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2 years agodm table: audit all dm_table_get_target() callers
Mike Snitzer [Tue, 5 Jul 2022 20:12:27 +0000 (16:12 -0400)]
dm table: audit all dm_table_get_target() callers

All callers of dm_table_get_target() are expected to do proper bounds
checking on the index they pass.

Move dm_table_get_target() to dm-core.h to make it extra clear that only
DM core code should be using it. Switch it to be inlined while at it.

Standardize all DM core callers to use the same for loop pattern and
make associated variables as local as possible. Rename some variables
(e.g. s/table/t/ and s/tgt/ti/) along the way.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2 years agodm table: remove dm_table_get_num_targets() wrapper
Mike Snitzer [Tue, 5 Jul 2022 18:00:36 +0000 (14:00 -0400)]
dm table: remove dm_table_get_num_targets() wrapper

More efficient and readable to just access table->num_targets directly.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2 years agodm: add two stage requeue mechanism
Ming Lei [Fri, 24 Jun 2022 14:12:55 +0000 (22:12 +0800)]
dm: add two stage requeue mechanism

Commit 61b6e2e5321d ("dm: fix BLK_STS_DM_REQUEUE handling when dm_io
represents split bio") reverted DM core's bio splitting back to using
bio_split()+bio_chain() because it was found that otherwise DM's
BLK_STS_DM_REQUEUE would trigger a live-lock waiting for bio
completion that would never occur.

Restore using bio_trim()+bio_inc_remaining(), like was done in commit
7dd76d1feec7 ("dm: improve bio splitting and associated IO
accounting"), but this time with proper handling for the above
scenario that is covered in more detail in the commit header for
61b6e2e5321d.

Solve this issue by adding a two staged dm_io requeue mechanism that
uses the new dm_bio_rewind() via dm_io_rewind():

1) requeue the dm_io into the requeue_list added to struct
   mapped_device, and schedule it via new added requeue work. This
   workqueue just clones the dm_io->orig_bio (which DM saves and
   ensures its end sector isn't modified). dm_io_rewind() uses the
   sectors and sectors_offset members of the dm_io that are recorded
   relative to the end of orig_bio: dm_bio_rewind()+bio_trim() are
   then used to make that cloned bio reflect the subset of the
   original bio that is represented by the dm_io that is being
   requeued.

2) the 2nd stage requeue is same with original requeue, but
   io->orig_bio points to new cloned bio (which matches the requeued
   dm_io as described above).

This allows DM core to shift the need for bio cloning from bio-split
time (during IO submission) to the less likely BLK_STS_DM_REQUEUE
handling (after IO completes with that error).

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2 years agodm: add dm_bio_rewind() API to DM core
Ming Lei [Fri, 24 Jun 2022 14:12:52 +0000 (22:12 +0800)]
dm: add dm_bio_rewind() API to DM core

Commit 7759eb23fd98 ("block: remove bio_rewind_iter()") removed
a similar API for the following reasons:
    ```
    It is pointed that bio_rewind_iter() is one very bad API[1]:

    1) bio size may not be restored after rewinding

    2) it causes some bogus change, such as 5151842b9d8732 (block: reset
    bi_iter.bi_done after splitting bio)

    3) rewinding really makes things complicated wrt. bio splitting

    4) unnecessary updating of .bi_done in fast path

    [1] https://marc.info/?t=153549924200005&r=1&w=2

    So this patch takes Kent's suggestion to restore one bio into its original
    state via saving bio iterator(struct bvec_iter) in bio_integrity_prep(),
    given now bio_rewind_iter() is only used by bio integrity code.
    ```
However, saving off a copy of the 32 bytes bio->bi_iter in case rewind
needed isn't efficient because it bloats per-bio-data for what is an
unlikely case. That suggestion also ignores the need to restore
crypto and integrity info.

Add dm_bio_rewind() API for a specific use-case that is much more narrow
than the previous more generic rewind code that was reverted:

1) most bios have a fixed end sector since bio split is done from front
   of the bio, if driver just records how many sectors between current
   bio's start sector and the original bio's end sector, the original
   position can be restored. Keeping the original bio's end sector
   fixed is a _hard_ requirement for this interface!

2) if a bio's end sector won't change (usually bio_trim() isn't
   called, or in the case of DM it preserves original bio), user can
   restore the original position by storing sector offset from the
   current ->bi_iter.bi_sector to bio's end sector; together with
   saving bio size, only 8 bytes is needed to restore to original
   bio.

3) DM's requeue use case: when BLK_STS_DM_REQUEUE happens, DM core
   needs to restore to an "original bio" which represents the current
   dm_io to be requeued (which may be a subset of the original bio).
   By storing the sector offset from the original bio's end sector and
   dm_io's size, dm_bio_rewind() can restore such original bio. See
   commit 7dd76d1feec7 ("dm: improve bio splitting and associated IO
   accounting") for more details on how DM does this. Leveraging this,
   allows DM core to shift the need for bio cloning from bio-split
   time (during IO submission) to the less likely BLK_STS_DM_REQUEUE
   handling (after IO completes with that error).

4) Unlike the original rewind API, dm_bio_rewind() doesn't add .bi_done
   to bvec_iter and there is no effect on the fast path.

Implement dm_bio_rewind() by factoring out clear helpers that it calls:
dm_bio_integrity_rewind, dm_bio_crypt_rewind and dm_bio_rewind_iter.

DM is able to ensure that dm_bio_rewind() is used safely but, given
the constraint that the bio's end must never change, other
hypothetical future callers may not take the same care. So make
dm_bio_rewind() and all supporting code local to DM to avoid risk of
hypothetical abuse. A "dm_" prefix was added to all functions to avoid
any namespace collisions.

Suggested-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2 years agodm: improve BLK_STS_DM_REQUEUE and BLK_STS_AGAIN handling
Ming Lei [Fri, 24 Jun 2022 14:12:53 +0000 (22:12 +0800)]
dm: improve BLK_STS_DM_REQUEUE and BLK_STS_AGAIN handling

If either BLK_STS_DM_REQUEUE or BLK_STS_AGAIN is returned for POLLED
io, we requeue the original bio into deferred list and kick md->wq to
re-submit it to block layer.

Improve the handling in the following way:

1) Factor out dm_handle_requeue() for handling dm_io requeue.

2) Unify handling for BLK_STS_DM_REQUEUE and BLK_STS_AGAIN: clear
   REQ_POLLED for BLK_STS_DM_REQUEUE too, for the sake of simplicity,
   given BLK_STS_DM_REQUEUE is very unusual.

3) Queue md->wq explicitly in dm_handle_requeue(), so requeue handling
   becomes more robust.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2 years agodm: refactor dm_md_mempool allocation
Christoph Hellwig [Wed, 8 Jun 2022 06:34:09 +0000 (08:34 +0200)]
dm: refactor dm_md_mempool allocation

The current split between dm_table_alloc_md_mempools and
dm_alloc_md_mempools is rather arbitrary, so merge the two
into one easy to follow function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2 years agodm: unexport dm_get_reserved_rq_based_ios
Christoph Hellwig [Wed, 8 Jun 2022 06:34:08 +0000 (08:34 +0200)]
dm: unexport dm_get_reserved_rq_based_ios

dm_get_reserved_rq_based_ios is only used in the core dm code, so
remove the export.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2 years agoblock: simplify disk_set_independent_access_ranges
Christoph Hellwig [Wed, 29 Jun 2022 06:20:13 +0000 (08:20 +0200)]
block: simplify disk_set_independent_access_ranges

Lift setting disk->ia_ranges from disk_register_independent_access_ranges
into disk_set_independent_access_ranges, and make the behavior the same
for the registered vs non-registered queue cases.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Link: https://lore.kernel.org/r/20220629062013.1331068-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: move ->ia_ranges from the request_queue to the gendisk
Christoph Hellwig [Wed, 29 Jun 2022 06:20:12 +0000 (08:20 +0200)]
block: move ->ia_ranges from the request_queue to the gendisk

Independent access ranges only matter for file system I/O and are only
valid with a registered gendisk, so move them there.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Link: https://lore.kernel.org/r/20220629062013.1331068-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: remove "select BLK_RQ_IO_DATA_LEN" from BLK_CGROUP_IOCOST dependency
Ying Sun [Wed, 29 Jun 2022 06:24:09 +0000 (14:24 +0800)]
block: remove "select BLK_RQ_IO_DATA_LEN" from BLK_CGROUP_IOCOST dependency

The configuration item BLK_RQ_IO_DATA_LEN is not declared in the kernel.
Select BLK_RQ_IO_DATA_LEN is meaningless which could be removed.

Signed-off-by: Ying Sun <sunying@nj.iscas.ac.cn>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220629062409.19458-1-sunying@nj.iscas.ac.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblk-mq: cleanup disk sysfs registration
Christoph Hellwig [Tue, 28 Jun 2022 17:18:50 +0000 (19:18 +0200)]
blk-mq: cleanup disk sysfs registration

Pass a gendisk to the sysfs register/unregister functions and give
them descriptive names.  Also move the unregistration helper next
to the one doing the registration.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220628171850.1313069-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblk-mq: rename blk_mq_sysfs_{,un}register
Christoph Hellwig [Tue, 28 Jun 2022 17:18:49 +0000 (19:18 +0200)]
blk-mq: rename blk_mq_sysfs_{,un}register

Add a _hctx postfix to better describe what the functions do, match
the debugfs equivalents and release the old names for functions that
should be using them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220628171850.1313069-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: remove the extra gendisk reference in __blk_mq_register_dev
Christoph Hellwig [Tue, 28 Jun 2022 17:18:48 +0000 (19:18 +0200)]
block: remove the extra gendisk reference in __blk_mq_register_dev

kobject_add already grabs a reference to the parent, no need to have
another one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220628171850.1313069-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: use default groups to register the queue attributes
Christoph Hellwig [Tue, 28 Jun 2022 17:18:47 +0000 (19:18 +0200)]
block: use default groups to register the queue attributes

Set up the default_groups for blk_queue_ktype instead of manually calling
sysfs_create_group.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220628171850.1313069-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: remove a superflous queue kobject reference
Christoph Hellwig [Tue, 28 Jun 2022 17:18:46 +0000 (19:18 +0200)]
block: remove a superflous queue kobject reference

kobject_add already adds a reference to the parent that is dropped
on deletion, so don't bother grabbing another one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220628171850.1313069-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: simplify blktrace sysfs attribute creation
Christoph Hellwig [Tue, 28 Jun 2022 17:18:45 +0000 (19:18 +0200)]
block: simplify blktrace sysfs attribute creation

Add the trace attributes to the default gendisk attributes, just like
we already do for partitions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220628171850.1313069-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: remove blk_cleanup_disk
Christoph Hellwig [Sun, 19 Jun 2022 06:05:52 +0000 (08:05 +0200)]
block: remove blk_cleanup_disk

blk_cleanup_disk is nothing but a trivial wrapper for put_disk now,
so remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: simplify disk shutdown
Christoph Hellwig [Sun, 19 Jun 2022 06:05:51 +0000 (08:05 +0200)]
block: simplify disk shutdown

Set the queue dying flag and call blk_mq_exit_queue from del_gendisk for
all disks that do not have separately allocated queues, and thus remove
the need to call blk_cleanup_queue for them.

Rename blk_cleanup_disk to blk_mq_destroy_queue to make it clear that
this function is intended only for separately allocated blk-mq queues.

This saves an extra queue freeze for devices without a separately
allocated queue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: stop setting the nomerges flags in blk_cleanup_queue
Christoph Hellwig [Sun, 19 Jun 2022 06:05:50 +0000 (08:05 +0200)]
block: stop setting the nomerges flags in blk_cleanup_queue

These flags only apply to file system I/O, and all file system I/O is
already drained by del_gendisk and thus can't be in progress when
blk_cleanup_queue is called.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: remove QUEUE_FLAG_DEAD
Christoph Hellwig [Sun, 19 Jun 2022 06:05:49 +0000 (08:05 +0200)]
block: remove QUEUE_FLAG_DEAD

Disallow setting the blk-mq state on any queue that is already dying as
setting the state even then is a bad idea, and remove the now unused
QUEUE_FLAG_DEAD flag.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agomtip32xx: fix device removal
Christoph Hellwig [Sun, 19 Jun 2022 06:05:48 +0000 (08:05 +0200)]
mtip32xx: fix device removal

Use the proper helper to mark a surpise removal, remove the gendisk as
soon as possible when removing the device and implement the ->free_disk
callback to ensure the private data is alive as long as the gendisk has
references.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agomtip32xx: remove the device_status debugfs file
Christoph Hellwig [Sun, 19 Jun 2022 06:05:47 +0000 (08:05 +0200)]
mtip32xx: remove the device_status debugfs file

This file is a huge mess that iterates over all devices and is in the
way of fixing the device removal in this driver, so remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblk-mq: blk_mq_tag_busy is no need to return a value
Liu Song [Sat, 25 Jun 2022 15:15:21 +0000 (23:15 +0800)]
blk-mq: blk_mq_tag_busy is no need to return a value

Currently "blk_mq_tag_busy" return value has no effect, so adjust it.
Some code implementations have also been adjusted to enhance
readability.

Signed-off-by: Liu Song <liusong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1656170121-1619-1-git-send-email-liusong@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: Always initialize bio IO priority on submit
Jan Kara [Thu, 23 Jun 2022 07:48:34 +0000 (09:48 +0200)]
block: Always initialize bio IO priority on submit

Currently, IO priority set in task's IO context is not reflected in the
bio->bi_ioprio for most IO (only io_uring and direct IO set it). This
results in odd results where process is submitting some bios with one
priority and other bios with a different (unset) priority and due to
differing priorities bios cannot be merged. Make sure bio->bi_ioprio is
always set on bio submission.

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220623074840.5960-9-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: Initialize bio priority earlier
Jan Kara [Thu, 23 Jun 2022 07:48:33 +0000 (09:48 +0200)]
block: Initialize bio priority earlier

Bio's IO priority needs to be initialized before we try to merge the bio
with other bios. Otherwise we could merge bios which would otherwise
receive different IO priorities leading to possible QoS issues.

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220623074840.5960-8-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblk-ioprio: Convert from rqos policy to direct call
Jan Kara [Thu, 23 Jun 2022 07:48:32 +0000 (09:48 +0200)]
blk-ioprio: Convert from rqos policy to direct call

Convert blk-ioprio handling from a rqos policy to a direct call from
blk_mq_submit_bio(). Firstly, blk-ioprio is not much of a rqos policy
anyway, it just needs a hook in bio submission path to set the bio's IO
priority. Secondly, the rqos .track hook gets actually called too late
for blk-ioprio purposes and introducing a special rqos hook just for
blk-ioprio looks even weirder.

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220623074840.5960-7-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblk-ioprio: Remove unneeded field
Jan Kara [Thu, 23 Jun 2022 07:48:31 +0000 (09:48 +0200)]
blk-ioprio: Remove unneeded field

blkcg->ioprio_set field is not really useful except for avoiding
possibly more expensive checks inside blkcg_ioprio_track(). The check
for blkcg->prio_policy being equal to POLICY_NO_CHANGE does the same
service so just remove the ioprio_set field and replace the check.

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220623074840.5960-6-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: Fix handling of tasks without ioprio in ioprio_get(2)
Jan Kara [Thu, 23 Jun 2022 07:48:30 +0000 (09:48 +0200)]
block: Fix handling of tasks without ioprio in ioprio_get(2)

ioprio_get(2) can be asked to return the best IO priority from several
tasks (IOPRIO_WHO_PGRP, IOPRIO_WHO_USER). Currently the call treats
tasks without set IO priority as having priority
IOPRIO_CLASS_BE/IOPRIO_BE_NORM however this does not really reflect the
IO priority the task will get (which depends on task's nice value).

Fix the code to use the real IO priority task's IO will use. We have to
modify code for ioprio_get(IOPRIO_WHO_PROCESS) to keep returning
IOPRIO_CLASS_NONE priority for tasks without set IO priority as a
special case to maintain userspace visible API.

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220623074840.5960-5-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: Make ioprio_best() static
Jan Kara [Thu, 23 Jun 2022 07:48:29 +0000 (09:48 +0200)]
block: Make ioprio_best() static

Nobody outside of block/ioprio.c uses it.

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220623074840.5960-4-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: Generalize get_current_ioprio() for any task
Jan Kara [Thu, 23 Jun 2022 07:48:28 +0000 (09:48 +0200)]
block: Generalize get_current_ioprio() for any task

get_current_ioprio() operates only on current task. We will need the
same functionality for other tasks as well. Generalize
get_current_ioprio() for that and also move the bulk out of the header
file because it is large enough.

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220623074840.5960-3-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: Return effective IO priority from get_current_ioprio()
Jan Kara [Thu, 23 Jun 2022 07:48:27 +0000 (09:48 +0200)]
block: Return effective IO priority from get_current_ioprio()

get_current_ioprio() is used to initialize IO priority of various
requests. As such it should be returning the effective IO priority of
the task (i.e., reflecting the fact that unset IO priority should get
set based on task's CPU priority) so that the conversion is concentrated
in one place.

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220623074840.5960-2-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: fix default IO priority handling again
Jan Kara [Thu, 23 Jun 2022 07:48:26 +0000 (09:48 +0200)]
block: fix default IO priority handling again

Commit e70344c05995 ("block: fix default IO priority handling")
introduced an inconsistency in get_current_ioprio() that tasks without
IO context return IOPRIO_DEFAULT priority while tasks with freshly
allocated IO context will return 0 (IOPRIO_CLASS_NONE/0) IO priority.
Tasks without IO context used to be rare before 5a9d041ba2f6 ("block:
move io_context creation into where it's needed") but after this commit
they became common because now only BFQ IO scheduler setups task's IO
context. Similar inconsistency is there for get_task_ioprio() so this
inconsistency is now exposed to userspace and userspace will see
different IO priority for tasks operating on devices with BFQ compared
to devices without BFQ. Furthemore the changes done by commit
e70344c05995 change the behavior when no IO priority is set for BFQ IO
scheduler which is also documented in ioprio_set(2) manpage:

"If no I/O scheduler has been set for a thread, then by default the I/O
priority will follow the CPU nice value (setpriority(2)).  In Linux
kernels before version 2.6.24, once an I/O priority had been set using
ioprio_set(), there was no way to reset the I/O scheduling behavior to
the default. Since Linux 2.6.24, specifying ioprio as 0 can be used to
reset to the default I/O scheduling behavior."

So make sure we default to IOPRIO_CLASS_NONE as used to be the case
before commit e70344c05995. Also cleanup alloc_io_context() to
explicitely set this IO priority for the allocated IO context to avoid
future surprises. Note that we tweak ioprio_best() to maintain
ioprio_get(2) behavior and make this commit easily backportable.

CC: stable@vger.kernel.org
Fixes: e70344c05995 ("block: fix default IO priority handling")
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220623074840.5960-1-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblk-mq: Don't disable preemption around __blk_mq_run_hw_queue().
Sebastian Andrzej Siewior [Wed, 22 Jun 2022 08:25:54 +0000 (10:25 +0200)]
blk-mq: Don't disable preemption around __blk_mq_run_hw_queue().

__blk_mq_delay_run_hw_queue() disables preemption to get a stable
current CPU number and then invokes __blk_mq_run_hw_queue() if the CPU
number is part the mask.

__blk_mq_run_hw_queue() acquires a spin_lock_t which is a sleeping lock
on PREEMPT_RT and can't be acquired with disabled preemption.

It is not required for correctness to invoke __blk_mq_run_hw_queue() on
a CPU matching hctx->cpumask. Both (async and direct requests) can run
on a CPU not matching hctx->cpumask.

The CPU mask without disabling preemption and invoking
__blk_mq_run_hw_queue().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/YrLSEiNvagKJaDs5@linutronix.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: bfq: Fix kernel-doc headers
Bart Van Assche [Fri, 17 Jun 2022 21:08:59 +0000 (14:08 -0700)]
block: bfq: Fix kernel-doc headers

Fix the following warnings:

block/bfq-cgroup.c:721: warning: Function parameter or member 'bfqg' not described in '__bfq_bic_change_cgroup'
block/bfq-cgroup.c:721: warning: Excess function parameter 'blkcg' description in '__bfq_bic_change_cgroup'
block/bfq-cgroup.c:870: warning: Function parameter or member 'ioprio_class' not described in 'bfq_reparent_leaf_entity'
block/bfq-cgroup.c:900: warning: Function parameter or member 'ioprio_class' not described in 'bfq_reparent_active_queues'

Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/20220617210859.106623-1-bvanassche@acm.org
2 years agoblock: bfq: Remove an unused function definition
Bart Van Assche [Fri, 17 Jun 2022 20:44:33 +0000 (13:44 -0700)]
block: bfq: Remove an unused function definition

This patch is the result of the analysis of a sparse report.

Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/20220617204433.102022-1-bvanassche@acm.org
2 years agobfq: Remove useless code in bfq_lookup_next_entity
GuoYong Zheng [Fri, 17 Jun 2022 10:28:04 +0000 (18:28 +0800)]
bfq: Remove useless code in bfq_lookup_next_entity

It is no need to judge entity is null or not here,
directly return entity is ok, so remove it.

Signed-off-by: GuoYong Zheng <zhenggy@chinatelecom.cn>
Link: https://lore.kernel.org/r/1655461684-19075-1-git-send-email-zhenggy@chinatelecom.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: move blk_queue_get_max_sectors to blk.h
Christoph Hellwig [Tue, 14 Jun 2022 09:09:34 +0000 (11:09 +0200)]
block: move blk_queue_get_max_sectors to blk.h

blk_queue_get_max_sectors is private to the block layer, so move it out
of blkdev.h.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220614090934.570632-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: fold blk_max_size_offset into get_max_io_size
Christoph Hellwig [Tue, 14 Jun 2022 09:09:33 +0000 (11:09 +0200)]
block: fold blk_max_size_offset into get_max_io_size

Now that blk_max_size_offset has a single caller left, fold it into that
and clean up the naming convention for the local variables there.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Pankaj Raghav <p.raghav@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220614090934.570632-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: cleanup variable naming in get_max_io_size
Christoph Hellwig [Tue, 14 Jun 2022 09:09:32 +0000 (11:09 +0200)]
block: cleanup variable naming in get_max_io_size

get_max_io_size has a very odd choice of variables names and
initialization patterns.  Switch to more descriptive names and more
clear initialization of them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220614090934.570632-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: open code blk_max_size_offset in blk_rq_get_max_sectors
Christoph Hellwig [Tue, 14 Jun 2022 09:09:31 +0000 (11:09 +0200)]
block: open code blk_max_size_offset in blk_rq_get_max_sectors

blk_rq_get_max_sectors always uses q->limits.chunk_sectors as the
chunk_sectors argument, and already checks for max_sectors through the
call to blk_queue_get_max_sectors.  That means much of
blk_max_size_offset is not needed and open coding it simplifies the code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220614090934.570632-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agodm: open code blk_max_size_offset in max_io_len
Christoph Hellwig [Tue, 14 Jun 2022 09:09:30 +0000 (11:09 +0200)]
dm: open code blk_max_size_offset in max_io_len

max_io_len always passes an explicitly non-zero chunk_sectors into
blk_max_size_offset.  That means much of blk_max_size_offset is not
needed and can be open coded to simplify the code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
Link: https://lore.kernel.org/r/20220614090934.570632-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: factor out a chunk_size_left helper
Christoph Hellwig [Tue, 14 Jun 2022 09:09:29 +0000 (11:09 +0200)]
block: factor out a chunk_size_left helper

Factor out a helper from blk_max_size_offset so that it can be reused
independently.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Pankaj Raghav <p.raghav@samsung.com>
Link: https://lore.kernel.org/r/20220614090934.570632-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: Make blk_mq_get_sq_hctx() select the proper hardware queue type
Bart Van Assche [Wed, 15 Jun 2022 22:55:49 +0000 (15:55 -0700)]
block: Make blk_mq_get_sq_hctx() select the proper hardware queue type

Since the introduction of blk_mq_get_hctx_type() the operation type in
the second argument of blk_mq_get_hctx_type() matters. The introduction
of blk_mq_get_hctx_type() caused blk_mq_get_sq_hctx() to select a
hardware queue of type HCTX_TYPE_READ instead of HCTX_TYPE_DEFAULT.
Switch to hardware queue type HCTX_TYPE_DEFAULT since HCTX_TYPE_READ
should only be used for read requests.

Cc: Ming Lei <ming.lei@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220615225549.1054905-4-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: Rename a blk_mq_map_queue() argument
Bart Van Assche [Wed, 15 Jun 2022 22:55:48 +0000 (15:55 -0700)]
block: Rename a blk_mq_map_queue() argument

Before the introduction of blk_mq_get_hctx_type(), blk_mq_map_queue()
only used the flags from its second argument. Since the introduction of
blk_mq_get_hctx_type(), blk_mq_map_queue() uses both the operation and
the flags encoded in that argument. Rename the second argument of
blk_mq_map_queue() to make this clear.

Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220615225549.1054905-3-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblk-iocost: Simplify ioc_rqos_done()
Bart Van Assche [Wed, 15 Jun 2022 22:55:47 +0000 (15:55 -0700)]
blk-iocost: Simplify ioc_rqos_done()

Leave out the superfluous "& REQ_OP_MASK" code. The definition of req_op()
shows that that code is superfluous:

 #define req_op(req) ((req)->cmd_flags & REQ_OP_MASK)

Compile-tested only.

Cc: Tejun Heo <tj@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220615225549.1054905-2-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: Directly use ida_alloc()/free()
Bo Liu [Wed, 15 Jun 2022 08:18:16 +0000 (04:18 -0400)]
block: Directly use ida_alloc()/free()

Use ida_alloc()/ida_free() instead of
ida_simple_get()/ida_simple_remove().
The latter is deprecated and more verbose.

Signed-off-by: Bo Liu <liubo03@inspur.com>
Reviewed-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20220615081816.4342-1-liubo03@inspur.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoiomap: add support for dma aligned direct-io
Keith Busch [Fri, 10 Jun 2022 19:58:30 +0000 (12:58 -0700)]
iomap: add support for dma aligned direct-io

Use the address alignment requirements from the block_device for direct
io instead of requiring addresses be aligned to the block size.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-12-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: relax direct io memory alignment
Keith Busch [Fri, 10 Jun 2022 19:58:29 +0000 (12:58 -0700)]
block: relax direct io memory alignment

Use the address alignment requirements from the block_device for direct
io instead of requiring addresses be aligned to the block size. User
space can discover the alignment requirements from the dma_alignment
queue attribute.

User space can specify any hardware compatible DMA offset for each
segment, but every segment length is still required to be a multiple of
the block size.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-11-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: introduce bdev_iter_is_aligned helper
Keith Busch [Fri, 10 Jun 2022 19:58:28 +0000 (12:58 -0700)]
block: introduce bdev_iter_is_aligned helper

Provide a convenient function for this repeatable coding pattern.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-10-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoiov: introduce iov_iter_aligned
Keith Busch [Fri, 10 Jun 2022 19:58:27 +0000 (12:58 -0700)]
iov: introduce iov_iter_aligned

The existing iov_iter_alignment() function returns the logical OR of
address and length. For cases where address and length need to be
considered separately, introduce a helper function that a caller can
specificy length and address masks that indicate if the iov is
unaligned.

Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-9-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock/bounce: count bytes instead of sectors
Keith Busch [Fri, 10 Jun 2022 19:58:26 +0000 (12:58 -0700)]
block/bounce: count bytes instead of sectors

Individual bv_len's may not be a sector size.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Pankaj Raghav <p.raghav@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-8-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock/merge: count bytes instead of sectors
Keith Busch [Fri, 10 Jun 2022 19:58:25 +0000 (12:58 -0700)]
block/merge: count bytes instead of sectors

Individual bv_len's may not be a sector size.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220610195830.3574005-7-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: add a helper function for dio alignment
Keith Busch [Fri, 10 Jun 2022 19:58:24 +0000 (12:58 -0700)]
block: add a helper function for dio alignment

This will make it easier to add more complex acceptable alignment
criteria in the future.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-6-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: introduce bdev_dma_alignment helper
Keith Busch [Fri, 10 Jun 2022 19:58:23 +0000 (12:58 -0700)]
block: introduce bdev_dma_alignment helper

Preparing for upcoming dma_alignment users that have a block_device, but
don't need the request_queue.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-5-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: export dma_alignment attribute
Keith Busch [Fri, 10 Jun 2022 19:58:22 +0000 (12:58 -0700)]
block: export dma_alignment attribute

User space may want to know how to align their buffers to avoid
bouncing. Export the queue attribute.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-4-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock/bio: remove duplicate append pages code
Keith Busch [Fri, 10 Jun 2022 19:58:21 +0000 (12:58 -0700)]
block/bio: remove duplicate append pages code

The getting pages setup for zone append and normal IO are identical. Use
common code for each.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220610195830.3574005-3-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: fix infinite loop for invalid zone append
Keith Busch [Fri, 10 Jun 2022 19:58:20 +0000 (12:58 -0700)]
block: fix infinite loop for invalid zone append

Returning 0 early from __bio_iov_append_get_pages() for the
max_append_sectors warning just creates an infinite loop since 0 means
success, and the bio will never fill from the unadvancing iov_iter. We
could turn the return into an error value, but it will already be turned
into an error value later on, so just remove the warning. Clearly no one
ever hit it anyway.

Fixes: 0512a75b98f84 ("block: Introduce REQ_OP_ZONE_APPEND")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220610195830.3574005-2-kbusch@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoLinux 5.19-rc4
Linus Torvalds [Sun, 26 Jun 2022 21:22:10 +0000 (14:22 -0700)]
Linux 5.19-rc4

2 years agoMerge tag 'soc-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Sun, 26 Jun 2022 21:12:56 +0000 (14:12 -0700)]
Merge tag 'soc-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "A number of fixes have accumulated, but they are largely for harmless
  issues:

   - Several OF node leak fixes

   - A fix to the Exynos7885 UART clock description

   - DTS fixes to prevent boot failures on TI AM64 and J721s2

   - Bus probe error handling fixes for Baikal-T1

   - A fixup to the way STM32 SoCs use separate dts files for different
     firmware stacks

   - Multiple code fixes for Arm SCMI firmware, all dealing with
     robustness of the implementation

   - Multiple NXP i.MX devicetree fixes, addressing incorrect data in DT
     nodes

   - Three updates to the MAINTAINERS file, including Florian Fainelli
     taking over BCM283x/BCM2711 (Raspberry Pi) from Nicolas Saenz
     Julienne"

* tag 'soc-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits)
  ARM: dts: aspeed: nuvia: rename vendor nuvia to qcom
  arm: mach-spear: Add missing of_node_put() in time.c
  ARM: cns3xxx: Fix refcount leak in cns3xxx_init
  MAINTAINERS: Update email address
  arm64: dts: ti: k3-am64-main: Remove support for HS400 speed mode
  arm64: dts: ti: k3-j721s2: Fix overlapping GICD memory region
  ARM: dts: bcm2711-rpi-400: Fix GPIO line names
  bus: bt1-axi: Don't print error on -EPROBE_DEFER
  bus: bt1-apb: Don't print error on -EPROBE_DEFER
  ARM: Fix refcount leak in axxia_boot_secondary
  ARM: dts: stm32: move SCMI related nodes in a dedicated file for stm32mp15
  soc: imx: imx8m-blk-ctrl: fix display clock for LCDIF2 power domain
  ARM: dts: imx6qdl-colibri: Fix capacitive touch reset polarity
  ARM: dts: imx6qdl: correct PU regulator ramp delay
  firmware: arm_scmi: Fix incorrect error propagation in scmi_voltage_descriptors_get
  firmware: arm_scmi: Avoid using extended string-buffers sizes if not necessary
  firmware: arm_scmi: Fix SENSOR_AXIS_NAME_GET behaviour when unsupported
  ARM: dts: imx7: Move hsic_phy power domain to HSIC PHY node
  soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe
  MAINTAINERS: Update BCM2711/BCM2835 maintainer
  ...

2 years agoMerge tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Sun, 26 Jun 2022 21:00:55 +0000 (14:00 -0700)]
Merge tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
 "Minor things, mainly - mailmap updates, MAINTAINERS updates, etc.

  Fixes for this merge window:

   - fix for a damon boot hang, from SeongJae

   - fix for a kfence warning splat, from Jason Donenfeld

   - fix for zero-pfn pinning, from Alex Williamson

   - fix for fallocate hole punch clearing, from Mike Kravetz

  Fixes for previous releases:

   - fix for a performance regression, from Marcelo

   - fix for a hwpoisining BUG from zhenwei pi"

* tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mailmap: add entry for Christian Marangi
  mm/memory-failure: disable unpoison once hw error happens
  hugetlbfs: zero partial pages during fallocate hole punch
  mm: memcontrol: reference to tools/cgroup/memcg_slabinfo.py
  mm: re-allow pinning of zero pfns
  mm/kfence: select random number before taking raw lock
  MAINTAINERS: add maillist information for LoongArch
  MAINTAINERS: update MM tree references
  MAINTAINERS: update Abel Vesa's email
  MAINTAINERS: add MEMORY HOT(UN)PLUG section and add David as reviewer
  MAINTAINERS: add Miaohe Lin as a memory-failure reviewer
  mailmap: add alias for jarkko@profian.com
  mm/damon/reclaim: schedule 'damon_reclaim_timer' only after 'system_wq' is initialized
  kthread: make it clear that kthread_create_on_node() might be terminated by any fatal signal
  mm: lru_cache_disable: use synchronize_rcu_expedited
  mm/page_isolation.c: fix one kernel-doc comment

2 years agoMerge tag 'perf-tools-fixes-for-v5.19-2022-06-26' of git://git.kernel.org/pub/scm...
Linus Torvalds [Sun, 26 Jun 2022 19:12:25 +0000 (12:12 -0700)]
Merge tag 'perf-tools-fixes-for-v5.19-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Enable ignore_missing_thread in 'perf stat', enabling counting with
   '--pid' when threads disappear during counting session setup

 - Adjust output data offset for backward compatibility in 'perf inject'

 - Fix missing free in copy_kcore_dir() in 'perf inject'

 - Fix caching files with a wrong build ID

 - Sync drm, cpufeatures, vhost and svn headers with the kernel

* tag 'perf-tools-fixes-for-v5.19-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  tools headers UAPI: Synch KVM's svm.h header with the kernel
  tools include UAPI: Sync linux/vhost.h with the kernel sources
  perf stat: Enable ignore_missing_thread
  perf inject: Adjust output data offset for backward compatibility
  perf trace beauty: Fix generation of errno id->str table on ALT Linux
  perf build-id: Fix caching files with a wrong build ID
  tools headers cpufeatures: Sync with the kernel sources
  tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
  perf inject: Fix missing free in copy_kcore_dir()

2 years agoMerge tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sun, 26 Jun 2022 17:11:36 +0000 (10:11 -0700)]
Merge tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - zoned relocation fixes:
      - fix critical section end for extent writeback, this could lead
        to out of order write
      - prevent writing to previous data relocation block group if space
        gets low

 - reflink fixes:
      - fix race between reflinking and ordered extent completion
      - proper error handling when block reserve migration fails
      - add missing inode iversion/mtime/ctime updates on each iteration
        when replacing extents

 - fix deadlock when running fsync/fiemap/commit at the same time

 - fix false-positive KCSAN report regarding pid tracking for read locks
   and data race

 - minor documentation update and link to new site

* tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Documentation: update btrfs list of features and link to readthedocs.io
  btrfs: fix deadlock with fsync+fiemap+transaction commit
  btrfs: don't set lock_owner when locking extent buffer for reading
  btrfs: zoned: fix critical section of relocation inode writeback
  btrfs: zoned: prevent allocation from previous data relocation BG
  btrfs: do not BUG_ON() on failure to migrate space when replacing extents
  btrfs: add missing inode updates on each iteration when replacing extents
  btrfs: fix race between reflinking and ordered extent completion

2 years agoMerge tag 'dma-mapping-5.19-2022-06-26' of git://git.infradead.org/users/hch/dma...
Linus Torvalds [Sun, 26 Jun 2022 17:01:40 +0000 (10:01 -0700)]
Merge tag 'dma-mapping-5.19-2022-06-26' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fix from Christoph Hellwig:

 - pass the correct size to dma_set_encrypted() when freeing memory
   (Dexuan Cui)

* tag 'dma-mapping-5.19-2022-06-26' of git://git.infradead.org/users/hch/dma-mapping:
  dma-direct: use the correct size for dma_set_encrypted()

2 years agoMerge tag 'for-5.19/fbdev-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Sun, 26 Jun 2022 16:13:51 +0000 (09:13 -0700)]
Merge tag 'for-5.19/fbdev-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev fixes from Helge Deller:
 "Two bug fixes for the pxa3xx and intelfb drivers:

   - pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write

   - intelfb: Initialize value of stolen size

  The other changes are small cleanups, simplifications and
  documentation updates to the cirrusfb, skeletonfb, omapfb,
  intelfb, au1100fb and simplefb drivers"

* tag 'for-5.19/fbdev-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  video: fbdev: omap: Remove duplicate 'the' in comment
  video: fbdev: omapfb: Align '*' in comment
  video: fbdev: simplefb: Check before clk_put() not needed
  video: fbdev: au1100fb: Drop unnecessary NULL ptr check
  video: fbdev: pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write
  video: fbdev: skeletonfb: Convert to generic power management
  video: fbdev: cirrusfb: Remove useless reference to PCI power management
  video: fbdev: intelfb: Initialize value of stolen size
  video: fbdev: intelfb: Use aperture size from pci_resource_len
  video: fbdev: skeletonfb: Fix syntax errors in comments

2 years agoMerge tag 'for-5.19/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Sun, 26 Jun 2022 16:08:30 +0000 (09:08 -0700)]
Merge tag 'for-5.19/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc architecture fixes from Helge Deller:

 - enable ARCH_HAS_STRICT_MODULE_RWX to prevent a boot crash on c8000
   machines

 - flush all mappings of a shared anonymous page on PA8800/8900 machines
   via flushing the whole data cache. This may slow down such machines
   but makes sure that the cache is consistent

 - Fix duplicate definition build error regarding fb_is_primary_device()

* tag 'for-5.19/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Enable ARCH_HAS_STRICT_MODULE_RWX
  parisc: Fix flush_anon_page on PA8800/PA8900
  parisc: align '*' in comment in math-emu code
  parisc/stifb: Fix fb_is_primary_device() only available with CONFIG_FB_STI

2 years agoMerge tag 'xtensa-20220626' of https://github.com/jcmvbkbc/linux-xtensa
Linus Torvalds [Sun, 26 Jun 2022 15:59:21 +0000 (08:59 -0700)]
Merge tag 'xtensa-20220626' of https://github.com/jcmvbkbc/linux-xtensa

Pull xtensa fixes from Max Filippov:

 - fix OF reference leaks in xtensa arch code

 - replace '.bss' with '.section .bss' to fix entry.S build with old
   assembler

* tag 'xtensa-20220626' of https://github.com/jcmvbkbc/linux-xtensa:
  xtensa: change '.bss' to '.section .bss'
  xtensa: xtfpga: Fix refcount leak bug in setup
  xtensa: Fix refcount leak bug in time.c

2 years agoMerge tag 'powerpc-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Sun, 26 Jun 2022 15:53:20 +0000 (08:53 -0700)]
Merge tag 'powerpc-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - A fix for a CMA change that broke booting guests with > 2G RAM on
   Power8 hosts.

 - Fix the RTAS call filter to allow a special case that applications
   rely on.

 - A change to our execve path, to make the execve syscall exit
   tracepoint work.

 - Three fixes to wire up our various RNGs earlier in boot so they're
   available for use in the initial seeding in random_init().

 - A build fix for when KASAN is enabled along with
   STRUCTLEAK_BYREF_ALL.

Thanks to Andrew Donnellan, Aneesh Kumar K.V, Christophe Leroy, Jason
Donenfeld, Nathan Lynch, Naveen N. Rao, Sathvika Vasireddy, Sumit
Dubey2, Tyrel Datwyler, and Zi Yan.

* tag 'powerpc-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powernv: wire up rng during setup_arch
  powerpc/prom_init: Fix build failure with GCC_PLUGIN_STRUCTLEAK_BYREF_ALL and KASAN
  powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address
  powerpc: Enable execve syscall exit tracepoint
  powerpc/pseries: wire up rng during setup_arch()
  powerpc/microwatt: wire up rng during setup_arch()
  powerpc/mm: Move CMA reservations after initmem_init()

2 years agoMerge tag 'kbuild-fixes-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 26 Jun 2022 15:47:28 +0000 (08:47 -0700)]
Merge tag 'kbuild-fixes-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix modpost to detect EXPORT_SYMBOL marked as __init or__exit

 - Update the supported arch list in the LLVM document

 - Avoid the second link of vmlinux for CONFIG_TRIM_UNUSED_KSYMS

 - Avoid false __KSYM___this_module define in include/generated/autoksyms.h

* tag 'kbuild-fixes-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: Ignore __this_module in gen_autoksyms.sh
  kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS (2nd attempt)
  Documentation/llvm: Update Supported Arch table
  modpost: fix section mismatch check for exported init/exit sections

2 years agoMerge tag 'exfat-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/linki...
Linus Torvalds [Sun, 26 Jun 2022 15:41:04 +0000 (08:41 -0700)]
Merge tag 'exfat-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

Pull exfat fix from Namjae Jeon:

 - Use updated exfat_chain directly instead of snapshot values in
   rename.

* tag 'exfat-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
  exfat: use updated exfat_chain directly during renaming

2 years agoMerge tag '5.19-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sun, 26 Jun 2022 15:34:52 +0000 (08:34 -0700)]
Merge tag '5.19-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs client fixes from Steve French:
 "Fixes addressing important multichannel, and reconnect issues.

  Multichannel mounts when the server network interfaces changed, or ip
  addresses changed, uncovered problems, especially in reconnect, but
  the patches for this were held up until recently due to some lock
  conflicts that are now addressed.

  Included in this set of fixes:

   - three fixes relating to multichannel reconnect, dynamically
     adjusting the list of server interfaces to avoid problems during
     reconnect

   - a lock conflict fix related to the above

   - two important fixes for negotiate on secondary channels (null
     netname can unintentionally cause multichannel to be disabled to
     some servers)

   - a reconnect fix (reporting incorrect IP address in some cases)"

* tag '5.19-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: update cifs_ses::ip_addr after failover
  cifs: avoid deadlocks while updating iface
  cifs: periodically query network interfaces from server
  cifs: during reconnect, update interface if necessary
  cifs: change iface_list from array to sorted linked list
  smb3: use netname when available on secondary channels
  smb3: fix empty netname context on secondary channels

2 years agotools headers UAPI: Synch KVM's svm.h header with the kernel
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 23:04:45 +0000 (20:04 -0300)]
tools headers UAPI: Synch KVM's svm.h header with the kernel

To pick up the changes from:

  d5af44dde5461d12 ("x86/sev: Provide support for SNP guest request NAEs")
  0afb6b660a6b58cb ("x86/sev: Use SEV-SNP AP creation to start secondary CPUs")
  dc3f3d2474b80eae ("x86/mm: Validate memory when changing the C-bit")
  cbd3d4f7c4e5a93e ("x86/sev: Check SEV-SNP features support")

That gets these new SVM exit reasons:

+       { SVM_VMGEXIT_PSC,              "vmgexit_page_state_change" }, \
+       { SVM_VMGEXIT_GUEST_REQUEST,    "vmgexit_guest_request" }, \
+       { SVM_VMGEXIT_EXT_GUEST_REQUEST, "vmgexit_ext_guest_request" }, \
+       { SVM_VMGEXIT_AP_CREATION,      "vmgexit_ap_creation" }, \
+       { SVM_VMGEXIT_HV_FEATURES,      "vmgexit_hypervisor_feature" }, \

Addressing this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h'
  diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h

This causes these changes:

  CC      /tmp/build/perf-urgent/arch/x86/util/kvm-stat.o
  LD      /tmp/build/perf-urgent/arch/x86/util/perf-in.o
  LD      /tmp/build/perf-urgent/arch/x86/perf-in.o
  LD      /tmp/build/perf-urgent/arch/perf-in.o
  LD      /tmp/build/perf-urgent/perf-in.o
  LINK    /tmp/build/perf-urgent/perf

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agotools include UAPI: Sync linux/vhost.h with the kernel sources
Arnaldo Carvalho de Melo [Tue, 14 Apr 2020 12:12:55 +0000 (09:12 -0300)]
tools include UAPI: Sync linux/vhost.h with the kernel sources

To get the changes in:

  84d7c8fd3aade2fe ("vhost-vdpa: introduce uAPI to set group ASID")
  2d1fcb7758e49fd9 ("vhost-vdpa: uAPI to get virtqueue group id")
  a0c95f201170bd55 ("vhost-vdpa: introduce uAPI to get the number of address spaces")
  3ace88bd37436abc ("vhost-vdpa: introduce uAPI to get the number of virtqueue groups")
  175d493c3c3e09a3 ("vhost: move the backend feature bits to vhost_types.h")

Silencing this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
  diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h

To pick up these changes and support them:

  $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before
  $ cp include/uapi/linux/vhost.h tools/include/uapi/linux/vhost.h
  $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after
  $ diff -u before after
  --- before 2022-06-26 12:04:35.982003781 -0300
  +++ after 2022-06-26 12:04:43.819972476 -0300
  @@ -28,6 +28,7 @@
    [0x74] = "VDPA_SET_CONFIG",
    [0x75] = "VDPA_SET_VRING_ENABLE",
    [0x77] = "VDPA_SET_CONFIG_CALL",
  + [0x7C] = "VDPA_SET_GROUP_ASID",
   };
   static const char *vhost_virtio_ioctl_read_cmds[] = {
    [0x00] = "GET_FEATURES",
  @@ -39,5 +40,8 @@
    [0x76] = "VDPA_GET_VRING_NUM",
    [0x78] = "VDPA_GET_IOVA_RANGE",
    [0x79] = "VDPA_GET_CONFIG_SIZE",
  + [0x7A] = "VDPA_GET_AS_NUM",
  + [0x7B] = "VDPA_GET_VRING_GROUP",
    [0x80] = "VDPA_GET_VQS_COUNT",
  + [0x81] = "VDPA_GET_GROUP_NUM",
   };
  $

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Gautam Dawar <gautam.dawar@xilinx.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/Yrh3xMYbfeAD0MFL@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf stat: Enable ignore_missing_thread
Gang Li [Wed, 22 Jun 2022 03:00:37 +0000 (11:00 +0800)]
perf stat: Enable ignore_missing_thread

perf already support ignore_missing_thread for -p, but not yet
applied to `perf stat -p <pid>`. This patch enables ignore_missing_thread
for `perf stat -p <pid>`.

Committer notes:

And here is a refresher about the 'ignore_missing_thread' knob, from a
previous patch using it:

  ca8000684ec4e66f ("perf evsel: Enable ignore_missing_thread for pid option")

  ---
    While monitoring a multithread process with pid option, perf sometimes
    may return sys_perf_event_open failure with 3(No such process) if any of
    the process's threads die before we open the event. However, we want
    perf continue monitoring the remaining threads and do not exit with
    error.
  ---

Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220622030037.15005-1-ligang.bdlg@bytedance.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf inject: Adjust output data offset for backward compatibility
Raul Silvera [Tue, 21 Jun 2022 15:27:25 +0000 (15:27 +0000)]
perf inject: Adjust output data offset for backward compatibility

When 'perf inject' creates a new file, it reuses the data offset from
the input file. If there has been a change on the size of the header, as
happened in v5.12 -> v5.13, the new offsets will be wrong, resulting in
a corrupted output file.

This change adds the function perf_session__data_offset to compute the
data offset based on the current header size, and uses that instead of
the offset from the original input file.

Signed-off-by: Raul Silvera <rsilvera@google.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Colin Ian King <colin.king@intel.com>
Cc: Dave Marchevsky <davemarchevsky@fb.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220621152725.2668041-1-rsilvera@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf trace beauty: Fix generation of errno id->str table on ALT Linux
Arnaldo Carvalho de Melo [Tue, 21 Jun 2022 15:34:37 +0000 (12:34 -0300)]
perf trace beauty: Fix generation of errno id->str table on ALT Linux

For some reason using:

         cat <<EoFuncBegin
  static const char *errno_to_name__$arch(int err)
  {
         switch (err) {
  EoFuncBegin

In tools/perf/trace/beauty/arch_errno_names.sh isn't working on ALT
Linux sisyphus (development version), which could be some distro
specific glitch, so just get this done in an alternative way that works
everywhere while giving notice to the people working on that distro to
try and figure our what really took place.

Cc: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf build-id: Fix caching files with a wrong build ID
Adrian Hunter [Tue, 21 Jun 2022 12:51:44 +0000 (15:51 +0300)]
perf build-id: Fix caching files with a wrong build ID

Build ID events associate a file name with a build ID.  However, when
using perf inject, there is no guarantee that the file on the current
machine at the current time has that build ID. Fix by comparing the
build IDs and skip adding to the cache if they are different.

Example:

  $ echo "int main() {return 0;}" > prog.c
  $ gcc -o prog prog.c
  $ perf record --buildid-all ./prog
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.019 MB perf.data ]
  $ file-buildid() { file $1 | awk -F= '{print $2}' | awk -F, '{print $1}' ; }
  $ file-buildid prog
  444ad9be165d8058a48ce2ffb4e9f55854a3293e
  $ file-buildid ~/.debug/$(pwd)/prog/444ad9be165d8058a48ce2ffb4e9f55854a3293e/elf
  444ad9be165d8058a48ce2ffb4e9f55854a3293e
  $ echo "int main() {return 1;}" > prog.c
  $ gcc -o prog prog.c
  $ file-buildid prog
  885524d5aaa24008a3e2b06caa3ea95d013c0fc5

Before:

  $ perf buildid-cache --purge $(pwd)/prog
  $ perf inject -i perf.data -o junk
  $ file-buildid ~/.debug/$(pwd)/prog/444ad9be165d8058a48ce2ffb4e9f55854a3293e/elf
  885524d5aaa24008a3e2b06caa3ea95d013c0fc5
  $

After:

  $ perf buildid-cache --purge $(pwd)/prog
  $ perf inject -i perf.data -o junk
  $ file-buildid ~/.debug/$(pwd)/prog/444ad9be165d8058a48ce2ffb4e9f55854a3293e/elf

  $

Fixes: 454c407ec17a0c63 ("perf: add perf-inject builtin")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
Link: https://lore.kernel.org/r/20220621125144.5623-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agotools headers cpufeatures: Sync with the kernel sources
Arnaldo Carvalho de Melo [Thu, 1 Jul 2021 16:39:15 +0000 (13:39 -0300)]
tools headers cpufeatures: Sync with the kernel sources

To pick the changes from:

  d6d0c7f681fda1d0 ("x86/cpufeatures: Add PerfMonV2 feature bit")
  296d5a17e793956f ("KVM: SEV-ES: Use V_TSC_AUX if available instead of RDTSC/MSR_TSC_AUX intercepts")
  f30903394eb62316 ("x86/cpufeatures: Add virtual TSC_AUX feature bit")
  8ad7e8f696951f19 ("x86/fpu/xsave: Support XSAVEC in the kernel")
  59bd54a84d15e933 ("x86/tdx: Detect running as a TDX guest in early boot")
  a77d41ac3a0f41c8 ("x86/cpufeatures: Add AMD Fam19h Branch Sampling feature")

This only causes these perf files to be rebuilt:

  CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
  CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o

And addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
  diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Babu Moger <babu.moger@amd.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/YrDkgmwhLv+nKeOo@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agotools headers UAPI: Sync drm/i915_drm.h with the kernel sources
Arnaldo Carvalho de Melo [Sat, 13 Nov 2021 14:08:31 +0000 (11:08 -0300)]
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources

To pick up the changes in:

  ecf8eca51f33dbfd ("drm/i915/xehp: Add compute engine ABI")
  991b4de3275728fd ("drm/i915/uapi: Add kerneldoc for engine class enum")
  c94fde8f516610b0 ("drm/i915/uapi: Add DRM_I915_QUERY_GEOMETRY_SUBSLICES")
  1c671ad753dbbf5f ("drm/i915/doc: Link query items to their uapi structs")
  a2e5402691e23269 ("drm/i915/doc: Convert perf UAPI comments to kerneldoc")
  462ac1cdf4d7acf1 ("drm/i915/doc: Convert drm_i915_query_topology_info comment to kerneldoc")
  034d47b25b2ce627 ("drm/i915/uapi: Document DRM_I915_QUERY_HWCONFIG_BLOB")
  78e1fb3112c0ac44 ("drm/i915/uapi: Add query for hwconfig blob")

That don't add any new ioctl, so no changes in tooling.

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
  diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h

Cc: John Harrison <John.C.Harrison@intel.com>
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://lore.kernel.org/lkml/YrDi4ALYjv9Mdocq@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf inject: Fix missing free in copy_kcore_dir()
Adrian Hunter [Mon, 20 Jun 2022 10:39:04 +0000 (13:39 +0300)]
perf inject: Fix missing free in copy_kcore_dir()

Free string allocated by asprintf().

Fixes: d8fc08550929bb84 ("perf inject: Keep a copy of kcore_dir")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220620103904.7960-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoparisc: Enable ARCH_HAS_STRICT_MODULE_RWX
Helge Deller [Sun, 26 Jun 2022 09:50:43 +0000 (11:50 +0200)]
parisc: Enable ARCH_HAS_STRICT_MODULE_RWX

Fix a boot crash on a c8000 machine as reported by Dave.  Basically it changes
patch_map() to return an alias mapping to the to-be-patched code in order to
prevent writing to write-protected memory.

Signed-off-by: Helge Deller <deller@gmx.de>
Suggested-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v5.2+
Link: https://lore.kernel.org/all/e8ec39e8-25f8-e6b4-b7ed-4cb23efc756e@bell.net/
2 years agoparisc: Fix flush_anon_page on PA8800/PA8900
John David Anglin [Sat, 18 Jun 2022 15:14:34 +0000 (15:14 +0000)]
parisc: Fix flush_anon_page on PA8800/PA8900

Anonymous pages are allocated with the shared mappings colouring,
SHM_COLOUR. Since the alias boundary on machines with PA8800 and
PA8900 processors is unknown, flush_user_cache_page() might not
flush all mappings of a shared anonymous page. Flushing the whole
data cache flushes all mappings.

This won't fix all coherency issues with shared mappings but it
seems to work well in practice.  I haven't seen any random memory
faults in almost a month on a rp3440 running as a debian buildd
machine.

There is a small preformance hit.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v5.18+
2 years agoparisc: align '*' in comment in math-emu code
Jiang Jian [Tue, 21 Jun 2022 06:38:23 +0000 (14:38 +0800)]
parisc: align '*' in comment in math-emu code

Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2 years agokbuild: Ignore __this_module in gen_autoksyms.sh
Sami Tolvanen [Thu, 16 Jun 2022 19:57:59 +0000 (19:57 +0000)]
kbuild: Ignore __this_module in gen_autoksyms.sh

Module object files can contain an undefined reference to __this_module,
which isn't resolved until we link the final .ko. The kernel doesn't
export this symbol, so ignore it in gen_autoksyms.sh.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Steve Muckle <smuckle@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Ramji Jiyani <ramjiyani@google.com>
2 years agokbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS (2nd attempt)
Masahiro Yamada [Thu, 23 Jun 2022 19:11:47 +0000 (04:11 +0900)]
kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS (2nd attempt)

If CONFIG_TRIM_UNUSED_KSYMS is enabled and the kernel is built from
a pristine state, the vmlinux is linked twice.

Commit 3fdc7d3fe4c0 ("kbuild: link vmlinux only once for
CONFIG_TRIM_UNUSED_KSYMS") explains why this happens, but it did not fix
the issue at all.

Now I realized I had applied a wrong patch.

In v1 patch [1], the autoksyms_recursive target correctly recurses to
"$(MAKE) -f $(srctree)/Makefile autoksyms_recursive".

In v2 patch [2], I accidentally dropped the diff line, and it recurses to
"$(MAKE) -f $(srctree)/Makefile vmlinux".

Restore the code I intended in v1.

[1]: https://lore.kernel.org/linux-kbuild/1521045861-22418-8-git-send-email-yamada.masahiro@socionext.com/
[2]: https://lore.kernel.org/linux-kbuild/1521166725-24157-8-git-send-email-yamada.masahiro@socionext.com/

Fixes: 3fdc7d3fe4c0 ("kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2 years agoMerge tag 'char-misc-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Sat, 25 Jun 2022 17:07:36 +0000 (10:07 -0700)]
Merge tag 'char-misc-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull IIO driver fixes from Greg KH:
 "Here are a set of IIO driver fixes for 5.19-rc4. Jonathan said it best
  in his pull request to me, so I'll just quote it here below, as that's
  the only changes we have right now for the char-misc driver tree:

  testing:
      - Fix a missing MODULE_LICENSE() warning by restricting possible
        build configs.

  Various drivers:
      - Fix ordering of iio_get_trigger() being called before
        iio_trigger_register()

  adi,admv1014:
      - Fix dubious x & !y warning.

  adi,axi-adc:
      - Fix missing of_node_put() in error and normal paths.

  aspeed,adc:
      - Add missing of_node_put()

  fsl,mma8452:
      - Fix broken probing from device tree.
      - Drop check on return value of i2c write to device to cause reset
        as ACK will be missing (device reset before sending it).

  fsl,vf610:
      - Fix documentation of in_conversion_mode ABI.

  iio-trig-sysfs:
      - Ensure irq work has finished before freeing the trigger.

  invensense,mpu3050:
      - Disable regulators in error path.

  invensense,icm42600:
      - Fix collision of enum value of 0 with error path where 0 is no
        match.

  renesas,rzg2l_Adc:
      - Add missing fwnode_handle_put() in error path.

  rescale:
      - Fix a boolean logic bug for detection of raw + scale affecting
        an obscure corner case.

  semtech,sx9324:
      - Check return value of read of pin_defs

  st,stm32-adc:
      - Fix interaction across ADC instances for some supported devices.
      - Drop false spurious IRQ messages.
      - Fix calibration value handling. If we can't calibrate don't
        expose the vref_int channel.
      - Fix maximum clock rate for stm32pm15x

  ti,ads131e08:
      - Add missing fwnode_handle_put() in error paths.

  xilinx,ams:
      - Fix variable checked for error from platform_get_irq()

  x-powers,axp288:
      - Overide TS_PIN bias current for boards where it is not correctly
        initialized.

  yamaha,yas530:
      - Fix inverted check on calibration data being all zeros.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'char-misc-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (26 commits)
  iio:proximity:sx9324: Check ret value of device_property_read_u32_array()
  iio: accel: mma8452: ignore the return value of reset operation
  iio: adc: stm32: fix maximum clock rate for stm32mp15x
  iio: adc: stm32: fix vrefint wrong calibration value handling
  iio: imu: inv_icm42600: Fix broken icm42600 (chip id 0 value)
  iio: adc: vf610: fix conversion mode sysfs node name
  iio: adc: adi-axi-adc: Fix refcount leak in adi_axi_adc_attach_client
  iio: test: fix missing MODULE_LICENSE for IIO_RESCALE=m
  iio:humidity:hts221: rearrange iio trigger get and register
  iio:chemical:ccs811: rearrange iio trigger get and register
  iio:accel:mxc4005: rearrange iio trigger get and register
  iio:accel:kxcjk-1013: rearrange iio trigger get and register
  iio:accel:bma180: rearrange iio trigger get and register
  iio: afe: rescale: Fix boolean logic bug
  iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data
  iio: adc: stm32: Fix IRQs on STM32F4 by removing custom spurious IRQs message
  iio: adc: stm32: Fix ADCs iteration in irq handler
  iio: adc: ti-ads131e08: add missing fwnode_handle_put() in ads131e08_alloc_channels()
  iio: adc: rzg2l_adc: add missing fwnode_handle_put() in rzg2l_adc_parse_properties()
  iio: trigger: sysfs: fix use-after-free on remove
  ...

2 years agoMerge tag 'usb-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 25 Jun 2022 17:02:05 +0000 (10:02 -0700)]
Merge tag 'usb-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB driver fixes from Greg KH:
 "Here are some small USB driver fixes and new device ids for 5.19-rc4
  for a few small reported issues. They include:

   - new usb-serial driver ids

   - MAINTAINERS file update to properly catch the USB dts files

   - dt-bindings fixes for reported build warnings

   - xhci driver fixes for reported problems

   - typec Kconfig dependancy fix

   - raw_gadget fuzzing fixes found by syzbot

   - chipidea driver bugfix

   - usb gadget uvc bugfix

  All of these have been in linux-next with no reported issues"

* tag 'usb-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: chipidea: udc: check request status before setting device address
  USB: gadget: Fix double-free bug in raw_gadget driver
  xhci-pci: Allow host runtime PM as default for Intel Meteor Lake xHCI
  xhci-pci: Allow host runtime PM as default for Intel Raptor Lake xHCI
  xhci: turn off port power in shutdown
  xhci: Keep interrupt disabled in initialization until host is running.
  USB: serial: option: add Quectel RM500K module support
  USB: serial: option: add Quectel EM05-G modem
  USB: serial: pl2303: add support for more HXN (G) types
  usb: typec: wcove: Drop wrong dependency to INTEL_SOC_PMIC
  usb: gadget: uvc: fix list double add in uvcg_video_pump
  dt-bindings: usb: ehci: Increase the number of PHYs
  dt-bindings: usb: ohci: Increase the number of PHYs
  usb: gadget: Fix non-unique driver names in raw-gadget driver
  MAINTAINERS: add include/dt-bindings/usb to USB SUBSYSTEM
  USB: serial: option: add Telit LE910Cx 0x1250 composition

2 years agoMerge tag 'loongarch-fixes-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 25 Jun 2022 16:24:59 +0000 (09:24 -0700)]
Merge tag 'loongarch-fixes-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
 "Some bug fixes and a trivial cleanup"

* tag 'loongarch-fixes-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: Make compute_return_era() return void
  LoongArch: Fix wrong fpu version
  LoongArch: Fix EENTRY/MERRENTRY setting in setup_tlb_handler()
  LoongArch: Fix sleeping in atomic context in setup_tlb_handler()
  LoongArch: Fix the _stext symbol address
  LoongArch: Fix the !THP build

2 years agoMerge tag 'f2fs-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeu...
Linus Torvalds [Sat, 25 Jun 2022 16:19:51 +0000 (09:19 -0700)]
Merge tag 'f2fs-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs fixes from Jaegeuk Kim:
 "Some urgent fixes to avoid generating corrupted inodes caused by
  compressed and inline_data files.

  In addition, avoid a wrong error report which prevents a roll-forward
  recovery"

* tag 'f2fs-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: do not count ENOENT for error case
  f2fs: fix iostat related lock protection
  f2fs: attach inline_data after setting compression

2 years agoLoongArch: Make compute_return_era() return void
Tiezhu Yang [Sat, 18 Jun 2022 08:39:11 +0000 (16:39 +0800)]
LoongArch: Make compute_return_era() return void

compute_return_era() always returns 0, make it return void,
and then no need to check its return value for its callers.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2 years agoLoongArch: Fix wrong fpu version
Tiezhu Yang [Sat, 18 Jun 2022 04:50:31 +0000 (12:50 +0800)]
LoongArch: Fix wrong fpu version

According to the configuration information accessible by the CPUCFG
instruction in LoongArch Reference Manual [1], FP_ver is stored in
bit [5: 3] of CPUCFG2, the current code to get fpu version is wrong,
use CPUCFG2_FPVERS to fix it.

[1] https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Fixes: 628c3bb40e9a ("LoongArch: Add boot and setup routines")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2 years agoLoongArch: Fix EENTRY/MERRENTRY setting in setup_tlb_handler()
Huacai Chen [Thu, 23 Jun 2022 08:11:54 +0000 (16:11 +0800)]
LoongArch: Fix EENTRY/MERRENTRY setting in setup_tlb_handler()

setup_tlb_handler() is expected to set per-cpu exception handlers, but
it only set the TLBRENTRY successfully because of copy & paste errors,
so fix it.

Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2 years agoLoongArch: Fix sleeping in atomic context in setup_tlb_handler()
Huacai Chen [Thu, 23 Jun 2022 01:55:42 +0000 (09:55 +0800)]
LoongArch: Fix sleeping in atomic context in setup_tlb_handler()

Since setup_tlb_handler() is executed in atomic context, we should use
GFP_ATOMIC instead of GFP_KERNEL to alloc pages. Otherwise we will get
a "sleeping in atomic context" error:

[    0.013118] BUG: sleeping function called from invalid context at mm/page_alloc.c:5158
[    0.013126] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1
[    0.013131] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.19-rc3+ #1008 1a223086d14d07967cc427f15d52139422271360
[    0.013136] Hardware name: Loongson Loongson-3A5000-7A1000-1w-V0.1-CRB/Loongson-LS3A5000-7A1000-1w-EVB-V1.21, BIOS Loongson-UDK2018-V2.0.04082-beta7 04/27
[    0.013140] Stack : 90000000015fc990 9000000100493c18 9000000000df3370 9000000100490000
[    0.013151]         9000000100493b50 0000000000000000 9000000100493b58 9000000001417ef0
[    0.013160]         900000000199e54e 0000000000000040 9000000100493c18 90000000015f7a98
[    0.013168]         ffffffffffffffff 6de72f8b42179d1e 9000000100403b80 90000000015f7890
[    0.013176]         0000000000000001 00000000fffff175 9000000000eb9860 9000000001530b4b
[    0.013184]         9000000000e99e60 0000000000000013 0000000006ecc000 0000000000000001
[    0.013193]         90000000015f7a98 9000000001417ef0 0000000000000004 0000000000000000
[    0.013201]         0000000000000cc0 0000000000000000 0000000000000001 90000000015fc990
[    0.013209]         9000000000217e74 9000000001603b6b 9000000000208640 0000000000000000
[    0.013217]         00000000000000b0 0000000000000004 0000000000000000 0000000000070000
[    0.013225]         ...
[    0.013229] Call Trace:
[    0.013230] [<9000000000208640>] show_stack+0x4c/0x14c
[    0.013240] [<9000000000df3370>] dump_stack_lvl+0x70/0xac
[    0.013246] [<9000000000270c8c>] ___might_sleep+0x104/0x124
[    0.013253] [<9000000000477e84>] __alloc_pages+0x240/0x464
[    0.013260] [<9000000000214214>] setup_tlb_handler+0x104/0x1e8
[    0.013265] [<9000000000214324>] tlb_init+0x2c/0x3c
[    0.013270] [<9000000000208b74>] per_cpu_trap_init+0xec/0x108
[    0.013275] [<9000000000202850>] cpu_probe+0x400/0x8a4
[    0.013279] [<900000000020d160>] start_secondary+0x5c/0x3d4

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2 years agoLoongArch: Fix the _stext symbol address
Huacai Chen [Sat, 25 Jun 2022 08:55:41 +0000 (16:55 +0800)]
LoongArch: Fix the _stext symbol address

_stext means the start of .text section (see __is_kernel_text()), but we
put its definition in .ref.text by mistake. Fix it by defining it in the
vmlinux.lds.S.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2 years agoLoongArch: Fix the !THP build
Huacai Chen [Wed, 22 Jun 2022 13:56:16 +0000 (21:56 +0800)]
LoongArch: Fix the !THP build

Fix the !THP build by making pmd_pfn() available in all configurations.
Because pmd_pfn() is used in mm/page_vma_mapped.c whether or not THP is
configured.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2 years agoMerge tag 'gpio-fixes-for-v5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 25 Jun 2022 00:01:31 +0000 (17:01 -0700)]
Merge tag 'gpio-fixes-for-v5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - make the irqchip immutable in gpio-realtek-otto

 - fix error code propagation in gpio-winbond

 - fix device removing in gpio-grgpio

 - fix a typo in gpio-mxs which indicates the driver is for a different
   model

 - documentation fixes

 - MAINTAINERS file updates

* tag 'gpio-fixes-for-v5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: mxs: Fix header comment
  gpio: Fix kernel-doc comments to nested union
  gpio: grgpio: Fix device removing
  gpio: winbond: Fix error code in winbond_gpio_get()
  gpio: realtek-otto: Make the irqchip immutable
  docs: driver-api: gpio: Fix filename mismatch
  MAINTAINERS: add include/dt-bindings/gpio to GPIO SUBSYSTEM

2 years agoMerge tag 'mtd/fixes-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 24 Jun 2022 21:04:08 +0000 (14:04 -0700)]
Merge tag 'mtd/fixes-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull mtd fixes from Miquel RAynal:
 "NAND controller fix:
   - gpmi: Fix busy timeout setting (wrong calculation)

  NAND chip driver fix:
   - Thoshiba: Revert the commit introducing support for a chip that
     might have been counterfeit"

* tag 'mtd/fixes-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: gpmi: Fix setting busy timeout setting
  Revert "mtd: rawnand: add support for Toshiba TC58NVG0S3HTA00 NAND flash"

2 years agoMerge tag 'spi-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Linus Torvalds [Fri, 24 Jun 2022 20:54:16 +0000 (13:54 -0700)]
Merge tag 'spi-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A bunch of driver specific fixes, plus a fix for spi-mem's status
  polling for devices that use GPIO chip selects and a DT bindings
  examples fix that helps with the validation work"

* tag 'spi-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: rockchip: Unmask IRQ at the final to avoid preemption
  spi: dt-bindings: Fix unevaluatedProperties warnings in examples
  spi: spi-mem: Fix spi_mem_poll_status()
  spi: cadence: Detect transmit FIFO depth
  spi: spi-cadence: Fix SPI CS gets toggling sporadically

2 years agoMerge tag 'regulator-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 24 Jun 2022 20:51:07 +0000 (13:51 -0700)]
Merge tag 'regulator-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "One fix for an incorrect device description for MP5496"

* tag 'regulator-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: qcom_smd: correct MP5496 ranges

2 years agoMerge tag 'regmap-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 24 Jun 2022 20:49:13 +0000 (13:49 -0700)]
Merge tag 'regmap-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fixes from Mark Brown:
 "Two sets of fixes - one for things that were missed with the support
  for custom bulk I/O operations introduced in the last merge window,
  and another for some long standing issues with regmap-irq which affect
  a fairly small subset of devices"

* tag 'regmap-fix-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap-irq: Fix offset/index mismatch in read_sub_irq_data()
  regmap-irq: Fix a bug in regmap_irq_enable() for type_in_mask chips
  regmap: Wire up regmap_config provided bulk write in missed functions
  regmap: Make regmap_noinc_read() return -ENOTSUPP if map->read isn't set
  regmap: Re-introduce bulk read support check in regmap_bulk_read()

2 years agoMerge tag 'iommu-fixes-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 24 Jun 2022 20:41:47 +0000 (13:41 -0700)]
Merge tag 'iommu-fixes-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Add a new IOMMU mailing list to the MAINTAINERS file to prepare for
   the a list migration happening on July 5th. The old list needs to
   stay in place until the switch happens to guarantee seemless
   archiving of list email.

 - Fix compatible device-tree string for rcar-gen4 in Renesas IOMMU
   driver.

* tag 'iommu-fixes-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  MAINTAINERS: Add new IOMMU development mailing list
  iommu/ipmmu-vmsa: Fix compatible for rcar-gen4