fix deadlock in dax_lock_mapping_entry()
x86/boot: Fix kexec booting failure in the SEV bit detection code
bcache: add separate workqueue for journal_write to avoid deadlock
drm/amd/display: Fix Edid emulation for linux
drm/amd/display: Fix Vega10 lightup on S3 resume
drm/amdgpu: Fix vce work queue was not cancelled when suspend
Revert "drm/panel: Add device_link from panel device to DRM device"
xen/blkfront: When purging persistent grants, keep them in the buffer
clocksource/drivers/timer-atmel-pit: Properly handle error cases
block: fix deadline elevator drain for zoned block devices
ACPI / hotplug / PCI: Don't scan for non-hotplug bridges if slot is not bridge
drm/syncobj: Don't leak fences when WAIT_FOR_SUBMIT is set
...
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- MAINTAINERS reference fix for moved file
Reported by Joe Perches
-----BEGIN PGP SIGNATURE-----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=7ZGd
-----END PGP SIGNATURE-----
Merge tag 'auxdisplay-for-greg-v4.19-rc6' of https://github.com/ojeda/linux
Miguel writes:
"A trivial fix for auxdisplay
- MAINTAINERS reference fix for moved file
Reported by Joe Perches"
* tag 'auxdisplay-for-greg-v4.19-rc6' of https://github.com/ojeda/linux:
MAINTAINERS: fix reference to moved drivers/{misc => auxdisplay}/panel.c
Fix a deadlock in the new for 4.19 dax_lock_mapping_entry() routine.
-----BEGIN PGP SIGNATURE-----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=3l8a
-----END PGP SIGNATURE-----
Merge tag 'libnvdimm-fixes2-4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Dan writes:
"filesystem-dax for 4.19-rc6
Fix a deadlock in the new for 4.19 dax_lock_mapping_entry() routine."
* tag 'libnvdimm-fixes2-4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax: Fix deadlock in dax_lock_mapping_entry()
Commit 51c1e9b554 ("auxdisplay: Move panel.c to drivers/auxdisplay folder")
moved the file, but the MAINTAINERS reference was not updated.
Link: https://lore.kernel.org/lkml/20180928220131.31075-1-joe@perches.com/
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
-----BEGIN PGP SIGNATURE-----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=8c0k
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20180929' of git://git.kernel.dk/linux-block
Jens writes:
"Block fixes for 4.19-rc6
A set of fixes that should go into this release. This pull request
contains:
- A fix (hopefully) for the persistent grants for xen-blkfront. A
previous fix from this series wasn't complete, hence reverted, and
this one should hopefully be it. (Boris Ostrovsky)
- Fix for an elevator drain warning with SMR devices, which is
triggered when you switch schedulers (Damien)
- bcache deadlock fix (Guoju Fang)
- Fix for the block unplug tracepoint, which has had the
timer/explicit flag reverted since 4.11 (Ilya)
- Fix a regression in this series where the blk-mq timeout hook is
invoked with the RCU read lock held, hence preventing it from
blocking (Keith)
- NVMe pull from Christoph, with a single multipath fix (Susobhan Dey)"
* tag 'for-linus-20180929' of git://git.kernel.dk/linux-block:
xen/blkfront: correct purging of persistent grants
Revert "xen/blkfront: When purging persistent grants, keep them in the buffer"
blk-mq: I/O and timer unplugs are inverted in blktrace
bcache: add separate workqueue for journal_write to avoid deadlock
xen/blkfront: When purging persistent grants, keep them in the buffer
block: fix deadline elevator drain for zoned block devices
blk-mq: Allow blocking queue tag iter callbacks
nvme: properly propagate errors in nvme_mpath_init
Thomas writes:
"A single fix for the AMD memory encryption boot code so it does not
read random garbage instead of the cached encryption bit when a kexec
kernel is allocated above the 32bit address limit."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Fix kexec booting failure in the SEV bit detection code
Thomas writes:
"Three small fixes for clocksource drivers:
- Proper error handling in the Atmel PIT driver
- Add CLOCK_SOURCE_SUSPEND_NONSTOP for TI SoCs so suspend works again
- Fix the next event function for Facebook Backpack-CMM BMC chips so
usleep(100) doesnt sleep several milliseconds"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/timer-atmel-pit: Properly handle error cases
clocksource/drivers/fttmr010: Fix set_next_event handler
clocksource/drivers/ti-32k: Add CLOCK_SOURCE_SUSPEND_NONSTOP flag for non-am43 SoCs
Thomas writes:
"A single fix for a missing sanity check when a pinned event is tried
to be read on the wrong CPU due to a legit event scheduling failure."
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Add sanity check to deal with pinned event failure
There is currently a warning when building the Kryo cpufreq driver into
the kernel image:
WARNING: vmlinux.o(.text+0x8aa424): Section mismatch in reference from
the function qcom_cpufreq_kryo_probe() to the function
.init.text:qcom_cpufreq_kryo_get_msm_id()
The function qcom_cpufreq_kryo_probe() references
the function __init qcom_cpufreq_kryo_get_msm_id().
This is often because qcom_cpufreq_kryo_probe lacks a __init
annotation or the annotation of qcom_cpufreq_kryo_get_msm_id is wrong.
Remove the '__init' annotation from qcom_cpufreq_kryo_get_msm_id
so that there is no more mismatch warning.
Additionally, Nick noticed that the remove function was marked as
'__init' when it should really be marked as '__exit'.
Fixes: 46e2856b8e (cpufreq: Add Kryo CPU scaling driver)
Fixes: 5ad7346b4a (cpufreq: kryo: Add module remove and exit)
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.18+ <stable@vger.kernel.org> # 4.18+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-----BEGIN PGP SIGNATURE-----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=QKIn
-----END PGP SIGNATURE-----
Merge tag 'dma-mapping-4.19-3' of git://git.infradead.org/users/hch/dma-mapping
Christoph writes:
"dma mapping fix for 4.19-rc6
fix a missing Kconfig symbol for commits introduced in 4.19-rc"
* tag 'dma-mapping-4.19-3' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration
Dmitry writes:
"Input updates for v4.19-rc5
Just a few driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: uinput - allow for max == min during input_absinfo validation
Input: elantech - enable middle button of touchpad on ThinkPad P72
Input: atakbd - fix Atari CapsLock behaviour
Input: atakbd - fix Atari keymap
Input: egalax_ts - add system wakeup support
Input: gpio-keys - fix a documentation index issue
Quite a few fixes for the Renesas drivers in here, plus a fix for the
Tegra driver and some documentation fixes for the recently added spi-mem
code. The Tegra fix is relatively large but fairly straightforward and
mechanical, it runs on probe so it's been reasonably well covered in
-next testing.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAluuOnETHGJyb29uaWVA
a2VybmVsLm9yZwAKCRAk1otyXVSH0AhkB/9ahKdmxdxu0uuzzvS5qmdGD+98dTaV
M+7+Bq6CJfBz0YTc9dxTiynbJot15vo5mKDZkDaJrgOoLCWWDGWa/DjRif2qS2o9
QxjWlBPzfOhKb81/HMJ+MaIHYDtAxvCu4iZExUZPxZzypX8Q9U3+9a/u0+JnRug2
guQ/4vYdxTGbR/taFsKLzf28DRqQb74KuDRAHaN44UYBxA1begy5gFOc7cEQTRu0
WACGM8jNL2eWWLXDNnQQTfb2t1v7LbbMorazyCn2e5ujamE4+DSaYWJF5axZiaQN
ZcRVATw0SPiQlsQW/G014SSFJT0waybxWLOynWS9MSgjx84/GRYWvxRv
=3ATM
-----END PGP SIGNATURE-----
Merge tag 'spi-fix-v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Mark writes:
"spi: Fixes for v4.19
Quite a few fixes for the Renesas drivers in here, plus a fix for the
Tegra driver and some documentation fixes for the recently added
spi-mem code. The Tegra fix is relatively large but fairly
straightforward and mechanical, it runs on probe so it's been
reasonably well covered in -next testing."
* tag 'spi-fix-v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spi-mem: Move the DMA-able constraint doc to the kerneldoc header
spi: spi-mem: Add missing description for data.nbytes field
spi: rspi: Fix interrupted DMA transfers
spi: rspi: Fix invalid SPI use during system suspend
spi: sh-msiof: Fix handling of write value for SISTR register
spi: sh-msiof: Fix invalid SPI use during system suspend
spi: gpio: Fix copy-and-paste error
spi: tegra20-slink: explicitly enable/disable clock
Javier González