Sagi Grimberg [Fri, 2 Nov 2018 18:22:13 +0000 (11:22 -0700)]
nvme: make sure ns head inherits underlying device limits
Whenever we update ns_head info, we need to make sure it is still
compatible with all underlying backing devices because although nvme
multipath doesn't have any explicit use of these limits, other devices
can still be stacked on top of it which may rely on the underlying limits.
Start with unlimited stacking limits, and every info update iterate over
siblings and adjust queue limits.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Sagi Grimberg [Fri, 2 Nov 2018 23:12:21 +0000 (16:12 -0700)]
nvmet: don't try to add ns to p2p map unless it actually uses it
Even without CONFIG_P2PDMA this results in a error print:
nvmet: no peer-to-peer memory is available that's supported by rxe0 and /dev/nullb0
Fixes: c6925093d0b2 ("nvmet: Optionally use PCI P2P memory")
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Kuninori Morimoto [Thu, 8 Nov 2018 06:34:34 +0000 (06:34 +0000)]
sata_rcar: convert to SPDX identifiers
This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Anton Ivanov [Thu, 8 Nov 2018 13:07:23 +0000 (13:07 +0000)]
ubd: fix missing initialization of io_req
The SYNC path doesn't initialize io_req->error, which can cause
random errors. Before the conversion to blk-mq, we always
completed requests with BLK_STS_OK status, but now we actually
look at the error field and this issue becomes apparent.
Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
[axboe: fixed up commit message to explain what is actually going on]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Keith Busch [Wed, 7 Nov 2018 14:37:45 +0000 (07:37 -0700)]
block: Clear kernel memory before copying to user
If the kernel allocates a bounce buffer for user read data, this memory
needs to be cleared before copying it to the user, otherwise it may leak
kernel memory to user space.
Laurence Oberman <loberman@redhat.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Geert Uytterhoeven [Wed, 7 Nov 2018 09:47:57 +0000 (10:47 +0100)]
MAINTAINERS: Fix remaining pointers to obsolete libata.git
libata.git no longer exists. Replace the remaining pointers to it by
pointers to the block tree, which is where all libata development
happens now.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Wed, 7 Nov 2018 21:34:05 +0000 (14:34 -0700)]
ubd: fix missing lock around request issue
We need to hold the device lock (and disable interrupts) while
writing new commands, or we could be interrupted while that
is happening and read invalid requests in the completion path.
Fixes: 4e6da0fe8058 ("um: Convert ubd driver to blk-mq")
Tested-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Johannes Thumshirn [Wed, 7 Nov 2018 13:58:14 +0000 (14:58 +0100)]
block: respect virtual boundary mask in bvecs
With drivers that are settting a virtual boundary constrain, we are
seeing a lot of bio splitting and smaller I/Os being submitted to the
driver.
This happens because the bio gap detection code does not account cases
where PAGE_SIZE - 1 is bigger than queue_virt_boundary() and thus will
split the bio unnecessarily.
Cc: Jan Kara <jack@suse.cz>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Keith Busch [Wed, 31 Oct 2018 19:15:29 +0000 (13:15 -0600)]
nvme-pci: fix conflicting p2p resource adds
The nvme pci driver had been adding its CMB resource to the P2P DMA
subsystem everytime on on a controller reset. This results in the
following warning:
------------[ cut here ]------------
nvme 0000:00:03.0: Conflicting mapping in same section
WARNING: CPU: 7 PID: 81 at kernel/memremap.c:155 devm_memremap_pages+0xa6/0x380
...
Call Trace:
pci_p2pdma_add_resource+0x153/0x370
nvme_reset_work+0x28c/0x17b1 [nvme]
? add_timer+0x107/0x1e0
? dequeue_entity+0x81/0x660
? dequeue_entity+0x3b0/0x660
? pick_next_task_fair+0xaf/0x610
? __switch_to+0xbc/0x410
process_one_work+0x1cf/0x350
worker_thread+0x215/0x3d0
? process_one_work+0x350/0x350
kthread+0x107/0x120
? kthread_park+0x80/0x80
ret_from_fork+0x1f/0x30
---[ end trace
f7ea76ac6ee72727 ]---
nvme nvme0: failed to register the CMB
This patch fixes this by registering the CMB with P2P only once.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
James Smart [Sat, 27 Oct 2018 19:41:54 +0000 (12:41 -0700)]
nvme-fc: fix request private initialization
The patch made to avoid Coverity reporting of out of bounds access
on aen_op moved the assignment of a pointer, leaving it null when it
was subsequently used to calculate a private pointer. Thus the private
pointer was bad.
Move/correct the private pointer initialization to be in sync with the
patch.
Fixes: 0d2bdf9f4134 ("nvme-fc: rework the request initialization code")
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Dennis Zhou [Thu, 1 Nov 2018 21:24:10 +0000 (17:24 -0400)]
blkcg: revert blkcg cleanups series
This reverts a series committed earlier due to null pointer exception
bug report in [1]. It seems there are edge case interactions that I did
not consider and will need some time to understand what causes the
adverse interactions.
The original series can be found in [2] with a follow up series in [3].
[1] https://www.spinics.net/lists/cgroups/msg20719.html
[2] https://lore.kernel.org/lkml/
20180911184137.35897-1-dennisszhou@gmail.com/
[3] https://lore.kernel.org/lkml/
20181020185612.51587-1-dennis@kernel.org/
This reverts the following commits:
d459d853c2ed,
b2c3fa546705,
101246ec02b5,
b3b9f24f5fcc,
e2b0989954ae,
f0fcb3ec89f3,
c839e7a03f92,
bdc2491708c4,
74b7c02a9bc1,
5bf9a1f3b4ef,
a7b39b4e961c,
07b05bcc3213,
49f4c2dc2b50,
27e6fa996c53
Signed-off-by: Dennis Zhou <dennis@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Ming Lei [Fri, 2 Nov 2018 00:50:51 +0000 (08:50 +0800)]
block: brd: associate with queue until adding disk
brd_free() may be called in failure path on one brd instance which
disk isn't added yet, so release handler of gendisk may free the
associated request_queue early and causes the following use-after-free[1].
This patch fixes this issue by associating gendisk with request_queue
just before adding disk.
[1] KASAN: use-after-free Read in del_timer_syncNon-volatile memory driver v1.3
Linux agpgart interface v0.103
[drm] Initialized vgem 1.0.0
20120112 for virtual device on minor 0
usbcore: registered new interface driver udl
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x36d9/0x4c20
kernel/locking/lockdep.c:3218
Read of size 8 at addr
ffff8801d1b6b540 by task swapper/0/1
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.19.0+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
print_address_description.cold.7+0x9/0x1ff mm/kasan/report.c:256
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report.cold.8+0x242/0x309 mm/kasan/report.c:412
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
__lock_acquire+0x36d9/0x4c20 kernel/locking/lockdep.c:3218
lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844
del_timer_sync+0xb7/0x270 kernel/time/timer.c:1283
blk_cleanup_queue+0x413/0x710 block/blk-core.c:809
brd_free+0x5d/0x71 drivers/block/brd.c:422
brd_init+0x2eb/0x393 drivers/block/brd.c:518
do_one_initcall+0x145/0x957 init/main.c:890
do_initcall_level init/main.c:958 [inline]
do_initcalls init/main.c:966 [inline]
do_basic_setup init/main.c:984 [inline]
kernel_init_freeable+0x5c6/0x6b9 init/main.c:1148
kernel_init+0x11/0x1ae init/main.c:1068
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350
Reported-by: syzbot+3701447012fe951dabb2@syzkaller.appspotmail.com
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Ming Lei [Wed, 24 Oct 2018 13:18:09 +0000 (21:18 +0800)]
block: call rq_qos_exit() after queue is frozen
rq_qos_exit() removes the current q->rq_qos, this action has to be
done after queue is frozen, otherwise the IO queue path may never
be waken up, then IO hang is caused.
So fixes this issue by moving rq_qos_exit() after queue is frozen.
Cc: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Colin Ian King [Tue, 30 Oct 2018 11:29:42 +0000 (11:29 +0000)]
mtip32xx: clean an indentation issue, remove extraneous tabs
Trivial fix to clean up an indentation issue, remove tabs
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jianchao Wang [Sat, 27 Oct 2018 11:52:14 +0000 (19:52 +0800)]
block: fix the DISCARD request merge
There are two cases when handle DISCARD merge.
If max_discard_segments == 1, the bios/requests need to be contiguous
to merge. If max_discard_segments > 1, it takes every bio as a range
and different range needn't to be contiguous.
But now, attempt_merge screws this up. It always consider contiguity
for DISCARD for the case max_discard_segments > 1 and cannot merge
contiguous DISCARD for the case max_discard_segments == 1, because
rq_attempt_discard_merge always returns false in this case.
This patch fixes both of the two cases above.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diego Viola [Fri, 26 Oct 2018 13:45:16 +0000 (10:45 -0300)]
libata: Apply NOLPM quirk for SAMSUNG MZ7TD256HAFV-000L9
med_power_with_dipm causes my T450 to freeze with a SAMSUNG
MZ7TD256HAFV-000L9 SSD (firmware DXT02L5Q).
Switching the LPM to max_performance fixes this issue.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Diego Viola <diego.viola@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Federico Motta [Wed, 24 Oct 2018 17:13:25 +0000 (19:13 +0200)]
block, bfq: fix asymmetric scenarios detection
Since commit
2d29c9f89fcd ("block, bfq: improve asymmetric scenarios
detection"), a scenario is defined asymmetric when one of the
following conditions holds:
- active bfq_queues have different weights
- one or more group of entities (bfq_queue or other groups of entities)
are active
bfq grants fairness and low latency also in such asymmetric scenarios,
by plugging the dispatching of I/O if the bfq_queue in service happens
to be temporarily idle. This plugging may lower throughput, so it is
important to do it only when strictly needed.
By mistake, in commit '
2d29c9f89fcd' ("block, bfq: improve asymmetric
scenarios detection") the num_active_groups counter was firstly
incremented and subsequently decremented at any entity (group or
bfq_queue) weight change.
This is useless, because only transitions from active to inactive and
vice versa matter for that counter. Unfortunately this is also
incorrect in the following case: the entity at issue is a bfq_queue
and it is under weight raising. In fact in this case there is a
spurious increment of the num_active_groups counter.
This spurious increment may cause scenarios to be wrongly detected as
asymmetric, thus causing useless plugging and loss of throughput.
This commit fixes this issue by simply removing the above useless and
wrong increments and decrements.
Fixes: 2d29c9f89fcd ("block, bfq: improve asymmetric scenarios detection")
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Federico Motta <federico@willer.it>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Thu, 25 Oct 2018 14:15:30 +0000 (08:15 -0600)]
gdrom: fix mistake in assignment of error
Apparently the kbuild bots missed this one originally, but at least
it caught it now. Fix compilation error:
All errors (new ones prefixed by >>):
drivers/cdrom/gdrom.c: In function 'probe_gdrom':
>> drivers/cdrom/gdrom.c:797:3: error: 'rc' undeclared (first use in this function)
rc = PTR_ERR(gd.gdrom_rq);
^~
drivers/cdrom/gdrom.c:797:3: note: each undeclared identifier is reported only once for each function it appears in
Fixes: ad5fc6bb7221 ("gdrom: convert to blk-mq")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Xiaoguang Wang [Tue, 23 Oct 2018 14:30:50 +0000 (22:30 +0800)]
blk-mq: place trace_block_getrq() in correct place
trace_block_getrq() is to indicate a request struct has been allocated
for queue, so put it in right place.
Reviewed-by: Jianchao Wang <jianchao.w.wang@oracle.com>
Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:50 +0000 (19:08 +0900)]
block: Introduce blk_revalidate_disk_zones()
Drivers exposing zoned block devices have to initialize and maintain
correctness (i.e. revalidate) of the device zone bitmaps attached to
the device request queue (seq_zones_bitmap and seq_zones_wlock).
To simplify coding this, introduce a generic helper function
blk_revalidate_disk_zones() suitable for most (and likely all) cases.
This new function always update the seq_zones_bitmap and seq_zones_wlock
bitmaps as well as the queue nr_zones field when called for a disk
using a request based queue. For a disk using a BIO based queue, only
the number of zones is updated since these queues do not have
schedulers and so do not need the zone bitmaps.
With this change, the zone bitmap initialization code in sd_zbc.c can be
replaced with a call to this function in sd_zbc_read_zones(), which is
called from the disk revalidate block operation method.
A call to blk_revalidate_disk_zones() is also added to the null_blk
driver for devices created with the zoned mode enabled.
Finally, to ensure that zoned devices created with dm-linear or
dm-flakey expose the correct number of zones through sysfs, a call to
blk_revalidate_disk_zones() is added to dm_table_set_restrictions().
The zone bitmaps allocated and initialized with
blk_revalidate_disk_zones() are freed automatically from
__blk_release_queue() using the block internal function
blk_queue_free_zone_bitmaps().
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Christoph Hellwig [Fri, 12 Oct 2018 10:08:49 +0000 (19:08 +0900)]
block: add a report_zones method
Dispatching a report zones command through the request queue is a major
pain due to the command reply payload rewriting necessary. Given that
blkdev_report_zones() is executing everything synchronously, implement
report zones as a block device file operation instead, allowing major
simplification of the code in many places.
sd, null-blk, dm-linear and dm-flakey being the only block device
drivers supporting exposing zoned block devices, these drivers are
modified to provide the device side implementation of the
report_zones() block device file operation.
For device mappers, a new report_zones() target type operation is
defined so that the upper block layer calls blkdev_report_zones() can
be propagated down to the underlying devices of the dm targets.
Implementation for this new operation is added to the dm-linear and
dm-flakey targets.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
[Damien]
* Changed method block_device argument to gendisk
* Various bug fixes and improvements
* Added support for null_blk, dm-linear and dm-flakey.
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:48 +0000 (19:08 +0900)]
block: Expose queue nr_zones in sysfs
Expose through sysfs the nr_zones field of struct request_queue.
Exposing this value helps in debugging disk issues as well as
facilitating scripts based use of the disk (e.g. blktests).
For zoned block devices, the nr_zones field indicates the total number
of zones of the device calculated using the known disk capacity and
zone size. This number of zones is always 0 for regular block devices.
Since nr_zones is defined conditionally with CONFIG_BLK_DEV_ZONED,
introduce the blk_queue_nr_zones() function to return the correct value
for any device, regardless if CONFIG_BLK_DEV_ZONED is set.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:47 +0000 (19:08 +0900)]
block: Improve zone reset execution
There is no need to synchronously execute all REQ_OP_ZONE_RESET BIOs
necessary to reset a range of zones. Similarly to what is done for
discard BIOs in blk-lib.c, all zone reset BIOs can be chained and
executed asynchronously and a synchronous call done only for the last
BIO of the chain.
Modify blkdev_reset_zones() to operate similarly to
blkdev_issue_discard() using the next_bio() helper for chaining BIOs. To
avoid code duplication of that function in blk_zoned.c, rename
next_bio() into blk_next_bio() and declare it as a block internal
function in blk.h.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:46 +0000 (19:08 +0900)]
block: Introduce BLKGETNRZONES ioctl
Get a zoned block device total number of zones. The device can be a
partition of the whole device. The number of zones is always 0 for
regular block devices.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:45 +0000 (19:08 +0900)]
block: Introduce BLKGETZONESZ ioctl
Get a zoned block device zone size in number of 512 B sectors.
The zone size is always 0 for regular block devices.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:44 +0000 (19:08 +0900)]
block: Limit allocation of zone descriptors for report zones
There is no point in allocating more zone descriptors than the number of
zones a block device has for doing a zone report. Avoid doing that in
blkdev_report_zones_ioctl() by limiting the number of zone decriptors
allocated internally to process the user request.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:43 +0000 (19:08 +0900)]
block: Introduce blkdev_nr_zones() helper
Introduce the blkdev_nr_zones() helper function to get the total
number of zones of a zoned block device. This number is always 0 for a
regular block device (q->limits.zoned == BLK_ZONED_NONE case).
Replace hard-coded number of zones calculation in dmz_get_zoned_device()
with a call to this helper.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:42 +0000 (19:08 +0900)]
scsi: sd_zbc: Fix sd_zbc_check_zones() error checks
The unsigned 32 bits overflow check for the zone size value is already
done within sd_zbc_check_zones() with the test:
} else if (logical_to_sectors(sdkp->device, zone_blocks) > UINT_MAX) {
so there is no need to check again for an out of range value in
sd_zbc_read_zones(). Simplify the code and fix sd_zbc_check_zones()
error return to -EFBIG instead of -ENODEV if the zone size is too large.
Change the return type of sd_zbc_check_zones() to an int for the error
code and return the zone size (zone_blocks) through a u32 pointer to
avoid overflowing the signed 32 return value.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:41 +0000 (19:08 +0900)]
scsi: sd_zbc: Reduce boot device scan and revalidate time
Handling checks of ZBC device capacity using the max_lba field of the
REPORT ZONES command reply for disks with rc_basis == 0 can be done
using the same report zones command reply used to check the "same"
field.
Avoid executing a report zones command solely to check the disk capacity
by merging sd_zbc_check_capacity() into sd_zbc_check_zone_size() and
renaming that function to sd_zbc_check_zones(). This removes a costly
execution of a full report zones command and so reduces device scan
duration at boot time as well as the duration of disk revalidate calls.
Furthermore, setting the partial report bit in the REPORT ZONES command
cdb can significantly reduce this command execution time as the device
does not have to count and report the total number of zones that could
be reported assuming a large enough reply buffer. A non-partial zone
report is necessary only for the first execution of report zones used to
check the same field value (to ensure that this value applies to all
zones of the disk). All other calls to sd_zbc_report_zones() can use a
partial report to reduce execution time.
Using a 14 TB ZBC disk, these simple changes reduce device scan time at
boot from about 3.5s down to about 900ms. Disk revalidate times are also
reduced from about 450ms down to 230ms.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Damien Le Moal [Fri, 12 Oct 2018 10:08:40 +0000 (19:08 +0900)]
scsi: sd_zbc: Rearrange code
Move the urswrz check out of sd_zbc_read_zones() and into
sd_zbc_read_zoned_characteristics() where that value is obtained (read
from the disk zoned characteristics VPD page). Since this function now
does more than simply reading the VPD page, rename it to
sd_zbc_check_zoned_characteristics().
Also fix the error message displayed when reading that VPD page fails.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
zhong jiang [Tue, 23 Oct 2018 12:06:37 +0000 (20:06 +0800)]
cdrom: remove set but not used variable 'tocuse'
tocuse is not used after setting its value. It is safe to remove
the unused variable.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Gustavo A. R. Silva [Fri, 19 Oct 2018 18:44:17 +0000 (20:44 +0200)]
skd: fix unchecked return values
Check return values of dma_set_mask_and_coherent().
Otherwise, if dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
fails, the following piece of code will be executed even when the call
to dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); returns 0:
dev_err(&pdev->dev, "DMA mask error %d\n", rc);
goto err_out_regions;
Addresses-Coverity-ID:
1474553 ("Unchecked return value")
Fixes: 138126214868 ("skd: switch to the generic DMA API")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Vasilis Liaskovitis [Mon, 15 Oct 2018 13:25:08 +0000 (15:25 +0200)]
xen/blkfront: avoid NULL blkfront_info dereference on device removal
If a block device is hot-added when we are out of grants,
gnttab_grant_foreign_access fails with -ENOSPC (log message "28
granting access to ring page") in this code path:
talk_to_blkback ->
setup_blkring ->
xenbus_grant_ring ->
gnttab_grant_foreign_access
and the failing path in talk_to_blkback sets the driver_data to NULL:
destroy_blkring:
blkif_free(info, 0);
mutex_lock(&blkfront_mutex);
free_info(info);
mutex_unlock(&blkfront_mutex);
dev_set_drvdata(&dev->dev, NULL);
This results in a NULL pointer BUG when blkfront_remove and blkif_free
try to access the failing device's NULL struct blkfront_info.
Cc: stable@vger.kernel.org # 4.5 and later
Signed-off-by: Vasilis Liaskovitis <vliaskovitis@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Linus Torvalds [Thu, 25 Oct 2018 16:00:15 +0000 (09:00 -0700)]
Merge tag 'sound-4.20-rc1' of git://git./linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"There have been little changes in ALSA core stuff, but ASoC core still
kept rolling for the continued restructuring. The rest are lots of
small driver-specific changes and some minor API updates. Here are
highlights:
General:
- Appropriate fall-through annotations everywhere
- Some code cleanup in memalloc code, handling non-cacahed pages more
commonly in the helper
- Deployment of SNDRV_PCM_INFO_SYNC_APPLPTR flag consistently
Drivers:
- More HD-audio CA0132 codec improvement for supporting other Creative
boards
- Plumbing legacy HD-audio codecs as ASoC BE on Intel SST; this will
give move support of existing HD-audio devices with DSP
- A few device-specific HD-audio quirks as usual
- New quirk for RME CC devices and correction for B&W PX for USB-audio
- FireWire: code refactoring including devres usages
ASoC Core:
- Continued componentization works; it's almost done!
- A bunch of new for_each_foo macros
- Cleanups and fixes in DAPM code
ASoC Drivers:
- MCLK support for several different devices, including CS42L51, STM32
SAI, and MAX98373
- Support for Allwinner A64 CODEC analog, Intel boards with DA7219 and
MAX98927, Meson AXG PDM inputs, Nuvoton NAU8822, Renesas R8A7744 and
TI PCM3060"
* tag 'sound-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (299 commits)
ASoC: stm32: sai: fix master clock naming
ASoC: stm32: add clock dependency for sai
ALSA: hda/ca0132 - Actually fix microphone issue
ASoC: sun4i-i2s: move code from startup/shutdown hooks into pm_runtime hooks
ASoC: wm2000: Remove wm2000_read helper function
ASoC: cs42l51: fix mclk support
ASoC: wm_adsp: Log addresses as 8 digits in wm_adsp_buffer_populate
ASoC: wm_adsp: Rename memory fields in wm_adsp_buffer
ASoC: cs42l51: add mclk support
ASoC: stm32: sai: set sai as mclk clock provider
ASoC: dt-bindings: add mclk support to cs42l51
ASoC: dt-bindings: add mclk provider support to stm32 sai
ASoC: soc-core: fix trivial checkpatch issues
ASoC: dapm: Add support for hw_free on CODEC to CODEC links
ASoC: Intel: kbl_da7219_max98927: minor white space clean up
ALSA: i2c/cs8427: Fix int to char conversion
ALSA: doc: Brush up the old writing-an-alsa-driver
ASoC: rsnd: tidyup SSICR::SWSP for TDM
ASoC: rsnd: enable TDM settings for SSI parent
ASoC: pcm3168a: add hw constraint for capture channel
...
Linus Torvalds [Thu, 25 Oct 2018 14:40:30 +0000 (07:40 -0700)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly updates of the usual drivers: UFS, esp_scsi, NCR5380,
qla2xxx, lpfc, libsas, hisi_sas.
In addition there's a set of mostly small updates to the target
subsystem a set of conversions to the generic DMA API, which do have
some potential for issues in the older drivers but we'll handle those
as case by case fixes.
A new myrs driver for the DAC960/mylex raid controllers to replace the
block based DAC960 which is also being removed by Jens in this merge
window.
Plus the usual slew of trivial changes"
[ "myrs" stands for "MYlex Raid Scsi". Obviously. Silly of me to even
wonder. There's also a "myrb" driver, where the 'b' stands for
'block'. Truly, somebody has got mad naming skillz. - Linus ]
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (237 commits)
scsi: myrs: Fix the processor absent message in processor_show()
scsi: myrs: Fix a logical vs bitwise bug
scsi: hisi_sas: Fix NULL pointer dereference
scsi: myrs: fix build failure on 32 bit
scsi: fnic: replace gross legacy tag hack with blk-mq hack
scsi: mesh: switch to generic DMA API
scsi: ips: switch to generic DMA API
scsi: smartpqi: fully convert to the generic DMA API
scsi: vmw_pscsi: switch to generic DMA API
scsi: snic: switch to generic DMA API
scsi: qla4xxx: fully convert to the generic DMA API
scsi: qla2xxx: fully convert to the generic DMA API
scsi: qla1280: switch to generic DMA API
scsi: qedi: fully convert to the generic DMA API
scsi: qedf: fully convert to the generic DMA API
scsi: pm8001: switch to generic DMA API
scsi: nsp32: switch to generic DMA API
scsi: mvsas: fully convert to the generic DMA API
scsi: mvumi: switch to generic DMA API
scsi: mpt3sas: switch to generic DMA API
...
Linus Torvalds [Thu, 25 Oct 2018 13:50:48 +0000 (06:50 -0700)]
Merge tag 'pci-v4.20-changes' of git://git./linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- Fix ASPM link_state teardown on removal (Lukas Wunner)
- Fix misleading _OSC ASPM message (Sinan Kaya)
- Make _OSC optional for PCI (Sinan Kaya)
- Don't initialize ASPM link state when ACPI_FADT_NO_ASPM is set
(Patrick Talbert)
- Remove x86 and arm64 node-local allocation for host bridge structures
(Punit Agrawal)
- Pay attention to device-specific _PXM node values (Jonathan Cameron)
- Support new Immediate Readiness bit (Felipe Balbi)
- Differentiate between pciehp surprise and safe removal (Lukas Wunner)
- Remove unnecessary pciehp includes (Lukas Wunner)
- Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner)
- Tolerate PCIe Slot Presence Detect being hardwired to zero to
workaround broken hardware, e.g., the Wilocity switch/wireless device
(Lukas Wunner)
- Unify pciehp controller & slot structs (Lukas Wunner)
- Constify hotplug_slot_ops (Lukas Wunner)
- Drop hotplug_slot_info (Lukas Wunner)
- Embed hotplug_slot struct into users instead of allocating it
separately (Lukas Wunner)
- Initialize PCIe port service drivers directly instead of relying on
initcall ordering (Keith Busch)
- Restore PCI config state after a slot reset (Keith Busch)
- Save/restore DPC config state along with other PCI config state
(Keith Busch)
- Reference count devices during AER handling to avoid race issue with
concurrent hot removal (Keith Busch)
- If an Upstream Port reports ERR_FATAL, don't try to read the Port's
config space because it is probably unreachable (Keith Busch)
- During error handling, use slot-specific reset instead of secondary
bus reset to avoid link up/down issues on hotplug ports (Keith Busch)
- Restore previous AER/DPC handling that does not remove and
re-enumerate devices on ERR_FATAL (Keith Busch)
- Notify all drivers that may be affected by error recovery resets
(Keith Busch)
- Always generate error recovery uevents, even if a driver doesn't have
error callbacks (Keith Busch)
- Make PCIe link active reporting detection generic (Keith Busch)
- Support D3cold in PCIe hierarchies during system sleep and runtime,
including hotplug and Thunderbolt ports (Mika Westerberg)
- Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots
are empty or occupied (Jon Derrick)
- Remove duplicated include from pci/pcie/err.c and unused variable
from cpqphp (YueHaibing)
- Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza
Pawandeep)
- Uninline PCI bus accessors for better ftracing (Keith Busch)
- Remove unused AER Root Port .error_resume method (Keith Busch)
- Use kfifo in AER instead of a local version (Keith Busch)
- Use threaded IRQ in AER bottom half (Keith Busch)
- Use managed resources in AER core (Keith Busch)
- Reuse pcie_port_find_device() for AER injection (Keith Busch)
- Abstract AER interrupt handling to disconnect error injection (Keith
Busch)
- Refactor AER injection callbacks to simplify future improvments
(Keith Busch)
- Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski)
- Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko)
- Add switch fall-through annotations (Gustavo A. R. Silva)
- Remove unused Switchtec quirk variable (Joshua Abraham)
- Fix pci.c kernel-doc warning (Randy Dunlap)
- Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig)
- Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng)
- Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid
useless dmesg errors (Logan Gunthorpe)
- Update Switchtec NTB documentation (Wesley Yung)
- Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz)
- Avoid panic when drivers enable MSI/MSI-X twice (Tonghao Zhang)
- Add PCI support for peer-to-peer DMA (Logan Gunthorpe)
- Add sysfs group for PCI peer-to-peer memory statistics (Logan
Gunthorpe)
- Add PCI peer-to-peer DMA scatterlist mapping interface (Logan
Gunthorpe)
- Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan
Gunthorpe)
- Add PCI peer-to-peer DMA driver writer's documentation (Logan
Gunthorpe)
- Add block layer flag to indicate driver support for PCI peer-to-peer
DMA (Logan Gunthorpe)
- Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P
memory (Logan Gunthorpe)
- Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan
Gunthorpe)
- Add nvme-pci support for PCI peer-to-peer memory in requests (Logan
Gunthorpe)
- Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise,
Christoph Hellwig, Logan Gunthorpe)
- Cache VF config space size to optimize enumeration of many VFs
(KarimAllah Ahmed)
- Remove unnecessary <linux/pci-ats.h> include (Bjorn Helgaas)
- Fix VMD AERSID quirk Device ID matching (Jon Derrick)
- Fix Cadence PHY handling during probe (Alan Douglas)
- Signal Cadence Endpoint interrupts via AXI region 0 instead of last
region (Alan Douglas)
- Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan
Douglas)
- Remove redundant controller tests for "device_type == pci" (Rob
Herring)
- Document R-Car E3 (R8A77990) bindings (Tho Vu)
- Add device tree support for R-Car r8a7744 (Biju Das)
- Drop unused mvebu PCIe capability code (Thomas Petazzoni)
- Add shared PCI bridge emulation code (Thomas Petazzoni)
- Convert mvebu to use shared PCI bridge emulation (Thomas Petazzoni)
- Add aardvark Root Port emulation (Thomas Petazzoni)
- Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach)
- Add initial power management for i.MX7 (Leonard Crestez)
- Add PME_Turn_Off support for i.MX7 (Leonard Crestez)
- Fix qcom runtime power management error handling (Bjorn Andersson)
- Update TI dra7xx unaligned access errata workaround for host mode as
well as endpoint mode (Vignesh R)
- Fix kirin section mismatch warning (Nathan Chancellor)
- Remove iproc PAXC slot check to allow VF support (Jitendra Bhivare)
- Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I)
- Update Keystone to use MRRS quirk for host bridge instead of open
coding (Kishon Vijay Abraham I)
- Refactor Keystone link establishment (Kishon Vijay Abraham I)
- Simplify and speed up Keystone link training (Kishon Vijay Abraham I)
- Remove unused Keystone host_init argument (Kishon Vijay Abraham I)
- Merge Keystone driver files into one (Kishon Vijay Abraham I)
- Remove redundant Keystone platform_set_drvdata() (Kishon Vijay
Abraham I)
- Rename Keystone functions for uniformity (Kishon Vijay Abraham I)
- Add Keystone device control module DT binding (Kishon Vijay Abraham
I)
- Use SYSCON API to get Keystone control module device IDs (Kishon
Vijay Abraham I)
- Clean up Keystone PHY handling (Kishon Vijay Abraham I)
- Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I)
- Clean up Keystone config space access checks (Kishon Vijay Abraham I)
- Get Keystone outbound window count from DT (Kishon Vijay Abraham I)
- Clean up Keystone outbound window configuration (Kishon Vijay Abraham
I)
- Clean up Keystone DBI setup (Kishon Vijay Abraham I)
- Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I)
- Fix Keystone IRQ status checking (Kishon Vijay Abraham I)
- Add debug messages for all Keystone errors (Kishon Vijay Abraham I)
- Clean up Keystone includes and macros (Kishon Vijay Abraham I)
- Fix Mediatek unchecked return value from devm_pci_remap_iospace()
(Gustavo A. R. Silva)
- Fix Mediatek endpoint/port matching logic (Honghui Zhang)
- Change Mediatek Root Port Class Code to PCI_CLASS_BRIDGE_PCI (Honghui
Zhang)
- Remove redundant Mediatek PM domain check (Honghui Zhang)
- Convert Mediatek to pci_host_probe() (Honghui Zhang)
- Fix Mediatek MSI enablement (Honghui Zhang)
- Add Mediatek system PM support for MT2712 and MT7622 (Honghui Zhang)
- Add Mediatek loadable module support (Honghui Zhang)
- Detach VMD resources after stopping root bus to prevent orphan
resources (Jon Derrick)
- Convert pcitest build process to that used by other tools (iio, perf,
etc) (Gustavo Pimentel)
* tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
PCI/AER: Refactor error injection fallbacks
PCI/AER: Abstract AER interrupt handling
PCI/AER: Reuse existing pcie_port_find_device() interface
PCI/AER: Use managed resource allocations
PCI: pcie: Remove redundant 'default n' from Kconfig
PCI: aardvark: Implement emulated root PCI bridge config space
PCI: mvebu: Convert to PCI emulated bridge config space
PCI: mvebu: Drop unused PCI express capability code
PCI: Introduce PCI bridge emulated config space common logic
PCI: vmd: Detach resources after stopping root bus
nvmet: Optionally use PCI P2P memory
nvmet: Introduce helper functions to allocate and free request SGLs
nvme-pci: Add support for P2P memory in requests
nvme-pci: Use PCI p2pmem subsystem to manage the CMB
IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]()
block: Add PCI P2P flag for request queue
PCI/P2PDMA: Add P2P DMA driver writer's documentation
docs-rst: Add a new directory for PCI documentation
PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers
PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset
...
Linus Torvalds [Thu, 25 Oct 2018 13:43:18 +0000 (06:43 -0700)]
Merge tag 'dmaengine-4.20-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
- Support for ColdFire mcf5441x edma controller
- Support for link list mode in sprd dma
- More users of managed dmaenginem_async_device_register API
- Cyclic mode support in owl dma driver
- DT updates for renesas drivers, dma-jz4780 updates and support for
JZ4770, JZ4740 and JZ4725B controllers
- Removal of deprecated dma_slave_config direction in dmaengine
drivers, few more users will be removed in next cycle and eventually
removed.
- Minor updates to idma64, ioat, pxa, ppc drivers
* tag 'dmaengine-4.20-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (66 commits)
dmaengine: ppc4xx: fix off-by-one build failure
dmaengine: owl: Fix warnings generated during build
dmaengine: fsl-edma: remove dma_slave_config direction usage
dmaengine: rcar-dmac: set scatter/gather max segment size
dmaengine: mmp_tdma: remove dma_slave_config direction usage
dmaengine: ep93xx_dma: remove dma_slave_config direction usage
dmaengine: k3dma: remove dma_slave_config direction usage
dmaengine: k3dma: dont use direction for memcpy
dmaengine: imx-dma: remove dma_slave_config direction usage
dmaengine: idma: remove dma_slave_config direction usage
dmaengine: hsu: remove dma_slave_config direction usage
dmaengine: dw: remove dma_slave_config direction usage
dmaengine: jz4740: remove dma_slave_config direction usage
dmaengine: coh901318: remove dma_slave_config direction usage
dmaengine: bcm2835: remove dma_slave_config direction usage
dmaengine: at_hdmac: remove dma_slave_config direction usage
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC
dmaengine: ioat: fix prototype of ioat_enumerate_channels
dmaengine: stm32-dma: check whether length is aligned on FIFO threshold
dt-bindings: dmaengine: usb-dmac: Add binding for r8a7744
...
Linus Torvalds [Thu, 25 Oct 2018 13:40:00 +0000 (06:40 -0700)]
Merge tag 'edac_for_4.20' of git://git./linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
"The EDAC tree was busier than usual this cycle as the shortlog below
shows.
Also, this pull request is carrying an ACPI DSM driver which is used
to ask the platform to supply the DIMM location of a reported hardware
error and thus simplify all the EDAC logic when trying to map the
error address to the respective DIMM.
Core EDAC updates:
- amd64_edac: AMD family 0x17, models 0x10-0x2f support (Michael Jin)
Hygon Dhyana support (Pu Wen)
- sb_edac: New maintainer + fixes (Tony Luck) Error reporting
improvements and fixes (Qiuxu Zhuo)
- ghes_edac: SMBIOS handle type 17 for DIMM locating and per-DIMM
error accounting (Fan Wu)
- altera_edac: Stratix10 support and refactoring (Thor Thayer)
Out of tree addition:
- acpi_adxl: Address Translation interface using an ACPI DSM (Tony
Luck)
- the usual amount of other misc fixes and cleanups all over"
* tag 'edac_for_4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (22 commits)
ACPI/ADXL: Add address translation interface using an ACPI DSM
EDAC, thunderx: Fix memory leak in thunderx_l2c_threaded_isr()
EDAC, skx_edac: Fix logical channel intermediate decoding
EDAC, {i7core,sb,skx}_edac: Fix uncorrected error counting
EDAC, altera: Work around int-to-pointer-cast warnings
EDAC, amd64: Add Hygon Dhyana support
EDAC: Raise the maximum number of memory controllers
arm64: dts: stratix10: Add peripheral EDAC nodes
EDAC, altera: Add Stratix10 peripheral support
EDAC, altera: Merge Stratix10 into the Arria10 SDRAM probe routine
arm64: dts: stratix10: Add SDRAM node
EDAC, altera: Combine Stratix10 and Arria10 probe functions
arm64: dts: stratix10: Additions to EDAC System Manager
EDAC, i7core: Remove set but not used variable pvt
EDAC, ghes: Use CPER module handles to locate DIMMs
EDAC: Correct DIMM capacity unit symbol
EDAC, sb_edac: Fix signedness bugs in *_get_ha() functions
EDAC, sb_edac: Fix reporting for patrol scrubber errors
EDAC, sb_edac: Return early on ADDRV bit and address type test
MAINTAINERS: Update maintainer for drivers/edac/sb_edac.c
...
Linus Torvalds [Thu, 25 Oct 2018 13:31:56 +0000 (06:31 -0700)]
Merge tag 'libnvdimm-for-4.20' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
- Improve the efficiency and performance of reading nvdimm-namespace
labels. Reduce the amount of label data read at driver load time by a
few orders of magnitude. Reduce heavyweight call-outs to
platform-firmware routines.
- Handle media errors located in the 'struct page' array stored on a
persistent memory namespace. Let the kernel clear these errors rather
than an awkward userspace workaround.
- Fix Address Range Scrub (ARS) completion tracking. Correct occasions
where the kernel indicates completion of ARS before submission.
- Fix asynchronous device registration reference counting.
- Add support for reporting an nvdimm dirty-shutdown-count via sysfs.
- Fix various small libnvdimm core and uapi issues.
* tag 'libnvdimm-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (21 commits)
acpi, nfit: Further restrict userspace ARS start requests
acpi, nfit: Fix Address Range Scrub completion tracking
UAPI: ndctl: Remove use of PAGE_SIZE
UAPI: ndctl: Fix g++-unsupported initialisation in headers
tools/testing/nvdimm: Populate dirty shutdown data
acpi, nfit: Collect shutdown status
acpi, nfit: Introduce nfit_mem flags
libnvdimm, label: Fix sparse warning
nvdimm: Use namespace index data to reduce number of label reads needed
nvdimm: Split label init out from the logic for getting config data
nvdimm: Remove empty if statement
nvdimm: Clarify comment in sizeof_namespace_index
nvdimm: Sanity check labeloff
libnvdimm, dimm: Maximize label transfer size
libnvdimm, pmem: Fix badblocks population for 'raw' namespaces
libnvdimm, namespace: Drop the repeat assignment for variable dev->parent
libnvdimm, region: Fail badblocks listing for inactive regions
libnvdimm, pfn: during init, clear errors in the metadata area
libnvdimm: Set device node in nd_device_register
libnvdimm: Hold reference on parent while scheduling async init
...
Linus Torvalds [Thu, 25 Oct 2018 13:28:08 +0000 (06:28 -0700)]
Merge tag 'for-v4.20' of git://git./linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
- Add Spreadtrum SC2731 charger driver
- bq25890-charger: Add BQ25896 support
- bq27xxx-battery: Add support for BQ27411
- qcom-pon: Add pms405 pon support
- cros-charger: add support for dedicated port
- misc fixes
* tag 'for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (28 commits)
power: max8925: mark expected switch fall-through
power: supply: fix spelling mistake "Gauage" -> "Gauge"
power: reset: qcom-pon: Add pms405 pon support
power: supply: bq27xxx: Add support for BQ27411
power: supply: Add Spreadtrum SC2731 charger support
dt-bindings: power: Add Spreadtrum SC2731 charger documentation
power: supply: twl4030_charger: disable eoc interrupt on linear charge
power: supply: twl4030_charger: fix charging current out-of-bounds
power: supply: bq25890_charger: fix semicolon.cocci warnings
power: supply: max8998-charger: Fix platform data retrieval
power: supply: cros: add support for dedicated port
mfd: cros: add charger port count command definition
power: reset: at91-poweroff: do not procede if at91_shdwc is allocated
power: reset: at91-poweroff: rename at91_shdwc_base member of struct shdwc
power: reset: at91-poweroff: make sclk part of struct shdwc
power: reset: at91-poweroff: make mpddrc_base part of struct shdwc
power: reset: at91-poweroff: use only one poweroff function
power: reset: at91-poweroff: switch to slow clock before shutdown
power: reset: convert to SPDX identifiers
power: supply: ab8500_fg: silence uninitialized variable warnings
...
Linus Torvalds [Thu, 25 Oct 2018 13:23:07 +0000 (06:23 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina:
- rumble support for Xbox One S, from Andrey Smirnov
- high-resolution support for Logitech mice, from Harry Cutts
- support for recent devices requiring the HID parse to be able to cope
with tag report sizes > 256
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (35 commits)
HID: usbhid: Add quirk for Redragon/Dragonrise Seymur 2
HID: wacom: Work around HID descriptor bug in DTK-2451 and DTH-2452
HID: google: add dependency on Cros EC for Hammer
HID: elan: fix spelling mistake "registred" -> "registered"
HID: google: drop superfluous const before SIMPLE_DEV_PM_OPS()
HID: google: add support tablet mode switch for Whiskers
mfd: cros: add "base attached" MKBP switch definition
Input: reserve 2 events code because of HID
HID: magicmouse: add support for Apple Magic Trackpad 2
HID: i2c-hid: override HID descriptors for certain devices
HID: hid-bigbenff: driver for BigBen Interactive PS3OFMINIPAD gamepad
HID: logitech: fix a used uninitialized GCC warning
HID: intel-ish-hid: using list_head for ipc write queue
HID: intel-ish-hid: use resource-managed api
HID: intel_ish-hid: Enhance API to get ring buffer sizes
HID: intel-ish-hid: use helper function to search client id
HID: intel-ish-hid: ishtp: add helper function for client search
HID: intel-ish-hid: use helper function to access client buffer
HID: intel-ish-hid: ishtp: add helper functions for client buffer operation
HID: intel-ish-hid: use helper function for private driver data set/get
...
Linus Torvalds [Thu, 25 Oct 2018 13:21:28 +0000 (06:21 -0700)]
Merge tag 'backlight-next-4.20' of git://git./linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"Old Drivers
- Remove driver for S6E63M0
- Remove driver for LD9040
Fix-ups
- Trivial (email address update); adp*_bl
- Use 'atomic' PWM API; pwm_bl
Bug Fixes
- Remove pointless boolen '&ptr' check; lm3639_bl"
* tag 'backlight-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: Remove ld9040 driver
backlight: Remove s6e63m0 driver
backlight: lm3639: Unconditionally call led_classdev_unregister
backlight: pwm_bl: Switch to using "atomic" PWM API
backlight: Update MODULE AUTHOR email address
Linus Torvalds [Thu, 25 Oct 2018 13:19:15 +0000 (06:19 -0700)]
Merge tag 'mfd-next-4.20' of git://git./linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers
- Add support for USART SPI to AT91*
New Functionality
- Add support for Audio CODECs to motorola-cpcap
Fix-ups
- DT documentation fix-ups; atmel-usart
- Staticise functions/structs; spi-at91-usart, arizona-core
- Constify; ti-lmu
- Fix memory leaks; menelaus
- Change device 'wake-up' status; ti_am335x_tscadc, max8997
- Power Management (suspend/resume) semantic changes; ti_am335x_adc, cros_ec, max8997
- SPDX churn; sec-core (+ headers), max* (+ headers), intel* (+ headers),
- Trivial (whitespace, email addresses, alphabetisise); Kconfig, adp5520, intel_soc_pmic_*
- Build as module; sec-irq
- Use new %pOFn printk format for device_node.name; max77620
- Remove unused code; madera
- Use generic MACROs; intel_msic, intel_soc_pmic_crc
- Move to GPIOD; ti-lmu
- Use managed resources; ti-lmu
Bug Fixes
- Add missing headers; at91-usart
- Prevent device from entering low-power mode; arizona-core
- Poll for BOOT_DONE to avoid still-booting NACK; madera-core
- Prevent ADC read from shutting down device; mc13xxx-core"
* tag 'mfd-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (45 commits)
mfd: cros_ec: Avoid unneeded internal declaration warning
mfd: ti-lmu: Use of_device_get_match_data() helper
mfd: ti-lmu: Use managed resource for everything
mfd: ti-lmu: Switch to GPIOD
mfd: ti-lmu: constify mfd_cell tables
mfd: max8997: Disable interrupt handling for suspend/resume cycle
mfd: max8997: Enale irq-wakeup unconditionally
mfd: arizona: Make array mclk_name static, shrinks object size
MAINTAINERS: Add myself as designated reviewer of Intel MFD PMIC
mfd: Convert Intel PMIC drivers to use SPDX identifier 1;5201;0c Reduce size of duplicated comments by switching to use SPDX identifier.
mfd: Sort headers alphabetically for Intel PMIC drivers
mfd: intel_soc_pmic_bxtwc: Chain power button IRQs as well
mfd: intel_soc_pmic_crc: Use REGMAP_IRQ_REG() macro
mfd: intel_soc_pmic_crc: Use DEFINE_RES_IRQ_NAMED() macro
mfd: intel_msic: Use DEFINE_RES_IRQ() macro
mfd: motorola-cpcap: Add audio-codec support
mfd: mc13xxx-core: Fix PMIC shutdown when reading ADC values
mfd: madera: Remove unused forward reference
mfd: max77620: Convert to using %pOFn instead of device_node.name
mfd: madera: Don't use regmap_read_poll_timeout to poll for BOOT_DONE
...
Linus Torvalds [Wed, 24 Oct 2018 17:01:11 +0000 (18:01 +0100)]
Merge tag 'docs-4.20' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"This is a fairly typical cycle for documentation. There's some welcome
readability improvements for the formatted output, some LICENSES
updates including the addition of the ISC license, the removal of the
unloved and unmaintained 00-INDEX files, the deprecated APIs document
from Kees, more MM docs from Mike Rapoport, and the usual pile of typo
fixes and corrections"
* tag 'docs-4.20' of git://git.lwn.net/linux: (41 commits)
docs: Fix typos in histogram.rst
docs: Introduce deprecated APIs list
kernel-doc: fix declaration type determination
doc: fix a typo in adding-syscalls.rst
docs/admin-guide: memory-hotplug: remove table of contents
doc: printk-formats: Remove bogus kobject references for device nodes
Documentation: preempt-locking: Use better example
dm flakey: Document "error_writes" feature
docs/completion.txt: Fix a couple of punctuation nits
LICENSES: Add ISC license text
LICENSES: Add note to CDDL-1.0 license that it should not be used
docs/core-api: memory-hotplug: add some details about locking internals
docs/core-api: rename memory-hotplug-notifier to memory-hotplug
docs: improve readability for people with poorer eyesight
yama: clarify ptrace_scope=2 in Yama documentation
docs/vm: split memory hotplug notifier description to Documentation/core-api
docs: move memory hotplug description into admin-guide/mm
doc: Fix acronym "FEKEK" in ecryptfs
docs: fix some broken documentation references
iommu: Fix passthrough option documentation
...
Linus Torvalds [Wed, 24 Oct 2018 16:42:24 +0000 (17:42 +0100)]
Merge tag 'ext4_for_linus' of git://git./linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
- further restructure ext4 documentation
- fix up ext4's delayed allocation for bigalloc file systems
- fix up some syzbot-detected races in EXT4_IOC_MOVE_EXT,
EXT4_IOC_SWAP_BOOT, and ext4_remount
- ... and a few other miscellaneous bugs and optimizations.
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (21 commits)
ext4: fix use-after-free race in ext4_remount()'s error path
ext4: cache NULL when both default_acl and acl are NULL
docs: promote the ext4 data structures book to top level
docs: move ext4 administrative docs to admin-guide/
jbd2: fix use after free in jbd2_log_do_checkpoint()
ext4: propagate error from dquot_initialize() in EXT4_IOC_FSSETXATTR
ext4: fix setattr project check in fssetxattr ioctl
docs: make ext4 readme tables readable
docs: fix ext4 documentation table formatting problems
docs: generate a separate ext4 pdf file from the documentation
ext4: convert fault handler to use vm_fault_t type
ext4: initialize retries variable in ext4_da_write_inline_data_begin()
ext4: fix EXT4_IOC_SWAP_BOOT
ext4: fix build error when DX_DEBUG is defined
ext4: fix argument checking in EXT4_IOC_MOVE_EXT
ext4: fix reserved cluster accounting at page invalidation time
ext4: adjust reserved cluster count when removing extents
ext4: reduce reserved cluster count by number of allocated clusters
ext4: fix reserved cluster accounting at delayed write time
ext4: add new pending reservation mechanism
...
Linus Torvalds [Wed, 24 Oct 2018 16:39:36 +0000 (17:39 +0100)]
Merge tag 'f2fs-for-4.20-rc1' of git://git./linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, we've added 1) superblock checksum feature, 2)
implemented new mount option which we can disable/enable checkpoint to
provide atomic updates of entire filesystem, 3) refactored quota
operations to enhance its consistency along with checkpoint, 4) fixed
subtle IO hang conditions and roll-forward recovery flow to resurrect
any fsync'ed inode metadata.
Enhancements:
- add checksum to keep superblock contents more safe
- add checkpoint=disable/enable to support A/B update of entire filesystem
- use plug for readahead IO in readdir
- add more IO counts to avoid block layer hacks
Bug fixes:
- prevent data corruption issue for hardware encryption
- fix IO hang issues when GC is heavily triggered
- add missing up_read in __write_node_page
- recover inode metadata during roll-forward recovery flow
- fix null pointer dereference issue in wrongly configured discard map
There are some more sanity checks and minor bug fixes as well"
* tag 'f2fs-for-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (62 commits)
f2fs: fix to keep project quota consistent
f2fs: guarantee journalled quota data by checkpoint
f2fs: cleanup dirty pages if recover failed
f2fs: fix data corruption issue with hardware encryption
f2fs: fix to recover inode->i_flags of inode block during POR
f2fs: spread f2fs_set_inode_flags()
f2fs: fix to spread clear_cold_data()
Revert "f2fs: fix to clear PG_checked flag in set_page_dirty()"
f2fs: account read IOs and use IO counts for is_idle
f2fs: fix to account IO correctly for cgroup writeback
f2fs: fix to account IO correctly
f2fs: remove request_list check in is_idle()
f2fs: allow to mount, if quota is failed
f2fs: update REQ_TIME in f2fs_cross_rename()
f2fs: do not update REQ_TIME in case of error conditions
f2fs: remove unneeded disable_nat_bits()
f2fs: remove unused sbi->trigger_ssr_threshold
f2fs: shrink sbi->sb_lock coverage in set_file_temperature()
f2fs: use rb_*_cached friends
f2fs: fix to recover cold bit of inode block during POR
...
Linus Torvalds [Wed, 24 Oct 2018 16:36:12 +0000 (17:36 +0100)]
Merge tag 'xfs-4.20-merge-1' of git://git./fs/xfs/xfs-linux
Pul xfs updates from Dave Chinner:
"There's not a huge amount of change in this cycle - Darrick has been
out of action for a couple of months (hence me sending the last few
pull requests), so we decided a quiet cycle mainly focussed on bug
fixes was a good idea. Darrick will take the helm again at the end of
this merge window.
FYI, I may be sending another update later in the cycle - there's a
pending rework of the clone/dedupe_file_range code that fixes numerous
bugs that is spread amongst the VFS, XFS and ocfs2 code. It has been
reviewed and tested, Al and I just need to work out the details of the
merge, so it may come from him rather than me.
Summary:
- only support filesystems with unwritten extents
- add definition for statfs XFS magic number
- remove unused parameters around reflink code
- more debug for dangling delalloc extents
- cancel COW extents on extent swap targets
- fix quota stats output and clean up the code
- refactor some of the attribute code in preparation for parent
pointers
- fix several buffer handling bugs"
* tag 'xfs-4.20-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (21 commits)
xfs: cancel COW blocks before swapext
xfs: clear ail delwri queued bufs on unmount of shutdown fs
xfs: use offsetof() in place of offset macros for __xfsstats
xfs: Fix xqmstats offsets in /proc/fs/xfs/xqmstat
xfs: fix use-after-free race in xfs_buf_rele
xfs: Add attibute remove and helper functions
xfs: Add attibute set and helper functions
xfs: Add helper function xfs_attr_try_sf_addname
xfs: Move fs/xfs/xfs_attr.h to fs/xfs/libxfs/xfs_attr.h
xfs: issue log message on user force shutdown
xfs: fix buffer state management in xrep_findroot_block
xfs: always assign buffer verifiers when one is provided
xfs: xrep_findroot_block should reject root blocks with siblings
xfs: add a define for statfs magic to uapi
xfs: print dangling delalloc extents
xfs: fix fork selection in xfs_find_trim_cow_extent
xfs: remove the unused trimmed argument from xfs_reflink_trim_around_shared
xfs: remove the unused shared argument to xfs_reflink_reserve_cow
xfs: handle zeroing in xfs_file_iomap_begin_delay
xfs: remove suport for filesystems without unwritten extent flag
...
Linus Torvalds [Wed, 24 Oct 2018 16:30:39 +0000 (17:30 +0100)]
Merge tag 'gfs2-4.20.fixes' of git://git./linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Bob Peterson:
"We've got 18 patches for this merge window, none of which are very
major:
- clean up the gfs2 block allocator to prepare for future performance
enhancements (Andreas Gruenbacher)
- fix a use-after-free problem (Andy Price)
- patches that fix gfs2's broken rgrplvb mount option (me)
- cleanup patches and error message improvements (me)
- enable getlabel support (Steve Whitehouse and Abhi Das)
- flush the glock delete workqueue at exit (Tim Smith)"
* tag 'gfs2-4.20.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Fix minor typo: couln't versus couldn't.
gfs2: write revokes should traverse sd_ail1_list in reverse
gfs2: Pass resource group to rgblk_free
gfs2: Remove unnecessary gfs2_rlist_alloc parameter
gfs2: Fix marking bitmaps non-full
gfs2: Fix some minor typos
gfs2: Rename bitmap.bi_{len => bytes}
gfs2: Remove unused RGRP_RSRV_MINBYTES definition
gfs2: Move rs_{sizehint, rgd_gh} fields into the inode
gfs2: Clean up out-of-bounds check in gfs2_rbm_from_block
gfs2: Always check the result of gfs2_rbm_from_block
gfs2: getlabel support
GFS2: Flush the GFS2 delete workqueue before stopping the kernel threads
gfs2: Don't leave s_fs_info pointing to freed memory in init_sbd
gfs2: Use fs_* functions instead of pr_* function where we can
gfs2: slow the deluge of io error messages
gfs2: Don't set GFS2_RDF_UPTODATE when the lvb is updated
gfs2: improve debug information when lvb mismatches are found
Linus Torvalds [Wed, 24 Oct 2018 16:28:03 +0000 (17:28 +0100)]
Merge tag 'for-linus-4.20-ofs1' of git://git./linux/kernel/git/hubcap/linux
Pull orangefs updates from Mike Marshall:
"Fixes and a cleanup.
Fixes:
- fix superfluous service_operation return code check in
orangefs_lookup
- fix some error code paths that missed kmem_cache_free
- don't let orangefs_iget return NULL
- don't let orangefs_new_inode return NULL
- cache NULL when both default_acl and acl are NULL
Cleanup:
- rate limit the client not running info message"
* tag 'for-linus-4.20-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: no need to check for service_operation returns > 0
orangefs: some error code paths missed kmem_cache_free
orangefs: don't let orangefs_iget return NULL.
orangefs: don't let orangefs_new_inode return NULL
orangefs: rate limit the client not running info message
orangefs: cache NULL when both default_acl and acl are NULL
Linus Torvalds [Wed, 24 Oct 2018 16:24:04 +0000 (17:24 +0100)]
Merge branch 'fixes' of git://git./linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro.
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
gfs2_meta: ->mount() can get NULL dev_name
ecryptfs_rename(): verify that lower dentries are still OK after lock_rename()
cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)
Linus Torvalds [Wed, 24 Oct 2018 16:22:16 +0000 (17:22 +0100)]
Merge tag 'jfs-for-4.20' of git://github.com/kleikamp/linux-shaggy
Pull jfs updates from David Kleikamp:
"Just a few small fixes"
* tag 'jfs-for-4.20' of git://github.com/kleikamp/linux-shaggy:
jfs: remove redundant dquot_initialize() in jfs_evict_inode()
jfs: remove quota option from ignore list
jfs: cache NULL when both default_acl and acl are NULL
Linus Torvalds [Wed, 24 Oct 2018 16:15:26 +0000 (17:15 +0100)]
Merge tag 'for-4.20-part1-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"This is the first batch with fixes and some nice performance
improvements.
Preliminary results show eg. more files/sec in fsmark, better perf on
multi-threaded workloads (filebench, dbench), fewer context switches
and overall better memory allocation characteristics (multiple
benchmarks).
Apart from general performance, there's an improvement for qgroups +
balance workload that's been troubling our users.
Note for stable: there are 20+ patches tagged for stable, out of 90.
Not all of them apply cleanly on all stable versions but the conflicts
are mostly due to simple cleanups and resolving should be obvious. The
fixes are otherwise independent.
Performance improvements:
- transition between blocking and spinning modes of path is gone,
which originally resulted to more unnecessary wakeups and updates
to the path locks, the effects are measurable and improve latency
and scalability
- qgroups: first batch of changes that should speedup balancing with
qgroups on, skip quota accounting on unchanged subtrees, overall
gain is about 30+% in runtime
- use rb-tree with cached first node for several structures, small
improvement to avoid pointer chasing
Fixes:
- trim
- fix: some blockgroups could have been missed if their logical
address was past the total filesystem size (ie. after a lot of
balancing)
- better error reporting, after processing blockgroups and whole
device
- fix: continue trimming block groups after an error is
encountered
- check for trim support of the device earlier and avoid some
unnecessary work
- less interaction with transaction commit that improves latency
on slower storage (eg. image files over NFS)
- fsync
- fix warning when replaying log after fsync of a O_TMPFILE
- fix wrong dentries after fsync of file that got its parent
replaced
- qgroups: fix rescan that might misc some dirty groups
- don't clean dirty pages during buffered writes, this could lead to
lost updates in some corner cases
- some block groups could have been delayed in creation, if the
allocation triggered another one
- error handling improvements
Cleanups:
- removed unused struct members and variables
- function return type cleanups
- delayed refs code refactoring
- protect against deadlock that could be caused by crafted image that
tries to allocate from a tree that's locked already"
* tag 'for-4.20-part1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (93 commits)
btrfs: switch return_bigger to bool in find_ref_head
btrfs: remove fs_info from btrfs_should_throttle_delayed_refs
btrfs: remove fs_info from btrfs_check_space_for_delayed_refs
btrfs: delayed-ref: pass delayed_refs directly to btrfs_delayed_ref_lock
btrfs: delayed-ref: pass delayed_refs directly to btrfs_select_ref_head
btrfs: qgroup: move the qgroup->members check out from (!qgroup)'s else branch
btrfs: relocation: Remove redundant tree level check
btrfs: relocation: Cleanup while loop using rbtree_postorder_for_each_entry_safe
btrfs: qgroup: Avoid calling qgroup functions if qgroup is not enabled
Btrfs: fix wrong dentries after fsync of file that got its parent replaced
Btrfs: fix warning when replaying log after fsync of a tmpfile
btrfs: drop min_size from evict_refill_and_join
btrfs: assert on non-empty delayed iputs
btrfs: make sure we create all new block groups
btrfs: reset max_extent_size on clear in a bitmap
btrfs: protect space cache inode alloc with GFP_NOFS
btrfs: release metadata before running delayed refs
Btrfs: kill btrfs_clear_path_blocking
btrfs: dev-replace: remove pointless assert in write unlock
btrfs: dev-replace: move replace members out of fs_info
...
Linus Torvalds [Wed, 24 Oct 2018 13:43:41 +0000 (14:43 +0100)]
Merge branch 'work.tty-ioctl' of git://git./linux/kernel/git/viro/vfs
Pull tty ioctl updates from Al Viro:
"This is the compat_ioctl work related to tty ioctls.
Quite a bit of dead code taken out, all tty-related stuff gone from
fs/compat_ioctl.c. A bunch of compat bugs fixed - some still remain,
but all more or less generic tty-related ioctls should be covered
(remaining issues are in things like driver-private ioctls in a pcmcia
serial card driver not getting properly handled in 32bit processes on
64bit host, etc)"
* 'work.tty-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (53 commits)
kill TIOCSERGSTRUCT
change semantics of ldisc ->compat_ioctl()
kill TIOCSER[SG]WILD
synclink_gt(): fix compat_ioctl()
pty: fix compat ioctls
compat_ioctl - kill keyboard ioctl handling
gigaset: add ->compat_ioctl()
vt_compat_ioctl(): clean up, use compat_ptr() properly
gigaset: don't try to printk userland buffer contents
dgnc: don't bother with (empty) stub for TCXONC
dgnc: leave TIOC[GS]SOFTCAR to ldisc
remove fallback to drivers for TIOCGICOUNT
dgnc: break-related ioctls won't reach ->ioctl()
kill the rest of tty COMPAT_IOCTL() entries
dgnc: TIOCM... won't reach ->ioctl()
isdn_tty: TCSBRK{,P} won't reach ->ioctl()
kill capinc_tty_ioctl()
take compat TIOC[SG]SERIAL treatment into tty_compat_ioctl()
synclink: reduce pointless checks in ->ioctl()
complete ->[sg]et_serial() switchover
...
Linus Torvalds [Wed, 24 Oct 2018 13:42:02 +0000 (14:42 +0100)]
Merge tag 'pstore-v4.20-rc1' of git://git./linux/kernel/git/kees/linux
Pull pstore updates from Kees Cook:
"pstore improvements:
- refactor init to happen as early as possible again (Joel Fernandes)
- improve resource reservation names"
* tag 'pstore-v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
pstore/ram: Clarify resource reservation labels
pstore: Refactor compression initialization
pstore: Allocate compression during late_initcall()
pstore: Centralize init/exit routines
Linus Torvalds [Wed, 24 Oct 2018 10:49:35 +0000 (11:49 +0100)]
Merge branch 'next-general' of git://git./linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
"In this patchset, there are a couple of minor updates, as well as some
reworking of the LSM initialization code from Kees Cook (these prepare
the way for ordered stackable LSMs, but are a valuable cleanup on
their own)"
* 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
LSM: Don't ignore initialization failures
LSM: Provide init debugging infrastructure
LSM: Record LSM name in struct lsm_info
LSM: Convert security_initcall() into DEFINE_LSM()
vmlinux.lds.h: Move LSM_TABLE into INIT_DATA
LSM: Convert from initcall to struct lsm_info
LSM: Remove initcall tracing
LSM: Rename .security_initcall section to .lsm_info
vmlinux.lds.h: Avoid copy/paste of security_init section
LSM: Correctly announce start of LSM initialization
security: fix LSM description location
keys: Fix the use of the C++ keyword "private" in uapi/linux/keyctl.h
seccomp: remove unnecessary unlikely()
security: tomoyo: Fix obsolete function
security/capabilities: remove check for -EINVAL
Linus Torvalds [Wed, 24 Oct 2018 10:47:32 +0000 (11:47 +0100)]
Merge tag 'selinux-pr-
20181022' of git://git./linux/kernel/git/pcmoore/selinux
Pull SELinux updates from Paul Moore:
"Three SELinux patches for v4.20, all fall under the bug-fix or
behave-better category, which is good. All three have pretty good
descriptions too, which is even better"
* tag 'selinux-pr-
20181022' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: Add __GFP_NOWARN to allocation at str_read()
selinux: refactor mls_context_to_sid() and make it stricter
selinux: fix mounting of cgroup2 under older policies
Linus Torvalds [Wed, 24 Oct 2018 10:22:39 +0000 (11:22 +0100)]
Merge branch 'siginfo-linus' of git://git./linux/kernel/git/ebiederm/user-namespace
Pull siginfo updates from Eric Biederman:
"I have been slowly sorting out siginfo and this is the culmination of
that work.
The primary result is in several ways the signal infrastructure has
been made less error prone. The code has been updated so that manually
specifying SEND_SIG_FORCED is never necessary. The conversion to the
new siginfo sending functions is now complete, which makes it
difficult to send a signal without filling in the proper siginfo
fields.
At the tail end of the patchset comes the optimization of decreasing
the size of struct siginfo in the kernel from 128 bytes to about 48
bytes on 64bit. The fundamental observation that enables this is by
definition none of the known ways to use struct siginfo uses the extra
bytes.
This comes at the cost of a small user space observable difference.
For the rare case of siginfo being injected into the kernel only what
can be copied into kernel_siginfo is delivered to the destination, the
rest of the bytes are set to 0. For cases where the signal and the
si_code are known this is safe, because we know those bytes are not
used. For cases where the signal and si_code combination is unknown
the bits that won't fit into struct kernel_siginfo are tested to
verify they are zero, and the send fails if they are not.
I made an extensive search through userspace code and I could not find
anything that would break because of the above change. If it turns out
I did break something it will take just the revert of a single change
to restore kernel_siginfo to the same size as userspace siginfo.
Testing did reveal dependencies on preferring the signo passed to
sigqueueinfo over si->signo, so bit the bullet and added the
complexity necessary to handle that case.
Testing also revealed bad things can happen if a negative signal
number is passed into the system calls. Something no sane application
will do but something a malicious program or a fuzzer might do. So I
have fixed the code that performs the bounds checks to ensure negative
signal numbers are handled"
* 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (80 commits)
signal: Guard against negative signal numbers in copy_siginfo_from_user32
signal: Guard against negative signal numbers in copy_siginfo_from_user
signal: In sigqueueinfo prefer sig not si_signo
signal: Use a smaller struct siginfo in the kernel
signal: Distinguish between kernel_siginfo and siginfo
signal: Introduce copy_siginfo_from_user and use it's return value
signal: Remove the need for __ARCH_SI_PREABLE_SIZE and SI_PAD_SIZE
signal: Fail sigqueueinfo if si_signo != sig
signal/sparc: Move EMT_TAGOVF into the generic siginfo.h
signal/unicore32: Use force_sig_fault where appropriate
signal/unicore32: Generate siginfo in ucs32_notify_die
signal/unicore32: Use send_sig_fault where appropriate
signal/arc: Use force_sig_fault where appropriate
signal/arc: Push siginfo generation into unhandled_exception
signal/ia64: Use force_sig_fault where appropriate
signal/ia64: Use the force_sig(SIGSEGV,...) in ia64_rt_sigreturn
signal/ia64: Use the generic force_sigsegv in setup_frame
signal/arm/kvm: Use send_sig_mceerr
signal/arm: Use send_sig_fault where appropriate
signal/arm: Use force_sig_fault where appropriate
...
Vinod Koul [Wed, 24 Oct 2018 08:16:33 +0000 (09:16 +0100)]
Merge branch 'topic/stm' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:16:27 +0000 (09:16 +0100)]
Merge branch 'topic/sprd' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:16:22 +0000 (09:16 +0100)]
Merge branch 'topic/renesas' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:16:18 +0000 (09:16 +0100)]
Merge branch 'topic/owl' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:16:14 +0000 (09:16 +0100)]
Merge branch 'topic/of' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:16:08 +0000 (09:16 +0100)]
Merge branch 'topic/mv' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:16:04 +0000 (09:16 +0100)]
Merge branch 'topic/jz' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:15:59 +0000 (09:15 +0100)]
Merge branch 'topic/intel' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:15:52 +0000 (09:15 +0100)]
Merge branch 'topic/fsl' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:15:48 +0000 (09:15 +0100)]
Merge branch 'topic/dw' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:15:43 +0000 (09:15 +0100)]
Merge branch 'topic/dmam' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:15:37 +0000 (09:15 +0100)]
Merge branch 'topic/dirn_remove' into for-linus
Vinod Koul [Wed, 24 Oct 2018 08:15:32 +0000 (09:15 +0100)]
Merge branch 'topic/at' into for-linus
Linus Torvalds [Wed, 24 Oct 2018 07:11:35 +0000 (08:11 +0100)]
net/kconfig: Make QCOM_QMI_HELPERS available when COMPILE_TEST
The networking merge brought in the experimental support for the
Qualcomm ath10k system NOC, which selects QCOM_QMI_HELPERS as a
dependency.
But the ATH10K_SNOC option (which selects QCOM_QMI_HELPERS) depends on
ARCH_QCOM || COMPILE_TEST in order to get wider build testing than just
the unusual QCOM architecture build, while the QCOM_QMI_HELPERS option
doesn't have that COMPILE_TEST option and is limited to only ARCH_QCOM.
As a result, a "make allmodconfig" complains
WARNING: unmet direct dependencies detected for QCOM_QMI_HELPERS
Depends on [n]: ARCH_QCOM && NET [=y]
Selected by [m]:
- ATH10K_SNOC [=m] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_ATH [=y] && ATH10K [=m] && (ARCH_QCOM || COMPILE_TEST [=y])
Fix the config-time warning by making QCOM_QMI_HELPERS available when
COMPILE_TEST, since the result seems to build fine.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Govind Singh <govinds@codeaurora.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 24 Oct 2018 05:47:44 +0000 (06:47 +0100)]
Merge git://git./linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) Add VF IPSEC offload support in ixgbe, from Shannon Nelson.
2) Add zero-copy AF_XDP support to i40e, from Björn Töpel.
3) All in-tree drivers are converted to {g,s}et_link_ksettings() so we
can get rid of the {g,s}et_settings ethtool callbacks, from Michal
Kubecek.
4) Add software timestamping to veth driver, from Michael Walle.
5) More work to make packet classifiers and actions lockless, from Vlad
Buslov.
6) Support sticky FDB entries in bridge, from Nikolay Aleksandrov.
7) Add ipv6 version of IP_MULTICAST_ALL sockopt, from Andre Naujoks.
8) Support batching of XDP buffers in vhost_net, from Jason Wang.
9) Add flow dissector BPF hook, from Petar Penkov.
10) i40e vf --> generic iavf conversion, from Jesse Brandeburg.
11) Add NLA_REJECT netlink attribute policy type, to signal when users
provide attributes in situations which don't make sense. From
Johannes Berg.
12) Switch TCP and fair-queue scheduler over to earliest departure time
model. From Eric Dumazet.
13) Improve guest receive performance by doing rx busy polling in tx
path of vhost networking driver, from Tonghao Zhang.
14) Add per-cgroup local storage to bpf
15) Add reference tracking to BPF, from Joe Stringer. The verifier can
now make sure that references taken to objects are properly released
by the program.
16) Support in-place encryption in TLS, from Vakul Garg.
17) Add new taprio packet scheduler, from Vinicius Costa Gomes.
18) Lots of selftests additions, too numerous to mention one by one here
but all of which are very much appreciated.
19) Support offloading of eBPF programs containing BPF to BPF calls in
nfp driver, frm Quentin Monnet.
20) Move dpaa2_ptp driver out of staging, from Yangbo Lu.
21) Lots of u32 classifier cleanups and simplifications, from Al Viro.
22) Add new strict versions of netlink message parsers, and enable them
for some situations. From David Ahern.
23) Evict neighbour entries on carrier down, also from David Ahern.
24) Support BPF sk_msg verdict programs with kTLS, from Daniel Borkmann
and John Fastabend.
25) Add support for filtering route dumps, from David Ahern.
26) New igc Intel driver for 2.5G parts, from Sasha Neftin et al.
27) Allow vxlan enslavement to bridges in mlxsw driver, from Ido
Schimmel.
28) Add queue and stack map types to eBPF, from Mauricio Vasquez B.
29) Add back byte-queue-limit support to r8169, with all the bug fixes
in other areas of the driver it works now! From Florian Westphal and
Heiner Kallweit.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2147 commits)
tcp: add tcp_reset_xmit_timer() helper
qed: Fix static checker warning
Revert "be2net: remove desc field from be_eq_obj"
Revert "net: simplify sock_poll_wait"
net: socionext: Reset tx queue in ndo_stop
net: socionext: Add dummy PHY register read in phy_write()
net: socionext: Stop PHY before resetting netsec
net: stmmac: Set OWN bit for jumbo frames
arm64: dts: stratix10: Support Ethernet Jumbo frame
tls: Add maintainers
net: ethernet: ti: cpsw: unsync mcast entries while switch promisc mode
octeontx2-af: Support for NIXLF's UCAST/PROMISC/ALLMULTI modes
octeontx2-af: Support for setting MAC address
octeontx2-af: Support for changing RSS algorithm
octeontx2-af: NIX Rx flowkey configuration for RSS
octeontx2-af: Install ucast and bcast pkt forwarding rules
octeontx2-af: Add LMAC channel info to NIXLF_ALLOC response
octeontx2-af: NPC MCAM and LDATA extract minimal configuration
octeontx2-af: Enable packet length and csum validation
octeontx2-af: Support for VTAG strip and capture
...
Linus Torvalds [Wed, 24 Oct 2018 05:42:00 +0000 (06:42 +0100)]
Merge git://git./linux/kernel/git/davem/sparc
Pull sparc updates from David Miller:
"Mostly VDSO cleanups and optimizations"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Several small VDSO vclock_gettime.c improvements.
sparc: Validate VDSO for undefined symbols.
sparc: Really use linker with LDFLAGS.
sparc: Improve VDSO CFLAGS.
sparc: Set DISABLE_BRANCH_PROFILING in VDSO CFLAGS.
sparc: Don't bother masking out TICK_PRIV_BIT in VDSO code.
sparc: Inline VDSO gettime code aggressively.
sparc: Improve VDSO instruction patching.
sparc: Fix parport build warnings.
Eric Dumazet [Tue, 23 Oct 2018 18:54:16 +0000 (11:54 -0700)]
tcp: add tcp_reset_xmit_timer() helper
With EDT model, SRTT no longer is inflated by pacing delays.
This means that RTO and some other xmit timers might be setup
incorrectly. This is particularly visible with either :
- Very small enforced pacing rates (SO_MAX_PACING_RATE)
- Reduced rto (from the default 200 ms)
This can lead to TCP flows aborts in the worst case,
or spurious retransmits in other cases.
For example, this session gets far more throughput
than the requested 80kbit :
$ netperf -H 127.0.0.2 -l 100 -- -q 10000
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 127.0.0.2 () port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
540000 262144 262144 104.00 2.66
With the fix :
$ netperf -H 127.0.0.2 -l 100 -- -q 10000
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 127.0.0.2 () port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
540000 262144 262144 104.00 0.12
EDT allows for better control of rtx timers, since TCP has
a better idea of the earliest departure time of each skb
in the rtx queue. We only have to eventually add to the
timer the difference of the EDT time with current time.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 23 Oct 2018 19:02:03 +0000 (20:02 +0100)]
Merge branch 'parisc-4.20-1' of git://git./linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:
"Lots of small fixes and enhancements, most noteably:
- Many TLB and cache flush optimizations (Dave)
- Fixed HPMC/crash handler on 64-bit kernel (Dave and myself)
- Added alternative infrastructre. The kernel now live-patches itself
for various situations, e.g. replace SMP code when running on one
CPU only or drop cache flushes when system has no cache installed.
- vmlinuz now contains a full copy of the compressed vmlinux file.
This simplifies debugging the currently booted kernel.
- Unused driver removal (Christoph)
- Reduced warnings of Dino PCI bridge when running in qemu
- Removed gcc version check (Masahiro)"
* 'parisc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (23 commits)
parisc: Retrieve and display the PDC PAT capabilities
parisc: Optimze cache flush algorithms
parisc: Remove pte_inserted define
parisc: Add PDC PAT cell_info() and pd_get_pdc_revisions() functions
parisc: Drop two instructions from pte lookup code
parisc: Use zdep for shlw macro on PA1.1 and PA2.0
parisc: Add alternative coding infrastructure
parisc: Include compressed vmlinux file in vmlinuz boot kernel
extract-vmlinux: Check for uncompressed image as fallback
parisc: Fix address in HPMC IVA
parisc: Fix exported address of os_hpmc handler
parisc: Fix map_pages() to not overwrite existing pte entries
parisc: Purge TLB entries after updating page table entry and set page accessed flag in TLB handler
parisc: Release spinlocks using ordered store
parisc: Ratelimit dino stuck interrupt warnings
parisc: dino: Utilize DINO_MASK_IRQ() macro
parisc: Clean up crash header output
parisc: Add SYSTEM_INFO and REGISTER TOC PAT functions
parisc: Remove PTE load and fault check from L2_ptep macro
parisc: Reorder TLB flush timing calculation
...
Linus Torvalds [Tue, 23 Oct 2018 18:32:10 +0000 (19:32 +0100)]
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
"The main item in this pull request are the Spectre variant 1.1 fixes
from Julien Thierry.
A few other patches to improve various areas, and removal of some
obsolete mcount bits and a redundant kbuild conditional"
* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8802/1: Call syscall_trace_exit even when system call skipped
ARM: 8797/1: spectre-v1.1: harden __copy_to_user
ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitization
ARM: 8795/1: spectre-v1.1: use put_user() for __put_user()
ARM: 8794/1: uaccess: Prevent speculative use of the current addr_limit
ARM: 8793/1: signal: replace __put_user_error with __put_user
ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user()
ARM: 8791/1: vfp: use __copy_to_user() when saving VFP state
ARM: 8790/1: signal: always use __copy_to_user to save iwmmxt context
ARM: 8789/1: signal: copy registers using __copy_to_user()
ARM: 8801/1: makefile: use ARMv3M mode for RiscPC
ARM: 8800/1: use choice for kernel unwinders
ARM: 8798/1: remove unnecessary KBUILD_SRC ifeq conditional
ARM: 8788/1: ftrace: remove old mcount support
ARM: 8786/1: Debug kernel copy by printing
Linus Torvalds [Tue, 23 Oct 2018 18:07:25 +0000 (19:07 +0100)]
Merge branch 'x86-vdso-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 vdso updates from Ingo Molnar:
"Two main changes:
- Cleanups, simplifications and CLOCK_TAI support (Thomas Gleixner)
- Improve code generation (Andy Lutomirski)"
* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vdso: Rearrange do_hres() to improve code generation
x86/vdso: Document vgtod_ts better
x86/vdso: Remove "memory" clobbers in the vDSO syscall fallbacks
x66/vdso: Add CLOCK_TAI support
x86/vdso: Move cycle_last handling into the caller
x86/vdso: Simplify the invalid vclock case
x86/vdso: Replace the clockid switch case
x86/vdso: Collapse coarse functions
x86/vdso: Collapse high resolution functions
x86/vdso: Introduce and use vgtod_ts
x86/vdso: Use unsigned int consistently for vsyscall_gtod_data:: Seq
x86/vdso: Enforce 64bit clocksource
x86/time: Implement clocksource_arch_init()
clocksource: Provide clocksource_arch_init()
Takashi Iwai [Tue, 23 Oct 2018 18:07:07 +0000 (20:07 +0200)]
Merge tag 'asoc-v5.0-2' of https://git./linux/kernel/git/broonie/sound into for-linus
ASoC: Additional fixes for the next release
A couple of fixes for build bot issues in the STM32 SAI driver.
Rahul Verma [Tue, 23 Oct 2018 15:04:24 +0000 (08:04 -0700)]
qed: Fix static checker warning
Static Checker Warnings:
drivers/net/ethernet/qlogic/qed/qed_main.c:1510 qed_fill_link_capability()
error: uninitialized symbol 'tcvr_state'.
drivers/net/ethernet/qlogic/qed/qed_mcp.c:1951 qed_mcp_trans_speed_mask()
error: uninitialized symbol 'transceiver_state'.
drivers/net/ethernet/qlogic/qed/qed_mcp.c:1951 qed_mcp_trans_speed_mask()
error: uninitialized symbol 'transceiver_type'.
Symbols tcvr_state, transceiver_state and transceiver_type
are initialized with respective default state.
Fixes: c56a8be7e7aa ("qed: Add supported link and advertise link to display in ethtool.")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rahul Verma <Rahul.Verma@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Vecera [Tue, 23 Oct 2018 14:40:26 +0000 (16:40 +0200)]
Revert "be2net: remove desc field from be_eq_obj"
The mentioned commit needs to be reverted because we cannot pass
string allocated on stack to request_irq(). This function stores
uses this pointer for later use (e.g. /proc/interrupts) so we need
to keep this string persistently.
Fixes: d6d9704af8f4 ("be2net: remove desc field from be_eq_obj")
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Graul [Tue, 23 Oct 2018 11:40:39 +0000 (13:40 +0200)]
Revert "net: simplify sock_poll_wait"
This reverts commit
dd979b4df817e9976f18fb6f9d134d6bc4a3c317.
This broke tcp_poll for SMC fallback: An AF_SMC socket establishes an
internal TCP socket for the initial handshake with the remote peer.
Whenever the SMC connection can not be established this TCP socket is
used as a fallback. All socket operations on the SMC socket are then
forwarded to the TCP socket. In case of poll, the file->private_data
pointer references the SMC socket because the TCP socket has no file
assigned. This causes tcp_poll to wait on the wrong socket.
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 23 Oct 2018 17:55:35 +0000 (10:55 -0700)]
Merge branch 'netsec-fixes'
Masahisa Kojima says:
====================
Bugfix for the netsec driver
This patch series include bugfix for the netsec ethernet
controller driver, fix the problem in interface down/up.
changes in v2:
- change the place to perform the PHY power down
- use the MACROs defiend in include/uapi/linux/mii.h
- update commit comment
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Masahisa Kojima [Tue, 23 Oct 2018 11:24:28 +0000 (20:24 +0900)]
net: socionext: Reset tx queue in ndo_stop
We observed that packets and bytes count are not reset
when user performs interface down. Eventually, tx queue is
exhausted and packets will not be sent out.
To avoid this problem, resets tx queue in ndo_stop.
Fixes: 533dd11a12f6 ("net: socionext: Add Synquacer NetSec driver")
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Yoshitoyo Osaki <osaki.yoshitoyo@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Masahisa Kojima [Tue, 23 Oct 2018 11:24:27 +0000 (20:24 +0900)]
net: socionext: Add dummy PHY register read in phy_write()
There is a compatibility issue between RTL8211E implemented
in Developerbox and netsec ethernet controller IP.
Our MDIO controller stops MDC clock right after the write
access, but RTL8211E expects MDC clock must be kept toggling
for several clock cycle with MDIO high before entering
the IDLE state. Without keeping clock after write access,
write access is not correctly handled and register is not
updated.
To meet this requirement, netsec driver needs to issue dummy
read(e.g. read PHYID1(offset 0x2) register) right after write
access, to keep MDC clock.
We think this compatibility issue is a problem specific to
our MDIO controller and RTL8211E.
Fixes: 533dd11a12f6 ("net: socionext: Add Synquacer NetSec driver")
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Yoshitoyo Osaki <osaki.yoshitoyo@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Masahisa Kojima [Tue, 23 Oct 2018 11:24:26 +0000 (20:24 +0900)]
net: socionext: Stop PHY before resetting netsec
In ndo_stop, driver resets the netsec ethernet controller IP.
When the netsec IP is reset, HW running mode turns to NRM mode
and driver has to wait until this mode transition completes.
But mode transition to NRM will not complete if the PHY is
in normal operation state. Netsec IP requires PHY is in
power down state when it is reset.
This modification stops the PHY before resetting netsec.
Together with this modification, phy_addr is stored in netsec_priv
structure because ndev->phydev is not yet ready in ndo_init.
Fixes: 533dd11a12f6 ("net: socionext: Add Synquacer NetSec driver")
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Yoshitoyo Osaki <osaki.yoshitoyo@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 23 Oct 2018 17:43:04 +0000 (18:43 +0100)]
Merge branch 'x86-pti-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 pti updates from Ingo Molnar:
"The main changes:
- Make the IBPB barrier more strict and add STIBP support (Jiri
Kosina)
- Micro-optimize and clean up the entry code (Andy Lutomirski)
- ... plus misc other fixes"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Propagate information about RSB filling mitigation to sysfs
x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC variant
x86/CPU: Fix unused variable warning when !CONFIG_IA32_EMULATION
x86/pti/64: Remove the SYSCALL64 entry trampoline
x86/entry/64: Use the TSS sp2 slot for SYSCALL/SYSRET scratch space
x86/entry/64: Document idtentry
Linus Torvalds [Tue, 23 Oct 2018 17:17:11 +0000 (18:17 +0100)]
Merge branch 'x86-platform-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar:
"Two minor OLPC changes: a build fix and a new quirk"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/olpc: Fix build error with CONFIG_MFD_CS5535=m
x86/olpc: Indicate that legacy PC XO-1 platform should not register RTC
Linus Torvalds [Tue, 23 Oct 2018 16:54:58 +0000 (17:54 +0100)]
Merge branch 'x86-paravirt-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 paravirt updates from Ingo Molnar:
"Two main changes:
- Remove no longer used parts of the paravirt infrastructure and put
large quantities of paravirt ops under a new config option
PARAVIRT_XXL=y, which is selected by XEN_PV only. (Joergen Gross)
- Enable PV spinlocks on Hyperv (Yi Sun)"
* 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/hyperv: Enable PV qspinlock for Hyper-V
x86/hyperv: Add GUEST_IDLE_MSR support
x86/paravirt: Clean up native_patch()
x86/paravirt: Prevent redefinition of SAVE_FLAGS macro
x86/xen: Make xen_reservation_lock static
x86/paravirt: Remove unneeded mmu related paravirt ops bits
x86/paravirt: Move the Xen-only pv_mmu_ops under the PARAVIRT_XXL umbrella
x86/paravirt: Move the pv_irq_ops under the PARAVIRT_XXL umbrella
x86/paravirt: Move the Xen-only pv_cpu_ops under the PARAVIRT_XXL umbrella
x86/paravirt: Move items in pv_info under PARAVIRT_XXL umbrella
x86/paravirt: Introduce new config option PARAVIRT_XXL
x86/paravirt: Remove unused paravirt bits
x86/paravirt: Use a single ops structure
x86/paravirt: Remove clobbers from struct paravirt_patch_site
x86/paravirt: Remove clobbers parameter from paravirt patch functions
x86/paravirt: Make paravirt_patch_call() and paravirt_patch_jmp() static
x86/xen: Add SPDX identifier in arch/x86/xen files
x86/xen: Link platform-pci-unplug.o only if CONFIG_XEN_PVHVM
x86/xen: Move pv specific parts of arch/x86/xen/mmu.c to mmu_pv.c
x86/xen: Move pv irq related functions under CONFIG_XEN_PV umbrella
Linus Torvalds [Tue, 23 Oct 2018 16:05:28 +0000 (17:05 +0100)]
Merge branch 'x86-mm-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
"Lots of changes in this cycle:
- Lots of CPA (change page attribute) optimizations and related
cleanups (Thomas Gleixner, Peter Zijstra)
- Make lazy TLB mode even lazier (Rik van Riel)
- Fault handler cleanups and improvements (Dave Hansen)
- kdump, vmcore: Enable kdumping encrypted memory with AMD SME
enabled (Lianbo Jiang)
- Clean up VM layout documentation (Baoquan He, Ingo Molnar)
- ... plus misc other fixes and enhancements"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
x86/stackprotector: Remove the call to boot_init_stack_canary() from cpu_startup_entry()
x86/mm: Kill stray kernel fault handling comment
x86/mm: Do not warn about PCI BIOS W+X mappings
resource: Clean it up a bit
resource: Fix find_next_iomem_res() iteration issue
resource: Include resource end in walk_*() interfaces
x86/kexec: Correct KEXEC_BACKUP_SRC_END off-by-one error
x86/mm: Remove spurious fault pkey check
x86/mm/vsyscall: Consider vsyscall page part of user address space
x86/mm: Add vsyscall address helper
x86/mm: Fix exception table comments
x86/mm: Add clarifying comments for user addr space
x86/mm: Break out user address space handling
x86/mm: Break out kernel address space handling
x86/mm: Clarify hardware vs. software "error_code"
x86/mm/tlb: Make lazy TLB mode lazier
x86/mm/tlb: Add freed_tables element to flush_tlb_info
x86/mm/tlb: Add freed_tables argument to flush_tlb_mm_range
smp,cpumask: introduce on_each_cpu_cond_mask
smp: use __cpumask_set_cpu in on_each_cpu_cond
...
Linus Torvalds [Tue, 23 Oct 2018 15:47:41 +0000 (16:47 +0100)]
Merge branch 'x86-hyperv-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 hyperv updates from Ingo Molnar:
"Two small changes: a boot warning removal and a minor cleanup"
* 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/hyperv: Remove unused include
x86/hyperv: Suppress "PCI: Fatal: No config space access function found"
Linus Torvalds [Tue, 23 Oct 2018 15:31:33 +0000 (16:31 +0100)]
Merge branch 'x86-grub2-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 grub2 updates from Ingo Molnar:
"This extends the x86 boot protocol to include an address for the RSDP
table - utilized by Xen currently.
Matching Grub2 patches are pending as well. (Juergen Gross)"
* 'x86-grub2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/acpi, x86/boot: Take RSDP address for boot params if available
x86/boot: Add ACPI RSDP address to setup_header
x86/xen: Fix boot loader version reported for PVH guests
Linus Torvalds [Tue, 23 Oct 2018 15:16:40 +0000 (16:16 +0100)]
Merge branch 'x86-cpu-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 cpu updates from Ingo Molnar:
"The main changes in this cycle were:
- Add support for the "Dhyana" x86 CPUs by Hygon: these are licensed
based on the AMD Zen architecture, and are built and sold in China,
for domestic datacenter use. The code is pretty close to AMD
support, mostly with a few quirks and enumeration differences. (Pu
Wen)
- Enable CPUID support on Cyrix 6x86/6x86L processors"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/cpupower: Add Hygon Dhyana support
cpufreq: Add Hygon Dhyana support
ACPI: Add Hygon Dhyana support
x86/xen: Add Hygon Dhyana support to Xen
x86/kvm: Add Hygon Dhyana support to KVM
x86/mce: Add Hygon Dhyana support to the MCA infrastructure
x86/bugs: Add Hygon Dhyana to the respective mitigation machinery
x86/apic: Add Hygon Dhyana support
x86/pci, x86/amd_nb: Add Hygon Dhyana support to PCI and northbridge
x86/amd_nb: Check vendor in AMD-only functions
x86/alternative: Init ideal_nops for Hygon Dhyana
x86/events: Add Hygon Dhyana support to PMU infrastructure
x86/smpboot: Do not use BSP INIT delay and MWAIT to idle on Dhyana
x86/cpu/mtrr: Support TOP_MEM2 and get MTRR number
x86/cpu: Get cache info and setup cache cpumap for Hygon Dhyana
x86/cpu: Create Hygon Dhyana architecture support file
x86/CPU: Change query logic so CPUID is enabled before testing
x86/CPU: Use correct macros for Cyrix calls
Linus Torvalds [Tue, 23 Oct 2018 15:04:22 +0000 (16:04 +0100)]
Merge branch 'x86-build-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 build update from Ingo Molnar:
"A small cleanup to x86 Kconfigs"
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kconfig: Remove redundant 'default n' lines from all x86 Kconfig's
Linus Torvalds [Tue, 23 Oct 2018 14:54:42 +0000 (15:54 +0100)]
Merge branch 'x86-boot-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 boot updates from Ingo Molnar:
"Two cleanups and a bugfix for a rare boot option combination"
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot/KASLR: Remove return value from handle_mem_options()
x86/corruption-check: Use pr_*() instead of printk()
x86/corruption-check: Fix panic in memory_corruption_check() when boot option without value is provided
Linus Torvalds [Tue, 23 Oct 2018 14:24:22 +0000 (15:24 +0100)]
Merge branch 'x86-asm-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 asm updates from Ingo Molnar:
"The main changes in this cycle were the fsgsbase related preparatory
patches from Chang S. Bae - but there's also an optimized
memcpy_flushcache() and a cleanup for the __cmpxchg_double() assembly
glue"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fsgsbase/64: Clean up various details
x86/segments: Introduce the 'CPUNODE' naming to better document the segment limit CPU/node NR trick
x86/vdso: Initialize the CPU/node NR segment descriptor earlier
x86/vdso: Introduce helper functions for CPU and node number
x86/segments/64: Rename the GDT PER_CPU entry to CPU_NUMBER
x86/fsgsbase/64: Factor out FS/GS segment loading from __switch_to()
x86/fsgsbase/64: Convert the ELF core dump code to the new FSGSBASE helpers
x86/fsgsbase/64: Make ptrace use the new FS/GS base helpers
x86/fsgsbase/64: Introduce FS/GS base helper functions
x86/fsgsbase/64: Fix ptrace() to read the FS/GS base accurately
x86/asm: Use CC_SET()/CC_OUT() in __cmpxchg_double()
x86/asm: Optimize memcpy_flushcache()
Linus Torvalds [Tue, 23 Oct 2018 14:15:20 +0000 (15:15 +0100)]
Merge branch 'x86-apic-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 apic updates from Ingo Molnar:
"Improve the spreading of managed IRQs at allocation time"
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irq/matrix: Spread managed interrupts on allocation
irq/matrix: Split out the CPU selection code into a helper
Linus Torvalds [Tue, 23 Oct 2018 14:00:03 +0000 (15:00 +0100)]
Merge branch 'sched-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"The main changes are:
- Migrate CPU-intense 'misfit' tasks on asymmetric capacity systems,
to better utilize (much) faster 'big core' CPUs. (Morten Rasmussen,
Valentin Schneider)
- Topology handling improvements, in particular when CPU capacity
changes and related load-balancing fixes/improvements (Morten
Rasmussen)
- ... plus misc other improvements, fixes and updates"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits)
sched/completions/Documentation: Add recommendation for dynamic and ONSTACK completions
sched/completions/Documentation: Clean up the document some more
sched/completions/Documentation: Fix a couple of punctuation nits
cpu/SMT: State SMT is disabled even with nosmt and without "=force"
sched/core: Fix comment regarding nr_iowait_cpu() and get_iowait_load()
sched/fair: Remove setting task's se->runnable_weight during PELT update
sched/fair: Disable LB_BIAS by default
sched/pelt: Fix warning and clean up IRQ PELT config
sched/topology: Make local variables static
sched/debug: Use symbolic names for task state constants
sched/numa: Remove unused numa_stats::nr_running field
sched/numa: Remove unused code from update_numa_stats()
sched/debug: Explicitly cast sched_feat() to bool
sched/core: Disable SD_PREFER_SIBLING on asymmetric CPU capacity domains
sched/fair: Don't move tasks to lower capacity CPUs unless necessary
sched/fair: Set rq->rd->overload when misfit
sched/fair: Wrap rq->rd->overload accesses with READ/WRITE_ONCE()
sched/core: Change root_domain->overload type to int
sched/fair: Change 'prefer_sibling' type to bool
sched/fair: Kick nohz balance if rq->misfit_task_load
...
Linus Torvalds [Tue, 23 Oct 2018 12:46:36 +0000 (13:46 +0100)]
Merge branch 'ras-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull RAS updates from Ingo Molnar:
"Misc smaller fixes and cleanups"
* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mcelog: Remove one mce_helper definition
x86/mce: Add macros for the corrected error count bit field
x86/mce: Use BIT_ULL(x) for bit mask definitions
x86/mce-inject: Reset injection struct after injection
Linus Torvalds [Tue, 23 Oct 2018 12:32:18 +0000 (13:32 +0100)]
Merge branch 'perf-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"The main updates in this cycle were:
- Lots of perf tooling changes too voluminous to list (big perf trace
and perf stat improvements, lots of libtraceevent reorganization,
etc.), so I'll list the authors and refer to the changelog for
details:
Benjamin Peterson, Jérémie Galarneau, Kim Phillips, Peter
Zijlstra, Ravi Bangoria, Sangwon Hong, Sean V Kelley, Steven
Rostedt, Thomas Gleixner, Ding Xiang, Eduardo Habkost, Thomas
Richter, Andi Kleen, Sanskriti Sharma, Adrian Hunter, Tzvetomir
Stoyanov, Arnaldo Carvalho de Melo, Jiri Olsa.
... with the bulk of the changes written by Jiri Olsa, Tzvetomir
Stoyanov and Arnaldo Carvalho de Melo.
- Continued intel_rdt work with a focus on playing well with perf
events. This also imported some non-perf RDT work due to
dependencies. (Reinette Chatre)
- Implement counter freezing for Arch Perfmon v4 (Skylake and newer).
This allows to speed up the PMI handler by avoiding unnecessary MSR
writes and make it more accurate. (Andi Kleen)
- kprobes cleanups and simplification (Masami Hiramatsu)
- Intel Goldmont PMU updates (Kan Liang)
- ... plus misc other fixes and updates"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (155 commits)
kprobes/x86: Use preempt_enable() in optimized_callback()
x86/intel_rdt: Prevent pseudo-locking from using stale pointers
kprobes, x86/ptrace.h: Make regs_get_kernel_stack_nth() not fault on bad stack
perf/x86/intel: Export mem events only if there's PEBS support
x86/cpu: Drop pointless static qualifier in punit_dev_state_show()
x86/intel_rdt: Fix initial allocation to consider CDP
x86/intel_rdt: CBM overlap should also check for overlap with CDP peer
x86/intel_rdt: Introduce utility to obtain CDP peer
tools lib traceevent, perf tools: Move struct tep_handler definition in a local header file
tools lib traceevent: Separate out tep_strerror() for strerror_r() issues
perf python: More portable way to make CFLAGS work with clang
perf python: Make clang_has_option() work on Python 3
perf tools: Free temporary 'sys' string in read_event_files()
perf tools: Avoid double free in read_event_file()
perf tools: Free 'printk' string in parse_ftrace_printk()
perf tools: Cleanup trace-event-info 'tdata' leak
perf strbuf: Match va_{add,copy} with va_end
perf test: S390 does not support watchpoints in test 22
perf auxtrace: Include missing asm/bitsperlong.h to get BITS_PER_LONG
tools include: Adopt linux/bits.h
...
Linus Torvalds [Tue, 23 Oct 2018 12:08:53 +0000 (13:08 +0100)]
Merge branch 'locking-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull locking and misc x86 updates from Ingo Molnar:
"Lots of changes in this cycle - in part because locking/core attracted
a number of related x86 low level work which was easier to handle in a
single tree:
- Linux Kernel Memory Consistency Model updates (Alan Stern, Paul E.
McKenney, Andrea Parri)
- lockdep scalability improvements and micro-optimizations (Waiman
Long)
- rwsem improvements (Waiman Long)
- spinlock micro-optimization (Matthew Wilcox)
- qspinlocks: Provide a liveness guarantee (more fairness) on x86.
(Peter Zijlstra)
- Add support for relative references in jump tables on arm64, x86
and s390 to optimize jump labels (Ard Biesheuvel, Heiko Carstens)
- Be a lot less permissive on weird (kernel address) uaccess faults
on x86: BUG() when uaccess helpers fault on kernel addresses (Jann
Horn)
- macrofy x86 asm statements to un-confuse the GCC inliner. (Nadav
Amit)
- ... and a handful of other smaller changes as well"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (57 commits)
locking/lockdep: Make global debug_locks* variables read-mostly
locking/lockdep: Fix debug_locks off performance problem
locking/pvqspinlock: Extend node size when pvqspinlock is configured
locking/qspinlock_stat: Count instances of nested lock slowpaths
locking/qspinlock, x86: Provide liveness guarantee
x86/asm: 'Simplify' GEN_*_RMWcc() macros
locking/qspinlock: Rework some comments
locking/qspinlock: Re-order code
locking/lockdep: Remove duplicated 'lock_class_ops' percpu array
x86/defconfig: Enable CONFIG_USB_XHCI_HCD=y
futex: Replace spin_is_locked() with lockdep
locking/lockdep: Make class->ops a percpu counter and move it under CONFIG_DEBUG_LOCKDEP=y
x86/jump-labels: Macrofy inline assembly code to work around GCC inlining bugs
x86/cpufeature: Macrofy inline assembly code to work around GCC inlining bugs
x86/extable: Macrofy inline assembly code to work around GCC inlining bugs
x86/paravirt: Work around GCC inlining bugs when compiling paravirt ops
x86/bug: Macrofy the BUG table section handling, to work around GCC inlining bugs
x86/alternatives: Macrofy lock prefixes to work around GCC inlining bugs
x86/refcount: Work around GCC inlining bug
x86/objtool: Use asm macros to work around GCC inlining bugs
...
git.samba.org / sfrench / cifs-2.6.git / log